[U-Boot] [PATCH 1/1] net: mvneta: Add GPIO configuration support

[Dennis Gilmore]

Tested-By: Dennis Gilmore <dgilmore at redhat.com>

El mié, 05-12-2018 a las 00:39 +0800, Aditya Prayoga escribió:
> This patch add GPIO configuration support in mvneta driver.
> Driver will handle PHY reset. GPIO pins should be set in device tree.
> 
> Ported from mvpp2x
> [https://patchwork.ozlabs.org/patch/799654/]
> 
> Initial discussion to port the changes into mvneta
> [https://patchwork.ozlabs.org/patch/1005765/]
> 
> Signed-off-by: Aditya Prayoga <aditya at kobol.io>
> ---
>  drivers/net/mvneta.c | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/drivers/net/mvneta.c b/drivers/net/mvneta.c
> index 8cb04b5..333be8f 100644
> --- a/drivers/net/mvneta.c
> +++ b/drivers/net/mvneta.c
> @@ -27,6 +27,7 @@
>  #include <asm/arch/soc.h>
>  #include <linux/compat.h>
>  #include <linux/mbus.h>
> +#include <asm-generic/gpio.h>
>  
>  DECLARE_GLOBAL_DATA_PTR;
>  
> @@ -274,6 +275,9 @@ struct mvneta_port {
>  	int init;
>  	int phyaddr;
>  	struct phy_device *phydev;
> +#ifdef CONFIG_DM_GPIO
> +	struct gpio_desc phy_reset_gpio;
> +#endif
>  	struct mii_dev *bus;
>  };
>  
> @@ -1749,6 +1753,17 @@ static int mvneta_probe(struct udevice *dev)
>  	if (ret)
>  		return ret;
>  
> +#ifdef CONFIG_DM_GPIO
> +	gpio_request_by_name(dev, "phy-reset-gpios", 0,
> +			     &pp->phy_reset_gpio, GPIOD_IS_OUT);
> +
> +	if (dm_gpio_is_valid(&pp->phy_reset_gpio)) {
> +		dm_gpio_set_value(&pp->phy_reset_gpio, 1);
> +		mdelay(10);
> +		dm_gpio_set_value(&pp->phy_reset_gpio, 0);
> +	}
> +#endif
> +
>  	return board_network_enable(bus);
>  }
>