From: Muyuan Yang <[email protected]> Adjust the existing brightness control functions to use the new ABC Framework and prioritize Aux-based brightness control.
Reviewed-by: Anthony Koo <[email protected]> Signed-off-by: Muyuan Yang <[email protected]> Signed-off-by: Fangzhi Zuo <[email protected]> --- .../link/protocols/link_edp_panel_control.c | 40 +++++++++---------- 1 file changed, 19 insertions(+), 21 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c index 070b6c8c1aef..7680bc8845d4 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c @@ -157,31 +157,11 @@ bool edp_set_backlight_level_nits(struct dc_link *link, uint32_t backlight_millinits, uint32_t transition_time_in_ms) { - struct dpcd_source_backlight_set dpcd_backlight_set; - uint8_t backlight_control = isHDR ? 1 : 0; - if (!link || (link->connector_signal != SIGNAL_TYPE_EDP && link->connector_signal != SIGNAL_TYPE_DISPLAY_PORT)) return false; - // OLEDs have no PWM, they can only use AUX - if (link->dpcd_sink_ext_caps.bits.oled == 1) - backlight_control = 1; - - *(uint32_t *)&dpcd_backlight_set.backlight_level_millinits = backlight_millinits; - *(uint16_t *)&dpcd_backlight_set.backlight_transition_time_ms = (uint16_t)transition_time_in_ms; - - - if (!link->dpcd_caps.panel_luminance_control) { - if (core_link_write_dpcd(link, DP_SOURCE_BACKLIGHT_LEVEL, - (uint8_t *)(&dpcd_backlight_set), - sizeof(dpcd_backlight_set)) != DC_OK) - return false; - - if (core_link_write_dpcd(link, DP_SOURCE_BACKLIGHT_CONTROL, - &backlight_control, 1) != DC_OK) - return false; - } else { + if (link->backlight_control_type == BACKLIGHT_CONTROL_VESA_AUX) { uint8_t backlight_enable = 0; struct target_luminance_value *target_luminance = NULL; @@ -205,6 +185,24 @@ bool edp_set_backlight_level_nits(struct dc_link *link, (uint8_t *)(target_luminance), sizeof(struct target_luminance_value)) != DC_OK) return false; + } else { + struct dpcd_source_backlight_set dpcd_backlight_set; + *(uint32_t *)&dpcd_backlight_set.backlight_level_millinits = backlight_millinits; + *(uint16_t *)&dpcd_backlight_set.backlight_transition_time_ms = (uint16_t)transition_time_in_ms; + + uint8_t backlight_control = isHDR ? 1 : 0; + // OLEDs have no PWM, they can only use AUX + if (link->dpcd_sink_ext_caps.bits.oled == 1) + backlight_control = 1; + + if (core_link_write_dpcd(link, DP_SOURCE_BACKLIGHT_LEVEL, + (uint8_t *)(&dpcd_backlight_set), + sizeof(dpcd_backlight_set)) != DC_OK) + return false; + + if (core_link_write_dpcd(link, DP_SOURCE_BACKLIGHT_CONTROL, + &backlight_control, 1) != DC_OK) + return false; } return true; -- 2.34.1
