From: Liam Beguin <redacted>
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 <redacted>
Signed-off-by: Sylvain Lemieux <redacted>
---
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 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)
--
2.11.0
ping
On Wed, 2017-03-08 at 09:58 -0500, Sylvain Lemieux wrote:
quoted hunk
From: Liam Beguin <redacted>
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 <redacted>
Signed-off-by: Sylvain Lemieux <redacted>
---
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 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)
Hi,
On Wednesday, March 08, 2017 09:58:05 AM Sylvain Lemieux wrote:
From: Liam Beguin <redacted>
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 <redacted>
Signed-off-by: Sylvain Lemieux <redacted>
Patch queued for 4.12, thanks.
Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics