[PATCH v1 1/1] leds: tca6507: Get rid of duplicate of_node assignment

[PATCH v1 1/1] leds: tca6507: Get rid of duplicate of_node assignment

[Andy Shevchenko]

GPIO library does copy the of_node from the parent device of
the GPIO chip, there is no need to repeat this in the individual
drivers. Remove assignment here.

For the details one may look into the of_gpio_dev_init() implementation.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/leds/leds-tca6507.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/leds/leds-tca6507.c b/drivers/leds/leds-tca6507.c
index de8eed9b667d..1473ced8664c 100644
--- a/drivers/leds/leds-tca6507.c
+++ b/drivers/leds/leds-tca6507.c
@@ -641,9 +641,6 @@ static int tca6507_probe_gpios(struct device *dev,
 	tca->gpio.direction_output = tca6507_gpio_direction_output;
 	tca->gpio.set = tca6507_gpio_set_value;
 	tca->gpio.parent = dev;
-#ifdef CONFIG_OF_GPIO
-	tca->gpio.of_node = of_node_get(dev_of_node(dev));
-#endif
 	err = gpiochip_add_data(&tca->gpio, tca);
 	if (err) {
 		tca->gpio.ngpio = 0;
-- 
2.33.0

Re: [PATCH v1 1/1] leds: tca6507: Get rid of duplicate of_node assignment

[Pavel Machek]

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Hi!

> GPIO library does copy the of_node from the parent device of
> the GPIO chip, there is no need to repeat this in the individual
> drivers. Remove assignment here.
> 
> For the details one may look into the of_gpio_dev_init()
> implementation.

So... where do you see of_gpio_dev_init called in this particular
case?

Best regards,
								Pavel
-- 
http://www.livejournal.com/~pavelmachek

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Re: [PATCH v1 1/1] leds: tca6507: Get rid of duplicate of_node assignment

[Andy Shevchenko]

On Fri, Dec 03, 2021 at 08:31:21AM +0100, Pavel Machek wrote:
> Hi!
> 
> > GPIO library does copy the of_node from the parent device of
> > the GPIO chip, there is no need to repeat this in the individual
> > drivers. Remove assignment here.
> > 
> > For the details one may look into the of_gpio_dev_init()
> > implementation.
> 
> So... where do you see of_gpio_dev_init called in this particular
> case?

Inside GPIO library as stated in the commit message.

  --> tca6507_probe_gpios()
    --> gpiochip_add_data()
      --> gpiochip_add_data_with_key()
        --> of_gpio_dev_init()


-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH v1 1/1] leds: tca6507: Get rid of duplicate of_node assignment

[Andy Shevchenko]

On Fri, Dec 03, 2021 at 02:18:42PM +0200, Andy Shevchenko wrote:
> On Fri, Dec 03, 2021 at 08:31:21AM +0100, Pavel Machek wrote:

...

> > > For the details one may look into the of_gpio_dev_init()
> > > implementation.
> > 
> > So... where do you see of_gpio_dev_init called in this particular
> > case?
> 
> Inside GPIO library as stated in the commit message.
> 
>   --> tca6507_probe_gpios()
>     --> gpiochip_add_data()
>       --> gpiochip_add_data_with_key()
>         --> of_gpio_dev_init()

Pavel, do you have any other concerns? Can this be applied?

-- 
With Best Regards,
Andy Shevchenko