diff options
| author | Liam Beguin <lbeguin@tycoint.com> | 2017-04-07 18:03:24 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-22 11:17:48 +0300 |
| commit | b8c231ebced08cc005e164ad841cc6395596189e (patch) | |
| tree | ba92954210a3132d1ee5dc3e054a97ce9c53c2c2 | |
| parent | afd9ccdd1422d0c1b2e19afbcab7780026114f76 (diff) | |
| download | linux-b8c231ebced08cc005e164ad841cc6395596189e.tar.xz | |
video: ARM CLCD: fix dma allocation size
[ 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>
| -rw-r--r-- | drivers/video/fbdev/amba-clcd.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/video/fbdev/amba-clcd.c b/drivers/video/fbdev/amba-clcd.c index ec2671d98abc..89880b70cc28 100644 --- a/drivers/video/fbdev/amba-clcd.c +++ b/drivers/video/fbdev/amba-clcd.c @@ -892,8 +892,8 @@ static int clcdfb_of_dma_setup(struct clcd_fb *fb) 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) |