diff options
author | Eric Yang <Eric.Yang2@amd.com> | 2019-09-06 18:26:23 -0400 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2019-10-10 19:33:07 -0500 |
commit | ab4a4072f260162284c15789329522a6773023ed (patch) | |
tree | be4c1538300bdb74d9a8f9c9c71e2b7fd9cdb4a2 /drivers/gpu/drm/amd/display/dc/dc_link.h | |
parent | drm/amd/display: Program DWB watermarks from correct state (diff) | |
download | linux-dev-ab4a4072f260162284c15789329522a6773023ed.tar.xz linux-dev-ab4a4072f260162284c15789329522a6773023ed.zip |
drm/amd/display: exit PSR during detection
[Why]
If 48mhz refclk is turned off during PSR, we will have issue doing
link training during detection.
[How]
Get out of PSR before detection
Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_link.h')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_link.h | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h index 45e6195c5395..f24fd19ed93d 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -126,7 +126,8 @@ struct dc_link { unsigned short chip_caps; unsigned int dpcd_sink_count; enum edp_revision edp_revision; - bool psr_enabled; + bool psr_feature_enabled; + bool psr_allow_active; /* MST record stream using this link */ struct link_flags { @@ -158,6 +159,18 @@ static inline struct dc_link *dc_get_link_at_index(struct dc *dc, uint32_t link_ return dc->links[link_index]; } +static inline struct dc_link *get_edp_link(const struct dc *dc) +{ + int i; + + // report any eDP links, even unconnected DDI's + for (i = 0; i < dc->link_count; i++) { + if (dc->links[i]->connector_signal == SIGNAL_TYPE_EDP) + return dc->links[i]; + } + return NULL; +} + /* Set backlight level of an embedded panel (eDP, LVDS). * backlight_pwm_u16_16 is unsigned 32 bit with 16 bit integer * and 16 bit fractional, where 1.0 is max backlight value. @@ -170,7 +183,7 @@ int dc_link_get_backlight_level(const struct dc_link *dc_link); bool dc_link_set_abm_disable(const struct dc_link *dc_link); -bool dc_link_set_psr_enable(const struct dc_link *dc_link, bool enable, bool wait); +bool dc_link_set_psr_allow_active(struct dc_link *dc_link, bool enable, bool wait); bool dc_link_get_psr_state(const struct dc_link *dc_link, uint32_t *psr_state); |