Hello Geert,
On 5/20/22 14:02, Geert Uytterhoeven wrote:
Hi Javier,
CC spi
On Fri, May 20, 2022 at 11:16 AM Javier Martinez Canillas javierm@redhat.com wrote:
The SPI core always reports a "MODALIAS=spi:<foo>", even if the device was registered via OF. This means that the st7735r.ko module won't autoload if a DT has a node with a compatible "okaya,rh128128t" string.
In that case, kmod expects a "MODALIAS=of:N*T*Cokaya,rh128128t" uevent but instead will get a "MODALIAS=spi:rh128128t", which is not present in the list of aliases:
$ modinfo drivers/gpu/drm/tiny/st7735r.ko | grep alias alias: of:N*T*Cokaya,rh128128tC* alias: of:N*T*Cokaya,rh128128t alias: of:N*T*Cjianda,jd-t18003-t01C* alias: of:N*T*Cjianda,jd-t18003-t01 alias: spi:jd-t18003-t01
To workaround this issue, add in the SPI table an entry for that device.
Fixes: d1d511d516f7 ("drm: tiny: st7735r: Add support for Okaya RH128128T") Signed-off-by: Javier Martinez Canillas javierm@redhat.com
Thanks for your patch! We really need to fix this at the subsystem level.
Yes, agreed.
Reviewed-by: Geert Uytterhoeven geert+renesas@glider.be
Thanks! I've pushed this to drm-misc (drm-misc-next) with your Reviewed-by and David's Acked-by.