Merge series "DAI driver for new XCVR IP" from "Viorel Suman (OSS)" <viorel.suman@oss.nxp.com>

Viorel Suman <viorel.suman@nxp.com>:

From: Viorel Suman <viorel.suman@nxp.com>

DAI driver for new XCVR IP found in i.MX8MP.

Viorel Suman (2):
  ASoC: fsl_xcvr: Add XCVR ASoC CPU DAI driver
  ASoC: dt-bindings: fsl_xcvr: Add document for XCVR

Changes since v1:
 - improved 6- and 12-ch layout comment
 - used regmap polling function, improved
   clocks handling in runtime_resume
 - added FW size check in FW load function,
   improved IRQ handler, removed dummy IRQ handlers
 - fixed yaml file

Changes since v2:
 - used devm_reset_control_get_exclusive instead of of_reset_control_get
 - moved reset_control_assert into runtime_suspend

Changes since v3:
 - removed "firmware-name" DTS property from both documentation and
   source code by porting it into SoC specific 'compatible' data structure.

 .../devicetree/bindings/sound/fsl,xcvr.yaml   |  104 ++
 sound/soc/fsl/Kconfig                         |   10 +
 sound/soc/fsl/Makefile                        |    2 +
 sound/soc/fsl/fsl_xcvr.c                      | 1359 +++++++++++++++++
 sound/soc/fsl/fsl_xcvr.h                      |  266 ++++
 5 files changed, 1741 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/fsl,xcvr.yaml
 create mode 100644 sound/soc/fsl/fsl_xcvr.c
 create mode 100644 sound/soc/fsl/fsl_xcvr.h

--
2.26.2

Documentation/devicetree/bindings/sound/fsl,xcvr.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/fsl,xcvr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP Audio Transceiver (XCVR) Controller
+
+maintainers:
+  - Viorel Suman <viorel.suman@nxp.com>
+
+description: |
+  NXP XCVR (Audio Transceiver) is a on-chip functional module
+  that allows CPU to receive and transmit digital audio via
+  HDMI2.1 eARC, HDMI1.4 ARC and SPDIF.
+
+properties:
+  $nodename:
+    pattern: "^xcvr@.*"
+
+  compatible:
+    enum:
+      - fsl,imx8mp-xcvr
+
+  reg:
+    items:
+      - description: 20K RAM for code and data
+      - description: registers space
+      - description: RX FIFO address
+      - description: TX FIFO address
+
+  reg-names:
+    items:
+      - const: ram
+      - const: regs
+      - const: rxfifo
+      - const: txfifo
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Peripheral clock
+      - description: PHY clock
+      - description: SPBA clock
+      - description: PLL clock
+
+  clock-names:
+    items:
+      - const: ipg
+      - const: phy
+      - const: spba
+      - const: pll_ipg
+
+  dmas:
+    items:
+      - description: DMA controller phandle and request line for RX
+      - description: DMA controller phandle and request line for TX
+
+  dma-names:
+    items:
+      - const: rx
+      - const: tx
+
+  resets:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+  - clocks
+  - clock-names
+  - dmas
+  - dma-names
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/imx8mp-clock.h>
+    #include <dt-bindings/reset/imx8mp-reset.h>
+
+    xcvr: xcvr@30cc0000 {
+           compatible = "fsl,imx8mp-xcvr";
+           reg = <0x30cc0000 0x800>,
+                 <0x30cc0800 0x400>,
+                 <0x30cc0c00 0x080>,
+                 <0x30cc0e00 0x080>;
+           reg-names = "ram", "regs", "rxfifo", "txfifo";
+           interrupts = <0x0 128 IRQ_TYPE_LEVEL_HIGH>;
+           clocks = <&audiomix_clk IMX8MP_CLK_AUDIOMIX_EARC_IPG>,
+                    <&audiomix_clk IMX8MP_CLK_AUDIOMIX_EARC_PHY>,
+                    <&audiomix_clk IMX8MP_CLK_AUDIOMIX_SPBA2_ROOT>,
+                    <&audiomix_clk IMX8MP_CLK_AUDIOMIX_AUDPLL_ROOT>;
+           clock-names = "ipg", "phy", "spba", "pll_ipg";
+           dmas = <&sdma2 30 2 0>, <&sdma2 31 2 0>;
+           dma-names = "rx", "tx";
+           resets = <&audiomix_reset 0>;
+    };

sound/soc/fsl/Kconfig

@@ -95,6 +95,16 @@ config SND_SOC_FSL_EASRC
 	  destination sample rate. It is a new design module compare with the
 	  old ASRC.
 
+config SND_SOC_FSL_XCVR
+	tristate "NXP Audio Transceiver (XCVR) module support"
+	select REGMAP_MMIO
+	select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC != n
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	help
+	  Say Y if you want to add Audio Transceiver (XCVR) support for NXP
+	  iMX CPUs. XCVR is a digital module that supports HDMI2.1 eARC,
+	  HDMI1.4 ARC and SPDIF.
+
 config SND_SOC_FSL_UTILS
 	tristate
 

sound/soc/fsl/Makefile

@@ -25,6 +25,7 @@ snd-soc-fsl-utils-objs := fsl_utils.o
 snd-soc-fsl-dma-objs := fsl_dma.o
 snd-soc-fsl-mqs-objs := fsl_mqs.o
 snd-soc-fsl-easrc-objs := fsl_easrc.o
+snd-soc-fsl-xcvr-objs := fsl_xcvr.o
 
 obj-$(CONFIG_SND_SOC_FSL_AUDMIX) += snd-soc-fsl-audmix.o
 obj-$(CONFIG_SND_SOC_FSL_ASOC_CARD) += snd-soc-fsl-asoc-card.o
@@ -38,6 +39,7 @@ obj-$(CONFIG_SND_SOC_FSL_UTILS) += snd-soc-fsl-utils.o
 obj-$(CONFIG_SND_SOC_FSL_MQS) += snd-soc-fsl-mqs.o
 obj-$(CONFIG_SND_SOC_FSL_EASRC) += snd-soc-fsl-easrc.o
 obj-$(CONFIG_SND_SOC_POWERPC_DMA) += snd-soc-fsl-dma.o
+obj-$(CONFIG_SND_SOC_FSL_XCVR) += snd-soc-fsl-xcvr.o
 
 # MPC5200 Platform Support
 obj-$(CONFIG_SND_MPC52xx_DMA) += mpc5200_dma.o