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Date:   Mon, 5 Sep 2022 09:19:02 +0200
From:   Pali =?utf-8?B?Um9ow6Fy?= <pali@kernel.org>
To:     Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc:     Thierry Reding <thierry.reding@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Matti Vaittinen <mazziesaccount@gmail.com>,
        Lorenzo Pieralisi <lpieralisi@kernel.org>,
        Claudiu Beznea <claudiu.beznea@microchip.com>,
        Liam Girdwood <lgirdwood@gmail.com>,
        Wim Van Sebroeck <wim@linux-watchdog.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Guenter Roeck <linux@roeck-us.net>,
        Miquel Raynal <miquel.raynal@bootlin.com>,
        Linus Walleij <linus.walleij@linaro.org>,
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        Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= <kw@linux.com>,
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        Daniel Vetter <daniel@ffwll.ch>,
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        linux-gpio@vger.kernel.org, linux-pci@vger.kernel.org,
        linux-tegra@vger.kernel.org, linux-mtd@lists.infradead.org,
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Subject: Re: [PATCH v1 01/11] PCI: tegra: switch to using
 devm_fwnode_gpiod_get
Message-ID: <20220905071902.fv4uozrsttk3mosu@pali>
References: <20220903-gpiod_get_from_of_node-remove-v1-0-b29adfb27a6c@gmail.com>
 <20220903-gpiod_get_from_of_node-remove-v1-1-b29adfb27a6c@gmail.com>
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On Sunday 04 September 2022 23:30:53 Dmitry Torokhov wrote:
> I would like to limit (or maybe even remove) use of
> [devm_]gpiod_get_from_of_node in drivers so that gpiolib can be cleaned
> a bit, so let's switch to the generic device property API. It may even
> help with handling secondary fwnodes when gpiolib is taught to handle
> gpios described by swnodes.
> 
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> 
> diff --git a/drivers/pci/controller/pci-tegra.c b/drivers/pci/controller/pci-tegra.c
> index 8e323e93be91..929f9363e94b 100644
> --- a/drivers/pci/controller/pci-tegra.c
> +++ b/drivers/pci/controller/pci-tegra.c
> @@ -2202,10 +2202,11 @@ static int tegra_pcie_parse_dt(struct tegra_pcie *pcie)
>  		 * and in this case fall back to using AFI per port register
>  		 * to toggle PERST# SFIO line.
>  		 */
> -		rp->reset_gpio = devm_gpiod_get_from_of_node(dev, port,
> -							     "reset-gpios", 0,
> -							     GPIOD_OUT_LOW,
> -							     label);
> +		rp->reset_gpio = devm_fwnode_gpiod_get(dev,
> +						       of_fwnode_handle(port),
> +						       "reset",
> +						       GPIOD_OUT_LOW,
> +						       label);

Why in pci-aardvark.c for PERST# reset-gpio you have used
devm_gpiod_get_optional() and here in pci-tegra.c you have used
devm_fwnode_gpiod_get()? I think that PERST# logic is same in both
drivers.

>  		if (IS_ERR(rp->reset_gpio)) {
>  			if (PTR_ERR(rp->reset_gpio) == -ENOENT) {
>  				rp->reset_gpio = NULL;
> 
> -- 
> b4 0.10.0-dev-fc921