Merge tag 'char-misc-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big char/misc/whatever driver changes for 5.6-rc1

  Included in here are loads of things from a variety of different
  driver subsystems:
   - soundwire updates
   - binder updates
   - nvmem updates
   - firmware drivers updates
   - extcon driver updates
   - various misc driver updates
   - fpga driver updates
   - interconnect subsystem and driver updates
   - bus driver updates
   - uio driver updates
   - mei driver updates
   - w1 driver cleanups
   - various other small driver updates

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (86 commits)
  mei: me: add jasper point DID
  char: hpet: Use flexible-array member
  binder: fix log spam for existing debugfs file creation.
  mei: me: add comet point (lake) H device ids
  nvmem: add QTI SDAM driver
  dt-bindings: nvmem: add binding for QTI SPMI SDAM
  dt-bindings: imx-ocotp: Add i.MX8MP compatible
  dt-bindings: soundwire: fix example
  soundwire: cadence: fix kernel-doc parameter descriptions
  soundwire: intel: report slave_ids for each link to SOF driver
  siox: Use the correct style for SPDX License Identifier
  w1: omap-hdq: Simplify driver with PM runtime autosuspend
  firmware: stratix10-svc: Remove unneeded semicolon
  firmware: google: Probe for a GSMI handler in firmware
  firmware: google: Unregister driver_info on failure and exit in gsmi
  firmware: google: Release devices before unregistering the bus
  slimbus: qcom: add missed clk_disable_unprepare in remove
  slimbus: Use the correct style for SPDX License Identifier
  slimbus: qcom-ngd-ctrl: Use dma_request_chan() instead dma_request_slave_channel()
  dt-bindings: SLIMBus: add slim devices optional properties
  ...

Documentation/devicetree/bindings/interconnect/qcom,msm8916.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interconnect/qcom,msm8916.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm MSM8916 Network-On-Chip interconnect
+
+maintainers:
+  - Georgi Djakov <georgi.djakov@linaro.org>
+
+description: |
+   The Qualcomm MSM8916 interconnect providers support adjusting the
+   bandwidth requirements between the various NoC fabrics.
+
+properties:
+  compatible:
+    enum:
+      - qcom,msm8916-bimc
+      - qcom,msm8916-pcnoc
+      - qcom,msm8916-snoc
+
+  reg:
+    maxItems: 1
+
+  '#interconnect-cells':
+    const: 1
+
+  clock-names:
+    items:
+      - const: bus
+      - const: bus_a
+
+  clocks:
+    items:
+      - description: Bus Clock
+      - description: Bus A Clock
+
+required:
+  - compatible
+  - reg
+  - '#interconnect-cells'
+  - clock-names
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+      #include <dt-bindings/clock/qcom,rpmcc.h>
+
+      bimc: interconnect@400000 {
+              compatible = "qcom,msm8916-bimc";
+              reg = <0x00400000 0x62000>;
+              #interconnect-cells = <1>;
+              clock-names = "bus", "bus_a";
+              clocks = <&rpmcc RPM_SMD_BIMC_CLK>,
+                       <&rpmcc RPM_SMD_BIMC_A_CLK>;
+      };
+
+      pcnoc: interconnect@500000 {
+              compatible = "qcom,msm8916-pcnoc";
+              reg = <0x00500000 0x11000>;
+              #interconnect-cells = <1>;
+              clock-names = "bus", "bus_a";
+              clocks = <&rpmcc RPM_SMD_PCNOC_CLK>,
+                       <&rpmcc RPM_SMD_PCNOC_A_CLK>;
+      };
+
+      snoc: interconnect@580000 {
+              compatible = "qcom,msm8916-snoc";
+              reg = <0x00580000 0x14000>;
+              #interconnect-cells = <1>;
+              clock-names = "bus", "bus_a";
+              clocks = <&rpmcc RPM_SMD_SNOC_CLK>,
+                       <&rpmcc RPM_SMD_SNOC_A_CLK>;
+      };

Documentation/devicetree/bindings/nvmem/imx-ocotp.txt

@@ -2,7 +2,7 @@ Freescale i.MX6 On-Chip OTP Controller (OCOTP) device tree bindings
 
 This binding represents the on-chip eFuse OTP controller found on
 i.MX6Q/D, i.MX6DL/S, i.MX6SL, i.MX6SX, i.MX6UL, i.MX6ULL/ULZ, i.MX6SLL,
-i.MX7D/S, i.MX7ULP, i.MX8MQ, i.MX8MM and i.MX8MN SoCs.
+i.MX7D/S, i.MX7ULP, i.MX8MQ, i.MX8MM, i.MX8MN and i.MX8MP SoCs.
 
 Required properties:
 - compatible: should be one of
@@ -17,6 +17,7 @@ Required properties:
 	"fsl,imx8mq-ocotp" (i.MX8MQ),
 	"fsl,imx8mm-ocotp" (i.MX8MM),
 	"fsl,imx8mn-ocotp" (i.MX8MN),
+	"fsl,imx8mp-ocotp" (i.MX8MP),
 	followed by "syscon".
 - #address-cells : Should be 1
 - #size-cells : Should be 1

Documentation/devicetree/bindings/nvmem/qcom,spmi-sdam.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/qcom,spmi-sdam.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. SPMI SDAM DT bindings
+
+maintainers:
+  - Shyam Kumar Thella <sthella@codeaurora.org>
+
+description: |
+  The SDAM provides scratch register space for the PMIC clients. This
+  memory can be used by software to store information or communicate
+  to/from the PBUS.
+
+allOf:
+  - $ref: "nvmem.yaml#"
+
+properties:
+  compatible:
+    enum:
+      - qcom,spmi-sdam
+
+  reg:
+    maxItems: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
+  ranges: true
+
+required:
+  - compatible
+  - reg
+  - ranges
+
+patternProperties:
+  "^.*@[0-9a-f]+$":
+    type: object
+
+    properties:
+      reg:
+        maxItems: 1
+        description:
+          Offset and size in bytes within the storage device.
+
+      bits:
+        $ref: /schemas/types.yaml#/definitions/uint32-array
+        maxItems: 1
+        items:
+          items:
+            - minimum: 0
+              maximum: 7
+              description:
+                Offset in bit within the address range specified by reg.
+            - minimum: 1
+              description:
+                Size in bit within the address range specified by reg.
+
+    required:
+      - reg
+
+    additionalProperties: false
+
+examples:
+  - |
+      sdam_1: nvram@b000 {
+          #address-cells = <1>;
+          #size-cells = <1>;
+          compatible = "qcom,spmi-sdam";
+          reg = <0xb000 0x100>;
+          ranges = <0 0xb000 0x100>;
+
+          /* Data cells */
+          restart_reason: restart@50 {
+              reg = <0x50 0x1>;
+              bits = <6 2>;
+          };
+      };
+...

Documentation/devicetree/bindings/slimbus/bus.txt

@@ -32,6 +32,10 @@ Required property for SLIMbus child node if it is present:
 	 	  Product Code, shall be in lower case hexadecimal with leading
 		  zeroes suppressed
 
+Optional property for SLIMbus child node if it is present:
+- slim-ifc-dev	- Should be phandle to SLIMBus Interface device.
+		  Required for devices which deal with streams.
+
 SLIMbus example for Qualcomm's slimbus manager component:
 
 	slim@28080000 {
@@ -43,8 +47,14 @@ SLIMbus example for Qualcomm's slimbus manager component:
 		#address-cells = <2>;
 		#size-cell = <0>;
 
+		codec_ifd: ifd@0,0{
+			compatible = "slim217,60";
+			reg = <0 0>;
+		};
+
 		codec: wcd9310@1,0{
 			compatible = "slim217,60";
 			reg = <1 0>;
+			slim-ifc-dev  = <&codec_ifd>;
 		};
 	};

Documentation/devicetree/bindings/soundwire/qcom,sdw.txt

+Qualcomm SoundWire Controller Bindings
+
+
+This binding describes the Qualcomm SoundWire Controller along with its
+board specific bus parameters.
+
+- compatible:
+	Usage: required
+	Value type: <stringlist>
+	Definition: must be "qcom,soundwire-v<MAJOR>.<MINOR>.<STEP>",
+		    Example:
+			"qcom,soundwire-v1.3.0"
+			"qcom,soundwire-v1.5.0"
+			"qcom,soundwire-v1.6.0"
+- reg:
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: the base address and size of SoundWire controller
+		    address space.
+
+- interrupts:
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: should specify the SoundWire Controller IRQ
+
+- clock-names:
+	Usage: required
+	Value type: <stringlist>
+	Definition: should be "iface" for SoundWire Controller interface clock
+
+- clocks:
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: should specify the SoundWire Controller interface clock
+
+- #sound-dai-cells:
+	Usage: required
+	Value type: <u32>
+	Definition: must be 1 for digital audio interfaces on the controller.
+
+- qcom,dout-ports:
+	Usage: required
+	Value type: <u32>
+	Definition: must be count of data out ports
+
+- qcom,din-ports:
+	Usage: required
+	Value type: <u32>
+	Definition: must be count of data in ports
+
+- qcom,ports-offset1:
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: should specify payload transport window offset1 of each
+		    data port. Out ports followed by In ports.
+		    More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+- qcom,ports-offset2:
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: should specify payload transport window offset2 of each
+		    data port. Out ports followed by In ports.
+		    More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+- qcom,ports-sinterval-low:
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: should be sample interval low of each data port.
+		    Out ports followed by In ports. Used for Sample Interval
+		    calculation.
+		    More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+- qcom,ports-word-length:
+	Usage: optional
+	Value type: <prop-encoded-array>
+	Definition: should be size of payload channel sample.
+		    More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+- qcom,ports-block-pack-mode:
+	Usage: optional
+	Value type: <prop-encoded-array>
+	Definition: should be 0 or 1 to indicate the block packing mode.
+		    0 to indicate Blocks are per Channel
+		    1 to indicate Blocks are per Port.
+		    Out ports followed by In ports.
+		    More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+- qcom,ports-block-group-count:
+	Usage: optional
+	Value type: <prop-encoded-array>
+	Definition: should be in range 1 to 4 to indicate how many sample
+		    intervals are combined into a payload.
+		    Out ports followed by In ports.
+		    More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+- qcom,ports-lane-control:
+	Usage: optional
+	Value type: <prop-encoded-array>
+	Definition: should be in range 0 to 7 to identify which	data lane
+		    the data port uses.
+		    Out ports followed by In ports.
+		    More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+- qcom,ports-hstart:
+	Usage: optional
+	Value type: <prop-encoded-array>
+	Definition: should be number identifying lowerst numbered coloum in
+		    SoundWire Frame, i.e. left edge of the Transport sub-frame
+		    for each port. Values between 0 and 15 are valid.
+		    Out ports followed by In ports.
+		    More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+- qcom,ports-hstop:
+	Usage: optional
+	Value type: <prop-encoded-array>
+	Definition: should be number identifying highest numbered coloum in
+		    SoundWire Frame, i.e. the right edge of the Transport
+		    sub-frame for each port. Values between 0 and 15 are valid.
+		    Out ports followed by In ports.
+		    More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+- qcom,dports-type:
+	Usage: optional
+	Value type: <prop-encoded-array>
+	Definition: should be one of the following types
+		    0 for reduced port
+		    1 for simple ports
+		    2 for full port
+		    Out ports followed by In ports.
+		    More info in MIPI Alliance SoundWire 1.0 Specifications.
+
+Note:
+	More Information on detail of encoding of these fields can be
+found in MIPI Alliance SoundWire 1.0 Specifications.
+
+= SoundWire devices
+Each subnode of the bus represents SoundWire device attached to it.
+The properties of these nodes are defined by the individual bindings.
+
+= EXAMPLE
+The following example represents a SoundWire controller on DB845c board
+which has controller integrated inside WCD934x codec on SDM845 SoC.
+
+soundwire: soundwire@c85 {
+	compatible = "qcom,soundwire-v1.3.0";
+	reg = <0xc85 0x20>;
+	interrupts = <20 IRQ_TYPE_EDGE_RISING>;
+	clocks = <&wcc>;
+	clock-names = "iface";
+	#sound-dai-cells = <1>;
+	qcom,dports-type = <0>;
+	qcom,dout-ports	= <6>;
+	qcom,din-ports	= <2>;
+	qcom,ports-sinterval-low = /bits/ 8  <0x07 0x1F 0x3F 0x7 0x1F 0x3F 0x0F 0x0F>;
+	qcom,ports-offset1 = /bits/ 8 <0x01 0x02 0x0C 0x6 0x12 0x0D 0x07 0x0A >;
+	qcom,ports-offset2 = /bits/ 8 <0x00 0x00 0x1F 0x00 0x00 0x1F 0x00 0x00>;
+
+	/* Left Speaker */
+	left{
+		....
+	};
+
+	/* Right Speaker */
+	right{
+		....
+	};
+};

Documentation/devicetree/bindings/soundwire/soundwire-controller.yaml

@@ -69,6 +69,7 @@ examples:
             reg = <0 1>;
             powerdown-gpios = <&wcdpinctrl 2 0>;
             #thermal-sensor-cells = <0>;
+            #sound-dai-cells = <0>;
         };
 
         speaker@0,2 {
@@ -76,6 +77,7 @@ examples:
             reg = <0 2>;
             powerdown-gpios = <&wcdpinctrl 2 0>;
             #thermal-sensor-cells = <0>;
+            #sound-dai-cells = <0>;
         };
     };
 

Documentation/driver-api/interconnect.rst

@@ -91,3 +91,25 @@ Interconnect consumers are the clients which use the interconnect APIs to
 get paths between endpoints and set their bandwidth/latency/QoS requirements
 for these interconnect paths.  These interfaces are not currently
 documented.
+
+Interconnect debugfs interfaces
+-------------------------------
+
+Like several other subsystems interconnect will create some files for debugging
+and introspection. Files in debugfs are not considered ABI so application
+software shouldn't rely on format details change between kernel versions.
+
+``/sys/kernel/debug/interconnect/interconnect_summary``:
+
+Show all interconnect nodes in the system with their aggregated bandwidth
+request. Indented under each node show bandwidth requests from each device.
+
+``/sys/kernel/debug/interconnect/interconnect_graph``:
+
+Show the interconnect graph in the graphviz dot format. It shows all
+interconnect nodes and links in the system and groups together nodes from the
+same provider as subgraphs. The format is human-readable and can also be piped
+through dot to generate diagrams in many graphical formats::
+
+        $ cat /sys/kernel/debug/interconnect/interconnect_graph | \
+                dot -Tsvg > interconnect_graph.svg

drivers/android/binder.c

@@ -5199,10 +5199,11 @@ static int binder_mmap(struct file *filp, struct vm_area_struct *vma)
 
 static int binder_open(struct inode *nodp, struct file *filp)
 {
-	struct binder_proc *proc;
+	struct binder_proc *proc, *itr;
 	struct binder_device *binder_dev;
 	struct binderfs_info *info;
 	struct dentry *binder_binderfs_dir_entry_proc = NULL;
+	bool existing_pid = false;
 
 	binder_debug(BINDER_DEBUG_OPEN_CLOSE, "%s: %d:%d\n", __func__,
 		     current->group_leader->pid, current->pid);
@@ -5235,19 +5236,24 @@ static int binder_open(struct inode *nodp, struct file *filp)
 	filp->private_data = proc;
 
 	mutex_lock(&binder_procs_lock);
+	hlist_for_each_entry(itr, &binder_procs, proc_node) {
+		if (itr->pid == proc->pid) {
+			existing_pid = true;
+			break;
+		}
+	}
 	hlist_add_head(&proc->proc_node, &binder_procs);
 	mutex_unlock(&binder_procs_lock);
 
-	if (binder_debugfs_dir_entry_proc) {
+	if (binder_debugfs_dir_entry_proc && !existing_pid) {
 		char strbuf[11];
 
 		snprintf(strbuf, sizeof(strbuf), "%u", proc->pid);
 		/*
-		 * proc debug entries are shared between contexts, so
-		 * this will fail if the process tries to open the driver
-		 * again with a different context. The priting code will
-		 * anyway print all contexts that a given PID has, so this
-		 * is not a problem.
+		 * proc debug entries are shared between contexts.
+		 * Only create for the first PID to avoid debugfs log spamming
+		 * The printing code will anyway print all contexts for a given
+		 * PID so this is not a problem.
 		 */
 		proc->debugfs_entry = debugfs_create_file(strbuf, 0444,
 			binder_debugfs_dir_entry_proc,
@@ -5255,19 +5261,16 @@ static int binder_open(struct inode *nodp, struct file *filp)
 			&proc_fops);
 	}
 
-	if (binder_binderfs_dir_entry_proc) {
+	if (binder_binderfs_dir_entry_proc && !existing_pid) {
 		char strbuf[11];
 		struct dentry *binderfs_entry;
 
 		snprintf(strbuf, sizeof(strbuf), "%u", proc->pid);
 		/*
 		 * Similar to debugfs, the process specific log file is shared
-		 * between contexts. If the file has already been created for a
-		 * process, the following binderfs_create_file() call will
-		 * fail with error code EEXIST if another context of the same
-		 * process invoked binder_open(). This is ok since same as
-		 * debugfs, the log file will contain information on all
-		 * contexts of a given PID.
+		 * between contexts. Only create for the first PID.
+		 * This is ok since same as debugfs, the log file will contain
+		 * information on all contexts of a given PID.
 		 */
 		binderfs_entry = binderfs_create_file(binder_binderfs_dir_entry_proc,
 			strbuf, &proc_fops, (void *)(unsigned long)proc->pid);
@@ -5277,12 +5280,10 @@ static int binder_open(struct inode *nodp, struct file *filp)
 			int error;
 
 			error = PTR_ERR(binderfs_entry);
-			if (error != -EEXIST) {
 			pr_warn("Unable to create file %s in binderfs (error %d)\n",
 				strbuf, error);
 		}
 	}
-	}
 
 	return 0;
 }

drivers/bus/fsl-mc/fsl-mc-bus.c

@@ -715,9 +715,9 @@ EXPORT_SYMBOL_GPL(fsl_mc_device_remove);
 struct fsl_mc_device *fsl_mc_get_endpoint(struct fsl_mc_device *mc_dev)
 {
 	struct fsl_mc_device *mc_bus_dev, *endpoint;
-	struct fsl_mc_obj_desc endpoint_desc = { 0 };
-	struct dprc_endpoint endpoint1 = { 0 };
-	struct dprc_endpoint endpoint2 = { 0 };
+	struct fsl_mc_obj_desc endpoint_desc = {{ 0 }};
+	struct dprc_endpoint endpoint1 = {{ 0 }};
+	struct dprc_endpoint endpoint2 = {{ 0 }};
 	int state, err;
 
 	mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent);

drivers/char/hpet.c

@@ -110,7 +110,7 @@ struct hpets {
 	unsigned long hp_delta;
 	unsigned int hp_ntimer;
 	unsigned int hp_which;
-	struct hpet_dev hp_dev[1];
+	struct hpet_dev hp_dev[];
 };
 
 static struct hpets *hpets;

drivers/extcon/extcon-sm5502.c

@@ -249,7 +249,7 @@ static int sm5502_muic_set_path(struct sm5502_muic_info *info,
 		dev_err(info->dev, "Unknown DM_CON/DP_CON switch type (%d)\n",
 				con_sw);
 		return -EINVAL;
-	};
+	}
 
 	switch (vbus_sw) {
 	case VBUSIN_SWITCH_OPEN:
@@ -268,7 +268,7 @@ static int sm5502_muic_set_path(struct sm5502_muic_info *info,
 	default:
 		dev_err(info->dev, "Unknown VBUS switch type (%d)\n", vbus_sw);
 		return -EINVAL;
-	};
+	}
 
 	return 0;
 }
@@ -357,13 +357,13 @@ static unsigned int sm5502_muic_get_cable_type(struct sm5502_muic_info *info)
 				"cannot identify the cable type: adc(0x%x)\n",
 				adc);
 			return -EINVAL;
-		};
+		}
 		break;
 	default:
 		dev_err(info->dev,
 			"failed to identify the cable type: adc(0x%x)\n", adc);
 		return -EINVAL;
-	};
+	}
 
 	return cable_type;
 }
@@ -405,7 +405,7 @@ static int sm5502_muic_cable_handler(struct sm5502_muic_info *info,
 		dev_dbg(info->dev,
 			"cannot handle this cable_type (0x%x)\n", cable_type);
 		return 0;
-	};
+	}
 
 	/* Change internal hardware path(DM_CON/DP_CON, VBUSIN) */
 	ret = sm5502_muic_set_path(info, con_sw, vbus_sw, attached);

drivers/firmware/google/coreboot_table.c

@@ -163,8 +163,15 @@ static int coreboot_table_probe(struct platform_device *pdev)
 	return ret;
 }
 
+static int __cb_dev_unregister(struct device *dev, void *dummy)
+{
+	device_unregister(dev);
+	return 0;
+}
+
 static int coreboot_table_remove(struct platform_device *pdev)
 {
+	bus_for_each_dev(&coreboot_bus_type, NULL, NULL, __cb_dev_unregister);
 	bus_unregister(&coreboot_bus_type);
 	return 0;
 }

drivers/firmware/google/gsmi.c

@@ -76,6 +76,7 @@
 #define GSMI_CMD_LOG_S0IX_RESUME	0x0b
 #define GSMI_CMD_CLEAR_CONFIG		0x20
 #define GSMI_CMD_HANDSHAKE_TYPE		0xC1
+#define GSMI_CMD_RESERVED		0xff
 
 /* Magic entry type for kernel events */
 #define GSMI_LOG_ENTRY_TYPE_KERNEL     0xDEAD
@@ -746,6 +747,7 @@ MODULE_DEVICE_TABLE(dmi, gsmi_dmi_table);
 static __init int gsmi_system_valid(void)
 {
 	u32 hash;
+	u16 cmd, result;
 
 	if (!dmi_check_system(gsmi_dmi_table))
 		return -ENODEV;
@@ -780,6 +782,23 @@ static __init int gsmi_system_valid(void)
 		return -ENODEV;
 	}
 
+	/* Test the smihandler with a bogus command. If it leaves the
+	 * calling argument in %ax untouched, there is no handler for
+	 * GSMI commands.
+	 */
+	cmd = GSMI_CALLBACK | GSMI_CMD_RESERVED << 8;
+	asm volatile (
+		"outb %%al, %%dx\n\t"
+		: "=a" (result)
+		: "0" (cmd),
+		  "d" (acpi_gbl_FADT.smi_command)
+		: "memory", "cc"
+		);
+	if (cmd == result) {
+		pr_info("gsmi: no gsmi handler in firmware\n");
+		return -ENODEV;
+	}
+
 	/* Found */
 	return 0;
 }
@@ -1016,6 +1035,9 @@ static __init int gsmi_init(void)
 	dma_pool_destroy(gsmi_dev.dma_pool);
 	platform_device_unregister(gsmi_dev.pdev);
 	pr_info("gsmi: failed to load: %d\n", ret);
+#ifdef CONFIG_PM
+	platform_driver_unregister(&gsmi_driver_info);
+#endif
 	return ret;
 }
 
@@ -1037,6 +1059,9 @@ static void __exit gsmi_exit(void)
 	gsmi_buf_free(gsmi_dev.name_buf);
 	dma_pool_destroy(gsmi_dev.dma_pool);
 	platform_device_unregister(gsmi_dev.pdev);
+#ifdef CONFIG_PM
+	platform_driver_unregister(&gsmi_driver_info);
+#endif
 }
 
 module_init(gsmi_init);

drivers/firmware/stratix10-svc.c

@@ -268,7 +268,7 @@ static void svc_thread_cmd_config_status(struct stratix10_svc_controller *ctrl,
 		 */
 		msleep(1000);
 		count_in_sec--;
-	};
+	}
 
 	if (res.a0 == INTEL_SIP_SMC_STATUS_OK && count_in_sec)
 		cb_data->status = BIT(SVC_STATUS_RECONFIG_COMPLETED);
@@ -512,7 +512,7 @@ static int svc_normal_to_secure_thread(void *data)
 			break;
 
 		}
-	};
+	}
 
 	kfree(cbdata);
 	kfree(pdata);

drivers/fpga/dfl-afu-main.c

@@ -813,10 +813,8 @@ static int afu_dev_init(struct platform_device *pdev)
 static int afu_dev_destroy(struct platform_device *pdev)
 {
 	struct dfl_feature_platform_data *pdata = dev_get_platdata(&pdev->dev);
-	struct dfl_afu *afu;
 
 	mutex_lock(&pdata->lock);
-	afu = dfl_fpga_pdata_get_private(pdata);
 	afu_mmio_region_destroy(pdata);
 	afu_dma_region_destroy(pdata);
 	dfl_fpga_pdata_set_private(pdata, NULL);

drivers/fpga/dfl-fme-main.c

@@ -675,10 +675,8 @@ static int fme_dev_init(struct platform_device *pdev)
 static void fme_dev_destroy(struct platform_device *pdev)
 {
 	struct dfl_feature_platform_data *pdata = dev_get_platdata(&pdev->dev);
-	struct dfl_fme *fme;
 
 	mutex_lock(&pdata->lock);
-	fme = dfl_fpga_pdata_get_private(pdata);
 	dfl_fpga_pdata_set_private(pdata, NULL);
 	mutex_unlock(&pdata->lock);
 }

drivers/fpga/ts73xx-fpga.c

@@ -119,10 +119,8 @@ static int ts73xx_fpga_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	priv->io_base = devm_ioremap_resource(kdev, res);
-	if (IS_ERR(priv->io_base)) {
-		dev_err(kdev, "unable to remap registers\n");
+	if (IS_ERR(priv->io_base))
 		return PTR_ERR(priv->io_base);
-	}
 
 	mgr = devm_fpga_mgr_create(kdev, "TS-73xx FPGA Manager",
 				   &ts73xx_fpga_ops, priv);

drivers/fpga/xilinx-pr-decoupler.c

@@ -101,6 +101,7 @@ static int xlnx_pr_decoupler_probe(struct platform_device *pdev)
 
 	priv->clk = devm_clk_get(&pdev->dev, "aclk");
 	if (IS_ERR(priv->clk)) {
+		if (PTR_ERR(priv->clk) != -EPROBE_DEFER)
 			dev_err(&pdev->dev, "input clock not found\n");
 		return PTR_ERR(priv->clk);
 	}

drivers/interconnect/Makefile

 # SPDX-License-Identifier: GPL-2.0
 
+CFLAGS_core.o				:= -I$(src)
 icc-core-objs				:= core.o
 
 obj-$(CONFIG_INTERCONNECT)		+= icc-core.o

drivers/interconnect/core.c

@@ -19,45 +19,22 @@
 #include <linux/of.h>
 #include <linux/overflow.h>
 
+#include "internal.h"
+
+#define CREATE_TRACE_POINTS
+#include "trace.h"
+
 static DEFINE_IDR(icc_idr);
 static LIST_HEAD(icc_providers);
 static DEFINE_MUTEX(icc_lock);
 static struct dentry *icc_debugfs_dir;
 
-/**
- * struct icc_req - constraints that are attached to each node
- * @req_node: entry in list of requests for the particular @node
- * @node: the interconnect node to which this constraint applies
- * @dev: reference to the device that sets the constraints
- * @tag: path tag (optional)
- * @avg_bw: an integer describing the average bandwidth in kBps
- * @peak_bw: an integer describing the peak bandwidth in kBps
- */
-struct icc_req {
-	struct hlist_node req_node;
-	struct icc_node *node;
-	struct device *dev;
-	u32 tag;
-	u32 avg_bw;
-	u32 peak_bw;
-};
-
-/**
- * struct icc_path - interconnect path structure
- * @num_nodes: number of hops (nodes)
- * @reqs: array of the requests applicable to this path of nodes
- */
-struct icc_path {
-	size_t num_nodes;
-	struct icc_req reqs[];
-};
-
 static void icc_summary_show_one(struct seq_file *s, struct icc_node *n)
 {
 	if (!n)
 		return;
 
-	seq_printf(s, "%-30s %12u %12u\n",
+	seq_printf(s, "%-42s %12u %12u\n",
 		   n->name, n->avg_bw, n->peak_bw);
 }
 
@@ -65,8 +42,8 @@ static int icc_summary_show(struct seq_file *s, void *data)
 {
 	struct icc_provider *provider;
 
-	seq_puts(s, " node                                   avg         peak\n");
-	seq_puts(s, "--------------------------------------------------------\n");
+	seq_puts(s, " node                                  tag          avg         peak\n");
+	seq_puts(s, "--------------------------------------------------------------------\n");
 
 	mutex_lock(&icc_lock);
 
@@ -81,8 +58,8 @@ static int icc_summary_show(struct seq_file *s, void *data)
 				if (!r->dev)
 					continue;
 
-				seq_printf(s, "    %-26s %12u %12u\n",
-					   dev_name(r->dev), r->avg_bw,
+				seq_printf(s, "  %-27s %12u %12u %12u\n",
+					   dev_name(r->dev), r->tag, r->avg_bw,
 					   r->peak_bw);
 			}
 		}
@@ -94,6 +71,70 @@ static int icc_summary_show(struct seq_file *s, void *data)
 }
 DEFINE_SHOW_ATTRIBUTE(icc_summary);
 
+static void icc_graph_show_link(struct seq_file *s, int level,
+				struct icc_node *n, struct icc_node *m)
+{
+	seq_printf(s, "%s\"%d:%s\" -> \"%d:%s\"\n",
+		   level == 2 ? "\t\t" : "\t",
+		   n->id, n->name, m->id, m->name);
+}
+
+static void icc_graph_show_node(struct seq_file *s, struct icc_node *n)
+{
+	seq_printf(s, "\t\t\"%d:%s\" [label=\"%d:%s",
+		   n->id, n->name, n->id, n->name);
+	seq_printf(s, "\n\t\t\t|avg_bw=%ukBps", n->avg_bw);
+	seq_printf(s, "\n\t\t\t|peak_bw=%ukBps", n->peak_bw);
+	seq_puts(s, "\"]\n");
+}
+
+static int icc_graph_show(struct seq_file *s, void *data)
+{
+	struct icc_provider *provider;
+	struct icc_node *n;
+	int cluster_index = 0;
+	int i;
+
+	seq_puts(s, "digraph {\n\trankdir = LR\n\tnode [shape = record]\n");
+	mutex_lock(&icc_lock);
+
+	/* draw providers as cluster subgraphs */
+	cluster_index = 0;
+	list_for_each_entry(provider, &icc_providers, provider_list) {
+		seq_printf(s, "\tsubgraph cluster_%d {\n", ++cluster_index);
+		if (provider->dev)
+			seq_printf(s, "\t\tlabel = \"%s\"\n",
+				   dev_name(provider->dev));
+
+		/* draw nodes */
+		list_for_each_entry(n, &provider->nodes, node_list)
+			icc_graph_show_node(s, n);
+
+		/* draw internal links */
+		list_for_each_entry(n, &provider->nodes, node_list)
+			for (i = 0; i < n->num_links; ++i)
+				if (n->provider == n->links[i]->provider)
+					icc_graph_show_link(s, 2, n,
+							    n->links[i]);
+
+		seq_puts(s, "\t}\n");
+	}
+
+	/* draw external links */
+	list_for_each_entry(provider, &icc_providers, provider_list)
+		list_for_each_entry(n, &provider->nodes, node_list)
+			for (i = 0; i < n->num_links; ++i)
+				if (n->provider != n->links[i]->provider)
+					icc_graph_show_link(s, 1, n,
+							    n->links[i]);
+
+	mutex_unlock(&icc_lock);
+	seq_puts(s, "}");
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(icc_graph);
+
 static struct icc_node *node_find(const int id)
 {
 	return idr_find(&icc_idr, id);
@@ -244,6 +285,16 @@ static int apply_constraints(struct icc_path *path)
 	return ret;
 }
 
+int icc_std_aggregate(struct icc_node *node, u32 tag, u32 avg_bw,
+		      u32 peak_bw, u32 *agg_avg, u32 *agg_peak)
+{
+	*agg_avg += avg_bw;
+	*agg_peak = max(*agg_peak, peak_bw);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(icc_std_aggregate);
+
 /* of_icc_xlate_onecell() - Translate function using a single index.
  * @spec: OF phandle args to map into an interconnect node.
  * @data: private data (pointer to struct icc_onecell_data)
@@ -382,9 +433,17 @@ struct icc_path *of_icc_get(struct device *dev, const char *name)
 
 	mutex_lock(&icc_lock);
 	path = path_find(dev, src_node, dst_node);
-	if (IS_ERR(path))
-		dev_err(dev, "%s: invalid path=%ld\n", __func__, PTR_ERR(path));
 	mutex_unlock(&icc_lock);
+	if (IS_ERR(path)) {
+		dev_err(dev, "%s: invalid path=%ld\n", __func__, PTR_ERR(path));
+		return path;
+	}
+
+	if (name)
+		path->name = kstrdup_const(name, GFP_KERNEL);
+	else
+		path->name = kasprintf(GFP_KERNEL, "%s-%s",
+				       src_node->name, dst_node->name);
 
 	return path;
 }
@@ -436,9 +495,12 @@ int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw)
 	size_t i;
 	int ret;
 
-	if (!path || !path->num_nodes)
+	if (!path)
 		return 0;
 
+	if (WARN_ON(IS_ERR(path) || !path->num_nodes))
+		return -EINVAL;
+
 	mutex_lock(&icc_lock);
 
 	old_avg = path->reqs[0].avg_bw;
@@ -453,6 +515,8 @@ int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw)
 
 		/* aggregate requests for this node */
 		aggregate_requests(node);
+
+		trace_icc_set_bw(path, node, i, avg_bw, peak_bw);
 	}
 
 	ret = apply_constraints(path);
@@ -471,6 +535,8 @@ int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw)
 
 	mutex_unlock(&icc_lock);
 
+	trace_icc_set_bw_end(path, ret);
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(icc_set_bw);
@@ -507,9 +573,12 @@ struct icc_path *icc_get(struct device *dev, const int src_id, const int dst_id)
 		goto out;
 
 	path = path_find(dev, src, dst);
-	if (IS_ERR(path))
+	if (IS_ERR(path)) {
 		dev_err(dev, "%s: invalid path=%ld\n", __func__, PTR_ERR(path));
+		goto out;
+	}
 
+	path->name = kasprintf(GFP_KERNEL, "%s-%s", src->name, dst->name);
 out:
 	mutex_unlock(&icc_lock);
 	return path;
@@ -545,6 +614,7 @@ void icc_put(struct icc_path *path)
 	}
 	mutex_unlock(&icc_lock);
 
+	kfree_const(path->name);
 	kfree(path);
 }
 EXPORT_SYMBOL_GPL(icc_put);
@@ -742,6 +812,28 @@ void icc_node_del(struct icc_node *node)
 }
 EXPORT_SYMBOL_GPL(icc_node_del);
 
+/**
+ * icc_nodes_remove() - remove all previously added nodes from provider
+ * @provider: the interconnect provider we are removing nodes from
+ *
+ * Return: 0 on success, or an error code otherwise
+ */
+int icc_nodes_remove(struct icc_provider *provider)
+{
+	struct icc_node *n, *tmp;
+
+	if (WARN_ON(IS_ERR_OR_NULL(provider)))
+		return -EINVAL;
+
+	list_for_each_entry_safe_reverse(n, tmp, &provider->nodes, node_list) {
+		icc_node_del(n);
+		icc_node_destroy(n->id);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(icc_nodes_remove);
+
 /**
  * icc_provider_add() - add a new interconnect provider
  * @provider: the interconnect provider that will be added into topology
@@ -802,6 +894,8 @@ static int __init icc_init(void)
 	icc_debugfs_dir = debugfs_create_dir("interconnect", NULL);
 	debugfs_create_file("interconnect_summary", 0444,
 			    icc_debugfs_dir, NULL, &icc_summary_fops);
+	debugfs_create_file("interconnect_graph", 0444,
+			    icc_debugfs_dir, NULL, &icc_graph_fops);
 	return 0;
 }
 

drivers/interconnect/internal.h

+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Interconnect framework internal structs
+ *
+ * Copyright (c) 2019, Linaro Ltd.
+ * Author: Georgi Djakov <georgi.djakov@linaro.org>
+ */
+
+#ifndef __DRIVERS_INTERCONNECT_INTERNAL_H
+#define __DRIVERS_INTERCONNECT_INTERNAL_H
+
+/**
+ * struct icc_req - constraints that are attached to each node
+ * @req_node: entry in list of requests for the particular @node
+ * @node: the interconnect node to which this constraint applies
+ * @dev: reference to the device that sets the constraints
+ * @tag: path tag (optional)
+ * @avg_bw: an integer describing the average bandwidth in kBps
+ * @peak_bw: an integer describing the peak bandwidth in kBps
+ */
+struct icc_req {
+	struct hlist_node req_node;
+	struct icc_node *node;
+	struct device *dev;
+	u32 tag;
+	u32 avg_bw;
+	u32 peak_bw;
+};
+
+/**
+ * struct icc_path - interconnect path structure
+ * @name: a string name of the path (useful for ftrace)
+ * @num_nodes: number of hops (nodes)
+ * @reqs: array of the requests applicable to this path of nodes
+ */
+struct icc_path {
+	const char *name;
+	size_t num_nodes;
+	struct icc_req reqs[];
+};
+
+#endif

drivers/interconnect/qcom/Kconfig

@@ -5,6 +5,15 @@ config INTERCONNECT_QCOM
 	help
 	  Support for Qualcomm's Network-on-Chip interconnect hardware.
 
+config INTERCONNECT_QCOM_MSM8916
+	tristate "Qualcomm MSM8916 interconnect driver"
+	depends on INTERCONNECT_QCOM
+	depends on QCOM_SMD_RPM
+	select INTERCONNECT_QCOM_SMD_RPM
+	help
+	  This is a driver for the Qualcomm Network-on-Chip on msm8916-based
+	  platforms.
+
 config INTERCONNECT_QCOM_MSM8974
 	tristate "Qualcomm MSM8974 interconnect driver"
 	depends on INTERCONNECT_QCOM

drivers/interconnect/qcom/Makefile

 # SPDX-License-Identifier: GPL-2.0
 
+qnoc-msm8916-objs			:= msm8916.o
 qnoc-msm8974-objs			:= msm8974.o
 qnoc-qcs404-objs			:= qcs404.o
 qnoc-sdm845-objs			:= sdm845.o
 icc-smd-rpm-objs			:= smd-rpm.o
 
+obj-$(CONFIG_INTERCONNECT_QCOM_MSM8916) += qnoc-msm8916.o
 obj-$(CONFIG_INTERCONNECT_QCOM_MSM8974) += qnoc-msm8974.o
 obj-$(CONFIG_INTERCONNECT_QCOM_QCS404) += qnoc-qcs404.o
 obj-$(CONFIG_INTERCONNECT_QCOM_SDM845) += qnoc-sdm845.o

drivers/interconnect/qcom/msm8974.c

@@ -550,15 +550,6 @@ static struct msm8974_icc_desc msm8974_snoc = {
 	.num_nodes = ARRAY_SIZE(msm8974_snoc_nodes),
 };
 
-static int msm8974_icc_aggregate(struct icc_node *node, u32 tag, u32 avg_bw,
-				 u32 peak_bw, u32 *agg_avg, u32 *agg_peak)
-{
-	*agg_avg += avg_bw;
-	*agg_peak = max(*agg_peak, peak_bw);
-
-	return 0;
-}
-
 static void msm8974_icc_rpm_smd_send(struct device *dev, int rsc_type,
 				     char *name, int id, u64 val)
 {
@@ -603,7 +594,7 @@ static int msm8974_icc_set(struct icc_node *src, struct icc_node *dst)
 	qp = to_msm8974_icc_provider(provider);
 
 	list_for_each_entry(n, &provider->nodes, node_list)
-		msm8974_icc_aggregate(n, 0, n->avg_bw, n->peak_bw,
+		provider->aggregate(n, 0, n->avg_bw, n->peak_bw,
 				    &agg_avg, &agg_peak);
 
 	sum_bw = icc_units_to_bps(agg_avg);
@@ -652,7 +643,7 @@ static int msm8974_icc_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct icc_onecell_data *data;
 	struct icc_provider *provider;
-	struct icc_node *node, *tmp;
+	struct icc_node *node;
 	size_t num_nodes, i;
 	int ret;
 
@@ -694,7 +685,7 @@ static int msm8974_icc_probe(struct platform_device *pdev)
 	INIT_LIST_HEAD(&provider->nodes);
 	provider->dev = dev;
 	provider->set = msm8974_icc_set;
-	provider->aggregate = msm8974_icc_aggregate;
+	provider->aggregate = icc_std_aggregate;
 	provider->xlate = of_icc_xlate_onecell;
 	provider->data = data;
 
@@ -732,10 +723,7 @@ static int msm8974_icc_probe(struct platform_device *pdev)
 	return 0;
 
 err_del_icc:
-	list_for_each_entry_safe(node, tmp, &provider->nodes, node_list) {
-		icc_node_del(node);
-		icc_node_destroy(node->id);
-	}
+	icc_nodes_remove(provider);
 	icc_provider_del(provider);
 
 err_disable_clks:
@@ -747,16 +735,10 @@ static int msm8974_icc_probe(struct platform_device *pdev)
 static int msm8974_icc_remove(struct platform_device *pdev)
 {
 	struct msm8974_icc_provider *qp = platform_get_drvdata(pdev);
-	struct icc_provider *provider = &qp->provider;
-	struct icc_node *n, *tmp;
 
-	list_for_each_entry_safe(n, tmp, &provider->nodes, node_list) {
-		icc_node_del(n);
-		icc_node_destroy(n->id);
-	}
+	icc_nodes_remove(&qp->provider);
 	clk_bulk_disable_unprepare(qp->num_clks, qp->bus_clks);
-
-	return icc_provider_del(provider);
+	return icc_provider_del(&qp->provider);
 }
 
 static const struct of_device_id msm8974_noc_of_match[] = {

drivers/interconnect/qcom/qcs404.c

@@ -327,15 +327,6 @@ static struct qcom_icc_desc qcs404_snoc = {
 	.num_nodes = ARRAY_SIZE(qcs404_snoc_nodes),
 };
 
-static int qcom_icc_aggregate(struct icc_node *node, u32 tag, u32 avg_bw,
-			      u32 peak_bw, u32 *agg_avg, u32 *agg_peak)
-{
-	*agg_avg += avg_bw;
-	*agg_peak = max(*agg_peak, peak_bw);
-
-	return 0;
-}
-
 static int qcom_icc_set(struct icc_node *src, struct icc_node *dst)
 {
 	struct qcom_icc_provider *qp;
@@ -354,7 +345,7 @@ static int qcom_icc_set(struct icc_node *src, struct icc_node *dst)
 	qp = to_qcom_provider(provider);
 
 	list_for_each_entry(n, &provider->nodes, node_list)
-		qcom_icc_aggregate(n, 0, n->avg_bw, n->peak_bw,
+		provider->aggregate(n, 0, n->avg_bw, n->peak_bw,
 				    &agg_avg, &agg_peak);
 
 	sum_bw = icc_units_to_bps(agg_avg);
@@ -414,7 +405,7 @@ static int qnoc_probe(struct platform_device *pdev)
 	struct icc_provider *provider;
 	struct qcom_icc_node **qnodes;
 	struct qcom_icc_provider *qp;
-	struct icc_node *node, *tmp;
+	struct icc_node *node;
 	size_t num_nodes, i;
 	int ret;
 
@@ -456,7 +447,7 @@ static int qnoc_probe(struct platform_device *pdev)
 	INIT_LIST_HEAD(&provider->nodes);
 	provider->dev = dev;
 	provider->set = qcom_icc_set;
-	provider->aggregate = qcom_icc_aggregate;
+	provider->aggregate = icc_std_aggregate;
 	provider->xlate = of_icc_xlate_onecell;
 	provider->data = data;
 
@@ -494,10 +485,7 @@ static int qnoc_probe(struct platform_device *pdev)
 
 	return 0;
 err:
-	list_for_each_entry_safe(node, tmp, &provider->nodes, node_list) {
-		icc_node_del(node);
-		icc_node_destroy(node->id);
-	}
+	icc_nodes_remove(provider);
 	clk_bulk_disable_unprepare(qp->num_clks, qp->bus_clks);
 	icc_provider_del(provider);
 
@@ -507,16 +495,10 @@ static int qnoc_probe(struct platform_device *pdev)
 static int qnoc_remove(struct platform_device *pdev)
 {
 	struct qcom_icc_provider *qp = platform_get_drvdata(pdev);
-	struct icc_provider *provider = &qp->provider;
-	struct icc_node *n, *tmp;
 
-	list_for_each_entry_safe(n, tmp, &provider->nodes, node_list) {
-		icc_node_del(n);
-		icc_node_destroy(n->id);
-	}
+	icc_nodes_remove(&qp->provider);
 	clk_bulk_disable_unprepare(qp->num_clks, qp->bus_clks);
-
-	return icc_provider_del(provider);
+	return icc_provider_del(&qp->provider);
 }
 
 static const struct of_device_id qcs404_noc_of_match[] = {

drivers/interconnect/qcom/sdm845.c

@@ -855,11 +855,7 @@ static int qnoc_probe(struct platform_device *pdev)
 
 	return ret;
 err:
-	list_for_each_entry(node, &provider->nodes, node_list) {
-		icc_node_del(node);
-		icc_node_destroy(node->id);
-	}
-
+	icc_nodes_remove(provider);
 	icc_provider_del(provider);
 	return ret;
 }
@@ -867,15 +863,9 @@ static int qnoc_probe(struct platform_device *pdev)
 static int qnoc_remove(struct platform_device *pdev)
 {
 	struct qcom_icc_provider *qp = platform_get_drvdata(pdev);
-	struct icc_provider *provider = &qp->provider;
-	struct icc_node *n, *tmp;
-
-	list_for_each_entry_safe(n, tmp, &provider->nodes, node_list) {
-		icc_node_del(n);
-		icc_node_destroy(n->id);
-	}
 
-	return icc_provider_del(provider);
+	icc_nodes_remove(&qp->provider);
+	return icc_provider_del(&qp->provider);
 }
 
 static const struct of_device_id qnoc_of_match[] = {

drivers/interconnect/trace.h

+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Interconnect framework tracepoints
+ * Copyright (c) 2019, Linaro Ltd.
+ * Author: Georgi Djakov <georgi.djakov@linaro.org>
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM interconnect
+
+#if !defined(_TRACE_INTERCONNECT_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_INTERCONNECT_H
+
+#include <linux/interconnect.h>
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(icc_set_bw,
+
+	TP_PROTO(struct icc_path *p, struct icc_node *n, int i,
+		 u32 avg_bw, u32 peak_bw),
+
+	TP_ARGS(p, n, i, avg_bw, peak_bw),
+
+	TP_STRUCT__entry(
+		__string(path_name, p->name)
+		__string(dev, dev_name(p->reqs[i].dev))
+		__string(node_name, n->name)
+		__field(u32, avg_bw)
+		__field(u32, peak_bw)
+		__field(u32, node_avg_bw)
+		__field(u32, node_peak_bw)
+	),
+
+	TP_fast_assign(
+		__assign_str(path_name, p->name);
+		__assign_str(dev, dev_name(p->reqs[i].dev));
+		__assign_str(node_name, n->name);
+		__entry->avg_bw = avg_bw;
+		__entry->peak_bw = peak_bw;
+		__entry->node_avg_bw = n->avg_bw;
+		__entry->node_peak_bw = n->peak_bw;
+	),
+
+	TP_printk("path=%s dev=%s node=%s avg_bw=%u peak_bw=%u agg_avg=%u agg_peak=%u",
+		  __get_str(path_name),
+		  __get_str(dev),
+		  __get_str(node_name),
+		  __entry->avg_bw,
+		  __entry->peak_bw,
+		  __entry->node_avg_bw,
+		  __entry->node_peak_bw)
+);
+
+TRACE_EVENT(icc_set_bw_end,
+
+	TP_PROTO(struct icc_path *p, int ret),
+
+	TP_ARGS(p, ret),
+
+	TP_STRUCT__entry(
+		__string(path_name, p->name)
+		__string(dev, dev_name(p->reqs[0].dev))
+		__field(int, ret)
+	),
+
+	TP_fast_assign(
+		__assign_str(path_name, p->name);
+		__assign_str(dev, dev_name(p->reqs[0].dev));
+		__entry->ret = ret;
+	),
+
+	TP_printk("path=%s dev=%s ret=%d",
+		  __get_str(path_name),
+		  __get_str(dev),
+		  __entry->ret)
+);
+
+#endif /* _TRACE_INTERCONNECT_H */
+
+/* This part must be outside protection */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE trace
+
+#include <trace/define_trace.h>

drivers/misc/cardreader/alcor_pci.c

@@ -38,12 +38,18 @@ static const struct alcor_dev_cfg au6621_cfg = {
 	.dma = 1,
 };
 
+static const struct alcor_dev_cfg au6625_cfg = {
+	.dma = 0,
+};
+
 static const struct pci_device_id pci_ids[] = {
 	{ PCI_DEVICE(PCI_ID_ALCOR_MICRO, PCI_ID_AU6601),
 		.driver_data = (kernel_ulong_t)&alcor_cfg },
 	{ PCI_DEVICE(PCI_ID_ALCOR_MICRO, PCI_ID_AU6621),
 		.driver_data = (kernel_ulong_t)&au6621_cfg },
-	{ },
+	{ PCI_DEVICE(PCI_ID_ALCOR_MICRO, PCI_ID_AU6625),
+		.driver_data = (kernel_ulong_t)&au6625_cfg },
+	{},
 };
 MODULE_DEVICE_TABLE(pci, pci_ids);
 

drivers/misc/cardreader/rts5261.c

@@ -628,7 +628,8 @@ int rts5261_pci_switch_clock(struct rtsx_pcr *pcr, unsigned int card_clock,
 		u8 ssc_depth, bool initial_mode, bool double_clk, bool vpclk)
 {
 	int err, clk;
-	u8 n, clk_divider, mcu_cnt, div;
+	u16 n;
+	u8 clk_divider, mcu_cnt, div;
 	static const u8 depth[] = {
 		[RTSX_SSC_DEPTH_4M] = RTS5261_SSC_DEPTH_4M,
 		[RTSX_SSC_DEPTH_2M] = RTS5261_SSC_DEPTH_2M,
@@ -661,13 +662,13 @@ int rts5261_pci_switch_clock(struct rtsx_pcr *pcr, unsigned int card_clock,
 		return 0;
 
 	if (pcr->ops->conv_clk_and_div_n)
-		n = (u8)pcr->ops->conv_clk_and_div_n(clk, CLK_TO_DIV_N);
+		n = pcr->ops->conv_clk_and_div_n(clk, CLK_TO_DIV_N);
 	else
-		n = (u8)(clk - 4);
+		n = clk - 4;
 	if ((clk <= 4) || (n > 396))
 		return -EINVAL;
 
-	mcu_cnt = (u8)(125/clk + 3);
+	mcu_cnt = 125/clk + 3;
 	if (mcu_cnt > 15)
 		mcu_cnt = 15;
 
@@ -676,7 +677,7 @@ int rts5261_pci_switch_clock(struct rtsx_pcr *pcr, unsigned int card_clock,
 		if (pcr->ops->conv_clk_and_div_n) {
 			int dbl_clk = pcr->ops->conv_clk_and_div_n(n,
 					DIV_N_TO_CLK) * 2;
-			n = (u8)pcr->ops->conv_clk_and_div_n(dbl_clk,
+			n = pcr->ops->conv_clk_and_div_n(dbl_clk,
 					CLK_TO_DIV_N);
 		} else {
 			n = (n + 4) * 2 - 4;

drivers/misc/cxl/context.c

@@ -352,7 +352,7 @@ void cxl_context_free(struct cxl_context *ctx)
 void cxl_context_mm_count_get(struct cxl_context *ctx)
 {
 	if (ctx->mm)
-		atomic_inc(&ctx->mm->mm_count);
+		mmgrab(ctx->mm);
 }
 
 void cxl_context_mm_count_put(struct cxl_context *ctx)

drivers/misc/genwqe/card_ddcb.c

@@ -1084,7 +1084,7 @@ static int setup_ddcb_queue(struct genwqe_dev *cd, struct ddcb_queue *queue)
 				queue->ddcb_daddr);
 	queue->ddcb_vaddr = NULL;
 	queue->ddcb_daddr = 0ull;
-	return -ENODEV;
+	return rc;
 
 }
 
@@ -1179,7 +1179,7 @@ static irqreturn_t genwqe_vf_isr(int irq, void *dev_id)
  */
 static int genwqe_card_thread(void *data)
 {
-	int should_stop = 0, rc = 0;
+	int should_stop = 0;
 	struct genwqe_dev *cd = (struct genwqe_dev *)data;
 
 	while (!kthread_should_stop()) {
@@ -1187,12 +1187,12 @@ static int genwqe_card_thread(void *data)
 		genwqe_check_ddcb_queue(cd, &cd->queue);
 
 		if (GENWQE_POLLING_ENABLED) {
-			rc = wait_event_interruptible_timeout(
+			wait_event_interruptible_timeout(
 				cd->queue_waitq,
 				genwqe_ddcbs_in_flight(cd) ||
 				(should_stop = kthread_should_stop()), 1);
 		} else {
-			rc = wait_event_interruptible_timeout(
+			wait_event_interruptible_timeout(
 				cd->queue_waitq,
 				genwqe_next_ddcb_ready(cd) ||
 				(should_stop = kthread_should_stop()), HZ);

drivers/misc/isl29020.c

@@ -173,6 +173,7 @@ static int  isl29020_probe(struct i2c_client *client,
 
 static int isl29020_remove(struct i2c_client *client)
 {
+	pm_runtime_disable(&client->dev);
 	sysfs_remove_group(&client->dev.kobj, &m_als_gr);
 	return 0;
 }

drivers/misc/mei/bus.c

@@ -765,7 +765,7 @@ static ssize_t uuid_show(struct device *dev, struct device_attribute *a,
 	struct mei_cl_device *cldev = to_mei_cl_device(dev);
 	const uuid_le *uuid = mei_me_cl_uuid(cldev->me_cl);
 
-	return scnprintf(buf, PAGE_SIZE, "%pUl", uuid);
+	return sprintf(buf, "%pUl", uuid);
 }
 static DEVICE_ATTR_RO(uuid);
 
@@ -775,7 +775,7 @@ static ssize_t version_show(struct device *dev, struct device_attribute *a,
 	struct mei_cl_device *cldev = to_mei_cl_device(dev);
 	u8 version = mei_me_cl_ver(cldev->me_cl);
 
-	return scnprintf(buf, PAGE_SIZE, "%02X", version);
+	return sprintf(buf, "%02X", version);
 }
 static DEVICE_ATTR_RO(version);
 
@@ -797,7 +797,7 @@ static ssize_t max_conn_show(struct device *dev, struct device_attribute *a,
 	struct mei_cl_device *cldev = to_mei_cl_device(dev);
 	u8 maxconn = mei_me_cl_max_conn(cldev->me_cl);
 
-	return scnprintf(buf, PAGE_SIZE, "%d", maxconn);
+	return sprintf(buf, "%d", maxconn);
 }
 static DEVICE_ATTR_RO(max_conn);
 
@@ -807,7 +807,7 @@ static ssize_t fixed_show(struct device *dev, struct device_attribute *a,
 	struct mei_cl_device *cldev = to_mei_cl_device(dev);
 	u8 fixed = mei_me_cl_fixed(cldev->me_cl);
 
-	return scnprintf(buf, PAGE_SIZE, "%d", fixed);
+	return sprintf(buf, "%d", fixed);
 }
 static DEVICE_ATTR_RO(fixed);
 
@@ -817,7 +817,7 @@ static ssize_t max_len_show(struct device *dev, struct device_attribute *a,
 	struct mei_cl_device *cldev = to_mei_cl_device(dev);
 	u32 maxlen = mei_me_cl_max_len(cldev->me_cl);
 
-	return scnprintf(buf, PAGE_SIZE, "%u", maxlen);
+	return sprintf(buf, "%u", maxlen);
 }
 static DEVICE_ATTR_RO(max_len);
 

drivers/misc/mei/hdcp/mei_hdcp.c

@@ -757,11 +757,38 @@ static const struct component_master_ops mei_component_master_ops = {
 	.unbind = mei_component_master_unbind,
 };
 
+/**
+ * mei_hdcp_component_match - compare function for matching mei hdcp.
+ *
+ *    The function checks if the driver is i915, the subcomponent is HDCP
+ *    and the grand parent of hdcp and the parent of i915 are the same
+ *    PCH device.
+ *
+ * @dev: master device
+ * @subcomponent: subcomponent to match (I915_COMPONENT_HDCP)
+ * @data: compare data (mei hdcp device)
+ *
+ * Return:
+ * * 1 - if components match
+ * * 0 - otherwise
+ */
 static int mei_hdcp_component_match(struct device *dev, int subcomponent,
 				    void *data)
 {
-	return !strcmp(dev->driver->name, "i915") &&
-	       subcomponent == I915_COMPONENT_HDCP;
+	struct device *base = data;
+
+	if (strcmp(dev->driver->name, "i915") ||
+	    subcomponent != I915_COMPONENT_HDCP)
+		return 0;
+
+	base = base->parent;
+	if (!base)
+		return 0;
+
+	base = base->parent;
+	dev = dev->parent;
+
+	return (base && dev && dev == base);
 }
 
 static int mei_hdcp_probe(struct mei_cl_device *cldev,
@@ -785,7 +812,7 @@ static int mei_hdcp_probe(struct mei_cl_device *cldev,
 
 	master_match = NULL;
 	component_match_add_typed(&cldev->dev, &master_match,
-				  mei_hdcp_component_match, comp_master);
+				  mei_hdcp_component_match, &cldev->dev);
 	if (IS_ERR_OR_NULL(master_match)) {
 		ret = -ENOMEM;
 		goto err_exit;

drivers/misc/mei/hw-me-regs.h

@@ -81,10 +81,16 @@
 
 #define MEI_DEV_ID_CMP_LP     0x02e0  /* Comet Point LP */
 #define MEI_DEV_ID_CMP_LP_3   0x02e4  /* Comet Point LP 3 (iTouch) */
+
 #define MEI_DEV_ID_CMP_V      0xA3BA  /* Comet Point Lake V */
 
+#define MEI_DEV_ID_CMP_H      0x06e0  /* Comet Lake H */
+#define MEI_DEV_ID_CMP_H_3    0x06e4  /* Comet Lake H 3 (iTouch) */
+
 #define MEI_DEV_ID_ICP_LP     0x34E0  /* Ice Lake Point LP */
 
+#define MEI_DEV_ID_JSP_N      0x4DE0  /* Jasper Lake Point N */
+
 #define MEI_DEV_ID_TGP_LP     0xA0E0  /* Tiger Lake Point LP */
 
 #define MEI_DEV_ID_MCC        0x4B70  /* Mule Creek Canyon (EHL) */

drivers/misc/mei/pci-me.c

@@ -99,11 +99,15 @@ static const struct pci_device_id mei_me_pci_tbl[] = {
 	{MEI_PCI_DEVICE(MEI_DEV_ID_CMP_LP, MEI_ME_PCH12_CFG)},
 	{MEI_PCI_DEVICE(MEI_DEV_ID_CMP_LP_3, MEI_ME_PCH8_CFG)},
 	{MEI_PCI_DEVICE(MEI_DEV_ID_CMP_V, MEI_ME_PCH12_CFG)},
+	{MEI_PCI_DEVICE(MEI_DEV_ID_CMP_H, MEI_ME_PCH12_CFG)},
+	{MEI_PCI_DEVICE(MEI_DEV_ID_CMP_H_3, MEI_ME_PCH8_CFG)},
 
 	{MEI_PCI_DEVICE(MEI_DEV_ID_ICP_LP, MEI_ME_PCH12_CFG)},
 
 	{MEI_PCI_DEVICE(MEI_DEV_ID_TGP_LP, MEI_ME_PCH15_CFG)},
 
+	{MEI_PCI_DEVICE(MEI_DEV_ID_JSP_N, MEI_ME_PCH15_CFG)},
+
 	{MEI_PCI_DEVICE(MEI_DEV_ID_MCC, MEI_ME_PCH15_CFG)},
 	{MEI_PCI_DEVICE(MEI_DEV_ID_MCC_4, MEI_ME_PCH8_CFG)},
 

drivers/misc/mic/card/mic_debugfs.c

@@ -65,9 +65,6 @@ void __init mic_create_card_debug_dir(struct mic_driver *mdrv)
  */
 void mic_delete_card_debug_dir(struct mic_driver *mdrv)
 {
-	if (!mdrv->dbg_dir)
-		return;
-
 	debugfs_remove_recursive(mdrv->dbg_dir);
 }
 

drivers/misc/mic/cosm/cosm_debugfs.c

@@ -102,9 +102,6 @@ void cosm_create_debug_dir(struct cosm_device *cdev)
 
 void cosm_delete_debug_dir(struct cosm_device *cdev)
 {
-	if (!cdev->dbg_dir)
-		return;
-
 	debugfs_remove_recursive(cdev->dbg_dir);
 }
 

drivers/misc/mic/host/mic_debugfs.c

@@ -129,9 +129,6 @@ void mic_create_debug_dir(struct mic_device *mdev)
  */
 void mic_delete_debug_dir(struct mic_device *mdev)
 {
-	if (!mdev->dbg_dir)
-		return;
-
 	debugfs_remove_recursive(mdev->dbg_dir);
 }
 

drivers/misc/pti.c

@@ -792,7 +792,7 @@ static int pti_pci_probe(struct pci_dev *pdev,
 		const struct pci_device_id *ent)
 {
 	unsigned int a;
-	int retval = -EINVAL;
+	int retval;
 	int pci_bar = 1;
 
 	dev_dbg(&pdev->dev, "%s %s(%d): PTI PCI ID %04x:%04x\n", __FILE__,
@@ -910,7 +910,7 @@ static struct pci_driver pti_pci_driver = {
  */
 static int __init pti_init(void)
 {
-	int retval = -EINVAL;
+	int retval;
 
 	/* First register module as tty device */
 

drivers/misc/pvpanic.c

@@ -10,16 +10,16 @@
 
 #include <linux/acpi.h>
 #include <linux/kernel.h>
+#include <linux/kexec.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/platform_device.h>
 #include <linux/types.h>
+#include <uapi/misc/pvpanic.h>
 
 static void __iomem *base;
 
-#define PVPANIC_PANICKED        (1 << 0)
-
 MODULE_AUTHOR("Hu Tao <hutao@cn.fujitsu.com>");
 MODULE_DESCRIPTION("pvpanic device driver");
 MODULE_LICENSE("GPL");
@@ -34,7 +34,13 @@ static int
 pvpanic_panic_notify(struct notifier_block *nb, unsigned long code,
 		     void *unused)
 {
-	pvpanic_send_event(PVPANIC_PANICKED);
+	unsigned int event = PVPANIC_PANICKED;
+
+	if (kexec_crash_loaded())
+		event = PVPANIC_CRASH_LOADED;
+
+	pvpanic_send_event(event);
+
 	return NOTIFY_DONE;
 }
 

drivers/misc/sram-exec.c

@@ -85,6 +85,7 @@ void *sram_exec_copy(struct gen_pool *pool, void *dst, void *src,
 	unsigned long base;
 	int pages;
 	void *dst_cpy;
+	int ret;
 
 	mutex_lock(&exec_pool_list_mutex);
 	list_for_each_entry(p, &exec_pool_list, list) {
@@ -104,16 +105,28 @@ void *sram_exec_copy(struct gen_pool *pool, void *dst, void *src,
 
 	mutex_lock(&part->lock);
 
-	set_memory_nx((unsigned long)base, pages);
-	set_memory_rw((unsigned long)base, pages);
+	ret = set_memory_nx((unsigned long)base, pages);
+	if (ret)
+		goto error_out;
+	ret = set_memory_rw((unsigned long)base, pages);
+	if (ret)
+		goto error_out;
 
 	dst_cpy = fncpy(dst, src, size);
 
-	set_memory_ro((unsigned long)base, pages);
-	set_memory_x((unsigned long)base, pages);
+	ret = set_memory_ro((unsigned long)base, pages);
+	if (ret)
+		goto error_out;
+	ret = set_memory_x((unsigned long)base, pages);
+	if (ret)
+		goto error_out;
 
 	mutex_unlock(&part->lock);
 
 	return dst_cpy;
+
+error_out:
+	mutex_unlock(&part->lock);
+	return NULL;
 }
 EXPORT_SYMBOL_GPL(sram_exec_copy);

drivers/misc/ti-st/st_core.c

@@ -736,8 +736,8 @@ static int st_tty_open(struct tty_struct *tty)
 
 static void st_tty_close(struct tty_struct *tty)
 {
-	unsigned char i = ST_MAX_CHANNELS;
-	unsigned long flags = 0;
+	unsigned char i;
+	unsigned long flags;
 	struct	st_data_s *st_gdata = tty->disc_data;
 
 	pr_info("%s ", __func__);

drivers/misc/tsl2550.c

@@ -148,16 +148,14 @@ static int tsl2550_calculate_lux(u8 ch0, u8 ch1)
 	u16 c0 = count_lut[ch0];
 	u16 c1 = count_lut[ch1];
 
+	/* Avoid division by 0 and count 1 cannot be greater than count 0 */
+	if (c1 <= c0)
+		if (c0) {
 			/*
 			 * Calculate ratio.
 			 * Note: the "128" is a scaling factor
 			 */
-	u8 r = 128;
-
-	/* Avoid division by 0 and count 1 cannot be greater than count 0 */
-	if (c1 <= c0)
-		if (c0) {
-			r = c1 * 128 / c0;
+			u8 r = c1 * 128 / c0;
 
 			/* Calculate LUX */
 			lux = ((c0 - c1) * ratio_lut[r]) / 256;

drivers/misc/xilinx_sdfec.c

@@ -733,7 +733,7 @@ static int xsdfec_set_order(struct xsdfec_dev *xsdfec, void __user *arg)
 	enum xsdfec_order order;
 	int err;
 
-	err = get_user(order, (enum xsdfec_order *)arg);
+	err = get_user(order, (enum xsdfec_order __user *)arg);
 	if (err)
 		return -EFAULT;
 
@@ -1025,25 +1025,25 @@ static long xsdfec_dev_compat_ioctl(struct file *file, unsigned int cmd,
 }
 #endif
 
-static unsigned int xsdfec_poll(struct file *file, poll_table *wait)
+static __poll_t xsdfec_poll(struct file *file, poll_table *wait)
 {
-	unsigned int mask = 0;
+	__poll_t mask = 0;
 	struct xsdfec_dev *xsdfec;
 
 	xsdfec = container_of(file->private_data, struct xsdfec_dev, miscdev);
 
 	if (!xsdfec)
-		return POLLNVAL | POLLHUP;
+		return EPOLLNVAL | EPOLLHUP;
 
 	poll_wait(file, &xsdfec->waitq, wait);
 
 	/* XSDFEC ISR detected an error */
 	spin_lock_irqsave(&xsdfec->error_data_lock, xsdfec->flags);
 	if (xsdfec->state_updated)
-		mask |= POLLIN | POLLPRI;
+		mask |= EPOLLIN | EPOLLPRI;
 
 	if (xsdfec->stats_updated)
-		mask |= POLLIN | POLLRDNORM;
+		mask |= EPOLLIN | EPOLLRDNORM;
 	spin_unlock_irqrestore(&xsdfec->error_data_lock, xsdfec->flags);
 
 	return mask;

drivers/nvmem/Kconfig

@@ -109,6 +109,14 @@ config QCOM_QFPROM
 	  This driver can also be built as a module. If so, the module
 	  will be called nvmem_qfprom.
 
+config NVMEM_SPMI_SDAM
+	tristate "SPMI SDAM Support"
+	depends on SPMI
+	help
+	  This driver supports the Shared Direct Access Memory Module on
+	  Qualcomm Technologies, Inc. PMICs. It provides the clients
+	  an interface to read/write to the SDAM module's shared memory.
+
 config ROCKCHIP_EFUSE
 	tristate "Rockchip eFuse Support"
 	depends on ARCH_ROCKCHIP || COMPILE_TEST

drivers/nvmem/Makefile

@@ -28,6 +28,8 @@ obj-$(CONFIG_MTK_EFUSE)		+= nvmem_mtk-efuse.o
 nvmem_mtk-efuse-y		:= mtk-efuse.o
 obj-$(CONFIG_QCOM_QFPROM)	+= nvmem_qfprom.o
 nvmem_qfprom-y			:= qfprom.o
+obj-$(CONFIG_NVMEM_SPMI_SDAM)	+= nvmem_qcom-spmi-sdam.o
+nvmem_qcom-spmi-sdam-y		+= qcom-spmi-sdam.o
 obj-$(CONFIG_ROCKCHIP_EFUSE)	+= nvmem_rockchip_efuse.o
 nvmem_rockchip_efuse-y		:= rockchip-efuse.o
 obj-$(CONFIG_ROCKCHIP_OTP)	+= nvmem-rockchip-otp.o

drivers/nvmem/core.c

@@ -83,7 +83,7 @@ static void nvmem_cell_drop(struct nvmem_cell *cell)
 	list_del(&cell->node);
 	mutex_unlock(&nvmem_mutex);
 	of_node_put(cell->np);
-	kfree(cell->name);
+	kfree_const(cell->name);
 	kfree(cell);
 }
 
@@ -110,7 +110,9 @@ static int nvmem_cell_info_to_nvmem_cell(struct nvmem_device *nvmem,
 	cell->nvmem = nvmem;
 	cell->offset = info->offset;
 	cell->bytes = info->bytes;
-	cell->name = info->name;
+	cell->name = kstrdup_const(info->name, GFP_KERNEL);
+	if (!cell->name)
+		return -ENOMEM;
 
 	cell->bit_offset = info->bit_offset;
 	cell->nbits = info->nbits;
@@ -300,7 +302,7 @@ static int nvmem_add_cells_from_of(struct nvmem_device *nvmem)
 			dev_err(dev, "cell %s unaligned to nvmem stride %d\n",
 				cell->name, nvmem->stride);
 			/* Cells already added will be freed later. */
-			kfree(cell->name);
+			kfree_const(cell->name);
 			kfree(cell);
 			return -EINVAL;
 		}

drivers/nvmem/imx-ocotp-scu.c

@@ -15,8 +15,7 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 
-#define IMX_SIP_OTP			0xC200000A
-#define IMX_SIP_OTP_WRITE		0x2
+#define IMX_SIP_OTP_WRITE		0xc200000B
 
 enum ocotp_devtype {
 	IMX8QXP,
@@ -139,8 +138,8 @@ static int imx_scu_ocotp_read(void *context, unsigned int offset,
 	void *p;
 	int i, ret;
 
-	index = offset >> 2;
-	num_bytes = round_up((offset % 4) + bytes, 4);
+	index = offset;
+	num_bytes = round_up(bytes, 4);
 	count = num_bytes >> 2;
 
 	if (count > (priv->data->nregs - index))
@@ -169,7 +168,7 @@ static int imx_scu_ocotp_read(void *context, unsigned int offset,
 		buf++;
 	}
 
-	memcpy(val, (u8 *)p + offset % 4, bytes);
+	memcpy(val, (u8 *)p, bytes);
 
 	mutex_unlock(&scu_ocotp_mutex);
 
@@ -189,10 +188,10 @@ static int imx_scu_ocotp_write(void *context, unsigned int offset,
 	int ret;
 
 	/* allow only writing one complete OTP word at a time */
-	if ((bytes != 4) || (offset % 4))
+	if (bytes != 4)
 		return -EINVAL;
 
-	index = offset >> 2;
+	index = offset;
 
 	if (in_hole(context, index))
 		return -EINVAL;
@@ -212,8 +211,7 @@ static int imx_scu_ocotp_write(void *context, unsigned int offset,
 
 	mutex_lock(&scu_ocotp_mutex);
 
-	arm_smccc_smc(IMX_SIP_OTP, IMX_SIP_OTP_WRITE, index, *buf,
-		      0, 0, 0, 0, &res);
+	arm_smccc_smc(IMX_SIP_OTP_WRITE, index, *buf, 0, 0, 0, 0, 0, &res);
 
 	mutex_unlock(&scu_ocotp_mutex);
 

drivers/nvmem/imx-ocotp.c

@@ -44,6 +44,14 @@
 #define IMX_OCOTP_BM_CTRL_ERROR		0x00000200
 #define IMX_OCOTP_BM_CTRL_REL_SHADOWS	0x00000400
 
+#define IMX_OCOTP_BM_CTRL_DEFAULT				\
+	{							\
+		.bm_addr = IMX_OCOTP_BM_CTRL_ADDR,		\
+		.bm_busy = IMX_OCOTP_BM_CTRL_BUSY,		\
+		.bm_error = IMX_OCOTP_BM_CTRL_ERROR,		\
+		.bm_rel_shadows = IMX_OCOTP_BM_CTRL_REL_SHADOWS,\
+	}
+
 #define TIMING_STROBE_PROG_US		10	/* Min time to blow a fuse */
 #define TIMING_STROBE_READ_NS		37	/* Min time before read */
 #define TIMING_RELAX_NS			17
@@ -62,18 +70,31 @@ struct ocotp_priv {
 	struct nvmem_config *config;
 };
 
+struct ocotp_ctrl_reg {
+	u32 bm_addr;
+	u32 bm_busy;
+	u32 bm_error;
+	u32 bm_rel_shadows;
+};
+
 struct ocotp_params {
 	unsigned int nregs;
 	unsigned int bank_address_words;
 	void (*set_timing)(struct ocotp_priv *priv);
+	struct ocotp_ctrl_reg ctrl;
 };
 
-static int imx_ocotp_wait_for_busy(void __iomem *base, u32 flags)
+static int imx_ocotp_wait_for_busy(struct ocotp_priv *priv, u32 flags)
 {
 	int count;
 	u32 c, mask;
+	u32 bm_ctrl_busy, bm_ctrl_error;
+	void __iomem *base = priv->base;
 
-	mask = IMX_OCOTP_BM_CTRL_BUSY | IMX_OCOTP_BM_CTRL_ERROR | flags;
+	bm_ctrl_busy = priv->params->ctrl.bm_busy;
+	bm_ctrl_error = priv->params->ctrl.bm_error;
+
+	mask = bm_ctrl_busy | bm_ctrl_error | flags;
 
 	for (count = 10000; count >= 0; count--) {
 		c = readl(base + IMX_OCOTP_ADDR_CTRL);
@@ -97,7 +118,7 @@ static int imx_ocotp_wait_for_busy(void __iomem *base, u32 flags)
 		 * - A read is performed to from a fuse word which has been read
 		 *   locked.
 		 */
-		if (c & IMX_OCOTP_BM_CTRL_ERROR)
+		if (c & bm_ctrl_error)
 			return -EPERM;
 		return -ETIMEDOUT;
 	}
@@ -105,15 +126,18 @@ static int imx_ocotp_wait_for_busy(void __iomem *base, u32 flags)
 	return 0;
 }
 
-static void imx_ocotp_clr_err_if_set(void __iomem *base)
+static void imx_ocotp_clr_err_if_set(struct ocotp_priv *priv)
 {
-	u32 c;
+	u32 c, bm_ctrl_error;
+	void __iomem *base = priv->base;
+
+	bm_ctrl_error = priv->params->ctrl.bm_error;
 
 	c = readl(base + IMX_OCOTP_ADDR_CTRL);
-	if (!(c & IMX_OCOTP_BM_CTRL_ERROR))
+	if (!(c & bm_ctrl_error))
 		return;
 
-	writel(IMX_OCOTP_BM_CTRL_ERROR, base + IMX_OCOTP_ADDR_CTRL_CLR);
+	writel(bm_ctrl_error, base + IMX_OCOTP_ADDR_CTRL_CLR);
 }
 
 static int imx_ocotp_read(void *context, unsigned int offset,
@@ -140,7 +164,7 @@ static int imx_ocotp_read(void *context, unsigned int offset,
 		return ret;
 	}
 
-	ret = imx_ocotp_wait_for_busy(priv->base, 0);
+	ret = imx_ocotp_wait_for_busy(priv, 0);
 	if (ret < 0) {
 		dev_err(priv->dev, "timeout during read setup\n");
 		goto read_end;
@@ -157,7 +181,7 @@ static int imx_ocotp_read(void *context, unsigned int offset,
 		 * issued
 		 */
 		if (*(buf - 1) == IMX_OCOTP_READ_LOCKED_VAL)
-			imx_ocotp_clr_err_if_set(priv->base);
+			imx_ocotp_clr_err_if_set(priv);
 	}
 	ret = 0;
 
@@ -274,7 +298,7 @@ static int imx_ocotp_write(void *context, unsigned int offset, void *val,
 	 * write or reload must be completed before a write access can be
 	 * requested.
 	 */
-	ret = imx_ocotp_wait_for_busy(priv->base, 0);
+	ret = imx_ocotp_wait_for_busy(priv, 0);
 	if (ret < 0) {
 		dev_err(priv->dev, "timeout during timing setup\n");
 		goto write_end;
@@ -306,8 +330,8 @@ static int imx_ocotp_write(void *context, unsigned int offset, void *val,
 	}
 
 	ctrl = readl(priv->base + IMX_OCOTP_ADDR_CTRL);
-	ctrl &= ~IMX_OCOTP_BM_CTRL_ADDR;
-	ctrl |= waddr & IMX_OCOTP_BM_CTRL_ADDR;
+	ctrl &= ~priv->params->ctrl.bm_addr;
+	ctrl |= waddr & priv->params->ctrl.bm_addr;
 	ctrl |= IMX_OCOTP_WR_UNLOCK;
 
 	writel(ctrl, priv->base + IMX_OCOTP_ADDR_CTRL);
@@ -374,11 +398,11 @@ static int imx_ocotp_write(void *context, unsigned int offset, void *val,
 	 * be set. It must be cleared by software before any new write access
 	 * can be issued.
 	 */
-	ret = imx_ocotp_wait_for_busy(priv->base, 0);
+	ret = imx_ocotp_wait_for_busy(priv, 0);
 	if (ret < 0) {
 		if (ret == -EPERM) {
 			dev_err(priv->dev, "failed write to locked region");
-			imx_ocotp_clr_err_if_set(priv->base);
+			imx_ocotp_clr_err_if_set(priv);
 		} else {
 			dev_err(priv->dev, "timeout during data write\n");
 		}
@@ -394,10 +418,10 @@ static int imx_ocotp_write(void *context, unsigned int offset, void *val,
 	udelay(2);
 
 	/* reload all shadow registers */
-	writel(IMX_OCOTP_BM_CTRL_REL_SHADOWS,
+	writel(priv->params->ctrl.bm_rel_shadows,
 	       priv->base + IMX_OCOTP_ADDR_CTRL_SET);
-	ret = imx_ocotp_wait_for_busy(priv->base,
-				      IMX_OCOTP_BM_CTRL_REL_SHADOWS);
+	ret = imx_ocotp_wait_for_busy(priv,
+				      priv->params->ctrl.bm_rel_shadows);
 	if (ret < 0) {
 		dev_err(priv->dev, "timeout during shadow register reload\n");
 		goto write_end;
@@ -424,65 +448,76 @@ static const struct ocotp_params imx6q_params = {
 	.nregs = 128,
 	.bank_address_words = 0,
 	.set_timing = imx_ocotp_set_imx6_timing,
+	.ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
 };
 
 static const struct ocotp_params imx6sl_params = {
 	.nregs = 64,
 	.bank_address_words = 0,
 	.set_timing = imx_ocotp_set_imx6_timing,
+	.ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
 };
 
 static const struct ocotp_params imx6sll_params = {
 	.nregs = 128,
 	.bank_address_words = 0,
 	.set_timing = imx_ocotp_set_imx6_timing,
+	.ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
 };
 
 static const struct ocotp_params imx6sx_params = {
 	.nregs = 128,
 	.bank_address_words = 0,
 	.set_timing = imx_ocotp_set_imx6_timing,
+	.ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
 };
 
 static const struct ocotp_params imx6ul_params = {
 	.nregs = 128,
 	.bank_address_words = 0,
 	.set_timing = imx_ocotp_set_imx6_timing,
+	.ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
 };
 
 static const struct ocotp_params imx6ull_params = {
 	.nregs = 64,
 	.bank_address_words = 0,
 	.set_timing = imx_ocotp_set_imx6_timing,
+	.ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
 };
 
 static const struct ocotp_params imx7d_params = {
 	.nregs = 64,
 	.bank_address_words = 4,
 	.set_timing = imx_ocotp_set_imx7_timing,
+	.ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
 };
 
 static const struct ocotp_params imx7ulp_params = {
 	.nregs = 256,
 	.bank_address_words = 0,
+	.ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
 };
 
 static const struct ocotp_params imx8mq_params = {
 	.nregs = 256,
 	.bank_address_words = 0,
 	.set_timing = imx_ocotp_set_imx6_timing,
+	.ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
 };
 
 static const struct ocotp_params imx8mm_params = {
 	.nregs = 256,
 	.bank_address_words = 0,
 	.set_timing = imx_ocotp_set_imx6_timing,
+	.ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
 };
 
 static const struct ocotp_params imx8mn_params = {
 	.nregs = 256,
 	.bank_address_words = 0,
 	.set_timing = imx_ocotp_set_imx6_timing,
+	.ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
 };
 
 static const struct of_device_id imx_ocotp_dt_ids[] = {
@@ -521,17 +556,17 @@ static int imx_ocotp_probe(struct platform_device *pdev)
 	if (IS_ERR(priv->clk))
 		return PTR_ERR(priv->clk);
 
-	clk_prepare_enable(priv->clk);
-	imx_ocotp_clr_err_if_set(priv->base);
-	clk_disable_unprepare(priv->clk);
-
 	priv->params = of_device_get_match_data(&pdev->dev);
 	imx_ocotp_nvmem_config.size = 4 * priv->params->nregs;
 	imx_ocotp_nvmem_config.dev = dev;
 	imx_ocotp_nvmem_config.priv = priv;
 	priv->config = &imx_ocotp_nvmem_config;
-	nvmem = devm_nvmem_register(dev, &imx_ocotp_nvmem_config);
 
+	clk_prepare_enable(priv->clk);
+	imx_ocotp_clr_err_if_set(priv);
+	clk_disable_unprepare(priv->clk);
+
+	nvmem = devm_nvmem_register(dev, &imx_ocotp_nvmem_config);
 
 	return PTR_ERR_OR_ZERO(nvmem);
 }

drivers/nvmem/qcom-spmi-sdam.c

+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2017 The Linux Foundation. All rights reserved.
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/nvmem-provider.h>
+#include <linux/regmap.h>
+
+#define SDAM_MEM_START			0x40
+#define REGISTER_MAP_ID			0x40
+#define REGISTER_MAP_VERSION		0x41
+#define SDAM_SIZE			0x44
+#define SDAM_PBS_TRIG_SET		0xE5
+#define SDAM_PBS_TRIG_CLR		0xE6
+
+struct sdam_chip {
+	struct platform_device		*pdev;
+	struct regmap			*regmap;
+	struct nvmem_config		sdam_config;
+	unsigned int			base;
+	unsigned int			size;
+};
+
+/* read only register offsets */
+static const u8 sdam_ro_map[] = {
+	REGISTER_MAP_ID,
+	REGISTER_MAP_VERSION,
+	SDAM_SIZE
+};
+
+static bool sdam_is_valid(struct sdam_chip *sdam, unsigned int offset,
+				size_t len)
+{
+	unsigned int sdam_mem_end = SDAM_MEM_START + sdam->size - 1;
+
+	if (!len)
+		return false;
+
+	if (offset >= SDAM_MEM_START && offset <= sdam_mem_end
+				&& (offset + len - 1) <= sdam_mem_end)
+		return true;
+	else if ((offset == SDAM_PBS_TRIG_SET || offset == SDAM_PBS_TRIG_CLR)
+				&& (len == 1))
+		return true;
+
+	return false;
+}
+
+static bool sdam_is_ro(unsigned int offset, size_t len)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(sdam_ro_map); i++)
+		if (offset <= sdam_ro_map[i] && (offset + len) > sdam_ro_map[i])
+			return true;
+
+	return false;
+}
+
+static int sdam_read(void *priv, unsigned int offset, void *val,
+				size_t bytes)
+{
+	struct sdam_chip *sdam = priv;
+	struct device *dev = &sdam->pdev->dev;
+	int rc;
+
+	if (!sdam_is_valid(sdam, offset, bytes)) {
+		dev_err(dev, "Invalid SDAM offset %#x len=%zd\n",
+			offset, bytes);
+		return -EINVAL;
+	}
+
+	rc = regmap_bulk_read(sdam->regmap, sdam->base + offset, val, bytes);
+	if (rc < 0)
+		dev_err(dev, "Failed to read SDAM offset %#x len=%zd, rc=%d\n",
+						offset, bytes, rc);
+
+	return rc;
+}
+
+static int sdam_write(void *priv, unsigned int offset, void *val,
+				size_t bytes)
+{
+	struct sdam_chip *sdam = priv;
+	struct device *dev = &sdam->pdev->dev;
+	int rc;
+
+	if (!sdam_is_valid(sdam, offset, bytes)) {
+		dev_err(dev, "Invalid SDAM offset %#x len=%zd\n",
+			offset, bytes);
+		return -EINVAL;
+	}
+
+	if (sdam_is_ro(offset, bytes)) {
+		dev_err(dev, "Invalid write offset %#x len=%zd\n",
+			offset, bytes);
+		return -EINVAL;
+	}
+
+	rc = regmap_bulk_write(sdam->regmap, sdam->base + offset, val, bytes);
+	if (rc < 0)
+		dev_err(dev, "Failed to write SDAM offset %#x len=%zd, rc=%d\n",
+						offset, bytes, rc);
+
+	return rc;
+}
+
+static int sdam_probe(struct platform_device *pdev)
+{
+	struct sdam_chip *sdam;
+	struct nvmem_device *nvmem;
+	unsigned int val;
+	int rc;
+
+	sdam = devm_kzalloc(&pdev->dev, sizeof(*sdam), GFP_KERNEL);
+	if (!sdam)
+		return -ENOMEM;
+
+	sdam->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+	if (!sdam->regmap) {
+		dev_err(&pdev->dev, "Failed to get regmap handle\n");
+		return -ENXIO;
+	}
+
+	rc = of_property_read_u32(pdev->dev.of_node, "reg", &sdam->base);
+	if (rc < 0) {
+		dev_err(&pdev->dev, "Failed to get SDAM base, rc=%d\n", rc);
+		return -EINVAL;
+	}
+
+	rc = regmap_read(sdam->regmap, sdam->base + SDAM_SIZE, &val);
+	if (rc < 0) {
+		dev_err(&pdev->dev, "Failed to read SDAM_SIZE rc=%d\n", rc);
+		return -EINVAL;
+	}
+	sdam->size = val * 32;
+
+	sdam->sdam_config.dev = &pdev->dev;
+	sdam->sdam_config.name = "spmi_sdam";
+	sdam->sdam_config.id = pdev->id;
+	sdam->sdam_config.owner = THIS_MODULE,
+	sdam->sdam_config.stride = 1;
+	sdam->sdam_config.word_size = 1;
+	sdam->sdam_config.reg_read = sdam_read;
+	sdam->sdam_config.reg_write = sdam_write;
+	sdam->sdam_config.priv = sdam;
+
+	nvmem = devm_nvmem_register(&pdev->dev, &sdam->sdam_config);
+	if (IS_ERR(nvmem)) {
+		dev_err(&pdev->dev,
+			"Failed to register SDAM nvmem device rc=%ld\n",
+			PTR_ERR(nvmem));
+		return -ENXIO;
+	}
+	dev_dbg(&pdev->dev,
+		"SDAM base=%#x size=%u registered successfully\n",
+		sdam->base, sdam->size);
+
+	return 0;
+}
+
+static const struct of_device_id sdam_match_table[] = {
+	{ .compatible = "qcom,spmi-sdam" },
+	{},
+};
+
+static struct platform_driver sdam_driver = {
+	.driver = {
+		.name = "qcom,spmi-sdam",
+		.of_match_table = sdam_match_table,
+	},
+	.probe		= sdam_probe,
+};
+
+static int __init sdam_init(void)
+{
+	return platform_driver_register(&sdam_driver);
+}
+subsys_initcall(sdam_init);
+
+static void __exit sdam_exit(void)
+{
+	return platform_driver_unregister(&sdam_driver);
+}
+module_exit(sdam_exit);
+
+MODULE_DESCRIPTION("QCOM SPMI SDAM driver");
+MODULE_LICENSE("GPL v2");

drivers/siox/siox.h

-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2015-2017 Pengutronix, Uwe Kleine-König <kernel@pengutronix.de>
  */

drivers/slimbus/qcom-ctrl.c

@@ -641,6 +641,8 @@ static int qcom_slim_remove(struct platform_device *pdev)
 
 	pm_runtime_disable(&pdev->dev);
 	slim_unregister_controller(&ctrl->ctrl);
+	clk_disable_unprepare(ctrl->rclk);
+	clk_disable_unprepare(ctrl->hclk);
 	destroy_workqueue(ctrl->rxwq);
 	return 0;
 }

drivers/slimbus/qcom-ngd-ctrl.c

@@ -666,10 +666,12 @@ static int qcom_slim_ngd_init_rx_msgq(struct qcom_slim_ngd_ctrl *ctrl)
 	struct device *dev = ctrl->dev;
 	int ret, size;
 
-	ctrl->dma_rx_channel = dma_request_slave_channel(dev, "rx");
-	if (!ctrl->dma_rx_channel) {
-		dev_err(dev, "Failed to request dma channels");
-		return -EINVAL;
+	ctrl->dma_rx_channel = dma_request_chan(dev, "rx");
+	if (IS_ERR(ctrl->dma_rx_channel)) {
+		dev_err(dev, "Failed to request RX dma channel");
+		ret = PTR_ERR(ctrl->dma_rx_channel);
+		ctrl->dma_rx_channel = NULL;
+		return ret;
 	}
 
 	size = QCOM_SLIM_NGD_DESC_NUM * SLIM_MSGQ_BUF_LEN;
@@ -703,10 +705,12 @@ static int qcom_slim_ngd_init_tx_msgq(struct qcom_slim_ngd_ctrl *ctrl)
 	int ret = 0;
 	int size;
 
-	ctrl->dma_tx_channel = dma_request_slave_channel(dev, "tx");
-	if (!ctrl->dma_tx_channel) {
-		dev_err(dev, "Failed to request dma channels");
-		return -EINVAL;
+	ctrl->dma_tx_channel = dma_request_chan(dev, "tx");
+	if (IS_ERR(ctrl->dma_tx_channel)) {
+		dev_err(dev, "Failed to request TX dma channel");
+		ret = PTR_ERR(ctrl->dma_tx_channel);
+		ctrl->dma_tx_channel = NULL;
+		return ret;
 	}
 
 	size = ((QCOM_SLIM_NGD_DESC_NUM + 1) * SLIM_MSGQ_BUF_LEN);

drivers/slimbus/slimbus.h

-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 2011-2017, The Linux Foundation
  */

drivers/soundwire/Kconfig

@@ -31,4 +31,13 @@ config SOUNDWIRE_INTEL
 	  enable this config option to get the SoundWire support for that
 	  device.
 
+config SOUNDWIRE_QCOM
+	tristate "Qualcomm SoundWire Master driver"
+	depends on SLIMBUS
+	depends on SND_SOC
+	help
+	  SoundWire Qualcomm Master driver.
+	  If you have an Qualcomm platform which has a SoundWire Master then
+	  enable this config option to get the SoundWire support for that
+	  device
 endif

drivers/soundwire/Makefile

@@ -21,3 +21,7 @@ obj-$(CONFIG_SOUNDWIRE_INTEL) += soundwire-intel.o
 
 soundwire-intel-init-objs := intel_init.o
 obj-$(CONFIG_SOUNDWIRE_INTEL) += soundwire-intel-init.o
+
+#Qualcomm driver
+soundwire-qcom-objs :=	qcom.o
+obj-$(CONFIG_SOUNDWIRE_QCOM) += soundwire-qcom.o

drivers/soundwire/bus.c

@@ -456,9 +456,11 @@ static int sdw_get_device_num(struct sdw_slave *slave)
 static int sdw_assign_device_num(struct sdw_slave *slave)
 {
 	int ret, dev_num;
+	bool new_device = false;
 
 	/* check first if device number is assigned, if so reuse that */
 	if (!slave->dev_num) {
+		if (!slave->dev_num_sticky) {
 			mutex_lock(&slave->bus->bus_lock);
 			dev_num = sdw_get_device_num(slave);
 			mutex_unlock(&slave->bus->bus_lock);
@@ -467,15 +469,22 @@ static int sdw_assign_device_num(struct sdw_slave *slave)
 					dev_num);
 				return dev_num;
 			}
+			slave->dev_num = dev_num;
+			slave->dev_num_sticky = dev_num;
+			new_device = true;
 		} else {
+			slave->dev_num = slave->dev_num_sticky;
+		}
+	}
+
+	if (!new_device)
 		dev_info(slave->bus->dev,
-			 "Slave already registered dev_num:%d\n",
+			 "Slave already registered, reusing dev_num:%d\n",
 			 slave->dev_num);
 
 	/* Clear the slave->dev_num to transfer message on device 0 */
 	dev_num = slave->dev_num;
 	slave->dev_num = 0;
-	}
 
 	ret = sdw_write(slave, SDW_SCP_DEVNUMBER, dev_num);
 	if (ret < 0) {
@@ -485,7 +494,7 @@ static int sdw_assign_device_num(struct sdw_slave *slave)
 	}
 
 	/* After xfer of msg, restore dev_num */
-	slave->dev_num = dev_num;
+	slave->dev_num = slave->dev_num_sticky;
 
 	return 0;
 }
@@ -979,6 +988,24 @@ int sdw_handle_slave_status(struct sdw_bus *bus,
 	struct sdw_slave *slave;
 	int i, ret = 0;
 
+	/* first check if any Slaves fell off the bus */
+	for (i = 1; i <= SDW_MAX_DEVICES; i++) {
+		mutex_lock(&bus->bus_lock);
+		if (test_bit(i, bus->assigned) == false) {
+			mutex_unlock(&bus->bus_lock);
+			continue;
+		}
+		mutex_unlock(&bus->bus_lock);
+
+		slave = sdw_get_slave(bus, i);
+		if (!slave)
+			continue;
+
+		if (status[i] == SDW_SLAVE_UNATTACHED &&
+		    slave->status != SDW_SLAVE_UNATTACHED)
+			sdw_modify_slave_status(slave, SDW_SLAVE_UNATTACHED);
+	}
+
 	if (status[0] == SDW_SLAVE_ATTACHED) {
 		dev_dbg(bus->dev, "Slave attached, programming device number\n");
 		ret = sdw_program_device_num(bus);

drivers/soundwire/cadence_master.c

@@ -74,6 +74,7 @@ MODULE_PARM_DESC(cdns_mcp_int_mask, "Cadence MCP IntMask");
 #define CDNS_MCP_INTMASK			0x48
 
 #define CDNS_MCP_INT_IRQ			BIT(31)
+#define CDNS_MCP_INT_RESERVED1			GENMASK(30, 17)
 #define CDNS_MCP_INT_WAKEUP			BIT(16)
 #define CDNS_MCP_INT_SLAVE_RSVD			BIT(15)
 #define CDNS_MCP_INT_SLAVE_ALERT		BIT(14)
@@ -85,10 +86,12 @@ MODULE_PARM_DESC(cdns_mcp_int_mask, "Cadence MCP IntMask");
 #define CDNS_MCP_INT_DATA_CLASH			BIT(9)
 #define CDNS_MCP_INT_PARITY			BIT(8)
 #define CDNS_MCP_INT_CMD_ERR			BIT(7)
+#define CDNS_MCP_INT_RESERVED2			GENMASK(6, 4)
 #define CDNS_MCP_INT_RX_NE			BIT(3)
 #define CDNS_MCP_INT_RX_WL			BIT(2)
 #define CDNS_MCP_INT_TXE			BIT(1)
 #define CDNS_MCP_INT_TXF			BIT(0)
+#define CDNS_MCP_INT_RESERVED (CDNS_MCP_INT_RESERVED1 | CDNS_MCP_INT_RESERVED2)
 
 #define CDNS_MCP_INTSET				0x4C
 
@@ -444,7 +447,8 @@ _cdns_xfer_msg(struct sdw_cdns *cdns, struct sdw_msg *msg, int cmd,
 	time = wait_for_completion_timeout(&cdns->tx_complete,
 					   msecs_to_jiffies(CDNS_TX_TIMEOUT));
 	if (!time) {
-		dev_err(cdns->dev, "IO transfer timed out\n");
+		dev_err(cdns->dev, "IO transfer timed out, cmd %d device %d addr %x len %d\n",
+			cmd, msg->dev_num, msg->addr, msg->len);
 		msg->len = 0;
 		return SDW_CMD_TIMEOUT;
 	}
@@ -672,13 +676,36 @@ static int cdns_update_slave_status(struct sdw_cdns *cdns,
 
 		/* first check if Slave reported multiple status */
 		if (set_status > 1) {
+			u32 val;
+
 			dev_warn_ratelimited(cdns->dev,
-					     "Slave reported multiple Status: %d\n",
-					     mask);
-			/*
-			 * TODO: we need to reread the status here by
-			 * issuing a PING cmd
-			 */
+					     "Slave %d reported multiple Status: %d\n",
+					     i, mask);
+
+			/* check latest status extracted from PING commands */
+			val = cdns_readl(cdns, CDNS_MCP_SLAVE_STAT);
+			val >>= (i * 2);
+
+			switch (val & 0x3) {
+			case 0:
+				status[i] = SDW_SLAVE_UNATTACHED;
+				break;
+			case 1:
+				status[i] = SDW_SLAVE_ATTACHED;
+				break;
+			case 2:
+				status[i] = SDW_SLAVE_ALERT;
+				break;
+			case 3:
+			default:
+				status[i] = SDW_SLAVE_RESERVED;
+				break;
+			}
+
+			dev_warn_ratelimited(cdns->dev,
+					     "Slave %d status updated to %d\n",
+					     i, status[i]);
+
 		}
 	}
 
@@ -705,6 +732,10 @@ irqreturn_t sdw_cdns_irq(int irq, void *dev_id)
 
 	int_status = cdns_readl(cdns, CDNS_MCP_INTSTAT);
 
+	/* check for reserved values read as zero */
+	if (int_status & CDNS_MCP_INT_RESERVED)
+		return IRQ_NONE;
+
 	if (!(int_status & CDNS_MCP_INT_IRQ))
 		return IRQ_NONE;
 
@@ -812,8 +843,9 @@ int sdw_cdns_exit_reset(struct sdw_cdns *cdns)
 EXPORT_SYMBOL(sdw_cdns_exit_reset);
 
 /**
- * sdw_cdns_enable_interrupt() - Enable SDW interrupts and update config
+ * sdw_cdns_enable_interrupt() - Enable SDW interrupts
  * @cdns: Cadence instance
+ * @state: True if we are trying to enable interrupt.
  */
 int sdw_cdns_enable_interrupt(struct sdw_cdns *cdns, bool state)
 {
@@ -849,12 +881,21 @@ int sdw_cdns_enable_interrupt(struct sdw_cdns *cdns, bool state)
 		mask = interrupt_mask;
 
 update_masks:
+	/* clear slave interrupt status before enabling interrupt */
+	if (state) {
+		u32 slave_state;
+
+		slave_state = cdns_readl(cdns, CDNS_MCP_SLAVE_INTSTAT0);
+		cdns_writel(cdns, CDNS_MCP_SLAVE_INTSTAT0, slave_state);
+		slave_state = cdns_readl(cdns, CDNS_MCP_SLAVE_INTSTAT1);
+		cdns_writel(cdns, CDNS_MCP_SLAVE_INTSTAT1, slave_state);
+	}
+
 	cdns_writel(cdns, CDNS_MCP_SLAVE_INTMASK0, slave_intmask0);
 	cdns_writel(cdns, CDNS_MCP_SLAVE_INTMASK1, slave_intmask1);
 	cdns_writel(cdns, CDNS_MCP_INTMASK, mask);
 
-	/* commit changes */
-	return cdns_update_config(cdns);
+	return 0;
 }
 EXPORT_SYMBOL(sdw_cdns_enable_interrupt);
 
@@ -948,8 +989,6 @@ int sdw_cdns_pdi_init(struct sdw_cdns *cdns,
 	ret = cdns_allocate_pdi(cdns, &stream->out,
 				stream->num_out, offset);
 
-	offset += stream->num_out;
-
 	if (ret)
 		return ret;
 
@@ -1224,8 +1263,10 @@ EXPORT_SYMBOL(cdns_set_sdw_stream);
  * cdns_find_pdi() - Find a free PDI
  *
  * @cdns: Cadence instance
+ * @offset: Starting offset
  * @num: Number of PDIs
  * @pdi: PDI instances
+ * @dai_id: DAI id
  *
  * Find a PDI for a given PDI array. The PDI num and dai_id are
  * expected to match, return NULL otherwise.
@@ -1277,6 +1318,7 @@ EXPORT_SYMBOL(sdw_cdns_config_stream);
  * @stream: Stream to be allocated
  * @ch: Channel count
  * @dir: Data direction
+ * @dai_id: DAI id
  */
 struct sdw_cdns_pdi *sdw_cdns_alloc_pdi(struct sdw_cdns *cdns,
 					struct sdw_cdns_streams *stream,

drivers/soundwire/intel.c

@@ -880,6 +880,9 @@ static int sdw_master_read_intel_prop(struct sdw_bus *bus)
 				 "intel-sdw-ip-clock",
 				 &prop->mclk_freq);
 
+	/* the values reported by BIOS are the 2x clock, not the bus clock */
+	prop->mclk_freq /= 2;
+
 	fwnode_property_read_u32(link,
 				 "intel-quirk-mask",
 				 &quirk_mask);

drivers/soundwire/stream.c

@@ -1554,8 +1554,6 @@ int sdw_prepare_stream(struct sdw_stream_runtime *stream)
 	sdw_acquire_bus_lock(stream);
 
 	ret = _sdw_prepare_stream(stream);
-	if (ret < 0)
-		pr_err("Prepare for stream:%s failed: %d\n", stream->name, ret);
 
 	sdw_release_bus_lock(stream);
 	return ret;
@@ -1622,8 +1620,6 @@ int sdw_enable_stream(struct sdw_stream_runtime *stream)
 	sdw_acquire_bus_lock(stream);
 
 	ret = _sdw_enable_stream(stream);
-	if (ret < 0)
-		pr_err("Enable for stream:%s failed: %d\n", stream->name, ret);
 
 	sdw_release_bus_lock(stream);
 	return ret;
@@ -1698,8 +1694,6 @@ int sdw_disable_stream(struct sdw_stream_runtime *stream)
 	sdw_acquire_bus_lock(stream);
 
 	ret = _sdw_disable_stream(stream);
-	if (ret < 0)
-		pr_err("Disable for stream:%s failed: %d\n", stream->name, ret);
 
 	sdw_release_bus_lock(stream);
 	return ret;
@@ -1756,8 +1750,6 @@ int sdw_deprepare_stream(struct sdw_stream_runtime *stream)
 
 	sdw_acquire_bus_lock(stream);
 	ret = _sdw_deprepare_stream(stream);
-	if (ret < 0)
-		pr_err("De-prepare for stream:%d failed: %d\n", ret, ret);
 
 	sdw_release_bus_lock(stream);
 	return ret;

drivers/uio/uio_dmem_genirq.c

@@ -132,11 +132,13 @@ static int uio_dmem_genirq_irqcontrol(struct uio_info *dev_info, s32 irq_on)
 	if (irq_on) {
 		if (test_and_clear_bit(0, &priv->flags))
 			enable_irq(dev_info->irq);
+		spin_unlock_irqrestore(&priv->lock, flags);
 	} else {
-		if (!test_and_set_bit(0, &priv->flags))
+		if (!test_and_set_bit(0, &priv->flags)) {
+			spin_unlock_irqrestore(&priv->lock, flags);
 			disable_irq(dev_info->irq);
 		}
-	spin_unlock_irqrestore(&priv->lock, flags);
+	}
 
 	return 0;
 }

drivers/uio/uio_pdrv_genirq.c

@@ -156,6 +156,8 @@ static int uio_pdrv_genirq_probe(struct platform_device *pdev)
 		uioinfo->irq = ret;
 		if (ret == -ENXIO && pdev->dev.of_node)
 			uioinfo->irq = UIO_IRQ_NONE;
+		else if (ret == -EPROBE_DEFER)
+			return ret;
 		else if (ret < 0) {
 			dev_err(&pdev->dev, "failed to get IRQ\n");
 			return ret;

drivers/visorbus/visorchipset.c

@@ -1210,14 +1210,17 @@ static void setup_crash_devices_work_queue(struct work_struct *work)
 {
 	struct controlvm_message local_crash_bus_msg;
 	struct controlvm_message local_crash_dev_msg;
-	struct controlvm_message msg;
+	struct controlvm_message msg = {
+		.hdr.id = CONTROLVM_CHIPSET_INIT,
+		.cmd.init_chipset = {
+			.bus_count = 23,
+			.switch_count = 0,
+		},
+	};
 	u32 local_crash_msg_offset;
 	u16 local_crash_msg_count;
 
 	/* send init chipset msg */
-	msg.hdr.id = CONTROLVM_CHIPSET_INIT;
-	msg.cmd.init_chipset.bus_count = 23;
-	msg.cmd.init_chipset.switch_count = 0;
 	chipset_init(&msg);
 	/* get saved message count */
 	if (visorchannel_read(chipset_dev->controlvm_channel,

drivers/vme/bridges/vme_fake.c

@@ -414,7 +414,8 @@ static void fake_lm_check(struct fake_driver *bridge, unsigned long long addr,
 	}
 }
 
-static u8 fake_vmeread8(struct fake_driver *bridge, unsigned long long addr,
+static noinline_for_stack u8 fake_vmeread8(struct fake_driver *bridge,
+					   unsigned long long addr,
 					   u32 aspace, u32 cycle)
 {
 	u8 retval = 0xff;
@@ -446,7 +447,8 @@ static u8 fake_vmeread8(struct fake_driver *bridge, unsigned long long addr,
 	return retval;
 }
 
-static u16 fake_vmeread16(struct fake_driver *bridge, unsigned long long addr,
+static noinline_for_stack u16 fake_vmeread16(struct fake_driver *bridge,
+					     unsigned long long addr,
 					     u32 aspace, u32 cycle)
 {
 	u16 retval = 0xffff;
@@ -478,7 +480,8 @@ static u16 fake_vmeread16(struct fake_driver *bridge, unsigned long long addr,
 	return retval;
 }
 
-static u32 fake_vmeread32(struct fake_driver *bridge, unsigned long long addr,
+static noinline_for_stack u32 fake_vmeread32(struct fake_driver *bridge,
+					     unsigned long long addr,
 					     u32 aspace, u32 cycle)
 {
 	u32 retval = 0xffffffff;
@@ -609,8 +612,9 @@ static ssize_t fake_master_read(struct vme_master_resource *image, void *buf,
 	return retval;
 }
 
-static void fake_vmewrite8(struct fake_driver *bridge, u8 *buf,
-			   unsigned long long addr, u32 aspace, u32 cycle)
+static noinline_for_stack void fake_vmewrite8(struct fake_driver *bridge,
+					      u8 *buf, unsigned long long addr,
+					      u32 aspace, u32 cycle)
 {
 	int i;
 	unsigned long long start, end, offset;
@@ -639,8 +643,9 @@ static void fake_vmewrite8(struct fake_driver *bridge, u8 *buf,
 
 }
 
-static void fake_vmewrite16(struct fake_driver *bridge, u16 *buf,
-			    unsigned long long addr, u32 aspace, u32 cycle)
+static noinline_for_stack void fake_vmewrite16(struct fake_driver *bridge,
+					       u16 *buf, unsigned long long addr,
+					       u32 aspace, u32 cycle)
 {
 	int i;
 	unsigned long long start, end, offset;
@@ -669,8 +674,9 @@ static void fake_vmewrite16(struct fake_driver *bridge, u16 *buf,
 
 }
 
-static void fake_vmewrite32(struct fake_driver *bridge, u32 *buf,
-			    unsigned long long addr, u32 aspace, u32 cycle)
+static noinline_for_stack void fake_vmewrite32(struct fake_driver *bridge,
+					       u32 *buf, unsigned long long addr,
+					       u32 aspace, u32 cycle)
 {
 	int i;
 	unsigned long long start, end, offset;

include/linux/alcor_pci.h

@@ -17,6 +17,7 @@
 #define PCI_ID_ALCOR_MICRO			0x1AEA
 #define PCI_ID_AU6601				0x6601
 #define PCI_ID_AU6621				0x6621
+#define PCI_ID_AU6625				0x6625
 
 #define MHZ_TO_HZ(freq)				((freq) * 1000 * 1000)
 

include/linux/soundwire/sdw.h

@@ -546,7 +546,8 @@ struct sdw_slave_ops {
  * @debugfs: Slave debugfs
  * @node: node for bus list
  * @port_ready: Port ready completion flag for each Slave port
- * @dev_num: Device Number assigned by Bus
+ * @dev_num: Current Device Number, values can be 0 or dev_num_sticky
+ * @dev_num_sticky: one-time static Device Number assigned by Bus
  * @probed: boolean tracking driver state
  * @probe_complete: completion utility to control potential races
  * on startup between driver probe/initialization and SoundWire
@@ -575,6 +576,7 @@ struct sdw_slave {
 	struct list_head node;
 	struct completion *port_ready;
 	u16 dev_num;
+	u16 dev_num_sticky;
 	bool probed;
 	struct completion probe_complete;
 	struct completion enumeration_complete;