imx-clk-dt-lookup

It replaces the clk_register_clkdev in imx6q clock driver with DT
 lookup.  It depends on Mike's clk-3.7 branch.
 
 When it gets merged together with imx-dt-3.7, there is a trivial
 conflict on arch/arm/boot/dts/imx6q.dtsi.
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Merge tag 'imx-clk-dt-lookup' into imx/dt-for-3.7-2

Conflicts:
	arch/arm/boot/dts/imx6q.dtsi

Documentation/devicetree/bindings/clock/imx6q-clock.txt

@@ -0,0 +1,222 @@
+* Clock bindings for Freescale i.MX6 Quad
+
+Required properties:
+- compatible: Should be "fsl,imx6q-ccm"
+- reg: Address and length of the register set
+- interrupts: Should contain CCM interrupt
+- #clock-cells: Should be <1>
+
+The clock consumer should specify the desired clock by having the clock
+ID in its "clocks" phandle cell.  The following is a full list of i.MX6Q
+clocks and IDs.
+
+	Clock			ID
+	---------------------------
+	dummy			0
+	ckil			1
+	ckih			2
+	osc			3
+	pll2_pfd0_352m		4
+	pll2_pfd1_594m		5
+	pll2_pfd2_396m		6
+	pll3_pfd0_720m		7
+	pll3_pfd1_540m		8
+	pll3_pfd2_508m		9
+	pll3_pfd3_454m		10
+	pll2_198m		11
+	pll3_120m		12
+	pll3_80m		13
+	pll3_60m		14
+	twd			15
+	step			16
+	pll1_sw			17
+	periph_pre		18
+	periph2_pre		19
+	periph_clk2_sel		20
+	periph2_clk2_sel	21
+	axi_sel			22
+	esai_sel		23
+	asrc_sel		24
+	spdif_sel		25
+	gpu2d_axi		26
+	gpu3d_axi		27
+	gpu2d_core_sel		28
+	gpu3d_core_sel		29
+	gpu3d_shader_sel	30
+	ipu1_sel		31
+	ipu2_sel		32
+	ldb_di0_sel		33
+	ldb_di1_sel		34
+	ipu1_di0_pre_sel	35
+	ipu1_di1_pre_sel	36
+	ipu2_di0_pre_sel	37
+	ipu2_di1_pre_sel	38
+	ipu1_di0_sel		39
+	ipu1_di1_sel		40
+	ipu2_di0_sel		41
+	ipu2_di1_sel		42
+	hsi_tx_sel		43
+	pcie_axi_sel		44
+	ssi1_sel		45
+	ssi2_sel		46
+	ssi3_sel		47
+	usdhc1_sel		48
+	usdhc2_sel		49
+	usdhc3_sel		50
+	usdhc4_sel		51
+	enfc_sel		52
+	emi_sel			53
+	emi_slow_sel		54
+	vdo_axi_sel		55
+	vpu_axi_sel		56
+	cko1_sel		57
+	periph			58
+	periph2			59
+	periph_clk2		60
+	periph2_clk2		61
+	ipg			62
+	ipg_per			63
+	esai_pred		64
+	esai_podf		65
+	asrc_pred		66
+	asrc_podf		67
+	spdif_pred		68
+	spdif_podf		69
+	can_root		70
+	ecspi_root		71
+	gpu2d_core_podf		72
+	gpu3d_core_podf		73
+	gpu3d_shader		74
+	ipu1_podf		75
+	ipu2_podf		76
+	ldb_di0_podf		77
+	ldb_di1_podf		78
+	ipu1_di0_pre		79
+	ipu1_di1_pre		80
+	ipu2_di0_pre		81
+	ipu2_di1_pre		82
+	hsi_tx_podf		83
+	ssi1_pred		84
+	ssi1_podf		85
+	ssi2_pred		86
+	ssi2_podf		87
+	ssi3_pred		88
+	ssi3_podf		89
+	uart_serial_podf	90
+	usdhc1_podf		91
+	usdhc2_podf		92
+	usdhc3_podf		93
+	usdhc4_podf		94
+	enfc_pred		95
+	enfc_podf		96
+	emi_podf		97
+	emi_slow_podf		98
+	vpu_axi_podf		99
+	cko1_podf		100
+	axi			101
+	mmdc_ch0_axi_podf	102
+	mmdc_ch1_axi_podf	103
+	arm			104
+	ahb			105
+	apbh_dma		106
+	asrc			107
+	can1_ipg		108
+	can1_serial		109
+	can2_ipg		110
+	can2_serial		111
+	ecspi1			112
+	ecspi2			113
+	ecspi3			114
+	ecspi4			115
+	ecspi5			116
+	enet			117
+	esai			118
+	gpt_ipg			119
+	gpt_ipg_per		120
+	gpu2d_core		121
+	gpu3d_core		122
+	hdmi_iahb		123
+	hdmi_isfr		124
+	i2c1			125
+	i2c2			126
+	i2c3			127
+	iim			128
+	enfc			129
+	ipu1			130
+	ipu1_di0		131
+	ipu1_di1		132
+	ipu2			133
+	ipu2_di0		134
+	ldb_di0			135
+	ldb_di1			136
+	ipu2_di1		137
+	hsi_tx			138
+	mlb			139
+	mmdc_ch0_axi		140
+	mmdc_ch1_axi		141
+	ocram			142
+	openvg_axi		143
+	pcie_axi		144
+	pwm1			145
+	pwm2			146
+	pwm3			147
+	pwm4			148
+	per1_bch		149
+	gpmi_bch_apb		150
+	gpmi_bch		151
+	gpmi_io			152
+	gpmi_apb		153
+	sata			154
+	sdma			155
+	spba			156
+	ssi1			157
+	ssi2			158
+	ssi3			159
+	uart_ipg		160
+	uart_serial		161
+	usboh3			162
+	usdhc1			163
+	usdhc2			164
+	usdhc3			165
+	usdhc4			166
+	vdo_axi			167
+	vpu_axi			168
+	cko1			169
+	pll1_sys		170
+	pll2_bus		171
+	pll3_usb_otg		172
+	pll4_audio		173
+	pll5_video		174
+	pll6_mlb		175
+	pll7_usb_host		176
+	pll8_enet		177
+	ssi1_ipg		178
+	ssi2_ipg		179
+	ssi3_ipg		180
+	rom			181
+	usbphy1			182
+	usbphy2			183
+	ldb_di0_div_3_5		184
+	ldb_di1_div_3_5		185
+
+Examples:
+
+clks: ccm@020c4000 {
+	compatible = "fsl,imx6q-ccm";
+	reg = <0x020c4000 0x4000>;
+	interrupts = <0 87 0x04 0 88 0x04>;
+	#clock-cells = <1>;
+	clock-output-names = ...
+			     "uart_ipg",
+			     "uart_serial",
+			     ...;
+};
+
+uart1: serial@02020000 {
+	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";
+};

arch/arm/boot/dts/imx6q-sabrelite.dts

@@ -122,6 +122,7 @@
 				codec: sgtl5000@0a {
 					compatible = "fsl,sgtl5000";
 					reg = <0x0a>;
+					clocks = <&clks 169>;
 					VDDA-supply = <&reg_2p5v>;
 					VDDIO-supply = <&reg_3p3v>;
 				};

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";
+			compatible = "fsl,imx6q-gpmi-nand";
-		       #address-cells = <1>;
+			#address-cells = <1>;
-		       #size-cells = <1>;
+			#size-cells = <1>;
-		       reg = <0x00112000 0x2000>, <0x00114000 0x2000>;
+			reg = <0x00112000 0x2000>, <0x00114000 0x2000>;
-		       reg-names = "gpmi-nand", "bch";
+			reg-names = "gpmi-nand", "bch";
-		       interrupts = <0 13 0x04>, <0 15 0x04>;
+			interrupts = <0 13 0x04>, <0 15 0x04>;
-		       interrupt-names = "gpmi-dma", "bch";
+			interrupt-names = "gpmi-dma", "bch";
-		       fsl,gpmi-dma-channel = <0>;
+			clocks = <&clks 152>, <&clks 153>, <&clks 151>,
-		       status = "disabled";
+				 <&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";
@@ -362,19 +382,22 @@
 				compatible = "fsl,imx6q-wdt", "fsl,imx21-wdt";
 				reg = <0x020bc000 0x4000>;
 				interrupts = <0 80 0x04>;
+				clocks = <&clks 0>;
 			};
 
 			wdog@020c0000 { /* WDOG2 */
 				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 {
@@ -471,12 +494,14 @@
 				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 {
@@ -724,6 +749,9 @@
 				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";
 			};
 		};
 
@@ -747,6 +775,7 @@
 				compatible = "fsl,imx6q-usb", "fsl,imx27-usb";
 				reg = <0x02184000 0x200>;
 				interrupts = <0 43 0x04>;
+				clocks = <&clks 162>;
 				fsl,usbphy = <&usbphy1>;
 				status = "disabled";
 			};
@@ -755,6 +784,7 @@
 				compatible = "fsl,imx6q-usb", "fsl,imx27-usb";
 				reg = <0x02184200 0x200>;
 				interrupts = <0 40 0x04>;
+				clocks = <&clks 162>;
 				fsl,usbphy = <&usbphy2>;
 				status = "disabled";
 			};
@@ -763,6 +793,7 @@
 				compatible = "fsl,imx6q-usb", "fsl,imx27-usb";
 				reg = <0x02184400 0x200>;
 				interrupts = <0 41 0x04>;
+				clocks = <&clks 162>;
 				status = "disabled";
 			};
 
@@ -770,6 +801,7 @@
 				compatible = "fsl,imx6q-usb", "fsl,imx27-usb";
 				reg = <0x02184600 0x200>;
 				interrupts = <0 42 0x04>;
+				clocks = <&clks 162>;
 				status = "disabled";
 			};
 
@@ -777,6 +809,8 @@
 				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";
 			};
 
@@ -789,6 +823,8 @@
 				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";
 			};
 
@@ -796,6 +832,8 @@
 				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";
 			};
 
@@ -803,6 +841,8 @@
 				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";
 			};
 
@@ -810,6 +850,8 @@
 				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";
 			};
 
@@ -819,6 +861,7 @@
 				compatible = "fsl,imx6q-i2c", "fsl,imx1-i2c";
 				reg = <0x021a0000 0x4000>;
 				interrupts = <0 36 0x04>;
+				clocks = <&clks 125>;
 				status = "disabled";
 			};
 
@@ -828,6 +871,7 @@
 				compatible = "fsl,imx6q-i2c", "fsl,imx1-i2c";
 				reg = <0x021a4000 0x4000>;
 				interrupts = <0 37 0x04>;
+				clocks = <&clks 126>;
 				status = "disabled";
 			};
 
@@ -837,6 +881,7 @@
 				compatible = "fsl,imx6q-i2c", "fsl,imx1-i2c";
 				reg = <0x021a8000 0x4000>;
 				interrupts = <0 38 0x04>;
+				clocks = <&clks 127>;
 				status = "disabled";
 			};
 
@@ -900,6 +945,8 @@
 				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";
 			};
 
@@ -907,6 +954,8 @@
 				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";
 			};
 
@@ -914,6 +963,8 @@
 				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";
 			};
 
@@ -921,6 +972,8 @@
 				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";
 			};
 		};

arch/arm/mach-imx/clk-imx6q.c

@@ -157,6 +157,7 @@ enum mx6q_clks {
 };
 
 static struct clk *clk[clk_max];
+static struct clk_onecell_data clk_data;
 
 static enum mx6q_clks const clks_init_on[] __initconst = {
 	mmdc_ch0_axi, rom,
@@ -392,48 +393,13 @@ int __init mx6q_clocks_init(void)
 			pr_err("i.MX6q clk %d: register failed with %ld\n",
 				i, PTR_ERR(clk[i]));
 
+	clk_data.clks = clk;
+	clk_data.clk_num = ARRAY_SIZE(clk);
+	of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
+
 	clk_register_clkdev(clk[gpt_ipg], "ipg", "imx-gpt.0");
 	clk_register_clkdev(clk[gpt_ipg_per], "per", "imx-gpt.0");
 	clk_register_clkdev(clk[twd], NULL, "smp_twd");
-	clk_register_clkdev(clk[apbh_dma], NULL, "110000.dma-apbh");
-	clk_register_clkdev(clk[per1_bch], "per1_bch", "112000.gpmi-nand");
-	clk_register_clkdev(clk[gpmi_bch_apb], "gpmi_bch_apb", "112000.gpmi-nand");
-	clk_register_clkdev(clk[gpmi_bch], "gpmi_bch", "112000.gpmi-nand");
-	clk_register_clkdev(clk[gpmi_apb], "gpmi_apb", "112000.gpmi-nand");
-	clk_register_clkdev(clk[gpmi_io], "gpmi_io", "112000.gpmi-nand");
-	clk_register_clkdev(clk[usboh3], NULL, "2184000.usb");
-	clk_register_clkdev(clk[usboh3], NULL, "2184200.usb");
-	clk_register_clkdev(clk[usboh3], NULL, "2184400.usb");
-	clk_register_clkdev(clk[usboh3], NULL, "2184600.usb");
-	clk_register_clkdev(clk[usbphy1], NULL, "20c9000.usbphy");
-	clk_register_clkdev(clk[usbphy2], NULL, "20ca000.usbphy");
-	clk_register_clkdev(clk[uart_serial], "per", "2020000.serial");
-	clk_register_clkdev(clk[uart_ipg], "ipg", "2020000.serial");
-	clk_register_clkdev(clk[uart_serial], "per", "21e8000.serial");
-	clk_register_clkdev(clk[uart_ipg], "ipg", "21e8000.serial");
-	clk_register_clkdev(clk[uart_serial], "per", "21ec000.serial");
-	clk_register_clkdev(clk[uart_ipg], "ipg", "21ec000.serial");
-	clk_register_clkdev(clk[uart_serial], "per", "21f0000.serial");
-	clk_register_clkdev(clk[uart_ipg], "ipg", "21f0000.serial");
-	clk_register_clkdev(clk[uart_serial], "per", "21f4000.serial");
-	clk_register_clkdev(clk[uart_ipg], "ipg", "21f4000.serial");
-	clk_register_clkdev(clk[enet], NULL, "2188000.ethernet");
-	clk_register_clkdev(clk[usdhc1], NULL, "2190000.usdhc");
-	clk_register_clkdev(clk[usdhc2], NULL, "2194000.usdhc");
-	clk_register_clkdev(clk[usdhc3], NULL, "2198000.usdhc");
-	clk_register_clkdev(clk[usdhc4], NULL, "219c000.usdhc");
-	clk_register_clkdev(clk[i2c1], NULL, "21a0000.i2c");
-	clk_register_clkdev(clk[i2c2], NULL, "21a4000.i2c");
-	clk_register_clkdev(clk[i2c3], NULL, "21a8000.i2c");
-	clk_register_clkdev(clk[ecspi1], NULL, "2008000.ecspi");
-	clk_register_clkdev(clk[ecspi2], NULL, "200c000.ecspi");
-	clk_register_clkdev(clk[ecspi3], NULL, "2010000.ecspi");
-	clk_register_clkdev(clk[ecspi4], NULL, "2014000.ecspi");
-	clk_register_clkdev(clk[ecspi5], NULL, "2018000.ecspi");
-	clk_register_clkdev(clk[sdma], NULL, "20ec000.sdma");
-	clk_register_clkdev(clk[dummy], NULL, "20bc000.wdog");
-	clk_register_clkdev(clk[dummy], NULL, "20c0000.wdog");
-	clk_register_clkdev(clk[ssi1_ipg], NULL, "2028000.ssi");
 	clk_register_clkdev(clk[cko1_sel], "cko1_sel", NULL);
 	clk_register_clkdev(clk[ahb], "ahb", NULL);
 	clk_register_clkdev(clk[cko1], "cko1", NULL);

arch/arm/mach-imx/mach-imx6q.c

@@ -99,7 +99,6 @@ static void __init imx6q_sabrelite_cko1_setup(void)
 	clk_set_parent(cko1_sel, ahb);
 	rate = clk_round_rate(cko1, 16000000);
 	clk_set_rate(cko1, rate);
-	clk_register_clkdev(cko1, NULL, "0-000a");
 put_clk:
 	if (!IS_ERR(cko1_sel))
 		clk_put(cko1_sel);