Merge branch 'clk-ralink' into clk-next

 - Proper clk driver for Mediatek MT7621 SoCs

* clk-ralink:
  MAINTAINERS: add MT7621 CLOCK maintainer
  staging: mt7621-dts: use valid vendor 'mediatek' instead of invalid 'mtk'
  staging: mt7621-dts: make use of new 'mt7621-clk'
  clk: ralink: add clock driver for mt7621 SoC
  dt: bindings: add mt7621-sysc device tree binding documentation
  dt-bindings: clock: add dt binding header for mt7621 clocks

Documentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mediatek,mt7621-sysc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MT7621 Clock Device Tree Bindings
+
+maintainers:
+  - Sergio Paracuellos <sergio.paracuellos@gmail.com>
+
+description: |
+  The MT7621 has a PLL controller from where the cpu clock is provided
+  as well as derived clocks for the bus and the peripherals. It also
+  can gate SoC device clocks.
+
+  Each clock is assigned an identifier and client nodes use this identifier
+  to specify the clock which they consume.
+
+  All these identifiers could be found in:
+  [1]: <include/dt-bindings/clock/mt7621-clk.h>.
+
+  The clocks are provided inside a system controller node.
+
+properties:
+  compatible:
+    items:
+      - const: mediatek,mt7621-sysc
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+  "#clock-cells":
+    description:
+      The first cell indicates the clock number, see [1] for available
+      clocks.
+    const: 1
+
+  ralink,memctl:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      phandle of syscon used to control memory registers
+
+  clock-output-names:
+    maxItems: 8
+
+required:
+  - compatible
+  - reg
+  - '#clock-cells'
+  - ralink,memctl
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/mt7621-clk.h>
+
+    sysc: sysc@0 {
+      compatible = "mediatek,mt7621-sysc", "syscon";
+      reg = <0x0 0x100>;
+      #clock-cells = <1>;
+      ralink,memctl = <&memc>;
+      clock-output-names = "xtal", "cpu", "bus",
+                           "50m", "125m", "150m",
+                           "250m", "270m";
+    };

MAINTAINERS

@@ -11295,6 +11295,12 @@ L:	linux-wireless@vger.kernel.org
 S:	Maintained
 F:	drivers/net/wireless/mediatek/mt7601u/
 
+MEDIATEK MT7621 CLOCK DRIVER
+M:	Sergio Paracuellos <sergio.paracuellos@gmail.com>
+S:	Maintained
+F:	Documentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml
+F:	drivers/clk/ralink/clk-mt7621.c
+
 MEDIATEK MT7621/28/88 I2C DRIVER
 M:	Stefan Roese <sr@denx.de>
 L:	linux-i2c@vger.kernel.org

arch/mips/ralink/mt7621.c

@@ -112,8 +112,8 @@ phys_addr_t mips_cpc_default_phys_base(void)
 
 void __init ralink_of_remap(void)
 {
-	rt_sysc_membase = plat_of_remap_node("mtk,mt7621-sysc");
-	rt_memc_membase = plat_of_remap_node("mtk,mt7621-memc");
+	rt_sysc_membase = plat_of_remap_node("mediatek,mt7621-sysc");
+	rt_memc_membase = plat_of_remap_node("mediatek,mt7621-memc");
 
 	if (!rt_sysc_membase || !rt_memc_membase)
 		panic("Failed to remap core resources");
@@ -181,7 +181,7 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
 
 	if (n0 == MT7621_CHIP_NAME0 && n1 == MT7621_CHIP_NAME1) {
 		name = "MT7621";
-		soc_info->compatible = "mtk,mt7621-soc";
+		soc_info->compatible = "mediatek,mt7621-soc";
 	} else {
 		panic("mt7621: unknown SoC, n0:%08x n1:%08x\n", n0, n1);
 	}

drivers/clk/Kconfig

@@ -390,6 +390,7 @@ source "drivers/clk/meson/Kconfig"
 source "drivers/clk/mstar/Kconfig"
 source "drivers/clk/mvebu/Kconfig"
 source "drivers/clk/qcom/Kconfig"
+source "drivers/clk/ralink/Kconfig"
 source "drivers/clk/renesas/Kconfig"
 source "drivers/clk/rockchip/Kconfig"
 source "drivers/clk/samsung/Kconfig"

drivers/clk/Makefile

@@ -100,6 +100,7 @@ obj-$(CONFIG_COMMON_CLK_NXP)		+= nxp/
 obj-$(CONFIG_MACH_PISTACHIO)		+= pistachio/
 obj-$(CONFIG_COMMON_CLK_PXA)		+= pxa/
 obj-$(CONFIG_COMMON_CLK_QCOM)		+= qcom/
+obj-y					+= ralink/
 obj-y					+= renesas/
 obj-$(CONFIG_ARCH_ROCKCHIP)		+= rockchip/
 obj-$(CONFIG_COMMON_CLK_SAMSUNG)	+= samsung/

drivers/clk/ralink/Kconfig

+# SPDX-License-Identifier: GPL-2.0-only
+#
+# MediaTek Mt7621 Clock Driver
+#
+config CLK_MT7621
+	bool "Clock driver for MediaTek MT7621"
+	depends on SOC_MT7621 || COMPILE_TEST
+	default SOC_MT7621
+	select MFD_SYSCON
+	help
+	  This driver supports MediaTek MT7621 basic clocks.

drivers/clk/ralink/Makefile

+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_CLK_MT7621) += clk-mt7621.o

drivers/staging/mt7621-dts/gbpc1.dts

@@ -100,17 +100,6 @@ partition@50000 {
 	};
 };
 
-&sysclock {
-			compatible = "fixed-clock";
-			/* This is normally 1/4 of cpuclock */
-			clock-frequency = <225000000>;
-};
-
-&cpuclock {
-			compatible = "fixed-clock";
-			clock-frequency = <900000000>;
-};
-
 &pcie {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pcie_pins>;

drivers/staging/mt7621-dts/mt7621.dtsi

 #include <dt-bindings/interrupt-controller/mips-gic.h>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/clock/mt7621-clk.h>
 
 / {
 	#address-cells = <1>;
@@ -27,27 +28,6 @@ aliases {
 		serial0 = &uartlite;
 	};
 
-	cpuclock: cpuclock@0 {
-		#clock-cells = <0>;
-		compatible = "fixed-clock";
-
-		/* FIXME: there should be way to detect this */
-		clock-frequency = <880000000>;
-	};
-
-	sysclock: sysclock@0 {
-		#clock-cells = <0>;
-		compatible = "fixed-clock";
-
-		/* This is normally 1/4 of cpuclock */
-		clock-frequency = <220000000>;
-	};
-
-	mmc_clock: mmc_clock@0 {
-		#clock-cells = <0>;
-		compatible = "fixed-clock";
-		clock-frequency = <48000000>;
-	};
 
 	mmc_fixed_3v3: fixedregulator@0 {
 		compatible = "regulator-fixed";
@@ -76,12 +56,17 @@ palmbus: palmbus@1E000000 {
 		#size-cells = <1>;
 
 		sysc: sysc@0 {
-			compatible = "mtk,mt7621-sysc";
+			compatible = "mediatek,mt7621-sysc", "syscon";
 			reg = <0x0 0x100>;
+			#clock-cells = <1>;
+			ralink,memctl = <&memc>;
+			clock-output-names = "xtal", "cpu", "bus",
+					     "50m", "125m", "150m",
+					     "250m", "270m";
 		};
 
 		wdt: wdt@100 {
-			compatible = "mtk,mt7621-wdt";
+			compatible = "mediatek,mt7621-wdt";
 			reg = <0x100 0x100>;
 		};
 
@@ -101,8 +86,8 @@ i2c: i2c@900 {
 			compatible = "mediatek,mt7621-i2c";
 			reg = <0x900 0x100>;
 
-			clocks = <&sysclock>;
-
+			clocks = <&sysc MT7621_CLK_I2C>;
+			clock-names = "i2c";
 			resets = <&rstctrl 16>;
 			reset-names = "i2c";
 
@@ -119,8 +104,8 @@ i2s: i2s@a00 {
 			compatible = "mediatek,mt7621-i2s";
 			reg = <0xa00 0x100>;
 
-			clocks = <&sysclock>;
-
+			clocks = <&sysc MT7621_CLK_I2S>;
+			clock-names = "i2s";
 			resets = <&rstctrl 17>;
 			reset-names = "i2s";
 
@@ -138,17 +123,17 @@ i2s: i2s@a00 {
 		};
 
 		memc: memc@5000 {
-			compatible = "mtk,mt7621-memc";
+			compatible = "mediatek,mt7621-memc", "syscon";
 			reg = <0x5000 0x1000>;
 		};
 
 		cpc: cpc@1fbf0000 {
-			     compatible = "mtk,mt7621-cpc";
+			     compatible = "mediatek,mt7621-cpc";
 			     reg = <0x1fbf0000 0x8000>;
 		};
 
 		mc: mc@1fbf8000 {
-			    compatible = "mtk,mt7621-mc";
+			    compatible = "mediatek,mt7621-mc";
 			    reg = <0x1fbf8000 0x8000>;
 		};
 
@@ -156,8 +141,8 @@ uartlite: uartlite@c00 {
 			compatible = "ns16550a";
 			reg = <0xc00 0x100>;
 
-			clocks = <&sysclock>;
-			clock-frequency = <50000000>;
+			clocks = <&sysc MT7621_CLK_UART1>;
+			clock-names = "uart1";
 
 			interrupt-parent = <&gic>;
 			interrupts = <GIC_SHARED 26 IRQ_TYPE_LEVEL_HIGH>;
@@ -173,7 +158,8 @@ spi0: spi@b00 {
 			compatible = "ralink,mt7621-spi";
 			reg = <0xb00 0x100>;
 
-			clocks = <&sysclock>;
+			clocks = <&sysc MT7621_CLK_SPI>;
+			clock-names = "spi";
 
 			resets = <&rstctrl 18>;
 			reset-names = "spi";
@@ -189,6 +175,8 @@ gdma: gdma@2800 {
 			compatible = "ralink,rt3883-gdma";
 			reg = <0x2800 0x800>;
 
+			clocks = <&sysc MT7621_CLK_GDMA>;
+			clock-names = "gdma";
 			resets = <&rstctrl 14>;
 			reset-names = "dma";
 
@@ -206,6 +194,8 @@ hsdma: hsdma@7000 {
 			compatible = "mediatek,mt7621-hsdma";
 			reg = <0x7000 0x1000>;
 
+			clocks = <&sysc MT7621_CLK_HSDMA>;
+			clock-names = "hsdma";
 			resets = <&rstctrl 5>;
 			reset-names = "hsdma";
 
@@ -311,11 +301,6 @@ rstctrl: rstctrl {
 		#reset-cells = <1>;
 	};
 
-	clkctrl: clkctrl {
-		compatible = "ralink,rt2880-clock";
-		#clock-cells = <1>;
-	};
-
 	sdhci: sdhci@1E130000 {
 		status = "disabled";
 
@@ -334,7 +319,8 @@ sdhci: sdhci@1E130000 {
 		pinctrl-0 = <&sdhci_pins>;
 		pinctrl-1 = <&sdhci_pins>;
 
-		clocks = <&mmc_clock &mmc_clock>;
+		clocks = <&sysc MT7621_CLK_SHXC>,
+			 <&sysc MT7621_CLK_50M>;
 		clock-names = "source", "hclk";
 
 		interrupt-parent = <&gic>;
@@ -349,7 +335,7 @@ xhci: xhci@1E1C0000 {
 		       0x1e1d0700 0x0100>;
 		reg-names = "mac", "ippc";
 
-		clocks = <&sysclock>;
+		clocks = <&sysc MT7621_CLK_XTAL>;
 		clock-names = "sys_ck";
 
 		interrupt-parent = <&gic>;
@@ -368,19 +354,22 @@ gic: interrupt-controller@1fbc0000 {
 		timer {
 			compatible = "mti,gic-timer";
 			interrupts = <GIC_LOCAL 1 IRQ_TYPE_NONE>;
-			clocks = <&cpuclock>;
+			clocks = <&sysc MT7621_CLK_CPU>;
 		};
 	};
 
 	nand: nand@1e003000 {
 		status = "disabled";
 
-		compatible = "mtk,mt7621-nand";
+		compatible = "mediatek,mt7621-nand";
 		bank-width = <2>;
 		reg = <0x1e003000 0x800
 			0x1e003800 0x800>;
 		#address-cells = <1>;
 		#size-cells = <1>;
+
+		clocks = <&sysc MT7621_CLK_NAND>;
+		clock-names = "nand";
 	};
 
 	ethsys: syscon@1e000000 {
@@ -394,8 +383,9 @@ ethernet: ethernet@1e100000 {
 		compatible = "mediatek,mt7621-eth";
 		reg = <0x1e100000 0x10000>;
 
-		clocks = <&sysclock>;
-		clock-names = "ethif";
+		clocks = <&sysc MT7621_CLK_FE>,
+			 <&sysc MT7621_CLK_ETH>;
+		clock-names = "fe", "ethif";
 
 		#address-cells = <1>;
 		#size-cells = <0>;
@@ -521,7 +511,9 @@ GIC_SHARED 24 IRQ_TYPE_LEVEL_HIGH
 
 		resets = <&rstctrl 24 &rstctrl 25 &rstctrl 26>;
 		reset-names = "pcie0", "pcie1", "pcie2";
-		clocks = <&clkctrl 24 &clkctrl 25 &clkctrl 26>;
+		clocks = <&sysc MT7621_CLK_PCIE0>,
+			 <&sysc MT7621_CLK_PCIE1>,
+			 <&sysc MT7621_CLK_PCIE2>;
 		clock-names = "pcie0", "pcie1", "pcie2";
 		phys = <&pcie0_phy 1>, <&pcie2_phy 0>;
 		phy-names = "pcie-phy0", "pcie-phy2";

include/dt-bindings/clock/mt7621-clk.h

+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Author: Sergio Paracuellos <sergio.paracuellos@gmail.com>
+ */
+
+#ifndef _DT_BINDINGS_CLK_MT7621_H
+#define _DT_BINDINGS_CLK_MT7621_H
+
+#define MT7621_CLK_XTAL		0
+#define MT7621_CLK_CPU		1
+#define MT7621_CLK_BUS		2
+#define MT7621_CLK_50M		3
+#define MT7621_CLK_125M		4
+#define MT7621_CLK_150M		5
+#define MT7621_CLK_250M		6
+#define MT7621_CLK_270M		7
+
+#define MT7621_CLK_HSDMA	8
+#define MT7621_CLK_FE		9
+#define MT7621_CLK_SP_DIVTX	10
+#define MT7621_CLK_TIMER	11
+#define MT7621_CLK_PCM		12
+#define MT7621_CLK_PIO		13
+#define MT7621_CLK_GDMA		14
+#define MT7621_CLK_NAND		15
+#define MT7621_CLK_I2C		16
+#define MT7621_CLK_I2S		17
+#define MT7621_CLK_SPI		18
+#define MT7621_CLK_UART1	19
+#define MT7621_CLK_UART2	20
+#define MT7621_CLK_UART3	21
+#define MT7621_CLK_ETH		22
+#define MT7621_CLK_PCIE0	23
+#define MT7621_CLK_PCIE1	24
+#define MT7621_CLK_PCIE2	25
+#define MT7621_CLK_CRYPTO	26
+#define MT7621_CLK_SHXC		27
+
+#define MT7621_CLK_MAX		28
+
+#endif /* _DT_BINDINGS_CLK_MT7621_H */