Adds a period and a polarity member to struct pwm_lookup so that when performing
a lookup using the lookup table instead of device tree, we are able to set the
period and the polarity accordingly like what is done in
of_pwm_xlate_with_flags.
Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx>
---
drivers/pwm/core.c | 8 +++++++-
include/linux/pwm.h | 2 ++
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index a80471399c20..4b66bf09ee55 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -661,10 +661,16 @@ struct pwm_device *pwm_get(struct device *dev, const char *con_id)
}
}
+ mutex_unlock(&pwm_lookup_lock);
+
if (chip)
pwm = pwm_request_from_chip(chip, index, con_id ?: dev_id);
+ if (IS_ERR(pwm))
+ return pwm;
+
+ pwm_set_period(pwm, p->period);
+ pwm_set_polarity(pwm, p->polarity);
- mutex_unlock(&pwm_lookup_lock);
return pwm;
}
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index 4717f54051cb..2f45e2fe5b93 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -274,6 +274,8 @@ struct pwm_lookup {
unsigned int index;
const char *dev_id;
const char *con_id;
+ unsigned int period;
+ enum pwm_polarity polarity;
};
#define PWM_LOOKUP(_provider, _index, _dev_id, _con_id) \
--
1.9.1
--
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