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From: Adam Ford <aford173@gmail.com>
To: linux-arm-kernel@lists.infradead.org
Cc: aford@beaconembedded.com, Adam Ford <aford173@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+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>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] arm64: dts: imx8mn: Enable Overdrive mode
Date: Tue, 28 Nov 2023 15:18:31 -0600	[thread overview]
Message-ID: <20231128211832.313544-1-aford173@gmail.com> (raw)

The i.MX8M Nano supports and overdrive mode if the SoC is given
the proper voltage.  Add imx8mn-overdrive.dtsi file which can
be included by boards who support the voltage necessary to handle
the faster clocks.  This increases the GPU clocks from 400MHz to
600MHz.

Signed-off-by: Adam Ford <aford173@gmail.com>

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-overdrive.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-overdrive.dtsi
new file mode 100644
index 000000000000..5d03fb893e90
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mn-overdrive.dtsi
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+&gpu {
+	assigned-clocks = <&clk IMX8MN_CLK_GPU_CORE>,
+			  <&clk IMX8MN_CLK_GPU_SHADER>,
+			  <&clk IMX8MN_CLK_GPU_AXI>,
+			  <&clk IMX8MN_CLK_GPU_AHB>,
+			  <&clk IMX8MN_GPU_PLL>;
+	assigned-clock-parents = <&clk IMX8MN_GPU_PLL_OUT>,
+				  <&clk IMX8MN_GPU_PLL_OUT>,
+				  <&clk IMX8MN_SYS_PLL1_800M>,
+				  <&clk IMX8MN_SYS_PLL1_800M>;
+	assigned-clock-rates = <600000000>,
+			       <600000000>,
+			       <800000000>,
+			       <400000000>,
+			       <1200000000>;
+};
-- 
2.40.1


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WARNING: multiple messages have this Message-ID (diff)
From: Adam Ford <aford173@gmail.com>
To: linux-arm-kernel@lists.infradead.org
Cc: aford@beaconembedded.com, Adam Ford <aford173@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+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>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] arm64: dts: imx8mn: Enable Overdrive mode
Date: Tue, 28 Nov 2023 15:18:31 -0600	[thread overview]
Message-ID: <20231128211832.313544-1-aford173@gmail.com> (raw)

The i.MX8M Nano supports and overdrive mode if the SoC is given
the proper voltage.  Add imx8mn-overdrive.dtsi file which can
be included by boards who support the voltage necessary to handle
the faster clocks.  This increases the GPU clocks from 400MHz to
600MHz.

Signed-off-by: Adam Ford <aford173@gmail.com>

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-overdrive.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-overdrive.dtsi
new file mode 100644
index 000000000000..5d03fb893e90
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mn-overdrive.dtsi
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+&gpu {
+	assigned-clocks = <&clk IMX8MN_CLK_GPU_CORE>,
+			  <&clk IMX8MN_CLK_GPU_SHADER>,
+			  <&clk IMX8MN_CLK_GPU_AXI>,
+			  <&clk IMX8MN_CLK_GPU_AHB>,
+			  <&clk IMX8MN_GPU_PLL>;
+	assigned-clock-parents = <&clk IMX8MN_GPU_PLL_OUT>,
+				  <&clk IMX8MN_GPU_PLL_OUT>,
+				  <&clk IMX8MN_SYS_PLL1_800M>,
+				  <&clk IMX8MN_SYS_PLL1_800M>;
+	assigned-clock-rates = <600000000>,
+			       <600000000>,
+			       <800000000>,
+			       <400000000>,
+			       <1200000000>;
+};
-- 
2.40.1


             reply	other threads:[~2023-11-28 21:19 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-28 21:18 Adam Ford [this message]
2023-11-28 21:18 ` [PATCH 1/2] arm64: dts: imx8mn: Enable Overdrive mode Adam Ford
2023-11-28 21:18 ` [PATCH 2/2] arm64: dts: imx8mn-beacon: Support overdrive mode Adam Ford
2023-11-28 21:18   ` Adam Ford
2023-12-14  2:23 ` [PATCH 1/2] arm64: dts: imx8mn: Enable Overdrive mode Shawn Guo
2023-12-14  2:23   ` Shawn Guo

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