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authorLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>2013-11-13 17:26:01 +0400
committerLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>2013-12-02 04:27:26 +0400
commiteb86301f293da3c362db729a9f40ddb25755902b (patch)
treee91f19965d29feaf4564706688b42ad65730fb30 /drivers/gpu/drm/rcar-du
parentf5abcc4674c3aa9d745772bb3fd51db60c93161f (diff)
downloadlinux-eb86301f293da3c362db729a9f40ddb25755902b.tar.xz
drm/rcar-du: Update plane pitch in .mode_set_base() operation
When setting a new frame buffer with the mode set base operation the pitch value might change. Set the hardware plane pitch register at the same time as the plane base address in the rcar_du_plane_update_base() function to make sure the pitch value always matches the frame buffer. Cc: stable@vger.kernel.org Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Diffstat (limited to 'drivers/gpu/drm/rcar-du')
-rw-r--r--drivers/gpu/drm/rcar-du/rcar_du_crtc.c1
-rw-r--r--drivers/gpu/drm/rcar-du/rcar_du_plane.c21
2 files changed, 11 insertions, 11 deletions
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
index d2af2bcf3eae..fbf4be316d0b 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
@@ -371,7 +371,6 @@ static int rcar_du_crtc_mode_set(struct drm_crtc *crtc,
goto error;
rcrtc->plane->format = format;
- rcrtc->plane->pitch = crtc->fb->pitches[0];
rcrtc->plane->src_x = x;
rcrtc->plane->src_y = y;
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
index 53000644733f..3fb69d9ae61b 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_plane.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
@@ -104,6 +104,15 @@ void rcar_du_plane_update_base(struct rcar_du_plane *plane)
{
struct rcar_du_group *rgrp = plane->group;
unsigned int index = plane->hwindex;
+ u32 mwr;
+
+ /* Memory pitch (expressed in pixels) */
+ if (plane->format->planes == 2)
+ mwr = plane->pitch;
+ else
+ mwr = plane->pitch * 8 / plane->format->bpp;
+
+ rcar_du_plane_write(rgrp, index, PnMWR, mwr);
/* The Y position is expressed in raster line units and must be doubled
* for 32bpp formats, according to the R8A7790 datasheet. No mention of
@@ -133,6 +142,8 @@ void rcar_du_plane_compute_base(struct rcar_du_plane *plane,
{
struct drm_gem_cma_object *gem;
+ plane->pitch = fb->pitches[0];
+
gem = drm_fb_cma_get_gem_obj(fb, 0);
plane->dma[0] = gem->paddr + fb->offsets[0];
@@ -209,7 +220,6 @@ static void __rcar_du_plane_setup(struct rcar_du_plane *plane,
struct rcar_du_group *rgrp = plane->group;
u32 ddcr2 = PnDDCR2_CODE;
u32 ddcr4;
- u32 mwr;
/* Data format
*
@@ -240,14 +250,6 @@ static void __rcar_du_plane_setup(struct rcar_du_plane *plane,
rcar_du_plane_write(rgrp, index, PnDDCR2, ddcr2);
rcar_du_plane_write(rgrp, index, PnDDCR4, ddcr4);
- /* Memory pitch (expressed in pixels) */
- if (plane->format->planes == 2)
- mwr = plane->pitch;
- else
- mwr = plane->pitch * 8 / plane->format->bpp;
-
- rcar_du_plane_write(rgrp, index, PnMWR, mwr);
-
/* Destination position and size */
rcar_du_plane_write(rgrp, index, PnDSXR, plane->width);
rcar_du_plane_write(rgrp, index, PnDSYR, plane->height);
@@ -309,7 +311,6 @@ rcar_du_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
rplane->crtc = crtc;
rplane->format = format;
- rplane->pitch = fb->pitches[0];
rplane->src_x = src_x >> 16;
rplane->src_y = src_y >> 16;