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[ Upstream commitc2df75ad2a] Amlogic SoC devices report the following errors frequently causing excessive dmesg log spam and early log rotataion, although the errors appear to be harmless as everything works fine: [ 7.202702] panfrost ffe40000.gpu: error powering up gpu L2 [ 7.203760] panfrost ffe40000.gpu: error powering up gpu shader ARM staff have advised increasing the timeout values to eliminate the errors in most normal scenarios, and testing with several different G31/G52 devices shows 20000 to be a reliable value. Fixes:f3ba91228e("drm/panfrost: Add initial panfrost driver") Suggested-by: Steven Price <steven.price@arm.com> Signed-off-by: Christian Hewitt <christianshewitt@gmail.com> Reviewed-by: Steven Price <steven.price@arm.com> Signed-off-by: Steven Price <steven.price@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201008141738.13560-1-christianshewitt@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.org>