[PATCH v3 01/14] gpio: regmap: set gpio_chip of_node

[Álvaro Fernández Rojas]

Hi Linus,

Do you want me to send v4 with these changes?
Or maybe just this single patch?

Best regards,
Álvaro.

> El 3 mar 2021, a las 17:08, Michael Walle <michael at walle.cc> escribió:
> 
> Am 2021-03-03 15:22, schrieb Álvaro Fernández Rojas:
>> This is needed for properly registering gpio regmap as a child of a regmap
>> pin controller.
>> Signed-off-by: Álvaro Fernández Rojas <noltari at gmail.com>
>> ---
>> v3: introduce patch needed for properly parsing gpio-ranges.
>> drivers/gpio/gpio-regmap.c  | 1 +
>> include/linux/gpio/regmap.h | 3 +++
>> 2 files changed, 4 insertions(+)
>> diff --git a/drivers/gpio/gpio-regmap.c b/drivers/gpio/gpio-regmap.c
>> index 5412cb3b0b2a..752ccd780b7d 100644
>> --- a/drivers/gpio/gpio-regmap.c
>> +++ b/drivers/gpio/gpio-regmap.c
>> @@ -249,6 +249,7 @@ struct gpio_regmap *gpio_regmap_register(const
>> struct gpio_regmap_config *config
>> 	chip = &gpio->gpio_chip;
>> 	chip->parent = config->parent;
>> +	chip->of_node = config->of_node;
> 
> chip->of_node = config->of_node ?: dev_of_node(config->parent);
> 
> As mentioned in my previous reply in this thread, for clarity
> reasons.
> 
>> 	chip->base = -1;
>> 	chip->ngpio = config->ngpio;
>> 	chip->names = config->names;
>> diff --git a/include/linux/gpio/regmap.h b/include/linux/gpio/regmap.h
>> index ad76f3d0a6ba..f6e638e32d2a 100644
>> --- a/include/linux/gpio/regmap.h
>> +++ b/include/linux/gpio/regmap.h
>> @@ -4,6 +4,7 @@
>> #define _LINUX_GPIO_REGMAP_H
>> struct device;
>> +struct device_node;
>> struct gpio_regmap;
>> struct irq_domain;
>> struct regmap;
>> @@ -14,6 +15,7 @@ struct regmap;
>> /**
>>  * struct gpio_regmap_config - Description of a generic regmap gpio_chip.
>>  * @parent:		The parent device
>> + * @of_node:		The device node
> 
> Please add "(Optional)" and move it below @regmap. This should also
> mention that if not supplied parent->of_node is used.
> 
>>  * @regmap:		The regmap used to access the registers
>>  *			given, the name of the device is used
>>  * @label:		(Optional) Descriptive name for GPIO controller.
>> @@ -56,6 +58,7 @@ struct regmap;
>>  */
>> struct gpio_regmap_config {
>> 	struct device *parent;
>> +	struct device_node *of_node;
>> 	struct regmap *regmap;
>> 	const char *label;
> 
> With these changes:
> Reviewed-by: Michael Walle <michael at walle.cc>
> 
> -michael