clk: mxs: replace imx28 clk_register_clkdev with clock DT lookup

It really becomes a maintenance issue that every time a device needs
to look up (clk_get) a clock we have to patch kernel clock file to call
clk_register_clkdev for that clock.

Since clock DT support which is meant to resolve clock lookup in device
tree is in place, the patch moves imx28 client devices' clock lookup
over to device tree, so that any new lookup to be added at later time
can just get done in DT instead of kernel.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

1 files changed, 33 insertions, 2 deletions

diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
index 96fe74e4935..03e0fef8e7a 100644
--- a/arch/arm/boot/dts/imx28.dtsi
+++ b/arch/arm/boot/dts/imx28.dtsi
@@ -65,6 +65,7 @@
 			dma-apbh@80004000 {
 				compatible = "fsl,imx28-dma-apbh";
 				reg = <0x80004000 0x2000>;
+				clocks = <&clks 25>;
 			};
 
 			perfmon@80006000 {
@@ -81,6 +82,7 @@
 				reg-names = "gpmi-nand", "bch";
 				interrupts = <88>, <41>;
 				interrupt-names = "gpmi-dma", "bch";
+				clocks = <&clks 50>;
 				fsl,gpmi-dma-channel = <4>;
 				status = "disabled";
 			};
@@ -90,6 +92,7 @@
 				#size-cells = <0>;
 				reg = <0x80010000 0x2000>;
 				interrupts = <96 82>;
+				clocks = <&clks 46>;
 				fsl,ssp-dma-channel = <0>;
 				status = "disabled";
 			};
@@ -99,6 +102,7 @@
 				#size-cells = <0>;
 				reg = <0x80012000 0x2000>;
 				interrupts = <97 83>;
+				clocks = <&clks 47>;
 				fsl,ssp-dma-channel = <1>;
 				status = "disabled";
 			};
@@ -108,6 +112,7 @@
 				#size-cells = <0>;
 				reg = <0x80014000 0x2000>;
 				interrupts = <98 84>;
+				clocks = <&clks 48>;
 				fsl,ssp-dma-channel = <2>;
 				status = "disabled";
 			};
@@ -117,6 +122,7 @@
 				#size-cells = <0>;
 				reg = <0x80016000 0x2000>;
 				interrupts = <99 85>;
+				clocks = <&clks 49>;
 				fsl,ssp-dma-channel = <3>;
 				status = "disabled";
 			};
@@ -606,6 +612,7 @@
 			dma-apbx@80024000 {
 				compatible = "fsl,imx28-dma-apbx";
 				reg = <0x80024000 0x2000>;
+				clocks = <&clks 26>;
 			};
 
 			dcp@80028000 {
@@ -634,6 +641,7 @@
 				compatible = "fsl,imx28-lcdif";
 				reg = <0x80030000 0x2000>;
 				interrupts = <38 86>;
+				clocks = <&clks 55>;
 				status = "disabled";
 			};
 
@@ -641,6 +649,8 @@
 				compatible = "fsl,imx28-flexcan", "fsl,p1010-flexcan";
 				reg = <0x80032000 0x2000>;
 				interrupts = <8>;
+				clocks = <&clks 58>, <&clks 58>;
+				clock-names = "ipg", "per";
 				status = "disabled";
 			};
 
@@ -648,6 +658,8 @@
 				compatible = "fsl,imx28-flexcan", "fsl,p1010-flexcan";
 				reg = <0x80034000 0x2000>;
 				interrupts = <9>;
+				clocks = <&clks 59>, <&clks 59>;
+				clock-names = "ipg", "per";
 				status = "disabled";
 			};
 
@@ -694,15 +706,17 @@
 			reg = <0x80040000 0x40000>;
 			ranges;
 
-			clkctl@80040000 {
+			clks: clkctrl@80040000 {
+				compatible = "fsl,imx28-clkctrl";
 				reg = <0x80040000 0x2000>;
-				status = "disabled";
+				#clock-cells = <1>;
 			};
 
 			saif0: saif@80042000 {
 				compatible = "fsl,imx28-saif";
 				reg = <0x80042000 0x2000>;
 				interrupts = <59 80>;
+				clocks = <&clks 53>;
 				fsl,saif-dma-channel = <4>;
 				status = "disabled";
 			};
@@ -716,6 +730,7 @@
 				compatible = "fsl,imx28-saif";
 				reg = <0x80046000 0x2000>;
 				interrupts = <58 81>;
+				clocks = <&clks 54>;
 				fsl,saif-dma-channel = <5>;
 				status = "disabled";
 			};
@@ -763,6 +778,7 @@
 			pwm: pwm@80064000 {
 				compatible = "fsl,imx28-pwm", "fsl,imx23-pwm";
 				reg = <0x80064000 0x2000>;
+				clocks = <&clks 44>;
 				#pwm-cells = <2>;
 				fsl,pwm-number = <8>;
 				status = "disabled";
@@ -777,6 +793,7 @@
 				compatible = "fsl,imx28-auart", "fsl,imx23-auart";
 				reg = <0x8006a000 0x2000>;
 				interrupts = <112 70 71>;
+				clocks = <&clks 45>;
 				status = "disabled";
 			};
 
@@ -784,6 +801,7 @@
 				compatible = "fsl,imx28-auart", "fsl,imx23-auart";
 				reg = <0x8006c000 0x2000>;
 				interrupts = <113 72 73>;
+				clocks = <&clks 45>;
 				status = "disabled";
 			};
 
@@ -791,6 +809,7 @@
 				compatible = "fsl,imx28-auart", "fsl,imx23-auart";
 				reg = <0x8006e000 0x2000>;
 				interrupts = <114 74 75>;
+				clocks = <&clks 45>;
 				status = "disabled";
 			};
 
@@ -798,6 +817,7 @@
 				compatible = "fsl,imx28-auart", "fsl,imx23-auart";
 				reg = <0x80070000 0x2000>;
 				interrupts = <115 76 77>;
+				clocks = <&clks 45>;
 				status = "disabled";
 			};
 
@@ -805,6 +825,7 @@
 				compatible = "fsl,imx28-auart", "fsl,imx23-auart";
 				reg = <0x80072000 0x2000>;
 				interrupts = <116 78 79>;
+				clocks = <&clks 45>;
 				status = "disabled";
 			};
 
@@ -812,18 +833,22 @@
 				compatible = "arm,pl011", "arm,primecell";
 				reg = <0x80074000 0x1000>;
 				interrupts = <47>;
+				clocks = <&clks 45>, <&clks 26>;
+				clock-names = "uart", "apb_pclk";
 				status = "disabled";
 			};
 
 			usbphy0: usbphy@8007c000 {
 				compatible = "fsl,imx28-usbphy", "fsl,imx23-usbphy";
 				reg = <0x8007c000 0x2000>;
+				clocks = <&clks 62>;
 				status = "disabled";
 			};
 
 			usbphy1: usbphy@8007e000 {
 				compatible = "fsl,imx28-usbphy", "fsl,imx23-usbphy";
 				reg = <0x8007e000 0x2000>;
+				clocks = <&clks 63>;
 				status = "disabled";
 			};
 		};
@@ -840,6 +865,7 @@
 			compatible = "fsl,imx28-usb", "fsl,imx27-usb";
 			reg = <0x80080000 0x10000>;
 			interrupts = <93>;
+			clocks = <&clks 60>;
 			fsl,usbphy = <&usbphy0>;
 			status = "disabled";
 		};
@@ -848,6 +874,7 @@
 			compatible = "fsl,imx28-usb", "fsl,imx27-usb";
 			reg = <0x80090000 0x10000>;
 			interrupts = <92>;
+			clocks = <&clks 61>;
 			fsl,usbphy = <&usbphy1>;
 			status = "disabled";
 		};
@@ -861,6 +888,8 @@
 			compatible = "fsl,imx28-fec";
 			reg = <0x800f0000 0x4000>;
 			interrupts = <101>;
+			clocks = <&clks 57>, <&clks 57>;
+			clock-names = "ipg", "ahb";
 			status = "disabled";
 		};
 
@@ -868,6 +897,8 @@
 			compatible = "fsl,imx28-fec";
 			reg = <0x800f4000 0x4000>;
 			interrupts = <102>;
+			clocks = <&clks 57>, <&clks 57>;
+			clock-names = "ipg", "ahb";
 			status = "disabled";
 		};