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Commit 9a1c779e authored by Liam Beguin's avatar Liam Beguin Committed by Bartlomiej Zolnierkiewicz
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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: default avatarLiam Beguin <lbeguin@tycoint.com>
Signed-off-by: default avatarSylvain Lemieux <slemieux@tycoint.com>
Cc: Vladimir Zapolskiy <vz@mleia.com>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
parent 6f9655b1

drivers/video/fbdev/amba-clcd.c

+2 −2
Original line number Diff line number Diff line
@@ -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)