[PATCH 1/2] pwm: Add stubs for pwm operations
From: Mohan Pallaka <hidden>
Date: 2011-05-26 11:31:26
Also in:
linux-arm-msm, linux-i2c, linux-input, lkml
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:quoted
On 5/20/2011 10:29 AM, Mohan Pallaka wrote:quoted
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<redacted> --- 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 at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html