diff options
| author | Ankit Nautiyal <ankit.k.nautiyal@intel.com> | 2026-04-30 18:42:16 +0530 |
|---|---|---|
| committer | Ankit Nautiyal <ankit.k.nautiyal@intel.com> | 2026-05-11 09:50:53 +0530 |
| commit | dae483da59657eba80efa0437b72f14d221e1f03 (patch) | |
| tree | 8706a6d4446503b0e9a06a7dc6bf693cfba63e48 /drivers/gpu | |
| parent | 0161e2c2016337a2f22ef79dff0aee43c0841bce (diff) | |
drm/i915/intel_sdvo: Check fixed_mode->clock against max_dotclock in mode_valid
For LVDS SDVO, mode validation checks the requested mode against the
pipe max dotclock, but does not validate the selected fixed mode clock.
After intel_panel_mode_valid(), get the fixed mode and validate its
clock against the max dotclock.
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260430131220.3891497-2-ankit.k.nautiyal@intel.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_sdvo.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_sdvo.c b/drivers/gpu/drm/i915/display/intel_sdvo.c index 2e1af9e869de..e7aaa5b203fd 100644 --- a/drivers/gpu/drm/i915/display/intel_sdvo.c +++ b/drivers/gpu/drm/i915/display/intel_sdvo.c @@ -1967,10 +1967,16 @@ intel_sdvo_mode_valid(struct drm_connector *connector, if (IS_LVDS(intel_sdvo_connector)) { enum drm_mode_status status; + const struct drm_display_mode *fixed_mode; status = intel_panel_mode_valid(&intel_sdvo_connector->base, mode); if (status != MODE_OK) return status; + + fixed_mode = intel_panel_fixed_mode(&intel_sdvo_connector->base, mode); + + if (fixed_mode && fixed_mode->clock > max_dotclk) + return MODE_CLOCK_HIGH; } return MODE_OK; |