All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Maíra Canal" <maira.canal@usp.br>
To: sean@mess.org, mchehab@kernel.org, thierry.reding@gmail.com,
	u.kleine-koenig@pengutronix.de, lee.jones@linaro.org
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-pwm@vger.kernel.org
Subject: [PATCH v3] media: rc: pwm-ir-tx: Switch to atomic PWM API
Date: Sun, 24 Oct 2021 07:33:47 -0300	[thread overview]
Message-ID: <YXU2i0FtAGDRCMSu@fedora> (raw)

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@usp.br>
---
V1 -> V2: Assign variables directly and simplify conditional statement
V2 -> V3: Fix declaration of undeclared variable
---
 drivers/media/rc/pwm-ir-tx.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/media/rc/pwm-ir-tx.c b/drivers/media/rc/pwm-ir-tx.c
index 4bc28d2c9cc9..e1f348a962e8 100644
--- a/drivers/media/rc/pwm-ir-tx.c
+++ b/drivers/media/rc/pwm-ir-tx.c
@@ -53,22 +53,21 @@ 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;
-	int i, duty, period;
+	struct pwm_state state;
+	int i;
 	ktime_t edge;
 	long delta;
 
-	period = DIV_ROUND_CLOSEST(NSEC_PER_SEC, pwm_ir->carrier);
-	duty = DIV_ROUND_CLOSEST(pwm_ir->duty_cycle * period, 100);
+	pwm_init_state(pwm, &state);
 
-	pwm_config(pwm, duty, period);
+	state.period = DIV_ROUND_CLOSEST(NSEC_PER_SEC, pwm_ir->carrier);
+	state.duty_cycle = DIV_ROUND_CLOSEST(pwm_ir->duty_cycle * state.period, 100);
 
 	edge = ktime_get();
 
 	for (i = 0; i < count; i++) {
-		if (i % 2) // space
-			pwm_disable(pwm);
-		else
-			pwm_enable(pwm);
+		state.enabled = !(i % 2);
+		pwm_apply_state(pwm, &state);
 
 		edge = ktime_add_us(edge, txbuf[i]);
 		delta = ktime_us_delta(edge, ktime_get());
@@ -76,7 +75,8 @@ 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


             reply	other threads:[~2021-10-24 10:33 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-24 10:33 Maíra Canal [this message]
2021-10-25  6:08 ` [PATCH v3] media: rc: pwm-ir-tx: Switch to atomic PWM API Uwe Kleine-König
2021-10-27  6:07 ` kernel test robot
2021-10-27  6:07   ` kernel test robot
2021-10-27  6:15   ` Uwe Kleine-König
2021-10-27  6:15     ` Uwe Kleine-König
2021-10-27  7:32     ` Sean Young
2021-10-27  7:32       ` Sean Young
2021-10-27 12:38       ` Maíra Canal
2021-10-27 12:43         ` Maíra Canal
2021-10-27 12:43           ` Maíra Canal
2021-10-27 12:48           ` Sean Young
2021-10-27 12:48             ` Sean Young

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=YXU2i0FtAGDRCMSu@fedora \
    --to=maira.canal@usp.br \
    --cc=lee.jones@linaro.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-media@vger.kernel.org \
    --cc=linux-pwm@vger.kernel.org \
    --cc=mchehab@kernel.org \
    --cc=sean@mess.org \
    --cc=thierry.reding@gmail.com \
    --cc=u.kleine-koenig@pengutronix.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.