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

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Message-ID: <YXRE5i9xXpwSjicO@fedora>
Date:   Sat, 23 Oct 2021 14:22:46 -0300
From:   Maíra Canal <maira.canal@....br>
To:     sean@...s.org, mchehab@...nel.org, thierry.reding@...il.com,
        u.kleine-koenig@...gutronix.de, lee.jones@...aro.org
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pwm@...r.kernel.org
Subject: [PATCH] media: rc: pwm-ir-tx: Switch to atomic PWM API

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@....br>
---
 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