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Subject[PATCH V2 3/5] arm64: dts: imx8mn: add GPC node and power domains
Date
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@gmail.com>
---
V2: Fix missing includes
Remove interrupt controller flag
Remove domains which interact with blk-ctl

arch/arm64/boot/dts/freescale/imx8mn.dtsi | 36 +++++++++++++++++++++++
1 file changed, 36 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index ee1790230490..c37dee13057a 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>
@@ -598,6 +600,40 @@ 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
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