[Intel-gfx] [PATCH 3/3] drm/i915: Move WaPruneModeWithIncorrectHsyncOffset into intel_mode_valid()

[Ville Syrjala]

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

Check for the zero length front porch already in intel_mode_valid()
so that we get the same validation for both get_modes() and setcrtc()/etc.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 9ede0c5fbc44..2b76ec6ad5d2 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -4208,13 +4208,6 @@ static int intel_crtc_compute_config(struct intel_crtc *crtc,
 		}
 	}
 
-	/* Cantiga+ cannot handle modes with a hsync front porch of 0.
-	 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
-	 */
-	if ((DISPLAY_VER(dev_priv) > 4 || IS_G4X(dev_priv)) &&
-	    pipe_mode->crtc_hsync_start == pipe_mode->crtc_hdisplay)
-		return -EINVAL;
-
 	intel_crtc_compute_pixel_rate(pipe_config);
 
 	if (pipe_config->has_pch_encoder)
@@ -11323,6 +11316,14 @@ intel_mode_valid(struct drm_device *dev,
 			return MODE_V_ILLEGAL;
 	}
 
+	/*
+	 * Cantiga+ cannot handle modes with a hsync front porch of 0.
+	 * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw.
+	 */
+	if ((DISPLAY_VER(dev_priv) > 4 || IS_G4X(dev_priv)) &&
+	    mode->hsync_start == mode->hdisplay)
+		return MODE_H_ILLEGAL;
+
 	return MODE_OK;
 }
 
-- 
2.32.0