[PATCH] drm/udl: Fix for the X server screen update v3

[David Herrmann]

Hi

On Wed, Sep 21, 2016 at 6:47 AM, poma <pomidorabelisima at gmail.com> wrote:
> Within X server, on top of DisplayLink GPU USB2.0 device,
> screen content is not refreshed i.e. updated.
>
> This fixes commit:
>
> - e375882406d0cc24030746638592004755ed4ae0
>   "drm/udl: Use drm_fb_helper deferred_io support"
>
> Thanks Noralf and Daniel for the comments.
>
> Tested-by: poma <poma at gmail.com>

Can you provide your Signed-off-by: line?

Reviewed-by: David Herrmann <dh.herrmann at gmail.com>

Thanks
David

> ---
>  drivers/gpu/drm/udl/udl_fb.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c
> index d5df555..cc2daba 100644
> --- a/drivers/gpu/drm/udl/udl_fb.c
> +++ b/drivers/gpu/drm/udl/udl_fb.c
> @@ -122,7 +122,7 @@ int udl_handle_damage(struct udl_framebuffer *fb, int x, int y,
>                 return 0;
>         cmd = urb->transfer_buffer;
>
> -       for (i = y; i < height ; i++) {
> +       for (i = y; i < y + height ; i++) {
>                 const int line_offset = fb->base.pitches[0] * i;
>                 const int byte_offset = line_offset + (x * bpp);
>                 const int dev_byte_offset = (fb->base.width * bpp * i) + (x * bpp);
> --
> 2.7.4
>
>
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