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Mon, 26 Oct 2020 14:42:10 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by whitealder.osuosl.org (Postfix) with ESMTPS id B5EC8865D4 for ; Mon, 26 Oct 2020 14:42:09 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 2EF1CB8E1; Mon, 26 Oct 2020 14:42:08 +0000 (UTC) Message-ID: <700a149849222f3efbec73cb8a6be56b4b1c5bcb.camel@suse.de> Subject: Re: [PATCH v2 03/10] gpio: raspberrypi-exp: Release firmware handle on unbind From: Nicolas Saenz Julienne To: Bartosz Golaszewski Date: Mon, 26 Oct 2020 15:42:06 +0100 In-Reply-To: References: <20201022155858.20867-1-nsaenzjulienne@suse.de> <20201022155858.20867-4-nsaenzjulienne@suse.de> User-Agent: Evolution 3.36.5 MIME-Version: 1.0 X-BeenThere: driverdev-devel@linuxdriverproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Driver Project Developer List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devel@driverdev.osuosl.org, linux-pwm@vger.kernel.org, Florian Fainelli , linux-devicetree , Stephen Boyd , Greg KH , Linus Walleij , Linux Input , LKML , linux-gpio , bcm-kernel-feedback-list@broadcom.com, wahrenst@gmx.net, Philipp Zabel , Uwe =?ISO-8859-1?Q?Kleine-K=F6nig?= , Dmitry Torokhov , linux-clk , arm-soc , linux-rpi-kernel@lists.infradead.org Content-Type: multipart/mixed; boundary="===============3978372353722051655==" Errors-To: driverdev-devel-bounces@linuxdriverproject.org Sender: "devel" --===============3978372353722051655== Content-Type: multipart/signed; micalg="pgp-sha256"; protocol="application/pgp-signature"; boundary="=-4RJXy1XArEUanWEz7Yut" --=-4RJXy1XArEUanWEz7Yut Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Mon, 2020-10-26 at 15:40 +0100, Bartosz Golaszewski wrote: > On Thu, Oct 22, 2020 at 5:59 PM Nicolas Saenz Julienne > wrote: > > Upon unbinding the device make sure we release RPi's firmware interface= . > >=20 > > Signed-off-by: Nicolas Saenz Julienne > > --- > > drivers/gpio/gpio-raspberrypi-exp.c | 14 +++++++++++++- > > 1 file changed, 13 insertions(+), 1 deletion(-) > >=20 > > diff --git a/drivers/gpio/gpio-raspberrypi-exp.c b/drivers/gpio/gpio-ra= spberrypi-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_devi= ce *pdev) > > rpi_gpio->gc.get =3D rpi_exp_gpio_get; > > rpi_gpio->gc.set =3D rpi_exp_gpio_set; > > rpi_gpio->gc.can_sleep =3D true; > > + platform_set_drvdata(pdev, rpi_gpio); > >=20 > > - 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 =3D platform_get_drvdata(pdev); > > + > > + gpiochip_remove(&rpi_gpio->gc); > > + rpi_firmware_put(rpi_gpio->fw); > > + > > + return 0; > > } > >=20 > > static const struct of_device_id rpi_exp_gpio_ids[] =3D { > > @@ -247,6 +258,7 @@ static struct platform_driver rpi_exp_gpio_driver = =3D { > > .of_match_table =3D of_match_ptr(rpi_exp_gpio_ids), > > }, > > .probe =3D rpi_exp_gpio_probe, > > + .remove =3D rpi_exp_gpio_remove, > > }; > > module_platform_driver(rpi_exp_gpio_driver); > >=20 > > -- > > 2.28.0 > >=20 >=20 > Why not introduce devm_rpi_firmware_get()? That would allow you to > keep the driver elegant without re-adding remove(). I like the idea, I'll look into it. Thanks, Nicolas --=-4RJXy1XArEUanWEz7Yut Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEErOkkGDHCg2EbPcGjlfZmHno8x/4FAl+W4D4ACgkQlfZmHno8 x/4RVwf/UZbRYwQfpY+67Gru7U3IMExckiPcjOHqeN3IO1Aqys6hi0LcCgQmZoRS yDES/QK4HITWb2LEOikdeICzUhcAmHLuD6l9Si1lOw/g7RZAcNoB+gejoLIKsxsJ BvBSsCz+ARcANf68gksyv52nsVLhMNlvZpnoVV6p9VTzTb0q7+QOBy7KndC73pyM cLs3LcbX7jTY71QjVIAVJql7UiQmzjA9V08bxNan8AF/yttAj0PgtZga1WYXQHG/ ipUuvMADCJYB9WrHAhtY8TV1G1pGs0b+OTU6cEZukdSAUaNXzL+DKDHm3nlMi887 7aRyD6vm++8u7ecNrtj2/Iug3MLyQg== =FwXW -----END PGP SIGNATURE----- --=-4RJXy1XArEUanWEz7Yut-- --===============3978372353722051655== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ devel mailing list devel@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel --===============3978372353722051655==--