linux-kernel - [PATCH] arm64: dts: imx8mq: fix gpu clock

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Date:   Wed, 15 Jan 2020 02:07:01 +0000
From:   Peng Fan <peng.fan@....com>
To:     "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        Leonard Crestez <leonard.crestez@....com>,
        Abel Vesa <abel.vesa@....com>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>
CC:     dl-linux-imx <linux-imx@....com>,
        Anson Huang <anson.huang@....com>,
        Daniel Baluta <daniel.baluta@....com>,
        Jacky Bai <ping.bai@....com>,
        "angus@...ea.ca" <angus@...ea.ca>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "l.stach@...gutronix.de" <l.stach@...gutronix.de>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Peng Fan <peng.fan@....com>
Subject: [PATCH] arm64: dts: imx8mq: fix gpu clock

From: Peng Fan <peng.fan@....com>

v2 of "clk: imx: imx8mq: use imx8m_clk_hw_composite_core" dropped
the IMX8MQ_CLK_GPU_CORE_SRC and IMX8MQ_CLK_GPU_SHADER_SRC, so
the clk pointer will be NULL. clk_set_parent will direclty return
0 when set parent. So let use IMX8MQ_CLK_GPU_CORE_DIV and
IMX8MQ_CLK_GPU_SHADER_DIV which is supported by clk driver.

Reported-by: Leonard Crestez <leonard.crestez@....com>
Signed-off-by: Peng Fan <peng.fan@....com>
---
 arch/arm64/boot/dts/freescale/imx8mq.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
index 6a1e83922c71..9481d5270949 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
@@ -1051,8 +1051,8 @@
 			         <&clk IMX8MQ_CLK_GPU_AHB>;
 			clock-names = "core", "shader", "bus", "reg";
 			#cooling-cells = <2>;
-			assigned-clocks = <&clk IMX8MQ_CLK_GPU_CORE_SRC>,
-			                  <&clk IMX8MQ_CLK_GPU_SHADER_SRC>,
+			assigned-clocks = <&clk IMX8MQ_CLK_GPU_CORE_DIV>,
+					  <&clk IMX8MQ_CLK_GPU_SHADER_DIV>,
 			                  <&clk IMX8MQ_CLK_GPU_AXI>,
 			                  <&clk IMX8MQ_CLK_GPU_AHB>,
 			                  <&clk IMX8MQ_GPU_PLL_BYPASS>;
-- 
2.16.4