From: Hamza Mahfooz Date: Fri, 20 Jan 2023 17:22:21 +0000 (-0500) Subject: drm/amd/display: use a more appropriate return value in dp_retrieve_lttpr_cap() X-Git-Tag: v6.3-rc1~135^2~14^2~37 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=31769ce9542de804f2cb7c6b9ef1c480345230f1;p=thirdparty%2Flinux.git drm/amd/display: use a more appropriate return value in dp_retrieve_lttpr_cap() Not all ASICs support LTTPR, however if they don't it doesn't mean that we have encountered unexpected behaviour. So, use DC_NOT_SUPPORTED instead of DC_ERROR_UNEXPECTED. Reviewed-by: Wenjing Liu Acked-by: Alex Deucher Signed-off-by: Hamza Mahfooz Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/display/dc/link/link_dp_capability.c b/drivers/gpu/drm/amd/display/dc/link/link_dp_capability.c index e72ad1b8330f8..21fd9275ae4c8 100644 --- a/drivers/gpu/drm/amd/display/dc/link/link_dp_capability.c +++ b/drivers/gpu/drm/amd/display/dc/link/link_dp_capability.c @@ -1462,7 +1462,7 @@ enum dc_status dp_retrieve_lttpr_cap(struct dc_link *link) bool vbios_lttpr_interop = link->dc->caps.vbios_lttpr_aware; if (!vbios_lttpr_interop || !link->dc->caps.extended_aux_timeout_support) - return DC_ERROR_UNEXPECTED; + return DC_NOT_SUPPORTED; /* By reading LTTPR capability, RX assumes that we will enable * LTTPR extended aux timeout if LTTPR is present.