On 09/19/2012 07:07 PM, Pantelis Antoniou wrote:
> Add support for pinctrl mux settings in the OMAP I2C driver.
> If no such pinctl bindings are found a warning message is printed.
> 
> Signed-off-by: Pantelis Antoniou <pa...@antoniou-consulting.com>
> ---
>  drivers/i2c/busses/i2c-omap.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
> index b149e32..f722478 100644
> --- a/drivers/i2c/busses/i2c-omap.c
> +++ b/drivers/i2c/busses/i2c-omap.c
> @@ -43,6 +43,8 @@
>  #include <linux/slab.h>
>  #include <linux/i2c-omap.h>
>  #include <linux/pm_runtime.h>
> +#include <linux/pinctrl/consumer.h>
> +#include <linux/err.h>
>  
>  /* I2C controller revisions */
>  #define OMAP_I2C_OMAP1_REV_2         0x20
> @@ -1057,6 +1059,7 @@ omap_i2c_probe(struct platform_device *pdev)
>       const struct of_device_id *match;
>       int irq;
>       int r;
> +     struct pinctrl *pinctrl;
>  
>       /* NOTE: driver uses the static register mapping */
>       mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> @@ -1197,6 +1200,10 @@ omap_i2c_probe(struct platform_device *pdev)
>  
>       of_i2c_register_devices(adap);
>  
> +     pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
> +     if (IS_ERR(pinctrl))
> +             dev_warn(dev->dev, "pins are not configured from the driver\n");

Can you use &pdev->dev for the dev_warn() here?
the dev->dev is quite confusing especially since you used &pdev->dev for the
pinctrl call.

> +
>       pm_runtime_mark_last_busy(dev->dev);
>       pm_runtime_put_autosuspend(dev->dev);
>  
> 


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