diff options
| author | Suraj Kandpal <suraj.kandpal@intel.com> | 2025-06-20 12:04:34 +0530 |
|---|---|---|
| committer | Suraj Kandpal <suraj.kandpal@intel.com> | 2025-06-30 20:41:38 +0530 |
| commit | c802a6b81b704bd969946f04f206a881f1abe2dd (patch) | |
| tree | a35fb7b86510ab5cb92d07ee65800ca70dc240f1 /drivers/gpu/drm/display | |
| parent | 2af612ad42903637b11f9ddf4101f231f1ec5d1d (diff) | |
drm/dp: Add argument in drm_edp_backlight_init
Add bool argument in drm_edp_backlight init to provide the drivers
option to choose if they want to use luminance values to
manipulate brightness.
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://lore.kernel.org/r/20250620063445.3603086-3-suraj.kandpal@intel.com
Diffstat (limited to 'drivers/gpu/drm/display')
| -rw-r--r-- | drivers/gpu/drm/display/drm_dp_helper.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c index c63f482cdba7..6cbd15ff3a5c 100644 --- a/drivers/gpu/drm/display/drm_dp_helper.c +++ b/drivers/gpu/drm/display/drm_dp_helper.c @@ -4239,6 +4239,7 @@ drm_edp_backlight_probe_state(struct drm_dp_aux *aux, struct drm_edp_backlight_i * @edp_dpcd: A cached copy of the eDP DPCD * @current_level: Where to store the probed brightness level, if any * @current_mode: Where to store the currently set backlight control mode + * @need_luminance: Tells us if a we want to manipulate backlight using luminance values * * Initializes a &drm_edp_backlight_info struct by probing @aux for it's backlight capabilities, * along with also probing the current and maximum supported brightness levels. @@ -4251,7 +4252,7 @@ drm_edp_backlight_probe_state(struct drm_dp_aux *aux, struct drm_edp_backlight_i int drm_edp_backlight_init(struct drm_dp_aux *aux, struct drm_edp_backlight_info *bl, u16 driver_pwm_freq_hz, const u8 edp_dpcd[EDP_DISPLAY_CTL_CAP_SIZE], - u16 *current_level, u8 *current_mode) + u16 *current_level, u8 *current_mode, bool need_luminance) { int ret; @@ -4262,7 +4263,7 @@ drm_edp_backlight_init(struct drm_dp_aux *aux, struct drm_edp_backlight_info *bl if (edp_dpcd[2] & DP_EDP_BACKLIGHT_BRIGHTNESS_BYTE_COUNT) bl->lsb_reg_used = true; if ((edp_dpcd[0] & DP_EDP_15) && edp_dpcd[3] & - (DP_EDP_PANEL_LUMINANCE_CONTROL_CAPABLE)) + (DP_EDP_PANEL_LUMINANCE_CONTROL_CAPABLE) && need_luminance) bl->luminance_set = true; /* Sanity check caps */ @@ -4380,7 +4381,7 @@ int drm_panel_dp_aux_backlight(struct drm_panel *panel, struct drm_dp_aux *aux) bl->aux = aux; ret = drm_edp_backlight_init(aux, &bl->info, 0, edp_dpcd, - ¤t_level, ¤t_mode); + ¤t_level, ¤t_mode, false); if (ret < 0) return ret; |