[PATCH v1 07/11] PCI: apple: switch to using fwnode_gpiod_get_index()
Dmitry Torokhov
dmitry.torokhov at gmail.com
Mon Sep 5 17:19:17 PDT 2022
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 at 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
More information about the linux-arm-kernel
mailing list