Hi Michael,
> El 10 mar 2021, a las 19:27, Michael Walle <michael@xxxxxxxx> escribió:
>
> Am 2021-03-10 13:54, 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@xxxxxxxxx>
>> Reviewed-by: Michael Walle <michael@xxxxxxxx>
>> ---
>> v6: add comment and simplify of_node assignment
>
> Ah, I see you add the comment for the documentation. Nice. But I'd
> like to see it in the code, too. See below.
Ah, sorry for that, I thought you wanted it on the header.
Excuse me for that...
>
>> v5: switch to fwnode
>> v4: fix documentation
>> v3: introduce patch needed for properly parsing gpio-range
>> drivers/gpio/gpio-regmap.c | 1 +
>> include/linux/gpio/regmap.h | 4 ++++
>> 2 files changed, 5 insertions(+)
>> diff --git a/drivers/gpio/gpio-regmap.c b/drivers/gpio/gpio-regmap.c
>> index 5412cb3b0b2a..d4fc656e70b0 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;
>
> If there will be a new version, please add the following comment:
Right now I don’t know that either, because I’m honestly getting tired of this…
>
> /* gpiolib will use of_node of the parent if chip->of_node is NULL */
>
>>> + chip->of_node = to_of_node(config->fwnode);
>
> Otherwise, it is not obvious that config->fwnode is optional.
Yes, you’re right.
>
> -michael
>
>> + chip->of_node = to_of_node(config->fwnode);
>> 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..334dd928042b 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 fwnode_handle;
>> struct gpio_regmap;
>> struct irq_domain;
>> struct regmap;
>> @@ -16,6 +17,8 @@ struct regmap;
>> * @parent: The parent device
>> * @regmap: The regmap used to access the registers
>> * given, the name of the device is used
>> + * @fwnode: (Optional) The firmware node.
>> + * If not given, the fwnode of the parent is used.
>> * @label: (Optional) Descriptive name for GPIO controller.
>> * If not given, the name of the device is used.
>> * @ngpio: Number of GPIOs
>> @@ -57,6 +60,7 @@ struct regmap;
>> struct gpio_regmap_config {
>> struct device *parent;
>> struct regmap *regmap;
>> + struct fwnode_handle *fwnode;
>> const char *label;
>> int ngpio;
