[PATCH v5 38/46] input: misc: pwm-beeper: switch to the atomic PWM API

Boris Brezillon
2016-03-30T20:04:01Z

pwm_config/enable/disable() have been deprecated and should be replaced
by pwm_apply_state().

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
drivers/input/misc/pwm-beeper.c | 46 +++++++++++++++++++++++++++--------------
1 file changed, 31 insertions(+), 15 deletions(-)

diff --git a/drivers/input/misc/pwm-beeper.c b/drivers/input/misc/pwm-beeper.c
index f2261ab..36c9897 100644
--- a/drivers/input/misc/pwm-beeper.c
+++ b/drivers/input/misc/pwm-beeper.c
@@ -34,7 +34,7 @@ static int pwm_beeper_event(struct input_dev *input,
{
int ret = 0;
struct pwm_beeper *beeper = input_get_drvdata(input);
- unsigned long period;
+ struct pwm_state pstate;

if (type != EV_SND || value < 0)
return -EINVAL;
@@ -49,19 +49,22 @@ static int pwm_beeper_event(struct input_dev *input,
return -EINVAL;
}

+ pwm_get_state(beeper->pwm, &pstate);
+
if (value == 0) {
- pwm_disable(beeper->pwm);
+ pstate.enabled = false;
} else {
- period = HZ_TO_NANOSECONDS(value);
- ret = pwm_config(beeper->pwm, period / 2, period);
- if (ret)
- return ret;
- ret = pwm_enable(beeper->pwm);
- if (ret)
- return ret;
- beeper->period = period;
+ pstate.enabled = false;
+ pstate.period = HZ_TO_NANOSECONDS(value);
+ pstate.duty_cycle = pstate.period / 2;
}

+ ret = pwm_apply_state(beeper->pwm, &pstate);
+ if (ret)
+ return ret;
+
+ beeper->period = value ? pstate.period : 0;
+
return 0;
}

@@ -132,10 +135,13 @@ err_free:
static int pwm_beeper_remove(struct platform_device *pdev)
{
struct pwm_beeper *beeper = platform_get_drvdata(pdev);
+ struct pwm_state pstate;

input_unregister_device(beeper->input);

- pwm_disable(beeper->pwm);
+ pwm_get_state(beeper->pwm, &pstate);
+ pstate.enabled = false;
+ pwm_apply_state(beeper->pwm, &pstate);
pwm_free(beeper->pwm);

kfree(beeper);
@@ -147,8 +153,13 @@ static int __maybe_unused pwm_beeper_suspend(struct device *dev)
{
struct pwm_beeper *beeper = dev_get_drvdata(dev);

- if (beeper->period)
- pwm_disable(beeper->pwm);
+ if (beeper->period) {
+ struct pwm_state pstate;
+
+ pwm_get_state(beeper->pwm, &pstate);
+ pstate.enabled = false;
+ pwm_apply_state(beeper->pwm, &pstate);
+ }

return 0;
}
@@ -158,8 +169,13 @@ static int __maybe_unused pwm_beeper_resume(struct device *dev)
struct pwm_beeper *beeper = dev_get_drvdata(dev);

if (beeper->period) {
- pwm_config(beeper->pwm, beeper->period / 2, beeper->period);
- pwm_enable(beeper->pwm);
+ struct pwm_state pstate;
+
+ pwm_get_state(beeper->pwm, &pstate);
+ pstate.period = beeper->period;
+ pstate.duty_cycle = beeper->period / 2;
+ pstate.enabled = true;
+ pwm_apply_state(beeper->pwm, &pstate);
}

return 0;
--
2.5.0