linux-kernel - [PATCH 5/8] drm: mali-dp: Fix destination size handling when rotating

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Message-Id: <20170117162507.31961-6-Liviu.Dudau@arm.com>
Date:   Tue, 17 Jan 2017 16:25:04 +0000
From:   Liviu Dudau <Liviu.Dudau@....com>
To:     Brian Starkey <brian.starkey@....com>
Cc:     Mali DP Maintainers <malidp@...s.arm.com>,
        David Airlie <airlied@...ux.ie>,
        DRI devel <dri-devel@...ts.freedesktop.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 5/8] drm: mali-dp: Fix destination size handling when rotating

From: Brian Starkey <brian.starkey@....com>

The destination rectangle provided by userspace in the CRTC_X/Y/W/H
properties is already expressed as the dimensions after rotation.
This means we shouldn't swap the width and height ourselves when a
90/270 degree rotation is requested, so remove the code doing the swap.

Fixes: ad49f8602fe8 ("drm/arm: Add support for Mali Display Processors")

Signed-off-by: Brian Starkey <brian.starkey@....com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@....com>
---
 drivers/gpu/drm/arm/malidp_planes.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/malidp_planes.c
index 69eba71253c9..8c5ce36147f3 100644
--- a/drivers/gpu/drm/arm/malidp_planes.c
+++ b/drivers/gpu/drm/arm/malidp_planes.c
@@ -187,13 +187,8 @@ static void malidp_de_plane_update(struct drm_plane *plane,
 	/* convert src values from Q16 fixed point to integer */
 	src_w = plane->state->src_w >> 16;
 	src_h = plane->state->src_h >> 16;
-	if (plane->state->rotation & MALIDP_ROTATED_MASK) {
-		dest_w = plane->state->crtc_h;
-		dest_h = plane->state->crtc_w;
-	} else {
-		dest_w = plane->state->crtc_w;
-		dest_h = plane->state->crtc_h;
-	}
+	dest_w = plane->state->crtc_w;
+	dest_h = plane->state->crtc_h;
 
 	malidp_hw_write(mp->hwdev, ms->format, mp->layer->base);
 
-- 
2.11.0