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[13/15] drm/i915: Use & instead if == to check for rotations

Message ID 1469194996-1899-14-git-send-email-ville.syrjala@linux.intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Ville Syrjala July 22, 2016, 1:43 p.m. UTC 
From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Using == to check for 180 degree rotation only works as long as the
reflection bits aren't set. That will change soon enough for CHV, so
let's stop doing things the wrong way.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 9 +++++----
 drivers/gpu/drm/i915/intel_sprite.c  | 6 +++---
 2 files changed, 8 insertions(+), 7 deletions(-)
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index a6d5c4d434a4..5f36040eb96b 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2688,7 +2688,7 @@  static void i9xx_update_primary_plane(struct drm_plane *primary,
 		intel_crtc->dspaddr_offset = linear_offset;
 	}
 
-	if (rotation == BIT(DRM_ROTATE_180)) {
+	if (rotation & BIT(DRM_ROTATE_180)) {
 		dspcntr |= DISPPLANE_ROTATE_180;
 
 		x += (crtc_state->pipe_src_w - 1);
@@ -2791,7 +2791,8 @@  static void ironlake_update_primary_plane(struct drm_plane *primary,
 		intel_compute_tile_offset(&x, &y, fb, 0,
 					  fb->pitches[0], rotation);
 	linear_offset -= intel_crtc->dspaddr_offset;
-	if (rotation == BIT(DRM_ROTATE_180)) {
+
+	if (rotation & BIT(DRM_ROTATE_180)) {
 		dspcntr |= DISPPLANE_ROTATE_180;
 
 		if (!IS_HASWELL(dev) && !IS_BROADWELL(dev)) {
@@ -10263,7 +10264,7 @@  static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base,
 		if (HAS_DDI(dev))
 			cntl |= CURSOR_PIPE_CSC_ENABLE;
 
-		if (plane_state->base.rotation == BIT(DRM_ROTATE_180))
+		if (plane_state->base.rotation & BIT(DRM_ROTATE_180))
 			cntl |= CURSOR_ROTATE_180;
 	}
 
@@ -10309,7 +10310,7 @@  static void intel_crtc_update_cursor(struct drm_crtc *crtc,
 
 		/* ILK+ do this automagically */
 		if (HAS_GMCH_DISPLAY(dev) &&
-		    plane_state->base.rotation == BIT(DRM_ROTATE_180)) {
+		    plane_state->base.rotation & BIT(DRM_ROTATE_180)) {
 			base += (plane_state->base.crtc_h *
 				 plane_state->base.crtc_w - 1) * 4;
 		}
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index a0395f8f3723..ccb894f39425 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -444,7 +444,7 @@  vlv_update_plane(struct drm_plane *dplane,
 						   fb->pitches[0], rotation);
 	linear_offset -= sprsurf_offset;
 
-	if (rotation == BIT(DRM_ROTATE_180)) {
+	if (rotation & BIT(DRM_ROTATE_180)) {
 		sprctl |= SP_ROTATE_180;
 
 		x += src_w;
@@ -577,7 +577,7 @@  ivb_update_plane(struct drm_plane *plane,
 						   fb->pitches[0], rotation);
 	linear_offset -= sprsurf_offset;
 
-	if (rotation == BIT(DRM_ROTATE_180)) {
+	if (rotation & BIT(DRM_ROTATE_180)) {
 		sprctl |= SPRITE_ROTATE_180;
 
 		/* HSW and BDW does this automagically in hardware */
@@ -714,7 +714,7 @@  ilk_update_plane(struct drm_plane *plane,
 						   fb->pitches[0], rotation);
 	linear_offset -= dvssurf_offset;
 
-	if (rotation == BIT(DRM_ROTATE_180)) {
+	if (rotation & BIT(DRM_ROTATE_180)) {
 		dvscntr |= DVS_ROTATE_180;
 
 		x += src_w;