[PATCH] mtd: mxc_nand: Make use of supplied pinctrl data

[Sascha Hauer]

On Mon, Jan 07, 2013 at 03:28:05PM +0100, Marek Vasut wrote:
> The MXC NAND driver doesn't consider the pinctrl data supplied via DT, which
> will result in NAND pins not being properly configured.
> 
> Make the driver use pinctrl, but to prevent breakage on various boards, do not
> fail if the pinctrl data are not available, only print a warning message.
> 
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Artem Bityutskiy <artem.bityutskiy at linux.intel.com>
> Cc: Lothar Waßmann <LW at KARO-electronics.de>
> Cc: Sascha Hauer <s.hauer at pengutronix.de>

Acked-by: Sascha Hauer <s.hauer at pengutronix.de>

Sascha

> ---
>  drivers/mtd/nand/mxc_nand.c |    6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
> index 45204e4..ed805fb 100644
> --- a/drivers/mtd/nand/mxc_nand.c
> +++ b/drivers/mtd/nand/mxc_nand.c
> @@ -34,6 +34,7 @@
>  #include <linux/completion.h>
>  #include <linux/of_device.h>
>  #include <linux/of_mtd.h>
> +#include <linux/pinctrl/consumer.h>
>  
>  #include <asm/mach/flash.h>
>  #include <linux/platform_data/mtd-mxc_nand.h>
> @@ -1385,6 +1386,7 @@ static int mxcnd_probe(struct platform_device *pdev)
>  	struct mtd_info *mtd;
>  	struct mxc_nand_host *host;
>  	struct resource *res;
> +	struct pinctrl *pinctrl;
>  	int err = 0;
>  
>  	/* Allocate memory for MTD device structure and private data */
> @@ -1449,6 +1451,10 @@ static int mxcnd_probe(struct platform_device *pdev)
>  	if (!res)
>  		return -ENODEV;
>  
> +	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
> +	if (IS_ERR(pinctrl))
> +		dev_warn(&pdev->dev, "No PINCTRL data for the NAND driver!\n");
> +
>  	host->base = devm_request_and_ioremap(&pdev->dev, res);
>  	if (!host->base)
>  		return -ENOMEM;
> -- 
> 1.7.10.4
> 
> 
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