On Mon, Nov 19, 2012 at 11:21:12PM +0530, Philip, Avinash wrote:
[...]
> diff --git a/include/linux/pwm.h b/include/linux/pwm.h
> index 112b314..70756f2 100644
> --- a/include/linux/pwm.h
> +++ b/include/linux/pwm.h
> @@ -78,6 +78,10 @@ enum {
> PWMF_ENABLED = 1 << 1,
> };
>
> +/* flags in the third cell of the DT PWM specifier */
> +#define PWM_SPEC_POLARITY (1 << 0)
> +
> +
This doesn't belong in this header. It should go into core.c in
drivers/pwm.
> struct pwm_device {
> const char *label;
> unsigned long flags;
> @@ -176,6 +180,8 @@ void pwm_put(struct pwm_device *pwm);
>
> struct pwm_device *devm_pwm_get(struct device *dev, const char *consumer);
> void devm_pwm_put(struct device *dev, struct pwm_device *pwm);
> +struct pwm_device *of_pwm_xlate_with_flags(struct pwm_chip *pc,
> + const struct of_phandle_args *args);
The placement of this prototype is odd. I think a better place would be
between pwm_request_from_chip() and pwm_get(), separated by blank lines
to make it stand out as an OF specific function.
> #else
> static inline int pwm_set_chip_data(struct pwm_device *pwm, void *data)
> {
> @@ -223,6 +229,12 @@ static inline struct pwm_device *devm_pwm_get(struct device *dev,
> static inline void devm_pwm_put(struct device *dev, struct pwm_device *pwm)
> {
> }
> +
> +static inline struct pwm_device *of_pwm_xlate_with_flags(struct pwm_chip *pc,
> + const struct of_phandle_args *args)
> +{
> + return ERR_PTR(-ENODEV);
> +}
This function should only be used by PWM drivers and therefore doesn't
need to have a dummy implementation such as this.
Thierry
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