From: Liam Beguin <lbeg...@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 <lbeg...@tycoint.com>
Signed-off-by: Sylvain Lemieux <slemi...@tycoint.com>
Cc: Vladimir Zapolskiy <v...@mleia.com>
Cc: Russell King <li...@armlinux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnier...@samsung.com>
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
---
drivers/video/fbdev/amba-clcd.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/video/fbdev/amba-clcd.c b/drivers/video/fbdev/amba-clcd.c
index 6ad23bd3523a..7fd2f3f7ef7c 100644
--- 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 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)
--
2.14.1
