From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
To: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Cc: devel@driverdev.osuosl.org, linux-pwm@vger.kernel.org,
"Florian Fainelli" <f.fainelli@gmail.com>,
linux-devicetree <devicetree@vger.kernel.org>,
"Stephen Boyd" <sboyd@kernel.org>,
"Greg KH" <gregkh@linuxfoundation.org>,
"Linus Walleij" <linus.walleij@linaro.org>,
"Linux Input" <linux-input@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
linux-gpio <linux-gpio@vger.kernel.org>,
bcm-kernel-feedback-list@broadcom.com, wahrenst@gmx.net,
"Philipp Zabel" <p.zabel@pengutronix.de>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Dmitry Torokhov" <dmitry.torokhov@gmail.com>,
linux-clk <linux-clk@vger.kernel.org>,
arm-soc <linux-arm-kernel@lists.infradead.org>,
linux-rpi-kernel@lists.infradead.org
Subject: Re: [PATCH v2 03/10] gpio: raspberrypi-exp: Release firmware handle on unbind
Date: Mon, 26 Oct 2020 15:40:55 +0100 [thread overview]
Message-ID: <CAMpxmJXw12hKYCuMDjG-Ns6n=mXmr4B2x3HJaAJ19wH_xDUMag@mail.gmail.com> (raw)
In-Reply-To: <20201022155858.20867-4-nsaenzjulienne@suse.de>
On Thu, Oct 22, 2020 at 5:59 PM Nicolas Saenz Julienne
<nsaenzjulienne@suse.de> wrote:
>
> Upon unbinding the device make sure we release RPi's firmware interface.
>
> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
> ---
> drivers/gpio/gpio-raspberrypi-exp.c | 14 +++++++++++++-
> 1 file changed, 13 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpio/gpio-raspberrypi-exp.c b/drivers/gpio/gpio-raspberrypi-exp.c
> index bb100e0124e6..c008336e1131 100644
> --- a/drivers/gpio/gpio-raspberrypi-exp.c
> +++ b/drivers/gpio/gpio-raspberrypi-exp.c
> @@ -231,8 +231,19 @@ static int rpi_exp_gpio_probe(struct platform_device *pdev)
> rpi_gpio->gc.get = rpi_exp_gpio_get;
> rpi_gpio->gc.set = rpi_exp_gpio_set;
> rpi_gpio->gc.can_sleep = true;
> + platform_set_drvdata(pdev, rpi_gpio);
>
> - return devm_gpiochip_add_data(dev, &rpi_gpio->gc, rpi_gpio);
> + return gpiochip_add_data(&rpi_gpio->gc, rpi_gpio);
> +}
> +
> +static int rpi_exp_gpio_remove(struct platform_device *pdev)
> +{
> + struct rpi_exp_gpio *rpi_gpio = platform_get_drvdata(pdev);
> +
> + gpiochip_remove(&rpi_gpio->gc);
> + rpi_firmware_put(rpi_gpio->fw);
> +
> + return 0;
> }
>
> static const struct of_device_id rpi_exp_gpio_ids[] = {
> @@ -247,6 +258,7 @@ static struct platform_driver rpi_exp_gpio_driver = {
> .of_match_table = of_match_ptr(rpi_exp_gpio_ids),
> },
> .probe = rpi_exp_gpio_probe,
> + .remove = rpi_exp_gpio_remove,
> };
> module_platform_driver(rpi_exp_gpio_driver);
>
> --
> 2.28.0
>
Why not introduce devm_rpi_firmware_get()? That would allow you to
keep the driver elegant without re-adding remove().
Bartosz
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next prev parent reply other threads:[~2020-10-26 14:48 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-22 15:58 [PATCH v2 00/10] Raspberry Pi PoE HAT fan support Nicolas Saenz Julienne
2020-10-22 15:58 ` [PATCH v2 01/10] firmware: raspberrypi: Introduce rpi_firmware_put() Nicolas Saenz Julienne
2020-10-22 18:46 ` Andy Shevchenko
2020-10-26 16:26 ` Nicolas Saenz Julienne
2020-10-22 15:58 ` [PATCH v2 02/10] clk: bcm: rpi: Release firmware handle on unbind Nicolas Saenz Julienne
2020-10-22 15:58 ` [PATCH v2 03/10] gpio: raspberrypi-exp: " Nicolas Saenz Julienne
2020-10-26 14:40 ` Bartosz Golaszewski [this message]
2020-10-26 14:42 ` Nicolas Saenz Julienne
2020-10-26 14:45 ` Bartosz Golaszewski
2020-10-22 15:58 ` [PATCH v2 04/10] reset: raspberrypi: " Nicolas Saenz Julienne
2020-10-22 15:58 ` [PATCH v2 05/10] soc: bcm: raspberrypi-power: " Nicolas Saenz Julienne
2020-10-26 14:31 ` Nicolas Saenz Julienne
2020-10-22 15:58 ` [PATCH v2 06/10] staging: vchiq: " Nicolas Saenz Julienne
2020-10-22 15:58 ` [PATCH v2 07/10] input: raspberrypi-ts: Release firmware handle when not needed Nicolas Saenz Julienne
2020-10-22 15:58 ` [PATCH v2 08/10] dt-bindings: pwm: Add binding for RPi firmware PWM bus Nicolas Saenz Julienne
2020-10-30 15:37 ` Rob Herring
2020-10-22 15:58 ` [PATCH v2 09/10] DO NOT MERGE: ARM: dts: Add RPi's official PoE hat support Nicolas Saenz Julienne
2020-10-22 15:58 ` [PATCH v2 10/10] pwm: Add Raspberry Pi Firmware based PWM bus Nicolas Saenz Julienne
2020-10-22 18:53 ` Andy Shevchenko
2020-10-26 14:02 ` Nicolas Saenz Julienne
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