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drm/amd/display: display connected to dp-1 does not light up

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[why]
for vega, dp set_panel_mode is
handled by psp firmware. dal should not program the
register again.

[how]
dal does not program panel mode.

Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Hersen Wu 2018-07-27 14:52:37 -04:00 committed by Alex Deucher
parent 81aca8e75c
commit 1e1dbd6fd1
3 changed files with 7 additions and 0 deletions
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1
drivers/gpu/drm/amd/display/dc/dc.h
View File

@ -79,6 +79,7 @@ struct dc_caps {
bool post_blend_color_processing;
bool force_dp_tps4_for_cp2520;
bool disable_dp_clk_share;
bool psp_setup_panel_mode;
};
struct dc_dcc_surface_param {

5
drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c
View File

@ -256,6 +256,11 @@ static void setup_panel_mode(
enum dp_panel_mode panel_mode)
{
uint32_t value;
struct dc_context *ctx = enc110->base.ctx;
/* if psp set panel mode, dal should be program it */
if (ctx->dc->caps.psp_setup_panel_mode)
return;
ASSERT(REG(DP_DPHY_INTERNAL_CTRL));
value = REG_READ(DP_DPHY_INTERNAL_CTRL);

1
drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c
View File

@ -883,6 +883,7 @@ static bool construct(
dc->caps.i2c_speed_in_khz = 100;
dc->caps.max_cursor_size = 128;
dc->caps.dual_link_dvi = true;
dc->caps.psp_setup_panel_mode = true;
dc->debug = debug_defaults;