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authorLiam Beguin <lbeguin@tycoint.com>2017-04-07 17:03:24 +0200
committerBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>2017-04-07 17:03:24 +0200
commit9a1c779e6b06855e41099caa6f15b3b584dfa88c (patch)
treeb2e7e1eb4b1a5f84853f8d4207a5459734a3562c /drivers/video
parent6f9655b1b81f2aa9207ec3837641299406a26b69 (diff)
downloadlinux-9a1c779e6b06855e41099caa6f15b3b584dfa88c.tar.bz2
video: ARM CLCD: fix dma allocation size
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>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/fbdev/amba-clcd.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/video/fbdev/amba-clcd.c b/drivers/video/fbdev/amba-clcd.c
index 0fab92c62828..ffc2c33c6cef 100644
--- a/drivers/video/fbdev/amba-clcd.c
+++ b/drivers/video/fbdev/amba-clcd.c
@@ -881,8 +881,8 @@ 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)