[PATCH RFT 5/6] ARM: s3c: crag6410: use generic device properties for gpio-mmio
Charles Keepax
ckeepax at opensource.cirrus.com
Tue Jun 24 09:33:01 PDT 2025
On Tue, Jun 24, 2025 at 03:19:16PM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski at linaro.org>
>
> The GPIO device in crag6410 is registered with struct bgpio_pdata passed
> as platform_data to the gpio-mmio driver. We want to remove the
> bgpio_pdata from the kernel and the gpio-mmio driver is now also able to
> get the relevant values from the software node. Set up device properties
> and switch to using platform_device_info to register the device as
> platform_add_devices() doesn't allow us to pass device properties to the
> driver model.
>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski at linaro.org>
> ---
+ Broonie, as I think he might still use Cragganmore for testing.
But from my side I think it looks fine to me.
Reviewed-by: Charles Keepax <ckeepax at opensource.cirrus.com>
Thanks,
Charles
> arch/arm/mach-s3c/mach-crag6410.c | 17 ++++++++++-------
> 1 file changed, 10 insertions(+), 7 deletions(-)
>
> diff --git a/arch/arm/mach-s3c/mach-crag6410.c b/arch/arm/mach-s3c/mach-crag6410.c
> index e5df2cb51ab27896d9dd80571f421e959db1fd1e..028169c7debf325ab6f51475d3595b92b1307189 100644
> --- a/arch/arm/mach-s3c/mach-crag6410.c
> +++ b/arch/arm/mach-s3c/mach-crag6410.c
> @@ -252,14 +252,17 @@ static struct resource crag6410_mmgpio_resource[] = {
> [0] = DEFINE_RES_MEM_NAMED(S3C64XX_PA_XM0CSN4, 1, "dat"),
> };
>
> -static struct platform_device crag6410_mmgpio = {
> +static const struct property_entry crag6410_mmgpio_props[] = {
> + PROPERTY_ENTRY_U32("gpio-mmio,base", MMGPIO_GPIO_BASE),
> + { }
> +};
> +
> +static struct platform_device_info crag6410_mmgpio_devinfo = {
> .name = "basic-mmio-gpio",
> .id = -1,
> - .resource = crag6410_mmgpio_resource,
> - .num_resources = ARRAY_SIZE(crag6410_mmgpio_resource),
> - .dev.platform_data = &(struct bgpio_pdata) {
> - .base = MMGPIO_GPIO_BASE,
> - },
> + .res = crag6410_mmgpio_resource,
> + .num_res = ARRAY_SIZE(crag6410_mmgpio_resource),
> + .properties = crag6410_mmgpio_props,
> };
>
> static struct platform_device speyside_device = {
> @@ -373,7 +376,6 @@ static struct platform_device *crag6410_devices[] __initdata = {
> &crag6410_gpio_keydev,
> &crag6410_dm9k_device,
> &s3c64xx_device_spi0,
> - &crag6410_mmgpio,
> &crag6410_lcd_powerdev,
> &crag6410_backlight_device,
> &speyside_device,
> @@ -871,6 +873,7 @@ static void __init crag6410_machine_init(void)
>
> pwm_add_table(crag6410_pwm_lookup, ARRAY_SIZE(crag6410_pwm_lookup));
> platform_add_devices(crag6410_devices, ARRAY_SIZE(crag6410_devices));
> + platform_device_register_full(&crag6410_mmgpio_devinfo);
>
> gpio_led_register_device(-1, &gpio_leds_pdata);
>
>
> --
> 2.48.1
>
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