diff options
| author | Suraj Kandpal <suraj.kandpal@intel.com> | 2025-06-20 12:04:36 +0530 |
|---|---|---|
| committer | Suraj Kandpal <suraj.kandpal@intel.com> | 2025-06-30 20:41:41 +0530 |
| commit | 08e81e2ded98d726db0dba39030ef59eb49d762c (patch) | |
| tree | 96e40070e09a1fcd95c8dac5b9a5cc38d9be37cc | |
| parent | 81fd01414f259ff897054c50750a25cbb0255060 (diff) | |
drm/dp: Move from u16 to u32 for max in drm_edp_backlight_info
Use u32 instead of u16 for max variable in drm_edp_backlight_info
since it can now hold max luminance range value which is u32.
We will set this max with max_luminance value when luminance_set is
true.
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/20250620063445.3603086-5-suraj.kandpal@intel.com
| -rw-r--r-- | drivers/gpu/drm/display/drm_dp_helper.c | 10 | ||||
| -rw-r--r-- | include/drm/display/drm_dp_helper.h | 2 |
2 files changed, 8 insertions, 4 deletions
diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c index 640bf2fe0908..ecbef8a1bf8e 100644 --- a/drivers/gpu/drm/display/drm_dp_helper.c +++ b/drivers/gpu/drm/display/drm_dp_helper.c @@ -4277,9 +4277,13 @@ drm_edp_backlight_init(struct drm_dp_aux *aux, struct drm_edp_backlight_info *bl return -EINVAL; } - ret = drm_edp_backlight_probe_max(aux, bl, driver_pwm_freq_hz, edp_dpcd); - if (ret < 0) - return ret; + if (bl->luminance_set) { + bl->max = max_luminance; + } else { + ret = drm_edp_backlight_probe_max(aux, bl, driver_pwm_freq_hz, edp_dpcd); + if (ret < 0) + return ret; + } ret = drm_edp_backlight_probe_state(aux, bl, current_mode); if (ret < 0) diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h index 0575418f0eb3..cf0706762902 100644 --- a/include/drm/display/drm_dp_helper.h +++ b/include/drm/display/drm_dp_helper.h @@ -844,7 +844,7 @@ drm_dp_has_quirk(const struct drm_dp_desc *desc, enum drm_dp_quirk quirk) struct drm_edp_backlight_info { u8 pwmgen_bit_count; u8 pwm_freq_pre_divider; - u16 max; + u32 max; bool lsb_reg_used : 1; bool aux_enable : 1; |