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authorDave Airlie <airlied@redhat.com>2026-04-17 03:25:46 +0300
committerDave Airlie <airlied@redhat.com>2026-04-17 03:25:47 +0300
commit19785999991deef010ff09ab5f460d31808b31a7 (patch)
tree95112c61c7e2e9369e1be903c2b22af8f2b387d3 /drivers
parent993eb191400f5d06322989ea7c890fd11965f80b (diff)
parenta97c88a176b6b8d116f4d3f508f3bd02bc77b462 (diff)
downloadlinux-19785999991deef010ff09ab5f460d31808b31a7.tar.xz
Merge tag 'drm-intel-next-fixes-2026-04-16' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-next
- Fix VESA backlight possible check condition [backlight] (Suraj Kandpal) - Verify the correct plane DDB entry [wm] (Ville Syrjälä) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Tvrtko Ursulin <tursulin@igalia.com> Link: https://patch.msgid.link/aeCGoL4FFwT66bF4@linux
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c9
-rw-r--r--drivers/gpu/drm/i915/display/skl_watermark.c4
2 files changed, 9 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
index d0c76632a946..a8d56ebf06a2 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
@@ -615,8 +615,13 @@ check_if_vesa_backlight_possible(struct intel_dp *intel_dp)
int ret;
u8 bit_min, bit_max;
- if (!(intel_dp->edp_dpcd[2] & DP_EDP_BACKLIGHT_BRIGHTNESS_AUX_SET_CAP))
- return true;
+ /*
+ * Since we only support Fully AUX Based VESA Backlight interface make sure
+ * backlight enable is possible via AUX along with backlight adjustment
+ */
+ if (!(intel_dp->edp_dpcd[1] & DP_EDP_BACKLIGHT_AUX_ENABLE_CAP &&
+ intel_dp->edp_dpcd[2] & DP_EDP_BACKLIGHT_BRIGHTNESS_AUX_SET_CAP))
+ return false;
ret = drm_dp_dpcd_read_byte(&intel_dp->aux, DP_EDP_PWMGEN_BIT_COUNT_CAP_MIN, &bit_min);
if (ret < 0)
diff --git a/drivers/gpu/drm/i915/display/skl_watermark.c b/drivers/gpu/drm/i915/display/skl_watermark.c
index d45b3bcc6ef0..e0ac4e2ce4dc 100644
--- a/drivers/gpu/drm/i915/display/skl_watermark.c
+++ b/drivers/gpu/drm/i915/display/skl_watermark.c
@@ -4028,8 +4028,8 @@ void intel_wm_state_verify(struct intel_atomic_state *state,
}
/* DDB */
- hw_ddb_entry = &hw->ddb[PLANE_CURSOR];
- sw_ddb_entry = &new_crtc_state->wm.skl.plane_ddb[PLANE_CURSOR];
+ hw_ddb_entry = &hw->ddb[plane->id];
+ sw_ddb_entry = &new_crtc_state->wm.skl.plane_ddb[plane->id];
if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) {
drm_err(display->drm,