Re: [PATCH v2] PCI/pwrctrl/gpio: Correct GPIO_TC9563 / PCI_PWRCTRL_TC9563 dependency

[Bjorn Helgaas <helgaas@kernel.org>]

On Wed, Oct 21, 2026 at 11:23:52AM +0200, Geert Uytterhoeven wrote:
> The Toshiba TC9563 GPIO controller is embedded in the Toshiba TC9563
> PCIe switch, and its auxiliary device is instantiated by the TC9563 PCI
> Power Control driver.  Hence make GPIO_TC9563 depend on
> PCI_PWRCTRL_TC9563, to prevent asking the user about the GPIO driver
> when configuring a kernel without TC9563 PCI Power Control support.
> 
> Drop the dependency of PCI_PWRCTRL_TC9563 on GPIO_TC9563, which
> represents the inverse and wrong relationship.
> Let PCI_PWRCTRL_TC9563 select AUXILIARY_BUS, as this is no longer
> guaranteed through GPIO_TC9563.
> 
> Fixes: eea9a072221d97ab ("PCI/pwrctrl: tc9563: Add GPIO auxiliary device support")
> Fixes: 81ec9c22d06aea92 ("gpio: tc9563: Add support for the embedded GPIO controller")

These are still pending in pci/pwrctrl, so I squashed these fixes into
those commits for v7.4.

> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> ---
> v2:
>   - Let PCI_PWRCTRL_TC9563 select AUXILIARY_BUS.
> ---
>  drivers/gpio/Kconfig        | 1 +
>  drivers/pci/pwrctrl/Kconfig | 2 +-
>  2 files changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
> index 5d3f076c539b3a64..c5556b1638b8c113 100644
> --- a/drivers/gpio/Kconfig
> +++ b/drivers/gpio/Kconfig
> @@ -1893,6 +1893,7 @@ endmenu
>  
>  config GPIO_TC9563
>  	tristate "Toshiba TC9563 GPIO support"
> +	depends on PCI_PWRCTRL_TC9563 || COMPILE_TEST
>  	default m if ARCH_QCOM
>  	select AUXILIARY_BUS
>  	select GPIO_REGMAP
> diff --git a/drivers/pci/pwrctrl/Kconfig b/drivers/pci/pwrctrl/Kconfig
> index 38aab596aa04b8b1..a2fc2a359702e861 100644
> --- a/drivers/pci/pwrctrl/Kconfig
> +++ b/drivers/pci/pwrctrl/Kconfig
> @@ -29,7 +29,7 @@ config PCI_PWRCTRL_TC9563
>  	select PCI_PWRCTRL
>  	default m if ARCH_QCOM
>  	depends on I2C
> -	depends on GPIO_TC9563
> +	select AUXILIARY_BUS
>  	select REGMAP_I2C
>  	help
>  	  Say Y here to enable the PCI Power Control driver of TC9563 PCIe
> -- 
> 2.43.0
>