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[PATCH 6/7] drm/mediatek: plane: Use FB's format's cpp to compute x offset

From Bibby Hsieh <bibby.hsieh@mediatek.com>
Newsgroups linux.kernel
Subject [PATCH 6/7] drm/mediatek: plane: Use FB's format's cpp to compute x offset
Date 2016-07-29 11:10 +0200
Message-ID <s0bXQ-2EU-33@gated-at.bofh.it> (permalink)
References <s0bXP-2EU-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Daniel Kurtz <djkurtz@chromium.org>

Use the framebuffer's format to compute its cpp, and use it when
calculating the address shift value.

Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_plane.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
index b3ddb20..c461a23 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
@@ -135,7 +135,7 @@ static void mtk_plane_atomic_update(struct drm_plane *plane,
 	pitch = fb->pitches[0];
 	format = fb->pixel_format;
 
-	addr += (plane->state->src.x1 >> 16) * 4;
+	addr += (plane->state->src.x1 >> 16) * drm_format_plane_cpp(format, 0);
 	addr += (plane->state->src.y1 >> 16) * pitch;
 
 	state->pending.enable = true;
-- 
1.7.9.5

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Thread

[PATCH 0/7] drm/mediatek: cleaning up and refine Bibby Hsieh <bibby.hsieh@mediatek.com> - 2016-07-29 11:10 +0200
  [PATCH 2/7] drm/mediatek: plane: Remove plane zpos/index Bibby Hsieh <bibby.hsieh@mediatek.com> - 2016-07-29 11:10 +0200
    Re: [PATCH 2/7] drm/mediatek: plane: Remove plane zpos/index CK Hu <ck.hu@mediatek.com> - 2016-07-29 12:20 +0200
  [PATCH 5/7] drm/mediatek: plane: Merge mtk_plane_enable into mtk_plane_atomic_update Bibby Hsieh <bibby.hsieh@mediatek.com> - 2016-07-29 11:10 +0200
    Re: [PATCH 5/7] drm/mediatek: plane: Merge mtk_plane_enable into mtk_plane_atomic_update Sean Paul <seanpaul@chromium.org> - 2016-08-02 19:10 +0200
      Re: [PATCH 5/7] drm/mediatek: plane: Merge mtk_plane_enable into  mtk_plane_atomic_update Bibby Hsieh <bibby.hsieh@mediatek.com> - 2016-08-03 03:40 +0200
    Re: [PATCH 5/7] drm/mediatek: plane: Merge mtk_plane_enable into mtk_plane_atomic_update Sean Paul <seanpaul@chromium.org> - 2016-08-02 19:40 +0200
  [PATCH 6/7] drm/mediatek: plane: Use FB's format's cpp to compute x offset Bibby Hsieh <bibby.hsieh@mediatek.com> - 2016-07-29 11:10 +0200
  [PATCH 4/7] drm/mediatek: Use drm_atomic destroy_state helpers Bibby Hsieh <bibby.hsieh@mediatek.com> - 2016-07-29 11:10 +0200
  Re: [PATCH 0/7] drm/mediatek: cleaning up and refine Sean Paul <seanpaul@chromium.org> - 2016-08-01 17:30 +0200

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