[PATCH 4/8] drm/i915: Warn if someone tries to use intel_set_transcoder_timings*() on DSI outputs

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

intel_set_transcoder_timings*() aren't currently suitable for DSI.
Warn if someone accidentally calls them in such cases.

Cc: Paz Zcharya <pazz at chromium.org>
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index ac6fc177099f..fa398d7d1baa 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -2837,6 +2837,8 @@ static void intel_set_transcoder_timings(const struct intel_crtc_state *crtc_sta
 	u32 crtc_vdisplay, crtc_vtotal, crtc_vblank_start, crtc_vblank_end;
 	int vsyncshift = 0;
 
+	drm_WARN_ON(&dev_priv->drm, transcoder_is_dsi(cpu_transcoder));
+
 	/* We need to be careful not to changed the adjusted mode, for otherwise
 	 * the hw state checker will get angry at the mismatch. */
 	crtc_vdisplay = adjusted_mode->crtc_vdisplay;
@@ -2918,6 +2920,8 @@ static void intel_set_transcoder_timings_lrr(const struct intel_crtc_state *crtc
 	const struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode;
 	u32 crtc_vdisplay, crtc_vtotal, crtc_vblank_start, crtc_vblank_end;
 
+	drm_WARN_ON(&dev_priv->drm, transcoder_is_dsi(cpu_transcoder));
+
 	crtc_vdisplay = adjusted_mode->crtc_vdisplay;
 	crtc_vtotal = adjusted_mode->crtc_vtotal;
 	crtc_vblank_start = adjusted_mode->crtc_vblank_start;
-- 
2.45.2