The patch below does not apply to the 5.18-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 235870f659687b48b12c28f9427e6ca39dcaa81e Mon Sep 17 00:00:00 2001 From: Qingqing Zhuo qingqing.zhuo@amd.com Date: Fri, 10 Jun 2022 10:43:53 -0400 Subject: [PATCH] drm/amd/display: Fix DC warning at driver load
[Why] Wrong index was checked for dcfclk_mhz, causing false warning.
[How] Fix the assertion index.
Tested-by: Daniel Wheeler daniel.wheeler@amd.com Reviewed-by: Dmytro Laktyushkin Dmytro.Laktyushkin@amd.com Acked-by: Rodrigo Siqueira Rodrigo.Siqueira@amd.com Signed-off-by: Qingqing Zhuo qingqing.zhuo@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org # 5.18.x
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c index fb4ae800e919..f4381725b210 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c @@ -550,7 +550,7 @@ static void dcn315_clk_mgr_helper_populate_bw_params( if (!bw_params->clk_table.entries[i].dtbclk_mhz) bw_params->clk_table.entries[i].dtbclk_mhz = def_max.dtbclk_mhz; } - ASSERT(bw_params->clk_table.entries[i].dcfclk_mhz); + ASSERT(bw_params->clk_table.entries[i-1].dcfclk_mhz); bw_params->vram_type = bios_info->memory_type; bw_params->num_channels = bios_info->ma_channel_number; if (!bw_params->num_channels)