arm64: dts: imx8mn: remove GPU power domain reset

The PGC (power gating controller) already handles the reset for the
GPUMIX power domain. By specifying it within the device tree the reset
it issued a 2nd time. This confuses the hardware during power up and
sporadically hangs the SoC. Fix this by removing the reset property and
let the hardware handle the reset.

Fixes: 9a0f3b157e22e ("arm64: dts: imx8mn: Enable GPU")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index 0c71b74..cb2836b 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
@@ -672,7 +672,6 @@
                                                         <&clk IMX8MN_CLK_GPU_SHADER>,
                                                         <&clk IMX8MN_CLK_GPU_BUS_ROOT>,
                                                         <&clk IMX8MN_CLK_GPU_AHB>;
-                                               resets = <&src IMX8MQ_RESET_GPU_RESET>;
                                        };
 
                                        pgc_dispmix: power-domain@3 {