Re: [PATCH v4 07/10] gpio: max7360: Add MAX7360 gpio support

["Mathieu Dubois-Briand" <mathieu.dubois-briand@xxxxxxxxxxx>]

On Fri Feb 14, 2025 at 12:49 PM CET, Mathieu Dubois-Briand wrote:
> Add driver for Maxim Integrated MAX7360 GPIO/GPO controller.
>
> Two sets of GPIOs are provided by the device:
> - Up to 8 GPIOs, shared with the PWM and rotary encoder functionalities.
>   These GPIOs also provide interrupts on input changes.
> - Up to 6 GPOs, on unused keypad columns pins.
>
> Co-developed-by: Kamel Bouhara <kamel.bouhara@xxxxxxxxxxx>
> Signed-off-by: Kamel Bouhara <kamel.bouhara@xxxxxxxxxxx>
> Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@xxxxxxxxxxx>
> ---
...
> +static int max7360_gpio_probe(struct platform_device *pdev)
...
> +	} else {
> +		u32 ngpios;
> +
> +		ret = device_property_read_u32(dev, "ngpios", &ngpios);
> +		if (ret < 0) {
> +			dev_err(dev, "Missing ngpios OF property\n");
> +			return ret;
> +		}
> +
> +		gpio_config.reg_set_base = GPIO_REGMAP_ADDR(MAX7360_REG_PORTS);
> +		gpio_config.reg_mask_xlate = max7360_gpo_reg_mask_xlate;
> +		gpio_config.ngpio = ngpios;

The device_property_read_u32() and setting of gpio_config.ngpio here
will be removed, once the "gpio: regmap: Make use of 'ngpios' property"
series gets merged.

https://lore.kernel.org/linux-gpio/20250213195621.3133406-1-andriy.shevchenko@xxxxxxxxxxxxxxx/

-- 
Mathieu Dubois-Briand, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com