ARM: i.MX27 clk: dts: Use clock defines in DTS files

Use clock definitions in i.MX27 DTS files.
Additional changes included in this patch (imx27.dtsi):
- Fix IPG clock for UART6.
- Use EMI_AHB_GATE clock for WEIM.
- Added GPIO_IPG_GATE clock for GPIO nodes. Currently this clock is
not used by the driver, but it can be added in the future.

Signed-off-by: Alexander Shiyan <[e-mail]>
Signed-off-by: Shawn Guo <[e-mail]>

arch/arm/boot/dts/imx27-pdk.dts

···
 		usbphy0: usbphy@0 {
 			compatible = "usb-nop-xceiv";
 			reg = <0>;
-			clocks = <&clks 0>;
+			clocks = <&clks IMX27_CLK_DUMMY>;
 			clock-names = "main_clk";
 		};
 	};

arch/arm/boot/dts/imx27-phytec-phycore-rdk.dts

···
 			compatible = "usb-nop-xceiv";
 			reg = <2>;
 			vcc-supply = <&reg_5v0>;
-			clocks = <&clks 0>;
+			clocks = <&clks IMX27_CLK_DUMMY>;
 			clock-names = "main_clk";
 		};
 	};

arch/arm/boot/dts/imx27-phytec-phycore-som.dtsi

···
 			compatible = "usb-nop-xceiv";
 			reg = <0>;
 			vcc-supply = <&sw3_reg>;
-			clocks = <&clks 0>;
+			clocks = <&clks IMX27_CLK_DUMMY>;
 			clock-names = "main_clk";
 		};
 	};

arch/arm/boot/dts/imx27.dtsi

···
 
 #include "skeleton.dtsi"
 #include "imx27-pinfunc.h"
+
+#include <dt-bindings/clock/imx27-clock.h>
+#include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/interrupt-controller/irq.h>
-#include <dt-bindings/gpio/gpio.h>
 
 / {
 	aliases {
···
 				399000 1450000
 			>;
 			clock-latency = <62500>;
-			clocks = <&clks 18>;
+			clocks = <&clks IMX27_CLK_CPU_DIV>;
 			voltage-tolerance = <5>;
 		};
 	};
···
 				compatible = "fsl,imx27-dma";
 				reg = <0x10001000 0x1000>;
 				interrupts = <32>;
-				clocks = <&clks 50>, <&clks 70>;
+				clocks = <&clks IMX27_CLK_DMA_IPG_GATE>,
+					 <&clks IMX27_CLK_DMA_AHB_GATE>;
 				clock-names = "ipg", "ahb";
 				#dma-cells = <1>;
 				#dma-channels = <16>;
···
 				compatible = "fsl,imx27-wdt", "fsl,imx21-wdt";
 				reg = <0x10002000 0x1000>;
 				interrupts = <27>;
-				clocks = <&clks 74>;
+				clocks = <&clks IMX27_CLK_WDOG_IPG_GATE>;
 			};
 
 			gpt1: timer@10003000 {
 				compatible = "fsl,imx27-gpt", "fsl,imx1-gpt";
 				reg = <0x10003000 0x1000>;
 				interrupts = <26>;
-				clocks = <&clks 46>, <&clks 61>;
+				clocks = <&clks IMX27_CLK_GPT1_IPG_GATE>,
+					 <&clks IMX27_CLK_PER1_GATE>;
 				clock-names = "ipg", "per";
 			};
 
···
 				compatible = "fsl,imx27-gpt", "fsl,imx1-gpt";
 				reg = <0x10004000 0x1000>;
 				interrupts = <25>;
-				clocks = <&clks 45>, <&clks 61>;
+				clocks = <&clks IMX27_CLK_GPT2_IPG_GATE>,
+					 <&clks IMX27_CLK_PER1_GATE>;
 				clock-names = "ipg", "per";
 			};
 
···
 				compatible = "fsl,imx27-gpt", "fsl,imx1-gpt";
 				reg = <0x10005000 0x1000>;
 				interrupts = <24>;
-				clocks = <&clks 44>, <&clks 61>;
+				clocks = <&clks IMX27_CLK_GPT3_IPG_GATE>,
+					 <&clks IMX27_CLK_PER1_GATE>;
 				clock-names = "ipg", "per";
 			};
 
···
 				compatible = "fsl,imx27-pwm";
 				reg = <0x10006000 0x1000>;
 				interrupts = <23>;
-				clocks = <&clks 34>, <&clks 61>;
+				clocks = <&clks IMX27_CLK_PWM_IPG_GATE>,
+					 <&clks IMX27_CLK_PER1_GATE>;
 				clock-names = "ipg", "per";
 			};
 
···
 				compatible = "fsl,imx27-kpp", "fsl,imx21-kpp";
 				reg = <0x10008000 0x1000>;
 				interrupts = <21>;
-				clocks = <&clks 37>;
+				clocks = <&clks IMX27_CLK_KPP_IPG_GATE>;
 				status = "disabled";
 			};
 
 			owire: owire@10009000 {
 				compatible = "fsl,imx27-owire", "fsl,imx21-owire";
 				reg = <0x10009000 0x1000>;
-				clocks = <&clks 35>;
+				clocks = <&clks IMX27_CLK_OWIRE_IPG_GATE>;
 				status = "disabled";
 			};
 
···
 				compatible = "fsl,imx27-uart", "fsl,imx21-uart";
 				reg = <0x1000a000 0x1000>;
 				interrupts = <20>;
-				clocks = <&clks 81>, <&clks 61>;
+				clocks = <&clks IMX27_CLK_UART1_IPG_GATE>,
+					 <&clks IMX27_CLK_PER1_GATE>;
 				clock-names = "ipg", "per";
 				status = "disabled";
 			};
···
 				compatible = "fsl,imx27-uart", "fsl,imx21-uart";
 				reg = <0x1000b000 0x1000>;
 				interrupts = <19>;
-				clocks = <&clks 80>, <&clks 61>;
+				clocks = <&clks IMX27_CLK_UART2_IPG_GATE>,
+					 <&clks IMX27_CLK_PER1_GATE>;
 				clock-names = "ipg", "per";
 				status = "disabled";
 			};
···
 				compatible = "fsl,imx27-uart", "fsl,imx21-uart";
 				reg = <0x1000c000 0x1000>;
 				interrupts = <18>;
-				clocks = <&clks 79>, <&clks 61>;
+				clocks = <&clks IMX27_CLK_UART3_IPG_GATE>,
+					 <&clks IMX27_CLK_PER1_GATE>;
 				clock-names = "ipg", "per";
 				status = "disabled";
 			};
···
 				compatible = "fsl,imx27-uart", "fsl,imx21-uart";
 				reg = <0x1000d000 0x1000>;
 				interrupts = <17>;
-				clocks = <&clks 78>, <&clks 61>;
+				clocks = <&clks IMX27_CLK_UART4_IPG_GATE>,
+					 <&clks IMX27_CLK_PER1_GATE>;
 				clock-names = "ipg", "per";
 				status = "disabled";
 			};
···
 				compatible = "fsl,imx27-cspi";
 				reg = <0x1000e000 0x1000>;
 				interrupts = <16>;
-				clocks = <&clks 53>, <&clks 60>;
+				clocks = <&clks IMX27_CLK_CSPI1_IPG_GATE>,
+					 <&clks IMX27_CLK_PER2_GATE>;
 				clock-names = "ipg", "per";
 				status = "disabled";
 			};
···
 				compatible = "fsl,imx27-cspi";
 				reg = <0x1000f000 0x1000>;
 				interrupts = <15>;
-				clocks = <&clks 52>, <&clks 60>;
+				clocks = <&clks IMX27_CLK_CSPI2_IPG_GATE>,
+					 <&clks IMX27_CLK_PER2_GATE>;
 				clock-names = "ipg", "per";
 				status = "disabled";
 			};
···
 				compatible = "fsl,imx27-ssi", "fsl,imx21-ssi";
 				reg = <0x10010000 0x1000>;
 				interrupts = <14>;
-				clocks = <&clks 26>;
+				clocks = <&clks IMX27_CLK_SSI1_IPG_GATE>;
 				dmas = <&dma 12>, <&dma 13>, <&dma 14>, <&dma 15>;
 				dma-names = "rx0", "tx0", "rx1", "tx1";
 				fsl,fifo-depth = <8>;
···
 				compatible = "fsl,imx27-ssi", "fsl,imx21-ssi";
 				reg = <0x10011000 0x1000>;
 				interrupts = <13>;
-				clocks = <&clks 25>;
+				clocks = <&clks IMX27_CLK_SSI2_IPG_GATE>;
 				dmas = <&dma 8>, <&dma 9>, <&dma 10>, <&dma 11>;
 				dma-names = "rx0", "tx0", "rx1", "tx1";
 				fsl,fifo-depth = <8>;
···
 				compatible = "fsl,imx27-i2c", "fsl,imx21-i2c";
 				reg = <0x10012000 0x1000>;
 				interrupts = <12>;
-				clocks = <&clks 40>;
+				clocks = <&clks IMX27_CLK_I2C1_IPG_GATE>;
 				status = "disabled";
 			};
 
···
 				compatible = "fsl,imx27-mmc", "fsl,imx21-mmc";
 				reg = <0x10013000 0x1000>;
 				interrupts = <11>;
-				clocks = <&clks 30>, <&clks 60>;
+				clocks = <&clks IMX27_CLK_SDHC1_IPG_GATE>,
+					 <&clks IMX27_CLK_PER2_GATE>;
 				clock-names = "ipg", "per";
 				dmas = <&dma 7>;
 				dma-names = "rx-tx";
···
 				compatible = "fsl,imx27-mmc", "fsl,imx21-mmc";
 				reg = <0x10014000 0x1000>;
 				interrupts = <10>;
-				clocks = <&clks 29>, <&clks 60>;
+				clocks = <&clks IMX27_CLK_SDHC2_IPG_GATE>,
+					 <&clks IMX27_CLK_PER2_GATE>;
 				clock-names = "ipg", "per";
 				dmas = <&dma 6>;
 				dma-names = "rx-tx";
···
 				gpio1: gpio@10015000 {
 					compatible = "fsl,imx27-gpio", "fsl,imx21-gpio";
 					reg = <0x10015000 0x100>;
+					clocks = <&clks IMX27_CLK_GPIO_IPG_GATE>;
 					interrupts = <8>;
 					gpio-controller;
 					#gpio-cells = <2>;
···
 				gpio2: gpio@10015100 {
 					compatible = "fsl,imx27-gpio", "fsl,imx21-gpio";
 					reg = <0x10015100 0x100>;
+					clocks = <&clks IMX27_CLK_GPIO_IPG_GATE>;
 					interrupts = <8>;
 					gpio-controller;
 					#gpio-cells = <2>;
···
 				gpio3: gpio@10015200 {
 					compatible = "fsl,imx27-gpio", "fsl,imx21-gpio";
 					reg = <0x10015200 0x100>;
+					clocks = <&clks IMX27_CLK_GPIO_IPG_GATE>;
 					interrupts = <8>;
 					gpio-controller;
 					#gpio-cells = <2>;
···
 				gpio4: gpio@10015300 {
 					compatible = "fsl,imx27-gpio", "fsl,imx21-gpio";
 					reg = <0x10015300 0x100>;
+					clocks = <&clks IMX27_CLK_GPIO_IPG_GATE>;
 					interrupts = <8>;
 					gpio-controller;
 					#gpio-cells = <2>;
···
 				gpio5: gpio@10015400 {
 					compatible = "fsl,imx27-gpio", "fsl,imx21-gpio";
 					reg = <0x10015400 0x100>;
+					clocks = <&clks IMX27_CLK_GPIO_IPG_GATE>;
 					interrupts = <8>;
 					gpio-controller;
 					#gpio-cells = <2>;
···
 				gpio6: gpio@10015500 {
 					compatible = "fsl,imx27-gpio", "fsl,imx21-gpio";
 					reg = <0x10015500 0x100>;
+					clocks = <&clks IMX27_CLK_GPIO_IPG_GATE>;
 					interrupts = <8>;
 					gpio-controller;
 					#gpio-cells = <2>;
···
 			audmux: audmux@10016000 {
 				compatible = "fsl,imx27-audmux", "fsl,imx21-audmux";
 				reg = <0x10016000 0x1000>;
-				clocks = <&clks 0>;
+				clocks = <&clks IMX27_CLK_DUMMY>;
 				clock-names = "audmux";
 				status = "disabled";
 			};
···
 				compatible = "fsl,imx27-cspi";
 				reg = <0x10017000 0x1000>;
 				interrupts = <6>;
-				clocks = <&clks 51>, <&clks 60>;
+				clocks = <&clks IMX27_CLK_CSPI3_IPG_GATE>,
+					 <&clks IMX27_CLK_PER2_GATE>;
 				clock-names = "ipg", "per";
 				status = "disabled";
 			};
···
 				compatible = "fsl,imx27-gpt", "fsl,imx1-gpt";
 				reg = <0x10019000 0x1000>;
 				interrupts = <4>;
-				clocks = <&clks 43>, <&clks 61>;
+				clocks = <&clks IMX27_CLK_GPT4_IPG_GATE>,
+					 <&clks IMX27_CLK_PER1_GATE>;
 				clock-names = "ipg", "per";
 			};
 
···
 				compatible = "fsl,imx27-gpt", "fsl,imx1-gpt";
 				reg = <0x1001a000 0x1000>;
 				interrupts = <3>;
-				clocks = <&clks 42>, <&clks 61>;
+				clocks = <&clks IMX27_CLK_GPT5_IPG_GATE>,
+					 <&clks IMX27_CLK_PER1_GATE>;
 				clock-names = "ipg", "per";
 			};
 
···
 				compatible = "fsl,imx27-uart", "fsl,imx21-uart";
 				reg = <0x1001b000 0x1000>;
 				interrupts = <49>;
-				clocks = <&clks 77>, <&clks 61>;
+				clocks = <&clks IMX27_CLK_UART5_IPG_GATE>,
+					 <&clks IMX27_CLK_PER1_GATE>;
 				clock-names = "ipg", "per";
 				status = "disabled";
 			};
···
 				compatible = "fsl,imx27-uart", "fsl,imx21-uart";
 				reg = <0x1001c000 0x1000>;
 				interrupts = <48>;
-				clocks = <&clks 78>, <&clks 61>;
+				clocks = <&clks IMX27_CLK_UART6_IPG_GATE>,
+					 <&clks IMX27_CLK_PER1_GATE>;
 				clock-names = "ipg", "per";
 				status = "disabled";
 			};
···
 				compatible = "fsl,imx27-i2c", "fsl,imx21-i2c";
 				reg = <0x1001d000 0x1000>;
 				interrupts = <1>;
-				clocks = <&clks 39>;
+				clocks = <&clks IMX27_CLK_I2C2_IPG_GATE>;
 				status = "disabled";
 			};
 
···
 				compatible = "fsl,imx27-mmc", "fsl,imx21-mmc";
 				reg = <0x1001e000 0x1000>;
 				interrupts = <9>;
-				clocks = <&clks 28>, <&clks 60>;
+				clocks = <&clks IMX27_CLK_SDHC3_IPG_GATE>,
+					 <&clks IMX27_CLK_PER2_GATE>;
 				clock-names = "ipg", "per";
 				dmas = <&dma 36>;
 				dma-names = "rx-tx";
···
 				compatible = "fsl,imx27-gpt", "fsl,imx1-gpt";
 				reg = <0x1001f000 0x1000>;
 				interrupts = <2>;
-				clocks = <&clks 41>, <&clks 61>;
+				clocks = <&clks IMX27_CLK_GPT6_IPG_GATE>,
+					 <&clks IMX27_CLK_PER1_GATE>;
 				clock-names = "ipg", "per";
 			};
 		};
···
 				compatible = "fsl,imx27-fb", "fsl,imx21-fb";
 				interrupts = <61>;
 				reg = <0x10021000 0x1000>;
-				clocks = <&clks 36>, <&clks 65>, <&clks 59>;
+				clocks = <&clks IMX27_CLK_LCDC_IPG_GATE>,
+					 <&clks IMX27_CLK_LCDC_AHB_GATE>,
+					 <&clks IMX27_CLK_PER3_GATE>;
 				clock-names = "ipg", "ahb", "per";
 				status = "disabled";
 			};
···
 				compatible = "fsl,imx27-vpu";
 				reg = <0x10023000 0x0200>;
 				interrupts = <53>;
-				clocks = <&clks 57>, <&clks 66>;
+				clocks = <&clks IMX27_CLK_VPU_BAUD_GATE>,
+					 <&clks IMX27_CLK_VPU_AHB_GATE>;
 				clock-names = "per", "ahb";
 				iram = <&iram>;
 			};
···
 				compatible = "fsl,imx27-usb";
 				reg = <0x10024000 0x200>;
 				interrupts = <56>;
-				clocks = <&clks 75>;
+				clocks = <&clks IMX27_CLK_USB_IPG_GATE>;
 				fsl,usbmisc = <&usbmisc 0>;
 				status = "disabled";
 			};
···
 				compatible = "fsl,imx27-usb";
 				reg = <0x10024200 0x200>;
 				interrupts = <54>;
-				clocks = <&clks 75>;
+				clocks = <&clks IMX27_CLK_USB_IPG_GATE>;
 				fsl,usbmisc = <&usbmisc 1>;
 				status = "disabled";
 			};
···
 				compatible = "fsl,imx27-usb";
 				reg = <0x10024400 0x200>;
 				interrupts = <55>;
-				clocks = <&clks 75>;
+				clocks = <&clks IMX27_CLK_USB_IPG_GATE>;
 				fsl,usbmisc = <&usbmisc 2>;
 				status = "disabled";
 			};
···
 				#index-cells = <1>;
 				compatible = "fsl,imx27-usbmisc";
 				reg = <0x10024600 0x200>;
-				clocks = <&clks 62>;
+				clocks = <&clks IMX27_CLK_USB_AHB_GATE>;
 			};
 
 			sahara2: sahara@10025000 {
 				compatible = "fsl,imx27-sahara";
 				reg = <0x10025000 0x1000>;
 				interrupts = <59>;
-				clocks = <&clks 32>, <&clks 64>;
+				clocks = <&clks IMX27_CLK_SAHARA_IPG_GATE>,
+					 <&clks IMX27_CLK_SAHARA_AHB_GATE>;
 				clock-names = "ipg", "ahb";
 			};
 
···
 				compatible = "fsl,imx27-iim";
 				reg = <0x10028000 0x1000>;
 				interrupts = <62>;
-				clocks = <&clks 38>;
+				clocks = <&clks IMX27_CLK_IIM_IPG_GATE>;
 			};
 
 			fec: ethernet@1002b000 {
 				compatible = "fsl,imx27-fec";
 				reg = <0x1002b000 0x4000>;
 				interrupts = <50>;
-				clocks = <&clks 48>, <&clks 67>;
+				clocks = <&clks IMX27_CLK_FEC_IPG_GATE>,
+					 <&clks IMX27_CLK_FEC_AHB_GATE>;
 				clock-names = "ipg", "ahb";
 				status = "disabled";
 			};
···
 			compatible = "fsl,imx27-nand";
 			reg = <0xd8000000 0x1000>;
 			interrupts = <29>;
-			clocks = <&clks 54>;
+			clocks = <&clks IMX27_CLK_NFC_BAUD_GATE>;
 			status = "disabled";
 		};
 
···
 			#size-cells = <1>;
 			compatible = "fsl,imx27-weim";
 			reg = <0xd8002000 0x1000>;
-			clocks = <&clks 0>;
+			clocks = <&clks IMX27_CLK_EMI_AHB_GATE>;
 			ranges = <
 				0 0 0xc0000000 0x08000000
 				1 0 0xc8000000 0x08000000