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| author | Jake Wang <haonan.wang2@amd.com> | 2021-04-23 16:42:35 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-05-27 12:24:03 -0400 |
| commit | 6e568e438b4d4e9754bdf361a91e0a774ca082ed (patch) | |
| tree | 22590adb73f5ab7a885759d9b4ef1c5f29c3dcd2 /drivers/gpu/drm/amd/display/dc | |
| parent | 05adfd80cc52e0b4581e65bb5418de5dfd24d105 (diff) | |
| download | linux-6e568e438b4d4e9754bdf361a91e0a774ca082ed.tar.gz linux-6e568e438b4d4e9754bdf361a91e0a774ca082ed.tar.bz2 linux-6e568e438b4d4e9754bdf361a91e0a774ca082ed.zip | |
drm/amd/display: Added support for individual control for multiple back-light instances.
[Why & How]
Added support for individual control for multiple back-light instances.
Signed-off-by: Jake Wang <haonan.wang2@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_link.h | 17 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/hw/abm.h | 3 |
3 files changed, 22 insertions, 8 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h index c871923e7db0..c617e9ae68a3 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -216,6 +216,23 @@ static inline void get_edp_links(const struct dc *dc, } } +static inline bool dc_get_edp_link_panel_inst(const struct dc *dc, + const struct dc_link *link, + unsigned int *inst_out) +{ + struct dc_link *edp_links[MAX_NUM_EDP]; + int edp_num; + + if (link->connector_signal != SIGNAL_TYPE_EDP) + return false; + get_edp_links(dc, edp_links, &edp_num); + if ((edp_num > 1) && (link->link_index > edp_links[0]->link_index)) + *inst_out = 1; + else + *inst_out = 0; + return true; +} + /* 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. diff --git a/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c b/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c index 6939ca2e8212..54a1408c8015 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c @@ -172,16 +172,12 @@ static bool dmub_abm_set_level(struct abm *abm, uint32_t level) static bool dmub_abm_init_config(struct abm *abm, const char *src, - unsigned int bytes) + unsigned int bytes, + unsigned int inst) { union dmub_rb_cmd cmd; struct dc_context *dc = abm->ctx; - uint32_t edp_id_count = dc->dc_edp_id_count; - int i; - uint8_t panel_mask = 0; - - for (i = 0; i < edp_id_count; i++) - panel_mask |= 0x01 << i; + uint8_t panel_mask = 0x01 << inst; // TODO: Optimize by only reading back final 4 bytes dmub_flush_buffer_mem(&dc->dmub_srv->dmub->scratch_mem_fb); diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/abm.h b/drivers/gpu/drm/amd/display/dc/inc/hw/abm.h index e8ce8c85adf1..142753644377 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/abm.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/abm.h @@ -52,7 +52,8 @@ struct abm_funcs { unsigned int (*get_target_backlight)(struct abm *abm); bool (*init_abm_config)(struct abm *abm, const char *src, - unsigned int bytes); + unsigned int bytes, + unsigned int inst); }; #endif |