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* [PATCH] staging: iio: adt7316: Switch to the gpio descriptor interface
@ 2018-10-22 17:14 Nishad Kamdar
  2018-10-22 17:52 ` Shreeya Patel
  2018-10-23  5:39 ` Dan Carpenter
  0 siblings, 2 replies; 3+ messages in thread
From: Nishad Kamdar @ 2018-10-22 17:14 UTC (permalink / raw)
  To: Lars-Peter Clausen
  Cc: Slawomir Stepien, Michael Hennerich, Jonathan Cameron,
	Hartmut Knaack, Peter Meerwald-Stadler, Greg Kroah-Hartman,
	linux-iio, devel, linux-kernel

Use the gpiod interface instead of the deprecated old non-descriptor
interface for ldac_pin.

Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
---
 drivers/staging/iio/addac/adt7316.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c
index 3f22d1088713..94f945ba0097 100644
--- a/drivers/staging/iio/addac/adt7316.c
+++ b/drivers/staging/iio/addac/adt7316.c
@@ -8,7 +8,7 @@
  */
 
 #include <linux/interrupt.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/workqueue.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
@@ -177,7 +177,7 @@
 
 struct adt7316_chip_info {
 	struct adt7316_bus	bus;
-	u16			ldac_pin;
+	struct gpio_desc	*ldac_pin;
 	u16			int_mask;	/* 0x2f */
 	u8			config1;
 	u8			config2;
@@ -950,8 +950,8 @@ static ssize_t adt7316_store_update_DAC(struct device *dev,
 		if (ret)
 			return -EIO;
 	} else {
-		gpio_set_value(chip->ldac_pin, 0);
-		gpio_set_value(chip->ldac_pin, 1);
+		gpiod_set_value(chip->ldac_pin, 0);
+		gpiod_set_value(chip->ldac_pin, 1);
 	}
 
 	return len;
@@ -2120,7 +2120,14 @@ int adt7316_probe(struct device *dev, struct adt7316_bus *bus,
 	else
 		return -ENODEV;
 
-	chip->ldac_pin = adt7316_platform_data[1];
+	chip->ldac_pin = devm_gpiod_get(dev, "ldac", GPIOD_OUT_HIGH);
+	if (IS_ERR(chip->ldac_pin)) {
+		ret = PTR_ERR(chip->ldac_pin);
+		dev_err(dev, "Failed to request ldac GPIO: %d\n",
+			ret);
+		return ret;
+	}
+
 	if (chip->ldac_pin) {
 		chip->config3 |= ADT7316_DA_EN_VIA_DAC_LDCA;
 		if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)
-- 
2.17.1


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH] staging: iio: adt7316: Switch to the gpio descriptor interface
  2018-10-22 17:14 [PATCH] staging: iio: adt7316: Switch to the gpio descriptor interface Nishad Kamdar
@ 2018-10-22 17:52 ` Shreeya Patel
  2018-10-23  5:39 ` Dan Carpenter
  1 sibling, 0 replies; 3+ messages in thread
From: Shreeya Patel @ 2018-10-22 17:52 UTC (permalink / raw)
  To: Nishad Kamdar, Lars-Peter Clausen
  Cc: Slawomir Stepien, Michael Hennerich, Jonathan Cameron,
	Hartmut Knaack, Peter Meerwald-Stadler, Greg Kroah-Hartman,
	linux-iio, devel, linux-kernel

On Mon, 2018-10-22 at 22:44 +0530, Nishad Kamdar wrote:
> Use the gpiod interface instead of the deprecated old non-descriptor
> interface for ldac_pin.
> 
> Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
> ---

Hi Nishad,

I have been working on implementing device tree bindings for this
driver and removing platform data from it.

I've sent a series of patches for it to Jonathan. I didn't send it 
on the mailing list as I wanted to confirm from Jonathan if we wants
something more to be done in the series. That series also includes
the change which you are proposing here.
I am really sorry that you didn't know about this.
If you are planning to send any other patches for this driver then
let me know before you start implementing it so that we can
co-ordinate before doing any work.

Thanks


>  drivers/staging/iio/addac/adt7316.c | 17 ++++++++++++-----
>  1 file changed, 12 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/staging/iio/addac/adt7316.c
> b/drivers/staging/iio/addac/adt7316.c
> index 3f22d1088713..94f945ba0097 100644
> --- a/drivers/staging/iio/addac/adt7316.c
> +++ b/drivers/staging/iio/addac/adt7316.c
> @@ -8,7 +8,7 @@
>   */
>  
>  #include <linux/interrupt.h>
> -#include <linux/gpio.h>
> +#include <linux/gpio/consumer.h>
>  #include <linux/workqueue.h>
>  #include <linux/device.h>
>  #include <linux/kernel.h>
> @@ -177,7 +177,7 @@
>  
>  struct adt7316_chip_info {
>  	struct adt7316_bus	bus;
> -	u16			ldac_pin;
> +	struct gpio_desc	*ldac_pin;
>  	u16			int_mask;	/* 0x2f */
>  	u8			config1;
>  	u8			config2;
> @@ -950,8 +950,8 @@ static ssize_t adt7316_store_update_DAC(struct
> device *dev,
>  		if (ret)
>  			return -EIO;
>  	} else {
> -		gpio_set_value(chip->ldac_pin, 0);
> -		gpio_set_value(chip->ldac_pin, 1);
> +		gpiod_set_value(chip->ldac_pin, 0);
> +		gpiod_set_value(chip->ldac_pin, 1);
>  	}
>  
>  	return len;
> @@ -2120,7 +2120,14 @@ int adt7316_probe(struct device *dev, struct
> adt7316_bus *bus,
>  	else
>  		return -ENODEV;
>  
> -	chip->ldac_pin = adt7316_platform_data[1];
> +	chip->ldac_pin = devm_gpiod_get(dev, "ldac",
> GPIOD_OUT_HIGH);
> +	if (IS_ERR(chip->ldac_pin)) {
> +		ret = PTR_ERR(chip->ldac_pin);
> +		dev_err(dev, "Failed to request ldac GPIO: %d\n",
> +			ret);
> +		return ret;
> +	}
> +
>  	if (chip->ldac_pin) {
>  		chip->config3 |= ADT7316_DA_EN_VIA_DAC_LDCA;
>  		if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH] staging: iio: adt7316: Switch to the gpio descriptor interface
  2018-10-22 17:14 [PATCH] staging: iio: adt7316: Switch to the gpio descriptor interface Nishad Kamdar
  2018-10-22 17:52 ` Shreeya Patel
@ 2018-10-23  5:39 ` Dan Carpenter
  1 sibling, 0 replies; 3+ messages in thread
From: Dan Carpenter @ 2018-10-23  5:39 UTC (permalink / raw)
  To: Nishad Kamdar
  Cc: Lars-Peter Clausen, devel, Michael Hennerich, linux-iio,
	Greg Kroah-Hartman, linux-kernel, Peter Meerwald-Stadler,
	Hartmut Knaack, Slawomir Stepien, Jonathan Cameron

On Mon, Oct 22, 2018 at 10:44:22PM +0530, Nishad Kamdar wrote:
> -	chip->ldac_pin = adt7316_platform_data[1];
> +	chip->ldac_pin = devm_gpiod_get(dev, "ldac", GPIOD_OUT_HIGH);
> +	if (IS_ERR(chip->ldac_pin)) {
> +		ret = PTR_ERR(chip->ldac_pin);
> +		dev_err(dev, "Failed to request ldac GPIO: %d\n",
> +			ret);

This can fit on one line:

		dev_err(dev, "Failed to request ldac GPIO: %d\n", ret);

regards,
dan carpenter


> +		return ret;
> +	}


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2018-10-23  5:40 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2018-10-22 17:14 [PATCH] staging: iio: adt7316: Switch to the gpio descriptor interface Nishad Kamdar
2018-10-22 17:52 ` Shreeya Patel
2018-10-23  5:39 ` Dan Carpenter

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