[PATCH V4 6/9] arm64: dts: imx8mn: add GPC node

[Adam Ford]

Add the DT node for the GPC, including all the PGC power domains,
some of them are not fully functional yet, as they require interaction
with the blk-ctrls to properly power up/down the peripherals.

Signed-off-by: Adam Ford <aford173 at gmail.com>
---
 arch/arm64/boot/dts/freescale/imx8mn.dtsi | 49 +++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index ba23b416b5e6..ef1699a9cd7d 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>
@@ -640,6 +642,53 @@ src: reset-controller at 30390000 {
 				interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
 				#reset-cells = <1>;
 			};
+
+			gpc: gpc at 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 at 0 {
+						#power-domain-cells = <0>;
+						reg = <IMX8MN_POWER_DOMAIN_HSIOMIX>;
+						clocks = <&clk IMX8MN_CLK_USB_BUS>;
+					};
+
+					pgc_otg1: power-domain at 1 {
+						#power-domain-cells = <0>;
+						reg = <IMX8MN_POWER_DOMAIN_OTG1>;
+						power-domains = <&pgc_hsiomix>;
+					};
+
+					pgc_gpumix: power-domain at 2 {
+						#power-domain-cells = <0>;
+						reg = <IMX8MN_POWER_DOMAIN_GPUMIX>;
+						clocks = <&clk IMX8MN_CLK_GPU_CORE_ROOT>,
+							 <&clk IMX8MN_CLK_GPU_SHADER>,
+							 <&clk IMX8MN_CLK_GPU_BUS_ROOT>,
+							 <&clk IMX8MN_CLK_GPU_AHB>;
+						resets = <&src IMX8MQ_RESET_GPU_RESET>;
+					};
+
+					pgc_dispmix: power-domain at 3 {
+						#power-domain-cells = <0>;
+						reg = <IMX8MN_POWER_DOMAIN_DISPMIX>;
+						clocks = <&clk IMX8MN_CLK_DISP_AXI_ROOT>,
+							 <&clk IMX8MN_CLK_DISP_APB_ROOT>;
+					};
+
+					pgc_mipi: power-domain at 4 {
+						#power-domain-cells = <0>;
+						reg = <IMX8MN_POWER_DOMAIN_MIPI>;
+						power-domains = <&pgc_dispmix>;
+					};
+				};
+			};
 		};

 		aips2: bus at 30400000 {
--
2.32.0