From 61348fe9e75b7edb25b26ce789a9aec617b20090 Mon Sep 17 00:00:00 2001 From: AngeloGioacchino Del Regno Date: Wed, 1 Mar 2023 10:55:12 +0100 Subject: [PATCH] arm64: dts: mediatek: mt8192: Add mfg_ref_sel clock to MFG0 domain The mfg_ref_sel clock is a mux used to switch between different "safe" (and slower) clock sources for the GPU: this is used during MFGPLL reconfiguration and eventually during idling at very low frequencies. This clock getting turned off means that the GPU will occasionally be unclocked, producing obvious consequences such as system crash or unpredictable behavior: assigning it to the top level MFG power domain will make sure that this stays on at all times during any operation on the MFG domain (only GPU-related transactions). Signed-off-by: AngeloGioacchino Del Regno Reviewed-by: Chen-Yu Tsai Tested-by: Chen-Yu Tsai Link: https://lore.kernel.org/r/20230301095523.428461-9-angelogioacchino.delregno@collabora.com Signed-off-by: Matthias Brugger --- arch/arm64/boot/dts/mediatek/mt8192.dtsi | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi index 34631ad..a29cdff 100644 --- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi @@ -499,8 +499,9 @@ power-domain@MT8192_POWER_DOMAIN_MFG0 { reg = ; - clocks = <&topckgen CLK_TOP_MFG_PLL_SEL>; - clock-names = "mfg"; + clocks = <&topckgen CLK_TOP_MFG_PLL_SEL>, + <&topckgen CLK_TOP_MFG_REF_SEL>; + clock-names = "mfg", "alt"; #address-cells = <1>; #size-cells = <0>; #power-domain-cells = <1>; -- 2.7.4