Re: [PATCH v1 07/11] PCI: apple: switch to using fwnode_gpiod_get_index()

[Dmitry Torokhov <dmitry.torokhov@gmail.com>]

On Sun, Sep 04, 2022 at 11:30:59PM -0700, Dmitry Torokhov wrote:
> I would like to stop exporting OF-specific gpiod_get_from_of_node()
> so that gpiolib can be cleaned a bit, so let's switch to the generic
> fwnode property API.
> 
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> 
> diff --git a/drivers/pci/controller/pcie-apple.c b/drivers/pci/controller/pcie-apple.c
> index a2c3c207a04b..d83817d3ff86 100644
> --- a/drivers/pci/controller/pcie-apple.c
> +++ b/drivers/pci/controller/pcie-apple.c
> @@ -516,8 +516,8 @@ static int apple_pcie_setup_port(struct apple_pcie *pcie,
>  	u32 stat, idx;
>  	int ret, i;
>  
> -	reset = gpiod_get_from_of_node(np, "reset-gpios", 0,
> -				       GPIOD_OUT_LOW, "PERST#");
> +	reset = fwnode_gpiod_get_index(of_fwnode_handle(np),
> +				       "reset", 0, GPIOD_OUT_LOW, "PERST#");

Hmm, I am looking at the driver and it leaks the reset gpio on
unbind/unload. I guess it does not matter in practice, but still nice
not to leak. Thankfully it is easy to cure by switching to devm option:
devm_fwnode_gpiod_get().

I'll send and updated patch with a new justification.

Thanks.

-- 
Dmitry