diff mbox series

[1/3] input: edt-ft5x06: Add support for regulator

Message ID 20191029005806.3577376-2-megous@megous.com (mailing list archive)
State Accepted
Commit 7448bfec6bf5e3e4a5abdd21b125a95c29a5952f
Headers show
Series Add touchscreen support for TBS A711 Tablet | expand

Commit Message

Ondřej Jirman Oct. 29, 2019, 12:58 a.m. UTC 
From: Mylène Josserand <mylene.josserand@bootlin.com>

Add the support for enabling optional regulator that may be used as VCC
source.

Signed-off-by: Ondrej Jirman <megous@megous.com>
Signed-off-by: Mylène Josserand <mylene.josserand@bootlin.com>
---
 drivers/input/touchscreen/edt-ft5x06.c | 30 ++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

Comments

Dmitry Torokhov Oct. 29, 2019, 4:12 a.m. UTC | #1 
On Tue, Oct 29, 2019 at 01:58:04AM +0100, Ondrej Jirman wrote:
> From: Mylène Josserand <mylene.josserand@bootlin.com>
> 
> Add the support for enabling optional regulator that may be used as VCC
> source.
> 
> Signed-off-by: Ondrej Jirman <megous@megous.com>
> Signed-off-by: Mylène Josserand <mylene.josserand@bootlin.com>

Applied, thank you.

> ---
>  drivers/input/touchscreen/edt-ft5x06.c | 30 ++++++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
> 
> diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
> index 5525f1fb1526..d61731c0037d 100644
> --- a/drivers/input/touchscreen/edt-ft5x06.c
> +++ b/drivers/input/touchscreen/edt-ft5x06.c
> @@ -28,6 +28,7 @@
>  #include <linux/input/mt.h>
>  #include <linux/input/touchscreen.h>
>  #include <asm/unaligned.h>
> +#include <linux/regulator/consumer.h>
>  
>  #define WORK_REGISTER_THRESHOLD		0x00
>  #define WORK_REGISTER_REPORT_RATE	0x08
> @@ -88,6 +89,7 @@ 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;
> @@ -1036,6 +1038,13 @@ edt_ft5x06_ts_set_regs(struct edt_ft5x06_ts_data *tsdata)
>  	}
>  }
>  
> +static void edt_ft5x06_disable_regulator(void *arg)
> +{
> +	struct edt_ft5x06_ts_data *data = arg;
> +
> +	regulator_disable(data->vcc);
> +}
> +
>  static int edt_ft5x06_ts_probe(struct i2c_client *client,
>  					 const struct i2c_device_id *id)
>  {
> @@ -1064,6 +1073,27 @@ 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);
> +		if (error != -EPROBE_DEFER)
> +			dev_err(&client->dev,
> +				"failed to request regulator: %d\n", error);
> +		return error;
> +	}
> +
> +	error = regulator_enable(tsdata->vcc);
> +	if (error < 0) {
> +		dev_err(&client->dev, "failed to enable vcc: %d\n", error);
> +		return error;
> +	}
> +
> +	error = devm_add_action_or_reset(&client->dev,
> +					 edt_ft5x06_disable_regulator,
> +					 tsdata);
> +	if (error)
> +		return error;
> +
>  	tsdata->reset_gpio = devm_gpiod_get_optional(&client->dev,
>  						     "reset", GPIOD_OUT_HIGH);
>  	if (IS_ERR(tsdata->reset_gpio)) {
> -- 
> 2.23.0
>
Marco Felsch Oct. 29, 2019, 8:55 a.m. UTC | #2 
Hi Dmitry,

On 19-10-28 21:12, Dmitry Torokhov wrote:
> On Tue, Oct 29, 2019 at 01:58:04AM +0100, Ondrej Jirman wrote:
> > From: Mylène Josserand <mylene.josserand@bootlin.com>
> > 
> > Add the support for enabling optional regulator that may be used as VCC
> > source.
> > 
> > Signed-off-by: Ondrej Jirman <megous@megous.com>
> > Signed-off-by: Mylène Josserand <mylene.josserand@bootlin.com>
> 
> Applied, thank you.

What happens with my vdd patches?

Regards,
  Marco

> 
> > ---
> >  drivers/input/touchscreen/edt-ft5x06.c | 30 ++++++++++++++++++++++++++
> >  1 file changed, 30 insertions(+)
> > 
> > diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
> > index 5525f1fb1526..d61731c0037d 100644
> > --- a/drivers/input/touchscreen/edt-ft5x06.c
> > +++ b/drivers/input/touchscreen/edt-ft5x06.c
> > @@ -28,6 +28,7 @@
> >  #include <linux/input/mt.h>
> >  #include <linux/input/touchscreen.h>
> >  #include <asm/unaligned.h>
> > +#include <linux/regulator/consumer.h>
> >  
> >  #define WORK_REGISTER_THRESHOLD		0x00
> >  #define WORK_REGISTER_REPORT_RATE	0x08
> > @@ -88,6 +89,7 @@ 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;
> > @@ -1036,6 +1038,13 @@ edt_ft5x06_ts_set_regs(struct edt_ft5x06_ts_data *tsdata)
> >  	}
> >  }
> >  
> > +static void edt_ft5x06_disable_regulator(void *arg)
> > +{
> > +	struct edt_ft5x06_ts_data *data = arg;
> > +
> > +	regulator_disable(data->vcc);
> > +}
> > +
> >  static int edt_ft5x06_ts_probe(struct i2c_client *client,
> >  					 const struct i2c_device_id *id)
> >  {
> > @@ -1064,6 +1073,27 @@ 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);
> > +		if (error != -EPROBE_DEFER)
> > +			dev_err(&client->dev,
> > +				"failed to request regulator: %d\n", error);
> > +		return error;
> > +	}
> > +
> > +	error = regulator_enable(tsdata->vcc);
> > +	if (error < 0) {
> > +		dev_err(&client->dev, "failed to enable vcc: %d\n", error);
> > +		return error;
> > +	}
> > +
> > +	error = devm_add_action_or_reset(&client->dev,
> > +					 edt_ft5x06_disable_regulator,
> > +					 tsdata);
> > +	if (error)
> > +		return error;
> > +
> >  	tsdata->reset_gpio = devm_gpiod_get_optional(&client->dev,
> >  						     "reset", GPIOD_OUT_HIGH);
> >  	if (IS_ERR(tsdata->reset_gpio)) {
> > -- 
> > 2.23.0
> > 
> 
> -- 
> Dmitry
>
Ondřej Jirman Oct. 29, 2019, 11:21 a.m. UTC | #3 
Hi Marco,

On Tue, Oct 29, 2019 at 09:55:45AM +0100, Marco Felsch wrote:
> Hi Dmitry,
> 
> On 19-10-28 21:12, Dmitry Torokhov wrote:
> > On Tue, Oct 29, 2019 at 01:58:04AM +0100, Ondrej Jirman wrote:
> > > From: Mylène Josserand <mylene.josserand@bootlin.com>
> > > 
> > > Add the support for enabling optional regulator that may be used as VCC
> > > source.
> > > 
> > > Signed-off-by: Ondrej Jirman <megous@megous.com>
> > > Signed-off-by: Mylène Josserand <mylene.josserand@bootlin.com>
> > 
> > Applied, thank you.
> 
> What happens with my vdd patches?

Sorry for not noticing your patches, I was only aware of Mylène's older series.
It looks like you can just skip regulator enable support from your series, and
re-send the deep-sleep mechanism and wakeup source patches only.

I'll test it with my board, and give you a tested-by.

thank you and regards,
	o.

> Regards,
>   Marco
> 
> > 
> > > ---
> > >  drivers/input/touchscreen/edt-ft5x06.c | 30 ++++++++++++++++++++++++++
> > >  1 file changed, 30 insertions(+)
> > > 
> > > diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
> > > index 5525f1fb1526..d61731c0037d 100644
> > > --- a/drivers/input/touchscreen/edt-ft5x06.c
> > > +++ b/drivers/input/touchscreen/edt-ft5x06.c
> > > @@ -28,6 +28,7 @@
> > >  #include <linux/input/mt.h>
> > >  #include <linux/input/touchscreen.h>
> > >  #include <asm/unaligned.h>
> > > +#include <linux/regulator/consumer.h>
> > >  
> > >  #define WORK_REGISTER_THRESHOLD		0x00
> > >  #define WORK_REGISTER_REPORT_RATE	0x08
> > > @@ -88,6 +89,7 @@ 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;
> > > @@ -1036,6 +1038,13 @@ edt_ft5x06_ts_set_regs(struct edt_ft5x06_ts_data *tsdata)
> > >  	}
> > >  }
> > >  
> > > +static void edt_ft5x06_disable_regulator(void *arg)
> > > +{
> > > +	struct edt_ft5x06_ts_data *data = arg;
> > > +
> > > +	regulator_disable(data->vcc);
> > > +}
> > > +
> > >  static int edt_ft5x06_ts_probe(struct i2c_client *client,
> > >  					 const struct i2c_device_id *id)
> > >  {
> > > @@ -1064,6 +1073,27 @@ 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);
> > > +		if (error != -EPROBE_DEFER)
> > > +			dev_err(&client->dev,
> > > +				"failed to request regulator: %d\n", error);
> > > +		return error;
> > > +	}
> > > +
> > > +	error = regulator_enable(tsdata->vcc);
> > > +	if (error < 0) {
> > > +		dev_err(&client->dev, "failed to enable vcc: %d\n", error);
> > > +		return error;
> > > +	}
> > > +
> > > +	error = devm_add_action_or_reset(&client->dev,
> > > +					 edt_ft5x06_disable_regulator,
> > > +					 tsdata);
> > > +	if (error)
> > > +		return error;
> > > +
> > >  	tsdata->reset_gpio = devm_gpiod_get_optional(&client->dev,
> > >  						     "reset", GPIOD_OUT_HIGH);
> > >  	if (IS_ERR(tsdata->reset_gpio)) {
> > > -- 
> > > 2.23.0
> > > 
> > 
> > -- 
> > Dmitry
> > 
> 
> -- 
> Pengutronix e.K.                           |                             |
> Industrial Linux Solutions                 | http://www.pengutronix.de/  |
> Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
> Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |
Marco Felsch Oct. 29, 2019, 11:29 a.m. UTC | #4 
Hi Ondřej,

On 19-10-29 12:21, Ondřej Jirman wrote:
> Hi Marco,
> 
> On Tue, Oct 29, 2019 at 09:55:45AM +0100, Marco Felsch wrote:
> > Hi Dmitry,
> > 
> > On 19-10-28 21:12, Dmitry Torokhov wrote:
> > > On Tue, Oct 29, 2019 at 01:58:04AM +0100, Ondrej Jirman wrote:
> > > > From: Mylène Josserand <mylene.josserand@bootlin.com>
> > > > 
> > > > Add the support for enabling optional regulator that may be used as VCC
> > > > source.
> > > > 
> > > > Signed-off-by: Ondrej Jirman <megous@megous.com>
> > > > Signed-off-by: Mylène Josserand <mylene.josserand@bootlin.com>
> > > 
> > > Applied, thank you.
> > 
> > What happens with my vdd patches?
> 
> Sorry for not noticing your patches, I was only aware of Mylène's older series.
> It looks like you can just skip regulator enable support from your series, and
> re-send the deep-sleep mechanism and wakeup source patches only.

No problems just wondered myself. Now I need to adapt the patches ^^

> I'll test it with my board, and give you a tested-by.

Thanks.

Regards,
  Marco

> thank you and regards,
> 	o.
> 
> > Regards,
> >   Marco
> > 
> > > 
> > > > ---
> > > >  drivers/input/touchscreen/edt-ft5x06.c | 30 ++++++++++++++++++++++++++
> > > >  1 file changed, 30 insertions(+)
> > > > 
> > > > diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
> > > > index 5525f1fb1526..d61731c0037d 100644
> > > > --- a/drivers/input/touchscreen/edt-ft5x06.c
> > > > +++ b/drivers/input/touchscreen/edt-ft5x06.c
> > > > @@ -28,6 +28,7 @@
> > > >  #include <linux/input/mt.h>
> > > >  #include <linux/input/touchscreen.h>
> > > >  #include <asm/unaligned.h>
> > > > +#include <linux/regulator/consumer.h>
> > > >  
> > > >  #define WORK_REGISTER_THRESHOLD		0x00
> > > >  #define WORK_REGISTER_REPORT_RATE	0x08
> > > > @@ -88,6 +89,7 @@ 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;
> > > > @@ -1036,6 +1038,13 @@ edt_ft5x06_ts_set_regs(struct edt_ft5x06_ts_data *tsdata)
> > > >  	}
> > > >  }
> > > >  
> > > > +static void edt_ft5x06_disable_regulator(void *arg)
> > > > +{
> > > > +	struct edt_ft5x06_ts_data *data = arg;
> > > > +
> > > > +	regulator_disable(data->vcc);
> > > > +}
> > > > +
> > > >  static int edt_ft5x06_ts_probe(struct i2c_client *client,
> > > >  					 const struct i2c_device_id *id)
> > > >  {
> > > > @@ -1064,6 +1073,27 @@ 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);
> > > > +		if (error != -EPROBE_DEFER)
> > > > +			dev_err(&client->dev,
> > > > +				"failed to request regulator: %d\n", error);
> > > > +		return error;
> > > > +	}
> > > > +
> > > > +	error = regulator_enable(tsdata->vcc);
> > > > +	if (error < 0) {
> > > > +		dev_err(&client->dev, "failed to enable vcc: %d\n", error);
> > > > +		return error;
> > > > +	}
> > > > +
> > > > +	error = devm_add_action_or_reset(&client->dev,
> > > > +					 edt_ft5x06_disable_regulator,
> > > > +					 tsdata);
> > > > +	if (error)
> > > > +		return error;
> > > > +
> > > >  	tsdata->reset_gpio = devm_gpiod_get_optional(&client->dev,
> > > >  						     "reset", GPIOD_OUT_HIGH);
> > > >  	if (IS_ERR(tsdata->reset_gpio)) {
> > > > -- 
> > > > 2.23.0
> > > > 
> > > 
> > > -- 
> > > Dmitry
> > > 
> > 
> > -- 
> > Pengutronix e.K.                           |                             |
> > Industrial Linux Solutions                 | http://www.pengutronix.de/  |
> > Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
> > Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |
>
diff mbox series

Patch

diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index 5525f1fb1526..d61731c0037d 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -28,6 +28,7 @@ 
 #include <linux/input/mt.h>
 #include <linux/input/touchscreen.h>
 #include <asm/unaligned.h>
+#include <linux/regulator/consumer.h>
 
 #define WORK_REGISTER_THRESHOLD		0x00
 #define WORK_REGISTER_REPORT_RATE	0x08
@@ -88,6 +89,7 @@  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;
@@ -1036,6 +1038,13 @@  edt_ft5x06_ts_set_regs(struct edt_ft5x06_ts_data *tsdata)
 	}
 }
 
+static void edt_ft5x06_disable_regulator(void *arg)
+{
+	struct edt_ft5x06_ts_data *data = arg;
+
+	regulator_disable(data->vcc);
+}
+
 static int edt_ft5x06_ts_probe(struct i2c_client *client,
 					 const struct i2c_device_id *id)
 {
@@ -1064,6 +1073,27 @@  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);
+		if (error != -EPROBE_DEFER)
+			dev_err(&client->dev,
+				"failed to request regulator: %d\n", error);
+		return error;
+	}
+
+	error = regulator_enable(tsdata->vcc);
+	if (error < 0) {
+		dev_err(&client->dev, "failed to enable vcc: %d\n", error);
+		return error;
+	}
+
+	error = devm_add_action_or_reset(&client->dev,
+					 edt_ft5x06_disable_regulator,
+					 tsdata);
+	if (error)
+		return error;
+
 	tsdata->reset_gpio = devm_gpiod_get_optional(&client->dev,
 						     "reset", GPIOD_OUT_HIGH);
 	if (IS_ERR(tsdata->reset_gpio)) {