This adds the DT nodes to describe the power domains available on the i.MX8MN. There are more power domains, but the displaymix and mipi power domains need a separate clock block controller which not yet available, so this limits it to the HSIO, OTG and GPU domains. Signed-off-by: Adam Ford <aford173@xxxxxxxxx> --- V3: Rebase on series starting https://lkml.org/lkml/2021/4/29/72 V2: Fix missing includes Remove interrupt controller flag Remove domains which interact with blk-ctl Signed-off-by: Adam Ford <aford173@xxxxxxxxx> diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi index 16ea50089567..609294329c7b 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi @@ -4,6 +4,8 @@ */ #include <dt-bindings/clock/imx8mn-clock.h> +#include <dt-bindings/power/imx8mn-power.h> +#include <dt-bindings/reset/imx8mq-reset.h> #include <dt-bindings/gpio/gpio.h> #include <dt-bindings/input/input.h> #include <dt-bindings/interrupt-controller/arm-gic.h> @@ -612,6 +614,40 @@ src: reset-controller@30390000 { interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>; #reset-cells = <1>; }; + + gpc: gpc@303a0000 { + compatible = "fsl,imx8mn-gpc"; + reg = <0x303a0000 0x10000>; + interrupt-parent = <&gic>; + interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>; + + pgc { + #address-cells = <1>; + #size-cells = <0>; + + pgc_hsiomix: power-domain@0 { + #power-domain-cells = <0>; + reg = <IMX8MN_POWER_DOMAIN_HSIOMIX>; + clocks = <&clk IMX8MN_CLK_USB_BUS>; + }; + + pgc_otg1: power-domain@1 { + #power-domain-cells = <0>; + reg = <IMX8MN_POWER_DOMAIN_OTG1>; + power-domains = <&pgc_hsiomix>; + }; + + pgc_gpumix: power-domain@2 { + #power-domain-cells = <0>; + reg = <IMX8MN_POWER_DOMAIN_GPUMIX>; + clocks = <&clk IMX8MN_CLK_GPU_CORE_ROOT>, + <&clk IMX8MN_CLK_GPU_SHADER_DIV>, + <&clk IMX8MN_CLK_GPU_BUS_ROOT>, + <&clk IMX8MN_CLK_GPU_AHB>; + resets = <&src IMX8MQ_RESET_GPU_RESET>; + }; + }; + }; }; aips2: bus@30400000 { -- 2.25.1
