* Patch "video: ARM CLCD: fix dma allocation size" has been added to the 3.18-stable tree
@ 2018-03-19 9:13 gregkh
0 siblings, 0 replies; only message in thread
From: gregkh @ 2018-03-19 9:13 UTC (permalink / raw)
To: lbeguin, alexander.levin, b.zolnierkie, gregkh, linux, slemieux, vz
Cc: stable, stable-commits
This is a note to let you know that I've just added the patch titled
video: ARM CLCD: fix dma allocation size
to the 3.18-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:
video-arm-clcd-fix-dma-allocation-size.patch
and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From foo@baz Mon Mar 19 10:11:52 CET 2018
From: Liam Beguin <lbeguin@tycoint.com>
Date: Fri, 7 Apr 2017 17:03:24 +0200
Subject: video: ARM CLCD: fix dma allocation size
From: Liam Beguin <lbeguin@tycoint.com>
[ Upstream commit 9a1c779e6b06855e41099caa6f15b3b584dfa88c ]
This patch forces the frambuffer size to be aligned on kernel pages.
During the board startup, the splash screed did appear;
the "ts_test" program or our application were not able to start.
The following error message was reported:
error: failed to map framebuffer device to memory.
LinuxFB: driver cannot connect
The issue was discovered, on the LPC32xx platform, during the migration
of the LCD definition from the board file to the device tree.
Signed-off-by: Liam Beguin <lbeguin@tycoint.com>
Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
Cc: Vladimir Zapolskiy <vz@mleia.com>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/video/fbdev/amba-clcd.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/video/fbdev/amba-clcd.c
+++ b/drivers/video/fbdev/amba-clcd.c
@@ -757,8 +757,8 @@ static int clcdfb_of_dma_setup(struct cl
if (err)
return err;
- framesize = fb->panel->mode.xres * fb->panel->mode.yres *
- fb->panel->bpp / 8;
+ framesize = PAGE_ALIGN(fb->panel->mode.xres * fb->panel->mode.yres *
+ fb->panel->bpp / 8);
fb->fb.screen_base = dma_alloc_coherent(&fb->dev->dev, framesize,
&dma, GFP_KERNEL);
if (!fb->fb.screen_base)
Patches currently in stable-queue which might be from lbeguin@tycoint.com are
queue-3.18/video-arm-clcd-fix-dma-allocation-size.patch
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2018-03-19 9:16 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-03-19 9:13 Patch "video: ARM CLCD: fix dma allocation size" has been added to the 3.18-stable tree gregkh
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).