This is a note to let you know that I've just added the patch titled
fbdev: sh_mobile_lcdc: Don't confuse line size with pitch
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
fbdev-sh_mobile_lcdc-don-t-confuse-line-size-with-pitch.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 72c04af9a2d57b7945cf3de8e71461bd80695d50 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <[email protected]>
Date: Fri, 18 May 2012 10:58:26 +0200
Subject: fbdev: sh_mobile_lcdc: Don't confuse line size with pitch
From: Laurent Pinchart <[email protected]>
commit 72c04af9a2d57b7945cf3de8e71461bd80695d50 upstream.
When using the MERAM the LCDC line size needs to be programmed with a
MERAM-specific value different than the real frame buffer pitch. Fix it.
Reported-by: Guennadi Liakhovetski <[email protected]>
Signed-off-by: Laurent Pinchart <[email protected]>
Acked-by: Florian Tobias Schandinat <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/video/sh_mobile_lcdcfb.c | 5 +++--
drivers/video/sh_mobile_lcdcfb.h | 1 +
2 files changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -758,7 +758,7 @@ static void __sh_mobile_lcdc_start(struc
}
lcdc_write_chan(ch, LDDFR, tmp);
- lcdc_write_chan(ch, LDMLSR, ch->pitch);
+ lcdc_write_chan(ch, LDMLSR, ch->line_size);
lcdc_write_chan(ch, LDSA1R, ch->base_addr_y);
if (ch->format->yuv)
lcdc_write_chan(ch, LDSA2R, ch->base_addr_c);
@@ -847,6 +847,7 @@ static int sh_mobile_lcdc_start(struct s
ch->base_addr_y = ch->dma_handle;
ch->base_addr_c = ch->base_addr_y + ch->xres * ch->yres_virtual;
+ ch->line_size = ch->pitch;
/* Enable MERAM if possible. */
if (mdev == NULL || mdev->ops == NULL ||
@@ -882,7 +883,7 @@ static int sh_mobile_lcdc_start(struct s
meram = mdev->ops->meram_register(mdev, ch->cfg->meram_cfg,
ch->pitch, ch->yres, pixelformat,
- &ch->pitch);
+ &ch->line_size);
if (!IS_ERR(meram)) {
mdev->ops->meram_update(mdev, meram,
ch->base_addr_y, ch->base_addr_c,
--- a/drivers/video/sh_mobile_lcdcfb.h
+++ b/drivers/video/sh_mobile_lcdcfb.h
@@ -84,6 +84,7 @@ struct sh_mobile_lcdc_chan {
unsigned long base_addr_y;
unsigned long base_addr_c;
+ unsigned int line_size;
int (*notify)(struct sh_mobile_lcdc_chan *ch,
enum sh_mobile_lcdc_entity_event event,
Patches currently in stable-queue which might be from
[email protected] are
queue-3.4/fbdev-sh_mobile_lcdc-don-t-confuse-line-size-with-pitch.patch
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