[U-Boot] [PATCH 2/9] mmc: sdhci: Add support for optional controller specific set_ios_post()

[Jaehoon Chung]

On 01/19/2017 04:39 PM, Stefan Roese wrote:
> Some SDHCI drivers might need to do some special controller configuration
> after the common clock set_ios() function has been called (speed / width
> configuration). This patch adds a call to the newly created function
> set_ios_port() when its configured in the host driver.
> 
> This will be used by the Xenon SDHCI controller driver used on the
> Marvell Armada 3700 and 7k/8k ARM64 SoCs.
> 
> Signed-off-by: Stefan Roese <sr at denx.de>
> Cc: Jaehoon Chung <jh80.chung at samsung.com>
> Cc: Simon Glass <sjg at chromium.org>

Reviewed-by: Jaehoon Chung <jh80.chung at samsung.com>

> ---
>  drivers/mmc/sdhci.c | 4 ++++
>  include/sdhci.h     | 1 +
>  2 files changed, 5 insertions(+)
> 
> diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
> index 081b014a17..f34f565aeb 100644
> --- a/drivers/mmc/sdhci.c
> +++ b/drivers/mmc/sdhci.c
> @@ -458,6 +458,10 @@ static int sdhci_set_ios(struct mmc *mmc)
>  
>  	sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
>  
> +	/* If available, call the driver specific "post" set_ios() function */
> +	if (host->ops && host->ops->set_ios_post)
> +		host->ops->set_ios_post(host);
> +
>  	return 0;
>  }
>  
> diff --git a/include/sdhci.h b/include/sdhci.h
> index 7544b494b1..0cd4e59d67 100644
> --- a/include/sdhci.h
> +++ b/include/sdhci.h
> @@ -235,6 +235,7 @@ struct sdhci_ops {
>  #endif
>  	int	(*get_cd)(struct sdhci_host *host);
>  	void	(*set_control_reg)(struct sdhci_host *host);
> +	void	(*set_ios_post)(struct sdhci_host *host);
>  	void	(*set_clock)(struct sdhci_host *host, u32 div);
>  };
>  
>