ARM: imx6q: replace clk_register_clkdev with clock DT lookup

It really becomes an 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 imx6q 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>

2 files changed, 64 insertions, 10 deletions

diff --git a/arch/arm/boot/dts/imx6q-sabrelite.dts b/arch/arm/boot/dts/imx6q-sabrelite.dts
index 72f30f3e6171..cfdbe539c43e 100644
--- a/arch/arm/boot/dts/imx6q-sabrelite.dts
+++ b/arch/arm/boot/dts/imx6q-sabrelite.dts
@@ -111,6 +111,7 @@
 				codec: sgtl5000@0a {
 					compatible = "fsl,sgtl5000";
 					reg = <0x0a>;
+					clocks = <&clks 169>;
 					VDDA-supply = <&reg_2p5v>;
 					VDDIO-supply = <&reg_3p3v>;
 				};
diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi
index fd57079f71a9..925da33420e2 100644
--- a/arch/arm/boot/dts/imx6q.dtsi
+++ b/arch/arm/boot/dts/imx6q.dtsi
@@ -97,18 +97,23 @@
 		dma-apbh@00110000 {
 			compatible = "fsl,imx6q-dma-apbh", "fsl,imx28-dma-apbh";
 			reg = <0x00110000 0x2000>;
+			clocks = <&clks 106>;
 		};
 
 		gpmi-nand@00112000 {
-		       compatible = "fsl,imx6q-gpmi-nand";
-		       #address-cells = <1>;
-		       #size-cells = <1>;
-		       reg = <0x00112000 0x2000>, <0x00114000 0x2000>;
-		       reg-names = "gpmi-nand", "bch";
-		       interrupts = <0 13 0x04>, <0 15 0x04>;
-		       interrupt-names = "gpmi-dma", "bch";
-		       fsl,gpmi-dma-channel = <0>;
-		       status = "disabled";
+			compatible = "fsl,imx6q-gpmi-nand";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			reg = <0x00112000 0x2000>, <0x00114000 0x2000>;
+			reg-names = "gpmi-nand", "bch";
+			interrupts = <0 13 0x04>, <0 15 0x04>;
+			interrupt-names = "gpmi-dma", "bch";
+			clocks = <&clks 152>, <&clks 153>, <&clks 151>,
+				 <&clks 150>, <&clks 149>;
+			clock-names = "gpmi_io", "gpmi_apb", "gpmi_bch",
+				      "gpmi_bch_apb", "per1_bch";
+			fsl,gpmi-dma-channel = <0>;
+			status = "disabled";
 		};
 
 		timer@00a00600 {
@@ -150,6 +155,8 @@
 					compatible = "fsl,imx6q-ecspi", "fsl,imx51-ecspi";
 					reg = <0x02008000 0x4000>;
 					interrupts = <0 31 0x04>;
+					clocks = <&clks 112>, <&clks 112>;
+					clock-names = "ipg", "per";
 					status = "disabled";
 				};
 
@@ -159,6 +166,8 @@
 					compatible = "fsl,imx6q-ecspi", "fsl,imx51-ecspi";
 					reg = <0x0200c000 0x4000>;
 					interrupts = <0 32 0x04>;
+					clocks = <&clks 113>, <&clks 113>;
+					clock-names = "ipg", "per";
 					status = "disabled";
 				};
 
@@ -168,6 +177,8 @@
 					compatible = "fsl,imx6q-ecspi", "fsl,imx51-ecspi";
 					reg = <0x02010000 0x4000>;
 					interrupts = <0 33 0x04>;
+					clocks = <&clks 114>, <&clks 114>;
+					clock-names = "ipg", "per";
 					status = "disabled";
 				};
 
@@ -177,6 +188,8 @@
 					compatible = "fsl,imx6q-ecspi", "fsl,imx51-ecspi";
 					reg = <0x02014000 0x4000>;
 					interrupts = <0 34 0x04>;
+					clocks = <&clks 115>, <&clks 115>;
+					clock-names = "ipg", "per";
 					status = "disabled";
 				};
 
@@ -186,6 +199,8 @@
 					compatible = "fsl,imx6q-ecspi", "fsl,imx51-ecspi";
 					reg = <0x02018000 0x4000>;
 					interrupts = <0 35 0x04>;
+					clocks = <&clks 116>, <&clks 116>;
+					clock-names = "ipg", "per";
 					status = "disabled";
 				};
 
@@ -193,6 +208,8 @@
 					compatible = "fsl,imx6q-uart", "fsl,imx21-uart";
 					reg = <0x02020000 0x4000>;
 					interrupts = <0 26 0x04>;
+					clocks = <&clks 160>, <&clks 161>;
+					clock-names = "ipg", "per";
 					status = "disabled";
 				};
 
@@ -205,6 +222,7 @@
 					compatible = "fsl,imx6q-ssi","fsl,imx21-ssi";
 					reg = <0x02028000 0x4000>;
 					interrupts = <0 46 0x04>;
+					clocks = <&clks 178>;
 					fsl,fifo-depth = <15>;
 					fsl,ssi-dma-events = <38 37>;
 					status = "disabled";
@@ -214,6 +232,7 @@
 					compatible = "fsl,imx6q-ssi","fsl,imx21-ssi";
 					reg = <0x0202c000 0x4000>;
 					interrupts = <0 47 0x04>;
+					clocks = <&clks 179>;
 					fsl,fifo-depth = <15>;
 					fsl,ssi-dma-events = <42 41>;
 					status = "disabled";
@@ -223,6 +242,7 @@
 					compatible = "fsl,imx6q-ssi","fsl,imx21-ssi";
 					reg = <0x02030000 0x4000>;
 					interrupts = <0 48 0x04>;
+					clocks = <&clks 180>;
 					fsl,fifo-depth = <15>;
 					fsl,ssi-dma-events = <46 45>;
 					status = "disabled";
@@ -362,6 +382,7 @@
 				compatible = "fsl,imx6q-wdt", "fsl,imx21-wdt";
 				reg = <0x020bc000 0x4000>;
 				interrupts = <0 80 0x04>;
+				clocks = <&clks 0>;
 				status = "disabled";
 			};
 
@@ -369,13 +390,15 @@
 				compatible = "fsl,imx6q-wdt", "fsl,imx21-wdt";
 				reg = <0x020c0000 0x4000>;
 				interrupts = <0 81 0x04>;
+				clocks = <&clks 0>;
 				status = "disabled";
 			};
 
-			ccm@020c4000 {
+			clks: ccm@020c4000 {
 				compatible = "fsl,imx6q-ccm";
 				reg = <0x020c4000 0x4000>;
 				interrupts = <0 87 0x04 0 88 0x04>;
+				#clock-cells = <1>;
 			};
 
 			anatop@020c8000 {
@@ -472,12 +495,14 @@
 				compatible = "fsl,imx6q-usbphy", "fsl,imx23-usbphy";
 				reg = <0x020c9000 0x1000>;
 				interrupts = <0 44 0x04>;
+				clocks = <&clks 182>;
 			};
 
 			usbphy2: usbphy@020ca000 {
 				compatible = "fsl,imx6q-usbphy", "fsl,imx23-usbphy";
 				reg = <0x020ca000 0x1000>;
 				interrupts = <0 45 0x04>;
+				clocks = <&clks 183>;
 			};
 
 			snvs@020cc000 {
@@ -612,6 +637,9 @@
 				compatible = "fsl,imx6q-sdma", "fsl,imx35-sdma";
 				reg = <0x020ec000 0x4000>;
 				interrupts = <0 2 0x04>;
+				clocks = <&clks 155>, <&clks 155>;
+				clock-names = "ipg", "ahb";
+				fsl,sdma-ram-script-name = "imx/sdma/sdma-imx6q-to1.bin";
 			};
 		};
 
@@ -635,6 +663,7 @@
 				compatible = "fsl,imx6q-usb", "fsl,imx27-usb";
 				reg = <0x02184000 0x200>;
 				interrupts = <0 43 0x04>;
+				clocks = <&clks 162>;
 				fsl,usbphy = <&usbphy1>;
 				status = "disabled";
 			};
@@ -643,6 +672,7 @@
 				compatible = "fsl,imx6q-usb", "fsl,imx27-usb";
 				reg = <0x02184200 0x200>;
 				interrupts = <0 40 0x04>;
+				clocks = <&clks 162>;
 				fsl,usbphy = <&usbphy2>;
 				status = "disabled";
 			};
@@ -651,6 +681,7 @@
 				compatible = "fsl,imx6q-usb", "fsl,imx27-usb";
 				reg = <0x02184400 0x200>;
 				interrupts = <0 41 0x04>;
+				clocks = <&clks 162>;
 				status = "disabled";
 			};
 
@@ -658,6 +689,7 @@
 				compatible = "fsl,imx6q-usb", "fsl,imx27-usb";
 				reg = <0x02184600 0x200>;
 				interrupts = <0 42 0x04>;
+				clocks = <&clks 162>;
 				status = "disabled";
 			};
 
@@ -665,6 +697,8 @@
 				compatible = "fsl,imx6q-fec";
 				reg = <0x02188000 0x4000>;
 				interrupts = <0 118 0x04 0 119 0x04>;
+				clocks = <&clks 117>, <&clks 117>;
+				clock-names = "ipg", "ahb";
 				status = "disabled";
 			};
 
@@ -677,6 +711,8 @@
 				compatible = "fsl,imx6q-usdhc";
 				reg = <0x02190000 0x4000>;
 				interrupts = <0 22 0x04>;
+				clocks = <&clks 163>, <&clks 163>, <&clks 163>;
+				clock-names = "ipg", "ahb", "per";
 				status = "disabled";
 			};
 
@@ -684,6 +720,8 @@
 				compatible = "fsl,imx6q-usdhc";
 				reg = <0x02194000 0x4000>;
 				interrupts = <0 23 0x04>;
+				clocks = <&clks 164>, <&clks 164>, <&clks 164>;
+				clock-names = "ipg", "ahb", "per";
 				status = "disabled";
 			};
 
@@ -691,6 +729,8 @@
 				compatible = "fsl,imx6q-usdhc";
 				reg = <0x02198000 0x4000>;
 				interrupts = <0 24 0x04>;
+				clocks = <&clks 165>, <&clks 165>, <&clks 165>;
+				clock-names = "ipg", "ahb", "per";
 				status = "disabled";
 			};
 
@@ -698,6 +738,8 @@
 				compatible = "fsl,imx6q-usdhc";
 				reg = <0x0219c000 0x4000>;
 				interrupts = <0 25 0x04>;
+				clocks = <&clks 166>, <&clks 166>, <&clks 166>;
+				clock-names = "ipg", "ahb", "per";
 				status = "disabled";
 			};
 
@@ -707,6 +749,7 @@
 				compatible = "fsl,imx6q-i2c", "fsl,imx1-i2c";
 				reg = <0x021a0000 0x4000>;
 				interrupts = <0 36 0x04>;
+				clocks = <&clks 125>;
 				status = "disabled";
 			};
 
@@ -716,6 +759,7 @@
 				compatible = "fsl,imx6q-i2c", "fsl,imx1-i2c";
 				reg = <0x021a4000 0x4000>;
 				interrupts = <0 37 0x04>;
+				clocks = <&clks 126>;
 				status = "disabled";
 			};
 
@@ -725,6 +769,7 @@
 				compatible = "fsl,imx6q-i2c", "fsl,imx1-i2c";
 				reg = <0x021a8000 0x4000>;
 				interrupts = <0 38 0x04>;
+				clocks = <&clks 127>;
 				status = "disabled";
 			};
 
@@ -788,6 +833,8 @@
 				compatible = "fsl,imx6q-uart", "fsl,imx21-uart";
 				reg = <0x021e8000 0x4000>;
 				interrupts = <0 27 0x04>;
+				clocks = <&clks 160>, <&clks 161>;
+				clock-names = "ipg", "per";
 				status = "disabled";
 			};
 
@@ -795,6 +842,8 @@
 				compatible = "fsl,imx6q-uart", "fsl,imx21-uart";
 				reg = <0x021ec000 0x4000>;
 				interrupts = <0 28 0x04>;
+				clocks = <&clks 160>, <&clks 161>;
+				clock-names = "ipg", "per";
 				status = "disabled";
 			};
 
@@ -802,6 +851,8 @@
 				compatible = "fsl,imx6q-uart", "fsl,imx21-uart";
 				reg = <0x021f0000 0x4000>;
 				interrupts = <0 29 0x04>;
+				clocks = <&clks 160>, <&clks 161>;
+				clock-names = "ipg", "per";
 				status = "disabled";
 			};
 
@@ -809,6 +860,8 @@
 				compatible = "fsl,imx6q-uart", "fsl,imx21-uart";
 				reg = <0x021f4000 0x4000>;
 				interrupts = <0 30 0x04>;
+				clocks = <&clks 160>, <&clks 161>;
+				clock-names = "ipg", "per";
 				status = "disabled";
 			};
 		};