[PATCH 5.14 015/151] drm/amd/display: Limit display scaling to up to 4k for DCN 3.1
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-10-11 13:59:43
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From: Nikola Cornij <redacted> commit a7e397b7c45377e20542146be10231b8afa948d1 upstream. [why] The existing limit was mistakenly bigger than 4k for DCN 3.1 Reviewed-by: Zhan Liu <redacted> Acked-by: Solomon Chiu <redacted> Signed-off-by: Nikola Cornij <redacted> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c@@ -928,7 +928,7 @@ static const struct dc_debug_options deb .disable_dcc = DCC_ENABLE, .vsr_support = true, .performance_trace = false, - .max_downscale_src_width = 7680,/*upto 8K*/ + .max_downscale_src_width = 3840,/*upto 4K*/ .disable_pplib_wm_range = false, .scl_reset_length10 = true, .sanity_checks = false,