Re: [PATCH] drm: verisilicon: DRM_VERISILICON_DC should depend on ARCH_THEAD

[Michal Wilczynski]

On 2/26/26 16:36, Icenowy Zheng wrote:
> 在 2026-02-26四的 12:00 +0100，Geert Uytterhoeven写道：
>> Currently, the Verisilicon DC-series display controller driver
>> supports
>> only the DC8200 variant in the T-HEAD TH1520 SoC.  Hence restrict the
>> dependency on RISCV to ARCH_THEAD, to prevent asking the user about
>> this
>> driver when configuring a kernel without T-HEAD platform support.
>>
>> The dependency can be relaxed later, when adding support for
>> appropriate
>> SoCs from other vendors.
> 
> Michal Wilczynski has verified that this driver will work on StarFive
> JH7110 with some extra glue drivers (but without modification to this
> driver itself). [1]

Yeah I managed to test successfully (not all resolutions worked for me
but this does seem like HDMI driver issue). Additionally Graham Markall
managed to check on his VF2 independently [1]. Hopefully will find some
time to send an updated v2.

[1] - https://big-grey.co.uk/2026/01/26/testing-starfive-jh7110-display-controller-patches/

Best regards,
-- 
Michal Wilczynski <m.wilczynski@xxxxxxxxxxx>

> 
> Although this can be considered as future work and changing to
> ARCH_THEAD seems okay now.
> 
> (BTW the hardware identification values is taken from the vendor driver
> and it should support different variants of DC8200)
> 
> Thanks
> Icenowy
> 
> [1]
> https://protect2.fireeye.com/v1/url?k=9deb3bf5-c27002f9-9deab0ba-000babff3563-0751fbe2749df7e2&q=1&e=1bdc71ee-fc93-4f72-a715-c25dc3497820&u=https%3A%2F%2Flists.freedesktop.org%2Farchives%2Fdri-devel%2F2025-November%2F535442.html
> 
>>
>> Fixes: dbf21777caa8b8c8 ("drm: verisilicon: add a driver for
>> Verisilicon display controllers")
>> Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
>> ---
>>  drivers/gpu/drm/verisilicon/Kconfig | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/verisilicon/Kconfig
>> b/drivers/gpu/drm/verisilicon/Kconfig
>> index 7cce86ec8603c596..f2edde9e0037ebcd 100644
>> --- a/drivers/gpu/drm/verisilicon/Kconfig
>> +++ b/drivers/gpu/drm/verisilicon/Kconfig
>> @@ -2,7 +2,7 @@
>>  config DRM_VERISILICON_DC
>>  	tristate "DRM Support for Verisilicon DC-series display
>> controllers"
>>  	depends on DRM && COMMON_CLK
>> -	depends on RISCV || COMPILE_TEST
>> +	depends on ARCH_THEAD || COMPILE_TEST
>>  	select DRM_BRIDGE_CONNECTOR
>>  	select DRM_CLIENT_SELECTION
>>  	select DRM_DISPLAY_HELPER
> 
>