Re: [PATCH 0/5] drm/ssd130x: A few enhancements and cleanups

[Thomas Zimmermann]

Hi Javierm,

I've read through the patches and they look correct to me.

Reviewed-by: Thomas Zimmermann <tzimmermann@xxxxxxx>

But I had one question about the page size. You round up to multiples of 
page_size in several places. That could lead to an out-of-bounds access. 
Do you need to allocate GEM buffers to be multiples of page_size as well?

Best regards
Thomas

Am 05.06.23 um 09:47 schrieb Javier Martinez Canillas:
> Hello,
>
> While working on adding support for the SSD132X family of 4-bit grayscale
> Solomon OLED panel controllers, I noticed a few things in the driver that
> can be improved and make extending to support other chip families easier.
>
> I've split the preparatory patches in this series and will post the actual
> SSD132X support as a separate patch-set once this one is merged.
>
> Best regards,
> Javier
>
>
> Javier Martinez Canillas (5):
>    drm/ssd130x: Make default width and height to be controller dependent
>    dt-bindings: display: ssd1307fb: Remove default width and height
>      values
>    drm/ssd130x: Set the page height value in the device info data
>    drm/ssd130x: Don't allocate buffers on each plane update
>    drm/ssd130x: Remove hardcoded bits-per-pixel in ssd130x_buf_alloc()
>
>   .../bindings/display/solomon,ssd1307fb.yaml   |   8 +-
>   drivers/gpu/drm/solomon/ssd130x.c             | 124 ++++++++++++------
>   drivers/gpu/drm/solomon/ssd130x.h             |   6 +
>   3 files changed, 93 insertions(+), 45 deletions(-)

--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)

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