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dt-bindings: clock: add imx8qxp lpcg clock binding

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The Low-Power Clock Gate (LPCG) modules contain a local programming
model to control the clock gates for the peripherals. An LPCG module
is used to locally gate the clocks for the associated peripheral.

Note:
This level of clock gating is provided after the clocks are generated
by the SCU resources and clock controls. Thus even if the clock is
enabled by these control bits, it might still not be running based
on the base resource.

Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: devicetree@vger.kernel.org
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Aisheng Dong 2018-12-13 01:08:06 +00:00 committed by Stephen Boyd
parent 8cecda9164
commit 0f5ab411f5
2 changed files with 204 additions and 0 deletions
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51
Documentation/devicetree/bindings/clock/imx8qxp-lpcg.txt Normal file
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* NXP i.MX8QXP LPCG (Low-Power Clock Gating) Clock bindings
The Low-Power Clock Gate (LPCG) modules contain a local programming
model to control the clock gates for the peripherals. An LPCG module
is used to locally gate the clocks for the associated peripheral.
Note:
This level of clock gating is provided after the clocks are generated
by the SCU resources and clock controls. Thus even if the clock is
enabled by these control bits, it might still not be running based
on the base resource.
Required properties:
- compatible: Should be one of:
"fsl,imx8qxp-lpcg-adma",
"fsl,imx8qxp-lpcg-conn",
"fsl,imx8qxp-lpcg-dc",
"fsl,imx8qxp-lpcg-dsp",
"fsl,imx8qxp-lpcg-gpu",
"fsl,imx8qxp-lpcg-hsio",
"fsl,imx8qxp-lpcg-img",
"fsl,imx8qxp-lpcg-lsio",
"fsl,imx8qxp-lpcg-vpu"
- reg: Address and length of the register set
- #clock-cells: Should be <1>
The clock consumer should specify the desired clock by having the clock
ID in its "clocks" phandle cell.
See the full list of clock IDs from:
include/dt-bindings/clock/imx8qxp-clock.h
Examples:
#include <dt-bindings/clock/imx8qxp-clock.h>
conn_lpcg: clock-controller@5b200000 {
compatible = "fsl,imx8qxp-lpcg-conn";
reg = <0x5b200000 0xb0000>;
#clock-cells = <1>;
};
usdhc1: mmc@5b010000 {
compatible = "fsl,imx8qxp-usdhc", "fsl,imx7d-usdhc";
interrupt-parent = <&gic>;
interrupts = <GIC_SPI 232 IRQ_TYPE_LEVEL_HIGH>;
reg = <0x5b010000 0x10000>;
clocks = <&conn_lpcg IMX8QXP_CONN_LPCG_SDHC0_IPG_CLK>,
<&conn_lpcg IMX8QXP_CONN_LPCG_SDHC0_PER_CLK>,
<&conn_lpcg IMX8QXP_CONN_LPCG_SDHC0_HCLK>;
clock-names = "ipg", "per", "ahb";
};

153
include/dt-bindings/clock/imx8qxp-clock.h
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@ -133,4 +133,157 @@
#define IMX8QXP_SCU_CLK_END 190
/* LPCG clocks */
/* LSIO SS LPCG */
#define IMX8QXP_LSIO_LPCG_PWM0_IPG_CLK 0
#define IMX8QXP_LSIO_LPCG_PWM0_IPG_S_CLK 1
#define IMX8QXP_LSIO_LPCG_PWM0_IPG_HF_CLK 2
#define IMX8QXP_LSIO_LPCG_PWM0_IPG_SLV_CLK 3
#define IMX8QXP_LSIO_LPCG_PWM0_IPG_MSTR_CLK 4
#define IMX8QXP_LSIO_LPCG_PWM1_IPG_CLK 5
#define IMX8QXP_LSIO_LPCG_PWM1_IPG_S_CLK 6
#define IMX8QXP_LSIO_LPCG_PWM1_IPG_HF_CLK 7
#define IMX8QXP_LSIO_LPCG_PWM1_IPG_SLV_CLK 8
#define IMX8QXP_LSIO_LPCG_PWM1_IPG_MSTR_CLK 9
#define IMX8QXP_LSIO_LPCG_PWM2_IPG_CLK 10
#define IMX8QXP_LSIO_LPCG_PWM2_IPG_S_CLK 11
#define IMX8QXP_LSIO_LPCG_PWM2_IPG_HF_CLK 12
#define IMX8QXP_LSIO_LPCG_PWM2_IPG_SLV_CLK 13
#define IMX8QXP_LSIO_LPCG_PWM2_IPG_MSTR_CLK 14
#define IMX8QXP_LSIO_LPCG_PWM3_IPG_CLK 15
#define IMX8QXP_LSIO_LPCG_PWM3_IPG_S_CLK 16
#define IMX8QXP_LSIO_LPCG_PWM3_IPG_HF_CLK 17
#define IMX8QXP_LSIO_LPCG_PWM3_IPG_SLV_CLK 18
#define IMX8QXP_LSIO_LPCG_PWM3_IPG_MSTR_CLK 19
#define IMX8QXP_LSIO_LPCG_PWM4_IPG_CLK 20
#define IMX8QXP_LSIO_LPCG_PWM4_IPG_S_CLK 21
#define IMX8QXP_LSIO_LPCG_PWM4_IPG_HF_CLK 22
#define IMX8QXP_LSIO_LPCG_PWM4_IPG_SLV_CLK 23
#define IMX8QXP_LSIO_LPCG_PWM4_IPG_MSTR_CLK 24
#define IMX8QXP_LSIO_LPCG_PWM5_IPG_CLK 25
#define IMX8QXP_LSIO_LPCG_PWM5_IPG_S_CLK 26
#define IMX8QXP_LSIO_LPCG_PWM5_IPG_HF_CLK 27
#define IMX8QXP_LSIO_LPCG_PWM5_IPG_SLV_CLK 28
#define IMX8QXP_LSIO_LPCG_PWM5_IPG_MSTR_CLK 29
#define IMX8QXP_LSIO_LPCG_PWM6_IPG_CLK 30
#define IMX8QXP_LSIO_LPCG_PWM6_IPG_S_CLK 31
#define IMX8QXP_LSIO_LPCG_PWM6_IPG_HF_CLK 32
#define IMX8QXP_LSIO_LPCG_PWM6_IPG_SLV_CLK 33
#define IMX8QXP_LSIO_LPCG_PWM6_IPG_MSTR_CLK 34
#define IMX8QXP_LSIO_LPCG_PWM7_IPG_CLK 35
#define IMX8QXP_LSIO_LPCG_PWM7_IPG_S_CLK 36
#define IMX8QXP_LSIO_LPCG_PWM7_IPG_HF_CLK 37
#define IMX8QXP_LSIO_LPCG_PWM7_IPG_SLV_CLK 38
#define IMX8QXP_LSIO_LPCG_PWM7_IPG_MSTR_CLK 39
#define IMX8QXP_LSIO_LPCG_GPT0_IPG_CLK 40
#define IMX8QXP_LSIO_LPCG_GPT0_IPG_S_CLK 41
#define IMX8QXP_LSIO_LPCG_GPT0_IPG_HF_CLK 42
#define IMX8QXP_LSIO_LPCG_GPT0_IPG_SLV_CLK 43
#define IMX8QXP_LSIO_LPCG_GPT0_IPG_MSTR_CLK 44
#define IMX8QXP_LSIO_LPCG_GPT1_IPG_CLK 45
#define IMX8QXP_LSIO_LPCG_GPT1_IPG_S_CLK 46
#define IMX8QXP_LSIO_LPCG_GPT1_IPG_HF_CLK 47
#define IMX8QXP_LSIO_LPCG_GPT1_IPG_SLV_CLK 48
#define IMX8QXP_LSIO_LPCG_GPT1_IPG_MSTR_CLK 49
#define IMX8QXP_LSIO_LPCG_GPT2_IPG_CLK 50
#define IMX8QXP_LSIO_LPCG_GPT2_IPG_S_CLK 51
#define IMX8QXP_LSIO_LPCG_GPT2_IPG_HF_CLK 52
#define IMX8QXP_LSIO_LPCG_GPT2_IPG_SLV_CLK 53
#define IMX8QXP_LSIO_LPCG_GPT2_IPG_MSTR_CLK 54
#define IMX8QXP_LSIO_LPCG_GPT3_IPG_CLK 55
#define IMX8QXP_LSIO_LPCG_GPT3_IPG_S_CLK 56
#define IMX8QXP_LSIO_LPCG_GPT3_IPG_HF_CLK 57
#define IMX8QXP_LSIO_LPCG_GPT3_IPG_SLV_CLK 58
#define IMX8QXP_LSIO_LPCG_GPT3_IPG_MSTR_CLK 59
#define IMX8QXP_LSIO_LPCG_GPT4_IPG_CLK 60
#define IMX8QXP_LSIO_LPCG_GPT4_IPG_S_CLK 61
#define IMX8QXP_LSIO_LPCG_GPT4_IPG_HF_CLK 62
#define IMX8QXP_LSIO_LPCG_GPT4_IPG_SLV_CLK 63
#define IMX8QXP_LSIO_LPCG_GPT4_IPG_MSTR_CLK 64
#define IMX8QXP_LSIO_LPCG_FSPI0_HCLK 65
#define IMX8QXP_LSIO_LPCG_FSPI0_IPG_CLK 66
#define IMX8QXP_LSIO_LPCG_FSPI0_IPG_S_CLK 67
#define IMX8QXP_LSIO_LPCG_FSPI0_IPG_SFCK 68
#define IMX8QXP_LSIO_LPCG_FSPI1_HCLK 69
#define IMX8QXP_LSIO_LPCG_FSPI1_IPG_CLK 70
#define IMX8QXP_LSIO_LPCG_FSPI1_IPG_S_CLK 71
#define IMX8QXP_LSIO_LPCG_FSPI1_IPG_SFCK 72
#define IMX8QXP_LSIO_LPCG_CLK_END 73
/* Connectivity SS LPCG */
#define IMX8QXP_CONN_LPCG_SDHC0_IPG_CLK 0
#define IMX8QXP_CONN_LPCG_SDHC0_PER_CLK 1
#define IMX8QXP_CONN_LPCG_SDHC0_HCLK 2
#define IMX8QXP_CONN_LPCG_SDHC1_IPG_CLK 3
#define IMX8QXP_CONN_LPCG_SDHC1_PER_CLK 4
#define IMX8QXP_CONN_LPCG_SDHC1_HCLK 5
#define IMX8QXP_CONN_LPCG_SDHC2_IPG_CLK 6
#define IMX8QXP_CONN_LPCG_SDHC2_PER_CLK 7
#define IMX8QXP_CONN_LPCG_SDHC2_HCLK 8
#define IMX8QXP_CONN_LPCG_GPMI_APB_CLK 9
#define IMX8QXP_CONN_LPCG_GPMI_BCH_APB_CLK 10
#define IMX8QXP_CONN_LPCG_GPMI_BCH_IO_CLK 11
#define IMX8QXP_CONN_LPCG_GPMI_BCH_CLK 12
#define IMX8QXP_CONN_LPCG_APBHDMA_CLK 13
#define IMX8QXP_CONN_LPCG_ENET0_ROOT_CLK 14
#define IMX8QXP_CONN_LPCG_ENET0_TX_CLK 15
#define IMX8QXP_CONN_LPCG_ENET0_AHB_CLK 16
#define IMX8QXP_CONN_LPCG_ENET0_IPG_S_CLK 17
#define IMX8QXP_CONN_LPCG_ENET0_IPG_CLK 18
#define IMX8QXP_CONN_LPCG_ENET1_ROOT_CLK 19
#define IMX8QXP_CONN_LPCG_ENET1_TX_CLK 20
#define IMX8QXP_CONN_LPCG_ENET1_AHB_CLK 21
#define IMX8QXP_CONN_LPCG_ENET1_IPG_S_CLK 22
#define IMX8QXP_CONN_LPCG_ENET1_IPG_CLK 23
#define IMX8QXP_CONN_LPCG_CLK_END 24
/* ADMA SS LPCG */
#define IMX8QXP_ADMA_LPCG_UART0_IPG_CLK 0
#define IMX8QXP_ADMA_LPCG_UART0_BAUD_CLK 1
#define IMX8QXP_ADMA_LPCG_UART1_IPG_CLK 2
#define IMX8QXP_ADMA_LPCG_UART1_BAUD_CLK 3
#define IMX8QXP_ADMA_LPCG_UART2_IPG_CLK 4
#define IMX8QXP_ADMA_LPCG_UART2_BAUD_CLK 5
#define IMX8QXP_ADMA_LPCG_UART3_IPG_CLK 6
#define IMX8QXP_ADMA_LPCG_UART3_BAUD_CLK 7
#define IMX8QXP_ADMA_LPCG_SPI0_IPG_CLK 8
#define IMX8QXP_ADMA_LPCG_SPI1_IPG_CLK 9
#define IMX8QXP_ADMA_LPCG_SPI2_IPG_CLK 10
#define IMX8QXP_ADMA_LPCG_SPI3_IPG_CLK 11
#define IMX8QXP_ADMA_LPCG_SPI0_CLK 12
#define IMX8QXP_ADMA_LPCG_SPI1_CLK 13
#define IMX8QXP_ADMA_LPCG_SPI2_CLK 14
#define IMX8QXP_ADMA_LPCG_SPI3_CLK 15
#define IMX8QXP_ADMA_LPCG_CAN0_IPG_CLK 16
#define IMX8QXP_ADMA_LPCG_CAN0_IPG_PE_CLK 17
#define IMX8QXP_ADMA_LPCG_CAN0_IPG_CHI_CLK 18
#define IMX8QXP_ADMA_LPCG_CAN1_IPG_CLK 19
#define IMX8QXP_ADMA_LPCG_CAN1_IPG_PE_CLK 20
#define IMX8QXP_ADMA_LPCG_CAN1_IPG_CHI_CLK 21
#define IMX8QXP_ADMA_LPCG_CAN2_IPG_CLK 22
#define IMX8QXP_ADMA_LPCG_CAN2_IPG_PE_CLK 23
#define IMX8QXP_ADMA_LPCG_CAN2_IPG_CHI_CLK 24
#define IMX8QXP_ADMA_LPCG_I2C0_CLK 25
#define IMX8QXP_ADMA_LPCG_I2C1_CLK 26
#define IMX8QXP_ADMA_LPCG_I2C2_CLK 27
#define IMX8QXP_ADMA_LPCG_I2C3_CLK 28
#define IMX8QXP_ADMA_LPCG_I2C0_IPG_CLK 29
#define IMX8QXP_ADMA_LPCG_I2C1_IPG_CLK 30
#define IMX8QXP_ADMA_LPCG_I2C2_IPG_CLK 31
#define IMX8QXP_ADMA_LPCG_I2C3_IPG_CLK 32
#define IMX8QXP_ADMA_LPCG_FTM0_CLK 33
#define IMX8QXP_ADMA_LPCG_FTM1_CLK 34
#define IMX8QXP_ADMA_LPCG_FTM0_IPG_CLK 35
#define IMX8QXP_ADMA_LPCG_FTM1_IPG_CLK 36
#define IMX8QXP_ADMA_LPCG_PWM_HI_CLK 37
#define IMX8QXP_ADMA_LPCG_PWM_IPG_CLK 38
#define IMX8QXP_ADMA_LPCG_LCD_PIX_CLK 39
#define IMX8QXP_ADMA_LPCG_LCD_APB_CLK 40
#define IMX8QXP_ADMA_LPCG_CLK_END 41
#endif /* __DT_BINDINGS_CLOCK_IMX8QXP_H */