From: Mylene Josserand <mylene.josserand@free-electrons.com>
To: "Lothar Waßmann" <LW@KARO-electronics.de>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org,
Russell King - ARM Linux <linux@armlinux.org.uk>,
lkml <linux-kernel@vger.kernel.org>,
Quentin Schulz <quentin.schulz@free-electrons.com>,
Chen-Yu Tsai <wens@csie.org>, Rob Herring <robh+dt@kernel.org>,
"linux-input@vger.kernel.org" <linux-input@vger.kernel.org>,
Maxime Ripard <maxime.ripard@free-electrons.com>,
Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 1/2] Input: edt-ft5x06 - Add support for regulator
Date: Tue, 23 Jan 2018 10:13:35 +0100 [thread overview]
Message-ID: <20180123101335.205681d3@dell-desktop.home> (raw)
In-Reply-To: <20180123090414.47bcf118@karo-electronics.de>
Hello Lothar,
Le Tue, 23 Jan 2018 09:04:14 +0100,
Lothar Waßmann <LW@KARO-electronics.de> a écrit :
> Hi,
>
> On Mon, 22 Jan 2018 09:42:08 -0800 Dmitry Torokhov wrote:
> > Hi Mylène,
> >
> > On Thu, Dec 28, 2017 at 8:33 AM, Mylène Josserand
> > <mylene.josserand@free-electrons.com> wrote:
> > > Add the support of regulator to use it as VCC source.
> > >
> > > Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com>
> > > ---
> > > .../bindings/input/touchscreen/edt-ft5x06.txt | 1 +
> > > drivers/input/touchscreen/edt-ft5x06.c | 33 ++++++++++++++++++++++
> > > 2 files changed, 34 insertions(+)
> > >
> > > diff --git a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt
> > > index 025cf8c9324a..48e975b9c1aa 100644
> > > --- a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt
> > > +++ b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.txt
> > > @@ -30,6 +30,7 @@ Required properties:
> > > Optional properties:
> > > - reset-gpios: GPIO specification for the RESET input
> > > - wake-gpios: GPIO specification for the WAKE input
> > > + - vcc-supply: Regulator that supplies the touchscreen
> > >
> > > - pinctrl-names: should be "default"
> > > - pinctrl-0: a phandle pointing to the pin settings for the
> > > diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
> > > index c53a3d7239e7..5ee14a25a382 100644
> > > --- a/drivers/input/touchscreen/edt-ft5x06.c
> > > +++ b/drivers/input/touchscreen/edt-ft5x06.c
> > > @@ -39,6 +39,7 @@
> > > #include <linux/input/mt.h>
> > > #include <linux/input/touchscreen.h>
> > > #include <linux/of_device.h>
> > > +#include <linux/regulator/consumer.h>
> > >
> > > #define WORK_REGISTER_THRESHOLD 0x00
> > > #define WORK_REGISTER_REPORT_RATE 0x08
> > > @@ -91,6 +92,7 @@ struct edt_ft5x06_ts_data {
> > > struct touchscreen_properties prop;
> > > u16 num_x;
> > > u16 num_y;
> > > + struct regulator *vcc;
> > >
> > > struct gpio_desc *reset_gpio;
> > > struct gpio_desc *wake_gpio;
> > > @@ -993,6 +995,23 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client,
> > >
> > > tsdata->max_support_points = chip_data->max_support_points;
> > >
> > > + tsdata->vcc = devm_regulator_get(&client->dev, "vcc");
> > > + if (IS_ERR(tsdata->vcc)) {
> > > + error = PTR_ERR(tsdata->vcc);
> > > + dev_err(&client->dev, "failed to request regulator: %d\n",
> > > + error);
> >
> I would check for -EPROBE_DEFER here and omit the error message in this
> case.
>
>
> Lothar Waßmann
Sure, I will add this case, thank you for the review.
Best regards,
--
Mylène Josserand, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
next prev parent reply other threads:[~2018-01-23 9:13 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-28 16:33 [PATCH v2 0/2] sun8i-a83t: Add touchscreen support on TBS A711 Mylène Josserand
2017-12-28 16:33 ` [PATCH v2 1/2] Input: edt-ft5x06 - Add support for regulator Mylène Josserand
2017-12-30 3:15 ` [PATCH] Input: fix semicolon.cocci warnings kbuild test robot
2017-12-30 3:15 ` [PATCH v2 1/2] Input: edt-ft5x06 - Add support for regulator kbuild test robot
2018-01-03 19:48 ` Rob Herring
2018-01-22 12:51 ` Maxime Ripard
[not found] ` <20171228163336.28131-2-mylene.josserand-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2018-01-22 17:42 ` Dmitry Torokhov
2018-01-23 8:04 ` Lothar Waßmann
2018-01-23 9:13 ` Mylene Josserand [this message]
2018-01-23 9:10 ` Mylene Josserand
2018-01-23 17:58 ` Dmitry Torokhov
2018-01-26 10:11 ` Mylene Josserand
2017-12-28 16:33 ` [PATCH v2 2/2] arm: dts: sun8i: a83t: a711: Add touchscreen node Mylène Josserand
[not found] ` <20171228163336.28131-1-mylene.josserand-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2017-12-28 16:46 ` [PATCH v2 0/2] sun8i-a83t: Add touchscreen support on TBS A711 Mylene JOSSERAND
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