| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 160/545] drm/st7735r: Fix module autoloading for Okaya RH128128T | Date | Fri, 19 Aug 2022 17:38:50 +0200 |
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From: Javier Martinez Canillas <javierm@redhat.com>
[ Upstream commit 9ad6f181ad9a19a26bda73a7b199df44ccfcdaba ]
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> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: David Lechner <david@lechnology.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220520091602.179078-1-javierm@redhat.com Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/gpu/drm/tiny/st7735r.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/tiny/st7735r.c b/drivers/gpu/drm/tiny/st7735r.c index c0bc2a18edde..9d0c127bdb0c 100644 --- a/drivers/gpu/drm/tiny/st7735r.c +++ b/drivers/gpu/drm/tiny/st7735r.c @@ -175,6 +175,7 @@ MODULE_DEVICE_TABLE(of, st7735r_of_match); static const struct spi_device_id st7735r_id[] = { { "jd-t18003-t01", (uintptr_t)&jd_t18003_t01_cfg }, + { "rh128128t", (uintptr_t)&rh128128t_cfg }, { }, }; MODULE_DEVICE_TABLE(spi, st7735r_id); -- 2.35.1
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