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From: Adam Ford <aford173@gmail.com>
To: linux-arm-kernel@lists.infradead.org
Cc: peng.fan@oss.nxp.com, marex@denx.de, frieder.schrempf@kontron.de,
	tharvey@gateworks.com, aford@beaconembedded.com,
	Adam Ford <aford173@gmail.com>, Rob Herring <robh+dt@kernel.org>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	Andrey Smirnov <andrew.smirnov@gmail.com>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH V3 3/5] arm64: dts: imx8mn: add GPC node and power domains
Date: Thu, 29 Apr 2021 16:16:22 -0500	[thread overview]
Message-ID: <20210429211625.1835702-4-aford173@gmail.com> (raw)
In-Reply-To: <20210429211625.1835702-1-aford173@gmail.com>

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>
---
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@gmail.com>

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


  parent reply	other threads:[~2021-04-29 21:16 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-29 21:16 [PATCH V3 0/5] soc: imx8mn: Add gpcv2, USB and GPU Adam Ford
2021-04-29 21:16 ` [PATCH V3 1/5] dt-bindings: add defines for i.MX8MN power domains Adam Ford
2021-04-29 21:16 ` [PATCH V3 2/5] soc: imx: gpcv2: add support " Adam Ford
2021-04-29 21:16 ` Adam Ford [this message]
2021-04-29 21:16 ` [PATCH V3 4/5] arm64: dts: imx8mn: Add power-domain reference in USB controller Adam Ford
2021-04-29 21:16 ` [PATCH V3 5/5] arm64: dts: imx8mn: Add GPU node Adam Ford

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