linux-kernel - [PATCH v3 4/4] arm64: dts: imx8mq: Add node to G2 hardware

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Date:   Thu, 25 Nov 2021 16:56:50 +0100
From:   Benjamin Gaignard <benjamin.gaignard@...labora.com>
To:     mchehab@...nel.org, ezequiel@...guardiasur.com.ar,
        p.zabel@...gutronix.de, gregkh@...uxfoundation.org,
        hverkuil-cisco@...all.nl
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-staging@...ts.linux.dev, kernel@...labora.com,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>
Subject: [PATCH v3 4/4] arm64: dts: imx8mq: Add node to G2 hardware

Split the VPU node in two: one for G1 and one for G2 since they are
different hardware blocks.
Add syscon for the hardware control block.
Remove the reg-names property that is useless.
Each VPU node only needs one interrupt.
Change G2 assigned clock to match the specification.
In both nodes all the clocks need to be assigned to make
sure that the control block will be correctly clocked even if
only one device node is enabled.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...labora.com>

Please note that the only purpose of this commit is to allow to test
G2 hardware block for IMX8MQ until a proper solution isuing power domain
can be found. Do not merge it.
---
 arch/arm64/boot/dts/freescale/imx8mq.dtsi | 43 ++++++++++++++++++-----
 1 file changed, 34 insertions(+), 9 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
index 972766b67a15..89d46b1e6aae 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
@@ -1432,15 +1432,16 @@ usb3_phy1: usb-phy@...f0040 {
 			status = "disabled";
 		};
 
-		vpu: video-codec@...00000 {
+		vpu_ctrl: syscon@...20000 {
+			compatible = "nxp,imx8mq-vpu-ctrl", "syscon";
+			reg = <0x38320000 0x10000>;
+		};
+
+		vpu_g1: video-codec@...00000 {
 			compatible = "nxp,imx8mq-vpu";
-			reg = <0x38300000 0x10000>,
-			      <0x38310000 0x10000>,
-			      <0x38320000 0x10000>;
-			reg-names = "g1", "g2", "ctrl";
-			interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
-			interrupt-names = "g1", "g2";
+			reg = <0x38300000 0x10000>;
+			interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "g1";
 			clocks = <&clk IMX8MQ_CLK_VPU_G1_ROOT>,
 				 <&clk IMX8MQ_CLK_VPU_G2_ROOT>,
 				 <&clk IMX8MQ_CLK_VPU_DEC_ROOT>;
@@ -1453,9 +1454,33 @@ vpu: video-codec@...00000 {
 						 <&clk IMX8MQ_VPU_PLL_OUT>,
 						 <&clk IMX8MQ_SYS1_PLL_800M>,
 						 <&clk IMX8MQ_VPU_PLL>;
-			assigned-clock-rates = <600000000>, <600000000>,
+			assigned-clock-rates = <600000000>, <300000000>,
+					       <800000000>, <0>;
+			power-domains = <&pgc_vpu>;
+			nxp,imx8m-vpu-ctrl = <&vpu_ctrl>;
+		};
+
+		vpu_g2: video-codec@...10000 {
+			compatible = "nxp,imx8mq-vpu-g2";
+			reg = <0x38310000 0x10000>;
+			interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "g2";
+			clocks = <&clk IMX8MQ_CLK_VPU_G1_ROOT>,
+				 <&clk IMX8MQ_CLK_VPU_G2_ROOT>,
+				 <&clk IMX8MQ_CLK_VPU_DEC_ROOT>;
+			clock-names = "g1", "g2",  "bus";
+			assigned-clocks = <&clk IMX8MQ_CLK_VPU_G1>,
+					  <&clk IMX8MQ_CLK_VPU_G2>,
+					  <&clk IMX8MQ_CLK_VPU_BUS>,
+					  <&clk IMX8MQ_VPU_PLL_BYPASS>;
+			assigned-clock-parents = <&clk IMX8MQ_VPU_PLL_OUT>,
+						 <&clk IMX8MQ_VPU_PLL_OUT>,
+						 <&clk IMX8MQ_SYS1_PLL_800M>,
+						 <&clk IMX8MQ_VPU_PLL>;
+			assigned-clock-rates = <600000000>, <300000000>,
 					       <800000000>, <0>;
 			power-domains = <&pgc_vpu>;
+			nxp,imx8m-vpu-ctrl = <&vpu_ctrl>;
 		};
 
 		pcie0: pcie@...00000 {
-- 
2.30.2