[PATCH] media: rc: pwm-ir-tx: Switch to atomic PWM API

From: Maíra Canal
Date: Sat Oct 23 2021 - 13:23:05 EST


Remove legacy PWM interface (pwm_config, pwm_enable, pwm_disable) and
replace it for the atomic PWM API.

Signed-off-by: Maíra Canal <maira.canal@xxxxxx>
---
drivers/media/rc/pwm-ir-tx.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/media/rc/pwm-ir-tx.c b/drivers/media/rc/pwm-ir-tx.c
index 4bc28d2c9cc9..dfaa6125991e 100644
--- a/drivers/media/rc/pwm-ir-tx.c
+++ b/drivers/media/rc/pwm-ir-tx.c
@@ -53,6 +53,7 @@ static int pwm_ir_tx(struct rc_dev *dev, unsigned int *txbuf,
{
struct pwm_ir *pwm_ir = dev->priv;
struct pwm_device *pwm = pwm_ir->pwm;
+ struct pwm_state state;
int i, duty, period;
ktime_t edge;
long delta;
@@ -60,15 +61,19 @@ static int pwm_ir_tx(struct rc_dev *dev, unsigned int *txbuf,
period = DIV_ROUND_CLOSEST(NSEC_PER_SEC, pwm_ir->carrier);
duty = DIV_ROUND_CLOSEST(pwm_ir->duty_cycle * period, 100);

- pwm_config(pwm, duty, period);
+ pwm_init_state(pwm, &state);
+
+ state.duty_cycle = duty;
+ state.period = period;

edge = ktime_get();

for (i = 0; i < count; i++) {
if (i % 2) // space
- pwm_disable(pwm);
+ state.enabled = false;
else
- pwm_enable(pwm);
+ state.enabled = true;
+ pwm_apply_state(pwm, &state);

edge = ktime_add_us(edge, txbuf[i]);
delta = ktime_us_delta(edge, ktime_get());
@@ -76,7 +81,8 @@ static int pwm_ir_tx(struct rc_dev *dev, unsigned int *txbuf,
usleep_range(delta, delta + 10);
}

- pwm_disable(pwm);
+ state.enabled = false;
+ pwm_apply_state(pwm, &state);

return count;
}
--
2.31.1