diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2025-03-14 17:01:34 +0200 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2025-06-14 11:15:36 +0300 |
| commit | 7b3685c9b38c3097f465efec8b24dbed63258cf6 (patch) | |
| tree | 7214c6e627385f56f7415d641224beb6cd4fed92 /drivers | |
| parent | ed3648b9ec4c040d5eebc9e4b8b9083a68628022 (diff) | |
drm/i915/dsi: Fix off by one in BXT_MIPI_TRANS_VTOTAL
BXT_MIPI_TRANS_VTOTAL must be programmed with vtotal-1
instead of vtotal. Make it so.
Cc: stable@vger.kernel.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250314150136.22564-1-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/display/vlv_dsi.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/vlv_dsi.c b/drivers/gpu/drm/i915/display/vlv_dsi.c index 2ec78dc8765e..160c40596685 100644 --- a/drivers/gpu/drm/i915/display/vlv_dsi.c +++ b/drivers/gpu/drm/i915/display/vlv_dsi.c @@ -1055,7 +1055,7 @@ static void bxt_dsi_get_pipe_config(struct intel_encoder *encoder, BXT_MIPI_TRANS_VACTIVE(port)); adjusted_mode->crtc_vtotal = intel_de_read(display, - BXT_MIPI_TRANS_VTOTAL(port)); + BXT_MIPI_TRANS_VTOTAL(port)) + 1; hactive = adjusted_mode->crtc_hdisplay; hfp = intel_de_read(display, MIPI_HFP_COUNT(display, port)); @@ -1259,7 +1259,7 @@ static void set_dsi_timings(struct intel_encoder *encoder, intel_de_write(display, BXT_MIPI_TRANS_VACTIVE(port), adjusted_mode->crtc_vdisplay); intel_de_write(display, BXT_MIPI_TRANS_VTOTAL(port), - adjusted_mode->crtc_vtotal); + adjusted_mode->crtc_vtotal - 1); } intel_de_write(display, MIPI_HACTIVE_AREA_COUNT(display, port), |