| Message ID | 1305867584-31929-1-git-send-email-mpallaka@codeaurora.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Ping. Hi Russell, please take sometime to review this patch. Thanks, Mohan. On 5/21/2011 8:00 PM, Mohan Pallaka wrote: > On 5/20/2011 10:29 AM, Mohan Pallaka wrote: >> Chip drivers that support both pwm and non-pwm modes >> would encounter compilation errors if the platform doesn't >> have support for pwm, even though the chip is programmed >> to work in non-pwm mode. Add stubs for pwm functions to >> avoid compilation errors in these scenarios. >> >> Signed-off-by: Mohan Pallaka<mpallaka@codeaurora.org> >> --- >> include/linux/pwm.h | 23 +++++++++++++++++++++++ >> 1 files changed, 23 insertions(+), 0 deletions(-) >> >> diff --git a/include/linux/pwm.h b/include/linux/pwm.h >> index 7c77575..54877f6 100644 >> --- a/include/linux/pwm.h >> +++ b/include/linux/pwm.h >> @@ -3,6 +3,7 @@ >> >> struct pwm_device; >> >> +#if defined(CONFIG_HAVE_PWM) >> /* >> * pwm_request - request a PWM device >> */ >> @@ -28,4 +29,26 @@ int pwm_enable(struct pwm_device *pwm); >> */ >> void pwm_disable(struct pwm_device *pwm); >> >> +#else >> + >> +struct pwm_device *pwm_request(int pwm_id, const char *label) >> +{ >> + return NULL; >> +} >> + >> +void pwm_free(struct pwm_device *pwm) { } >> + >> +int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns) >> +{ >> + return -EINVAL; >> +} >> + >> +int pwm_enable(struct pwm_device *pwm) >> +{ >> + return -EINVAL; >> +} >> + >> +void pwm_disable(struct pwm_device *pwm) { } >> + >> +#endif /* CONFIG_HAVE_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. > Hi Russell, please review this patch. > > --Mohan > -- > To unsubscribe from this list: send the line "unsubscribe > linux-arm-msm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi Russell, please let me know if this patch looks okay for you. Thanks, Mohan. On 5/24/2011 4:34 PM, Mohan Pallaka wrote: > Ping. > > Hi Russell, please take sometime to review this patch. > > Thanks, Mohan. > > On 5/21/2011 8:00 PM, Mohan Pallaka wrote: >> On 5/20/2011 10:29 AM, Mohan Pallaka wrote: >>> Chip drivers that support both pwm and non-pwm modes >>> would encounter compilation errors if the platform doesn't >>> have support for pwm, even though the chip is programmed >>> to work in non-pwm mode. Add stubs for pwm functions to >>> avoid compilation errors in these scenarios. >>> >>> Signed-off-by: Mohan Pallaka<mpallaka@codeaurora.org> >>> --- >>> include/linux/pwm.h | 23 +++++++++++++++++++++++ >>> 1 files changed, 23 insertions(+), 0 deletions(-) >>> >>> diff --git a/include/linux/pwm.h b/include/linux/pwm.h >>> index 7c77575..54877f6 100644 >>> --- a/include/linux/pwm.h >>> +++ b/include/linux/pwm.h >>> @@ -3,6 +3,7 @@ >>> >>> struct pwm_device; >>> >>> +#if defined(CONFIG_HAVE_PWM) >>> /* >>> * pwm_request - request a PWM device >>> */ >>> @@ -28,4 +29,26 @@ int pwm_enable(struct pwm_device *pwm); >>> */ >>> void pwm_disable(struct pwm_device *pwm); >>> >>> +#else >>> + >>> +struct pwm_device *pwm_request(int pwm_id, const char *label) >>> +{ >>> + return NULL; >>> +} >>> + >>> +void pwm_free(struct pwm_device *pwm) { } >>> + >>> +int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns) >>> +{ >>> + return -EINVAL; >>> +} >>> + >>> +int pwm_enable(struct pwm_device *pwm) >>> +{ >>> + return -EINVAL; >>> +} >>> + >>> +void pwm_disable(struct pwm_device *pwm) { } >>> + >>> +#endif /* CONFIG_HAVE_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. >> Hi Russell, please review this patch. >> >> --Mohan >> -- >> To unsubscribe from this list: send the line "unsubscribe >> linux-arm-msm" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >
diff --git a/include/linux/pwm.h b/include/linux/pwm.h index 7c77575..54877f6 100644 --- a/include/linux/pwm.h +++ b/include/linux/pwm.h @@ -3,6 +3,7 @@ struct pwm_device; +#if defined(CONFIG_HAVE_PWM) /* * pwm_request - request a PWM device */ @@ -28,4 +29,26 @@ int pwm_enable(struct pwm_device *pwm); */ void pwm_disable(struct pwm_device *pwm); +#else + +struct pwm_device *pwm_request(int pwm_id, const char *label) +{ + return NULL; +} + +void pwm_free(struct pwm_device *pwm) { } + +int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns) +{ + return -EINVAL; +} + +int pwm_enable(struct pwm_device *pwm) +{ + return -EINVAL; +} + +void pwm_disable(struct pwm_device *pwm) { } + +#endif /* CONFIG_HAVE_PWM */ #endif /* __LINUX_PWM_H */
Chip drivers that support both pwm and non-pwm modes would encounter compilation errors if the platform doesn't have support for pwm, even though the chip is programmed to work in non-pwm mode. Add stubs for pwm functions to avoid compilation errors in these scenarios. Signed-off-by: Mohan Pallaka <mpallaka@codeaurora.org> --- include/linux/pwm.h | 23 +++++++++++++++++++++++ 1 files changed, 23 insertions(+), 0 deletions(-) -- Sent by a consultant of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.