diff options
Diffstat (limited to '0039-drm-amd-display-Fix-HDMI-VSIF-V3-incorrect-issue.patch')
| -rw-r--r-- | 0039-drm-amd-display-Fix-HDMI-VSIF-V3-incorrect-issue.patch | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/0039-drm-amd-display-Fix-HDMI-VSIF-V3-incorrect-issue.patch b/0039-drm-amd-display-Fix-HDMI-VSIF-V3-incorrect-issue.patch new file mode 100644 index 000000000000..70d2f1797d54 --- /dev/null +++ b/0039-drm-amd-display-Fix-HDMI-VSIF-V3-incorrect-issue.patch @@ -0,0 +1,75 @@ +From 71f2cb739a3cbcda4612889ce660fd8c380e3e1d Mon Sep 17 00:00:00 2001 +From: Leo Ma <hanghong.ma@amd.com> +Date: Fri, 22 Jul 2022 13:42:58 -0400 +Subject: [PATCH 39/73] drm/amd/display: Fix HDMI VSIF V3 incorrect issue + +[ Upstream commit 0591183699fceeafb4c4141072d47775de83ecfb ] + +[Why] +Reported from customer the checksum in AMD VSIF V3 is incorrect and +causing blank screen issue. + +[How] +Fix the packet length issue on AMD HDMI VSIF V3. + +Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> +Acked-by: Tom Chung <chiahsuan.chung@amd.com> +Signed-off-by: Leo Ma <hanghong.ma@amd.com> +Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +Signed-off-by: Sasha Levin <sashal@kernel.org> +--- + .../drm/amd/display/modules/freesync/freesync.c | 15 +++------------ + 1 file changed, 3 insertions(+), 12 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c +index 03fa63d56fa6..948151e73573 100644 +--- a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c ++++ b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c +@@ -615,10 +615,6 @@ static void build_vrr_infopacket_data_v1(const struct mod_vrr_params *vrr, + * Note: We should never go above the field rate of the mode timing set. + */ + infopacket->sb[8] = (unsigned char)((vrr->max_refresh_in_uhz + 500000) / 1000000); +- +- /* FreeSync HDR */ +- infopacket->sb[9] = 0; +- infopacket->sb[10] = 0; + } + + static void build_vrr_infopacket_data_v3(const struct mod_vrr_params *vrr, +@@ -686,10 +682,6 @@ static void build_vrr_infopacket_data_v3(const struct mod_vrr_params *vrr, + + /* PB16 : Reserved bits 7:1, FixedRate bit 0 */ + infopacket->sb[16] = (vrr->state == VRR_STATE_ACTIVE_FIXED) ? 1 : 0; +- +- //FreeSync HDR +- infopacket->sb[9] = 0; +- infopacket->sb[10] = 0; + } + + static void build_vrr_infopacket_fs2_data(enum color_transfer_func app_tf, +@@ -774,8 +766,7 @@ static void build_vrr_infopacket_header_v2(enum signal_type signal, + /* HB2 = [Bits 7:5 = 0] [Bits 4:0 = Length = 0x09] */ + infopacket->hb2 = 0x09; + +- *payload_size = 0x0A; +- ++ *payload_size = 0x09; + } else if (dc_is_dp_signal(signal)) { + + /* HEADER */ +@@ -824,9 +815,9 @@ static void build_vrr_infopacket_header_v3(enum signal_type signal, + infopacket->hb1 = version; + + /* HB2 = [Bits 7:5 = 0] [Bits 4:0 = Length] */ +- *payload_size = 0x10; +- infopacket->hb2 = *payload_size - 1; //-1 for checksum ++ infopacket->hb2 = 0x10; + ++ *payload_size = 0x10; + } else if (dc_is_dp_signal(signal)) { + + /* HEADER */ +-- +2.37.3 + |