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drm/amd/display: Introduce New ABC Framework for Brightness Control

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Adjust the existing brightness control functions to use the new
ABC Framework and prioritize Aux-based brightness control.

Reviewed-by: Anthony Koo <anthony.koo@amd.com>
Signed-off-by: Muyuan Yang <muyuan.yang@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Muyuan Yang 2024-07-18 14:03:18 -04:00 committed by Alex Deucher
parent e1b58b2b11
commit 70d98a2038
1 changed files with 19 additions and 21 deletions
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40
drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c
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@ -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;