[PATCH V2 15/16] OMAP: hsmmc: add platform data for eMMC hardware reset gpio

[Tony Lindgren]

* Adrian Hunter <adrian.hunter at nokia.com> [110506 02:11]:
> eMMC may have a hardware reset line connected to a gpio,
> so pass it to the driver.
> 
> Signed-off-by: Adrian Hunter <adrian.hunter at nokia.com>

This looks safe to merge via MMC list:

Acked-by: Tony Lindgren <tony at atomide.com>

> ---
>  arch/arm/mach-omap2/hsmmc.c           |    5 +++++
>  arch/arm/mach-omap2/hsmmc.h           |    1 +
>  arch/arm/plat-omap/include/plat/mmc.h |    1 +
>  3 files changed, 7 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
> index c37ba4f..a8078c1 100644
> --- a/arch/arm/mach-omap2/hsmmc.c
> +++ b/arch/arm/mach-omap2/hsmmc.c
> @@ -472,6 +472,11 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
>  	mmc->slots[0].switch_pin = c->gpio_cd;
>  	mmc->slots[0].gpio_wp = c->gpio_wp;
>  
> +	if (c->gpio_hw_reset)
> +		mmc->slots[0].gpio_hw_reset = c->gpio_hw_reset;
> +	else
> +		mmc->slots[0].gpio_hw_reset = -EINVAL;
> +
>  	mmc->slots[0].remux = c->remux;
>  	mmc->slots[0].init_card = c->init_card;
>  
> diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h
> index 0f2a87e..b78ed41 100644
> --- a/arch/arm/mach-omap2/hsmmc.h
> +++ b/arch/arm/mach-omap2/hsmmc.h
> @@ -22,6 +22,7 @@ struct omap2_hsmmc_info {
>  	bool    nomux;          /* No default muxing for this slot */
>  	int	gpio_cd;	/* or -EINVAL */
>  	int	gpio_wp;	/* or -EINVAL */
> +	int     gpio_hw_reset;  /* hardware reset */
>  	char	*name;		/* or NULL for default */
>  	struct device *dev;	/* returned: pointer to mmc adapter */
>  	int	ocr_mask;	/* temporary HACK */
> diff --git a/arch/arm/plat-omap/include/plat/mmc.h b/arch/arm/plat-omap/include/plat/mmc.h
> index e3c9b20..9b69b7e 100644
> --- a/arch/arm/plat-omap/include/plat/mmc.h
> +++ b/arch/arm/plat-omap/include/plat/mmc.h
> @@ -119,6 +119,7 @@ struct omap_mmc_platform_data {
>  
>  		int switch_pin;			/* gpio (card detect) */
>  		int gpio_wp;			/* gpio (write protect) */
> +		int gpio_hw_reset;              /* gpio (hardware reset) */
>  
>  		int (*set_bus_mode)(struct device *dev, int slot, int bus_mode);
>  		int (*set_power)(struct device *dev, int slot,
> -- 
> 1.7.0.4
>