diff mbox series

[v3,04/12] gpiolib: remove gpio_set_debounce

Message ID 20230207142952.51844-5-andriy.shevchenko@linux.intel.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series gpiolib cleanups | expand

Checks

Context Check Description
netdev/tree_selection success Not a local patch

Commit Message

Andy Shevchenko Feb. 7, 2023, 2:29 p.m. UTC 
From: Arnd Bergmann <arnd@arndb.de>

gpio_set_debounce() only has a single user, which is trivially
converted to gpiod_set_debounce().

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 Documentation/driver-api/gpio/legacy.rst      |  2 --
 .../zh_CN/driver-api/gpio/legacy.rst          |  1 -
 Documentation/translations/zh_TW/gpio.txt     |  1 -
 drivers/input/touchscreen/ads7846.c           | 24 ++++++++++++-------
 include/linux/gpio.h                          | 10 --------
 5 files changed, 15 insertions(+), 23 deletions(-)

Comments

Dmitry Torokhov Feb. 7, 2023, 9:32 p.m. UTC | #1 
On Tue, Feb 07, 2023 at 04:29:44PM +0200, Andy Shevchenko wrote:
> @@ -1010,14 +1009,21 @@ static int ads7846_setup_pendown(struct spi_device *spi,
>  		}
>  
>  		ts->gpio_pendown = pdata->gpio_pendown;
> -
> -		if (pdata->gpio_pendown_debounce)
> -			gpio_set_debounce(pdata->gpio_pendown,
> -					  pdata->gpio_pendown_debounce);

Can we please change only this to:

			gpiod_set_debounce(gpio_to_desc(pdata->gpio_pendown),
					   pdata->gpio_pendown_debounce);

and not change anything else (i.e. drop the changes below)?

>  	} else {
> -		dev_err(&spi->dev, "no get_pendown_state nor gpio_pendown?\n");
> -		return -EINVAL;
> +		struct gpio_desc *desc;
> +
> +		desc = devm_gpiod_get(&spi->dev, "pendown", GPIOD_IN);
> +		if (IS_ERR(desc)) {
> +			dev_err(&spi->dev, "no get_pendown_state nor gpio_pendown?\n");
> +			return PTR_ERR(desc);
> +		}
> +		gpiod_set_consumer_name(desc, "ads7846_pendown");
> +
> +		ts->gpio_pendown = desc_to_gpio(desc);
>  	}
> +	if (pdata->gpio_pendown_debounce)
> +		gpiod_set_debounce(gpio_to_desc(ts->gpio_pendown),
> +				   pdata->gpio_pendown_debounce);
>  
>  	return 0;

Thanks.
Andy Shevchenko Feb. 7, 2023, 10:56 p.m. UTC | #2 
On Tue, Feb 07, 2023 at 01:32:01PM -0800, Dmitry Torokhov wrote:
> On Tue, Feb 07, 2023 at 04:29:44PM +0200, Andy Shevchenko wrote:
> > @@ -1010,14 +1009,21 @@ static int ads7846_setup_pendown(struct spi_device *spi,
> >  		}
> >  
> >  		ts->gpio_pendown = pdata->gpio_pendown;
> > -
> > -		if (pdata->gpio_pendown_debounce)
> > -			gpio_set_debounce(pdata->gpio_pendown,
> > -					  pdata->gpio_pendown_debounce);
> 
> Can we please change only this to:
> 
> 			gpiod_set_debounce(gpio_to_desc(pdata->gpio_pendown),
> 					   pdata->gpio_pendown_debounce);
> 
> and not change anything else (i.e. drop the changes below)?

Probably. I can try rollback this.

> >  	} else {
> > -		dev_err(&spi->dev, "no get_pendown_state nor gpio_pendown?\n");
> > -		return -EINVAL;
> > +		struct gpio_desc *desc;
> > +
> > +		desc = devm_gpiod_get(&spi->dev, "pendown", GPIOD_IN);
> > +		if (IS_ERR(desc)) {
> > +			dev_err(&spi->dev, "no get_pendown_state nor gpio_pendown?\n");
> > +			return PTR_ERR(desc);
> > +		}
> > +		gpiod_set_consumer_name(desc, "ads7846_pendown");
> > +
> > +		ts->gpio_pendown = desc_to_gpio(desc);
> >  	}
> > +	if (pdata->gpio_pendown_debounce)
> > +		gpiod_set_debounce(gpio_to_desc(ts->gpio_pendown),
> > +				   pdata->gpio_pendown_debounce);
> >  
> >  	return 0;
diff mbox series

Patch

diff --git a/Documentation/driver-api/gpio/legacy.rst b/Documentation/driver-api/gpio/legacy.rst
index a0559d93efd1..e0306e78e34b 100644
--- a/Documentation/driver-api/gpio/legacy.rst
+++ b/Documentation/driver-api/gpio/legacy.rst
@@ -238,8 +238,6 @@  setup or driver probe/teardown code, so this is an easy constraint.)::
         ## 	gpio_free_array()
 
                 gpio_free()
-                gpio_set_debounce()
-
 
 
 Claiming and Releasing GPIOs
diff --git a/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst b/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst
index 74fa473bb504..dee2a0517c1c 100644
--- a/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst
+++ b/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst
@@ -219,7 +219,6 @@  GPIO 值的命令需要等待其信息排到队首才发送命令，再获得其
         ## 	gpio_free_array()
 
                 gpio_free()
-                gpio_set_debounce()
 
 
 
diff --git a/Documentation/translations/zh_TW/gpio.txt b/Documentation/translations/zh_TW/gpio.txt
index 1b986bbb0909..dc608358d90a 100644
--- a/Documentation/translations/zh_TW/gpio.txt
+++ b/Documentation/translations/zh_TW/gpio.txt
@@ -226,7 +226,6 @@  GPIO 值的命令需要等待其信息排到隊首才發送命令，再獲得其
 ## 	gpio_free_array()
 
 	gpio_free()
-	gpio_set_debounce()
 
 
 
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 17f11bce8113..a9a4a7f7d315 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -25,8 +25,8 @@ 
 #include <linux/slab.h>
 #include <linux/pm.h>
 #include <linux/of.h>
-#include <linux/of_gpio.h>
 #include <linux/of_device.h>
+#include <linux/gpio/consumer.h>
 #include <linux/gpio.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/ads7846.h>
@@ -999,7 +999,6 @@  static int ads7846_setup_pendown(struct spi_device *spi,
 	if (pdata->get_pendown_state) {
 		ts->get_pendown_state = pdata->get_pendown_state;
 	} else if (gpio_is_valid(pdata->gpio_pendown)) {
-
 		err = devm_gpio_request_one(&spi->dev, pdata->gpio_pendown,
 					    GPIOF_IN, "ads7846_pendown");
 		if (err) {
@@ -1010,14 +1009,21 @@  static int ads7846_setup_pendown(struct spi_device *spi,
 		}
 
 		ts->gpio_pendown = pdata->gpio_pendown;
-
-		if (pdata->gpio_pendown_debounce)
-			gpio_set_debounce(pdata->gpio_pendown,
-					  pdata->gpio_pendown_debounce);
 	} else {
-		dev_err(&spi->dev, "no get_pendown_state nor gpio_pendown?\n");
-		return -EINVAL;
+		struct gpio_desc *desc;
+
+		desc = devm_gpiod_get(&spi->dev, "pendown", GPIOD_IN);
+		if (IS_ERR(desc)) {
+			dev_err(&spi->dev, "no get_pendown_state nor gpio_pendown?\n");
+			return PTR_ERR(desc);
+		}
+		gpiod_set_consumer_name(desc, "ads7846_pendown");
+
+		ts->gpio_pendown = desc_to_gpio(desc);
 	}
+	if (pdata->gpio_pendown_debounce)
+		gpiod_set_debounce(gpio_to_desc(ts->gpio_pendown),
+				   pdata->gpio_pendown_debounce);
 
 	return 0;
 }
@@ -1194,7 +1200,7 @@  static const struct ads7846_platform_data *ads7846_probe_dt(struct device *dev)
 	pdata->wakeup = of_property_read_bool(node, "wakeup-source") ||
 			of_property_read_bool(node, "linux,wakeup");
 
-	pdata->gpio_pendown = of_get_named_gpio(dev->of_node, "pendown-gpio", 0);
+	pdata->gpio_pendown = -ENOENT;
 
 	return pdata;
 }
diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index 6719a82eeec5..220e8656f2ab 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -100,11 +100,6 @@  static inline int gpio_direction_output(unsigned gpio, int value)
 	return gpiod_direction_output_raw(gpio_to_desc(gpio), value);
 }
 
-static inline int gpio_set_debounce(unsigned gpio, unsigned debounce)
-{
-	return gpiod_set_debounce(gpio_to_desc(gpio), debounce);
-}
-
 static inline int gpio_get_value_cansleep(unsigned gpio)
 {
 	return gpiod_get_raw_value_cansleep(gpio_to_desc(gpio));
@@ -215,11 +210,6 @@  static inline int gpio_direction_output(unsigned gpio, int value)
 	return -ENOSYS;
 }
 
-static inline int gpio_set_debounce(unsigned gpio, unsigned debounce)
-{
-	return -ENOSYS;
-}
-
 static inline int gpio_get_value(unsigned gpio)
 {
 	/* GPIO can never have been requested or set as {in,out}put */