Re: [PATCH] phy: PHY_GOOGLE_USB should depend on ARCH_GOOGLE

From: André Draszik

Date: Wed Jan 28 2026 - 15:03:39 EST


Hi Geert,

On Tue, 2026-01-27 at 20:12 +0100, Geert Uytterhoeven wrote:
> The Google Tensor SoC USB PHY is only present on Google Tensor G5
> (Laguna) SoCs.  Hence add a dependency on ARCH_GOOGLE, to prevent asking
> the user about this driver when configuring a kernel without Google
> Tensor SoC support.
>
> Fixes: cbce66669c82ee9a ("phy: Add Google Tensor SoC USB PHY driver")
> Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> ---
> ARCH_GOOGLE is not yet upstream, but that doesn't hurt.

I can see your point, and have no objection, but for context, Greg
had asked to not add dependencies on a config option that might or
might not get added in the future - ARCH_GOOGLE:

https://lore.kernel.org/all/2025121728-reliably-crabgrass-2601@gregkh/

Maybe an alternative would be to make it default=n, and change that
default once ARCH_GOOGLE gets added?


Cheers,
Andre'

> ---
>  drivers/phy/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
> index 142e7b0ef2efb920..3ceda9a20d571038 100644
> --- a/drivers/phy/Kconfig
> +++ b/drivers/phy/Kconfig
> @@ -49,6 +49,7 @@ config GENERIC_PHY_MIPI_DPHY
>  
>  config PHY_GOOGLE_USB
>   tristate "Google Tensor SoC USB PHY driver"
> + depends on ARCH_GOOGLE || COMPILE_TEST
>   select GENERIC_PHY
>   help
>     Enable support for the USB PHY on Google Tensor SoCs, starting with