Re: [PATCH v2 04/10] drm/simpledrm: Compute framebuffer stride if not set

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Hi

Am 25.07.22 um 17:13 schrieb Javier Martinez Canillas:
Hello Geert,

On 7/21/22 16:46, Geert Uytterhoeven wrote:
Hi Thomas,

On Wed, Jul 20, 2022 at 4:27 PM Thomas Zimmermann <tzimmermann@xxxxxxx> wrote:
Compute the framebuffer's scanline stride length if not given by
the simplefb data.

Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>

Thanks for your patch!

--- a/drivers/gpu/drm/tiny/simpledrm.c
+++ b/drivers/gpu/drm/tiny/simpledrm.c
@@ -743,6 +743,9 @@ static struct simpledrm_device *simpledrm_device_create(struct drm_driver *drv,
                 drm_err(dev, "no simplefb configuration found\n");
                 return ERR_PTR(-ENODEV);
         }
+       if (!stride)
+               stride = format->cpp[0] * width;

DIV_ROUND_UP(drm_format_info_bpp(format) * width, 8)


I think you meant here:

DIV_ROUND_UP(drm_format_info_bpp(format, 0) * width, 8) ?

I guess, that's the right function. My original code is correct, but cpp is also deprecated.

Best regards
Thomas

With that change,

Acked-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>


--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev

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