On Fri, May 13, 2011 at 06:13:21PM +0530, Mohan Pallaka wrote: > For chip drivers that support both pwm and non-pwm modes > would encounter compilation errors if the platform doesn't > have support for pwm though the chip is programmed to work > in non-pwm mode. Add __weak attributed pwm functions to avoid > compilation issues in these scenarios. > Russell, You seem to have authored pwm.h, do you have any objections to this change? Thanks! > Change-Id: Ia507bf659d4d67d71f135012e7d919aca6c45c6c > Signed-off-by: Mohan Pallaka <mpallaka@xxxxxxxxxxxxxx> > --- > include/linux/pwm.h | 12 +++++++----- > 1 files changed, 7 insertions(+), 5 deletions(-) > > diff --git a/include/linux/pwm.h b/include/linux/pwm.h > index 7c77575..e0c8c3f 100644 > --- a/include/linux/pwm.h > +++ b/include/linux/pwm.h > @@ -3,29 +3,31 @@ > > struct pwm_device; > > +/* Add __weak functions to support PWM */ > + > /* > * pwm_request - request a PWM device > */ > -struct pwm_device *pwm_request(int pwm_id, const char *label); > +struct pwm_device __weak *pwm_request(int pwm_id, const char *label); > > /* > * pwm_free - free a PWM device > */ > -void pwm_free(struct pwm_device *pwm); > +void __weak pwm_free(struct pwm_device *pwm); > > /* > * pwm_config - change a PWM device configuration > */ > -int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns); > +int __weak pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns); > > /* > * pwm_enable - start a PWM output toggling > */ > -int pwm_enable(struct pwm_device *pwm); > +int __weak pwm_enable(struct pwm_device *pwm); > > /* > * pwm_disable - stop a PWM output toggling > */ > -void pwm_disable(struct pwm_device *pwm); > +void __weak pwm_disable(struct pwm_device *pwm); > > #endif /* __LINUX_PWM_H */ > > -- > Sent by a consultant of the Qualcomm Innovation Center, Inc. > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum. -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
