dt-bindings: imx: Add clock binding doc for imx8mm

Add the clock binding doc for i.MX8MM.
Signed-off-by: NBai Ping <ping.bai@nxp.com>
Reviewed-by: NRob Herring <robh@kernel.org>
Signed-off-by: NStephen Boyd <sboyd@kernel.org>

Documentation/devicetree/bindings/clock/imx8mm-clock.txt

+* Clock bindings for NXP i.MX8M Mini
+
+Required properties:
+- compatible: Should be "fsl,imx8mm-ccm"
+- reg: Address and length of the register set
+- #clock-cells: Should be <1>
+- clocks: list of clock specifiers, must contain an entry for each required
+          entry in clock-names
+- clock-names: should include the following entries:
+    - "osc_32k"
+    - "osc_24m"
+    - "clk_ext1"
+    - "clk_ext2"
+    - "clk_ext3"
+    - "clk_ext4"
+
+clk: clock-controller@30380000 {
+	compatible = "fsl,imx8mm-ccm";
+	reg = <0x0 0x30380000 0x0 0x10000>;
+	#clock-cells = <1>;
+	clocks = <&osc_32k>, <&osc_24m>, <&clk_ext1>, <&clk_ext2>,
+		 <&clk_ext3>, <&clk_ext4>;
+	clock-names = "osc_32k", "osc_24m", "clk_ext1", "clk_ext2",
+		      "clk_ext3", "clk_ext4";
+};
+
+The clock consumer should specify the desired clock by having the clock
+ID in its "clocks" phandle cell. See include/dt-bindings/clock/imx8mm-clock.h
+for the full list of i.MX8M Mini clock IDs.

include/dt-bindings/clock/imx8mm-clock.h

+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2017-2018 NXP
+ */
+
+#ifndef __DT_BINDINGS_CLOCK_IMX8MM_H
+#define __DT_BINDINGS_CLOCK_IMX8MM_H
+
+#define IMX8MM_CLK_DUMMY			0
+#define IMX8MM_CLK_32K				1
+#define IMX8MM_CLK_24M				2
+#define IMX8MM_OSC_HDMI_CLK			3
+#define IMX8MM_CLK_EXT1				4
+#define IMX8MM_CLK_EXT2				5
+#define IMX8MM_CLK_EXT3				6
+#define IMX8MM_CLK_EXT4				7
+#define IMX8MM_AUDIO_PLL1_REF_SEL		8
+#define IMX8MM_AUDIO_PLL2_REF_SEL		9
+#define IMX8MM_VIDEO_PLL1_REF_SEL		10
+#define IMX8MM_DRAM_PLL_REF_SEL			11
+#define IMX8MM_GPU_PLL_REF_SEL			12
+#define IMX8MM_VPU_PLL_REF_SEL			13
+#define IMX8MM_ARM_PLL_REF_SEL			14
+#define IMX8MM_SYS_PLL1_REF_SEL			15
+#define IMX8MM_SYS_PLL2_REF_SEL			16
+#define IMX8MM_SYS_PLL3_REF_SEL			17
+#define IMX8MM_AUDIO_PLL1			18
+#define IMX8MM_AUDIO_PLL2			19
+#define IMX8MM_VIDEO_PLL1			20
+#define IMX8MM_DRAM_PLL				21
+#define IMX8MM_GPU_PLL				22
+#define IMX8MM_VPU_PLL				23
+#define IMX8MM_ARM_PLL				24
+#define IMX8MM_SYS_PLL1				25
+#define IMX8MM_SYS_PLL2				26
+#define IMX8MM_SYS_PLL3				27
+#define IMX8MM_AUDIO_PLL1_BYPASS		28
+#define IMX8MM_AUDIO_PLL2_BYPASS		29
+#define IMX8MM_VIDEO_PLL1_BYPASS		30
+#define IMX8MM_DRAM_PLL_BYPASS			31
+#define IMX8MM_GPU_PLL_BYPASS			32
+#define IMX8MM_VPU_PLL_BYPASS			33
+#define IMX8MM_ARM_PLL_BYPASS			34
+#define IMX8MM_SYS_PLL1_BYPASS			35
+#define IMX8MM_SYS_PLL2_BYPASS			36
+#define IMX8MM_SYS_PLL3_BYPASS			37
+#define IMX8MM_AUDIO_PLL1_OUT			38
+#define IMX8MM_AUDIO_PLL2_OUT			39
+#define IMX8MM_VIDEO_PLL1_OUT			40
+#define IMX8MM_DRAM_PLL_OUT			41
+#define IMX8MM_GPU_PLL_OUT			42
+#define IMX8MM_VPU_PLL_OUT			43
+#define IMX8MM_ARM_PLL_OUT			44
+#define IMX8MM_SYS_PLL1_OUT			45
+#define IMX8MM_SYS_PLL2_OUT			46
+#define IMX8MM_SYS_PLL3_OUT			47
+#define IMX8MM_SYS_PLL1_40M			48
+#define IMX8MM_SYS_PLL1_80M			49
+#define IMX8MM_SYS_PLL1_100M			50
+#define IMX8MM_SYS_PLL1_133M			51
+#define IMX8MM_SYS_PLL1_160M			52
+#define IMX8MM_SYS_PLL1_200M			53
+#define IMX8MM_SYS_PLL1_266M			54
+#define IMX8MM_SYS_PLL1_400M			55
+#define IMX8MM_SYS_PLL1_800M			56
+#define IMX8MM_SYS_PLL2_50M			57
+#define IMX8MM_SYS_PLL2_100M			58
+#define IMX8MM_SYS_PLL2_125M			59
+#define IMX8MM_SYS_PLL2_166M			60
+#define IMX8MM_SYS_PLL2_200M			61
+#define IMX8MM_SYS_PLL2_250M			62
+#define IMX8MM_SYS_PLL2_333M			63
+#define IMX8MM_SYS_PLL2_500M			64
+#define IMX8MM_SYS_PLL2_1000M			65
+
+/* core */
+#define IMX8MM_CLK_A53_SRC			66
+#define IMX8MM_CLK_M4_SRC			67
+#define IMX8MM_CLK_VPU_SRC			68
+#define IMX8MM_CLK_GPU3D_SRC			69
+#define IMX8MM_CLK_GPU2D_SRC			70
+#define IMX8MM_CLK_A53_CG			71
+#define IMX8MM_CLK_M4_CG			72
+#define IMX8MM_CLK_VPU_CG			73
+#define IMX8MM_CLK_GPU3D_CG			74
+#define IMX8MM_CLK_GPU2D_CG			75
+#define IMX8MM_CLK_A53_DIV			76
+#define IMX8MM_CLK_M4_DIV			77
+#define IMX8MM_CLK_VPU_DIV			78
+#define IMX8MM_CLK_GPU3D_DIV			79
+#define IMX8MM_CLK_GPU2D_DIV			80
+
+/* bus */
+#define IMX8MM_CLK_MAIN_AXI			81
+#define IMX8MM_CLK_ENET_AXI			82
+#define IMX8MM_CLK_NAND_USDHC_BUS		83
+#define IMX8MM_CLK_VPU_BUS			84
+#define IMX8MM_CLK_DISP_AXI			85
+#define IMX8MM_CLK_DISP_APB			86
+#define IMX8MM_CLK_DISP_RTRM			87
+#define IMX8MM_CLK_USB_BUS			88
+#define IMX8MM_CLK_GPU_AXI			89
+#define IMX8MM_CLK_GPU_AHB			90
+#define IMX8MM_CLK_NOC				91
+#define IMX8MM_CLK_NOC_APB			92
+
+#define IMX8MM_CLK_AHB				93
+#define IMX8MM_CLK_AUDIO_AHB			94
+#define IMX8MM_CLK_IPG_ROOT			95
+#define IMX8MM_CLK_IPG_AUDIO_ROOT		96
+
+#define IMX8MM_CLK_DRAM_ALT			97
+#define IMX8MM_CLK_DRAM_APB			98
+#define IMX8MM_CLK_VPU_G1			99
+#define IMX8MM_CLK_VPU_G2			100
+#define IMX8MM_CLK_DISP_DTRC			101
+#define IMX8MM_CLK_DISP_DC8000			102
+#define IMX8MM_CLK_PCIE1_CTRL			103
+#define IMX8MM_CLK_PCIE1_PHY			104
+#define IMX8MM_CLK_PCIE1_AUX			105
+#define IMX8MM_CLK_DC_PIXEL			106
+#define IMX8MM_CLK_LCDIF_PIXEL			107
+#define IMX8MM_CLK_SAI1				108
+#define IMX8MM_CLK_SAI2				109
+#define IMX8MM_CLK_SAI3				110
+#define IMX8MM_CLK_SAI4				111
+#define IMX8MM_CLK_SAI5				112
+#define IMX8MM_CLK_SAI6				113
+#define IMX8MM_CLK_SPDIF1			114
+#define IMX8MM_CLK_SPDIF2			115
+#define IMX8MM_CLK_ENET_REF			116
+#define IMX8MM_CLK_ENET_TIMER			117
+#define IMX8MM_CLK_ENET_PHY_REF			118
+#define IMX8MM_CLK_NAND				119
+#define IMX8MM_CLK_QSPI				120
+#define IMX8MM_CLK_USDHC1			121
+#define IMX8MM_CLK_USDHC2			122
+#define IMX8MM_CLK_I2C1				123
+#define IMX8MM_CLK_I2C2				124
+#define IMX8MM_CLK_I2C3				125
+#define IMX8MM_CLK_I2C4				126
+#define IMX8MM_CLK_UART1			127
+#define IMX8MM_CLK_UART2			128
+#define IMX8MM_CLK_UART3			129
+#define IMX8MM_CLK_UART4			130
+#define IMX8MM_CLK_USB_CORE_REF			131
+#define IMX8MM_CLK_USB_PHY_REF			132
+#define IMX8MM_CLK_ECSPI1			133
+#define IMX8MM_CLK_ECSPI2			134
+#define IMX8MM_CLK_PWM1				135
+#define IMX8MM_CLK_PWM2				136
+#define IMX8MM_CLK_PWM3				137
+#define IMX8MM_CLK_PWM4				138
+#define IMX8MM_CLK_GPT1				139
+#define IMX8MM_CLK_WDOG				140
+#define IMX8MM_CLK_WRCLK			141
+#define IMX8MM_CLK_DSI_CORE			142
+#define IMX8MM_CLK_DSI_PHY_REF			143
+#define IMX8MM_CLK_DSI_DBI			144
+#define IMX8MM_CLK_USDHC3			145
+#define IMX8MM_CLK_CSI1_CORE			146
+#define IMX8MM_CLK_CSI1_PHY_REF			147
+#define IMX8MM_CLK_CSI1_ESC			148
+#define IMX8MM_CLK_CSI2_CORE			149
+#define IMX8MM_CLK_CSI2_PHY_REF			150
+#define IMX8MM_CLK_CSI2_ESC			151
+#define IMX8MM_CLK_PCIE2_CTRL			152
+#define IMX8MM_CLK_PCIE2_PHY			153
+#define IMX8MM_CLK_PCIE2_AUX			154
+#define IMX8MM_CLK_ECSPI3			155
+#define IMX8MM_CLK_PDM				156
+#define IMX8MM_CLK_VPU_H1			157
+#define IMX8MM_CLK_CLKO1			158
+
+#define IMX8MM_CLK_ECSPI1_ROOT			159
+#define IMX8MM_CLK_ECSPI2_ROOT			160
+#define IMX8MM_CLK_ECSPI3_ROOT			161
+#define IMX8MM_CLK_ENET1_ROOT			162
+#define IMX8MM_CLK_GPT1_ROOT			163
+#define IMX8MM_CLK_I2C1_ROOT			164
+#define IMX8MM_CLK_I2C2_ROOT			165
+#define IMX8MM_CLK_I2C3_ROOT			166
+#define IMX8MM_CLK_I2C4_ROOT			167
+#define IMX8MM_CLK_OCOTP_ROOT			168
+#define IMX8MM_CLK_PCIE1_ROOT			169
+#define IMX8MM_CLK_PWM1_ROOT			170
+#define IMX8MM_CLK_PWM2_ROOT			171
+#define IMX8MM_CLK_PWM3_ROOT			172
+#define IMX8MM_CLK_PWM4_ROOT			173
+#define IMX8MM_CLK_QSPI_ROOT			174
+#define IMX8MM_CLK_NAND_ROOT			175
+#define IMX8MM_CLK_SAI1_ROOT			176
+#define IMX8MM_CLK_SAI1_IPG			177
+#define IMX8MM_CLK_SAI2_ROOT			178
+#define IMX8MM_CLK_SAI2_IPG			179
+#define IMX8MM_CLK_SAI3_ROOT			180
+#define IMX8MM_CLK_SAI3_IPG			181
+#define IMX8MM_CLK_SAI4_ROOT			182
+#define IMX8MM_CLK_SAI4_IPG			183
+#define IMX8MM_CLK_SAI5_ROOT			184
+#define IMX8MM_CLK_SAI5_IPG			185
+#define IMX8MM_CLK_SAI6_ROOT			186
+#define IMX8MM_CLK_SAI6_IPG			187
+#define IMX8MM_CLK_UART1_ROOT			188
+#define IMX8MM_CLK_UART2_ROOT			189
+#define IMX8MM_CLK_UART3_ROOT			190
+#define IMX8MM_CLK_UART4_ROOT			191
+#define IMX8MM_CLK_USB1_CTRL_ROOT		192
+#define IMX8MM_CLK_GPU3D_ROOT			193
+#define IMX8MM_CLK_USDHC1_ROOT			194
+#define IMX8MM_CLK_USDHC2_ROOT			195
+#define IMX8MM_CLK_WDOG1_ROOT			196
+#define IMX8MM_CLK_WDOG2_ROOT			197
+#define IMX8MM_CLK_WDOG3_ROOT			198
+#define IMX8MM_CLK_VPU_G1_ROOT			199
+#define IMX8MM_CLK_GPU_BUS_ROOT			200
+#define IMX8MM_CLK_VPU_H1_ROOT			201
+#define IMX8MM_CLK_VPU_G2_ROOT			202
+#define IMX8MM_CLK_PDM_ROOT			203
+#define IMX8MM_CLK_DISP_ROOT			204
+#define IMX8MM_CLK_DISP_AXI_ROOT		205
+#define IMX8MM_CLK_DISP_APB_ROOT		206
+#define IMX8MM_CLK_DISP_RTRM_ROOT		207
+#define IMX8MM_CLK_USDHC3_ROOT			208
+#define IMX8MM_CLK_TMU_ROOT			209
+#define IMX8MM_CLK_VPU_DEC_ROOT			210
+#define IMX8MM_CLK_SDMA1_ROOT			211
+#define IMX8MM_CLK_SDMA2_ROOT			212
+#define IMX8MM_CLK_SDMA3_ROOT			213
+#define IMX8MM_CLK_GPT_3M			214
+#define IMX8MM_CLK_ARM				215
+#define IMX8MM_CLK_PDM_IPG			216
+#define IMX8MM_CLK_GPU2D_ROOT			217
+#define IMX8MM_CLK_MU_ROOT			218
+#define IMX8MM_CLK_CSI1_ROOT			219
+
+#define IMX8MM_CLK_DRAM_CORE			220
+#define IMX8MM_CLK_DRAM_ALT_ROOT		221
+
+#define IMX8MM_CLK_NAND_USDHC_BUS_RAWNAND_CLK	222
+
+#define IMX8MM_CLK_END				223
+
+#endif