diff options
| author | Wesley Chalmers <Wesley.Chalmers@amd.com> | 2021-07-19 13:13:33 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-08-05 21:17:58 -0400 |
| commit | ba18f2350e494e964de075658a1591c08e1f4a88 (patch) | |
| tree | 3392b4ae245ef7916a62d1f411d942bc6f7faf9e /drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | |
| parent | 4fb930715468442360f9d8740a65592bfbeb9c24 (diff) | |
drm/amd/display: Assume LTTPR interop for DCN31+
[WHY]
For DCN31 onward, LTTPR is to be enabled and set to Transparent by
VBIOS. Driver is to assume that VBIOS has done this without needing to
check the VBIOS interop bit.
[HOW]
Add LTTPR enable and interop VBIOS bits into dc->caps, and force-set the
interop bit to true for DCN31+.
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 21 |
1 files changed, 2 insertions, 19 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c index f56e061d35bc..cd025c12f17b 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c @@ -3595,29 +3595,12 @@ static bool dpcd_read_sink_ext_caps(struct dc_link *link) bool dp_retrieve_lttpr_cap(struct dc_link *link) { uint8_t lttpr_dpcd_data[6]; - bool vbios_lttpr_enable = false; - bool vbios_lttpr_interop = false; - struct dc_bios *bios = link->dc->ctx->dc_bios; + bool vbios_lttpr_enable = link->dc->caps.vbios_lttpr_enable; + bool vbios_lttpr_interop = link->dc->caps.vbios_lttpr_aware; enum dc_status status = DC_ERROR_UNEXPECTED; bool is_lttpr_present = false; memset(lttpr_dpcd_data, '\0', sizeof(lttpr_dpcd_data)); - /* Query BIOS to determine if LTTPR functionality is forced on by system */ - if (bios->funcs->get_lttpr_caps) { - enum bp_result bp_query_result; - uint8_t is_vbios_lttpr_enable = 0; - - bp_query_result = bios->funcs->get_lttpr_caps(bios, &is_vbios_lttpr_enable); - vbios_lttpr_enable = (bp_query_result == BP_RESULT_OK) && !!is_vbios_lttpr_enable; - } - - if (bios->funcs->get_lttpr_interop) { - enum bp_result bp_query_result; - uint8_t is_vbios_interop_enabled = 0; - - bp_query_result = bios->funcs->get_lttpr_interop(bios, &is_vbios_interop_enabled); - vbios_lttpr_interop = (bp_query_result == BP_RESULT_OK) && !!is_vbios_interop_enabled; - } /* * Logic to determine LTTPR mode |