linux-kernel - [PATCH 22/44] media: Switch to use hrtimer

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Message-Id: <2290f8a566605247d9842575dc3e6a630a1c1a72.1729865485.git.namcao@linutronix.de>
Date: Mon, 28 Oct 2024 08:34:58 +0100
From: Nam Cao <namcao@...utronix.de>
To: Anna-Maria Behnsen <anna-maria@...utronix.de>,
	Frederic Weisbecker <frederic@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andreas Hindborg <a.hindborg@...nel.org>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Miguel Ojeda <ojeda@...nel.org>,
	Kees Cook <kees@...nel.org>,
	linux-kernel@...r.kernel.org
Cc: Nam Cao <namcao@...utronix.de>,
	Hans Verkuil <hverkuil-cisco@...all.nl>
Subject: [PATCH 22/44] media: Switch to use hrtimer_setup()

There is a newly introduced hrtimer_setup() which will replace
hrtimer_init(). This new function is similar to the old one, except that it
also sanity-checks and initializes the timer's callback function.

Switch to use this new function.

Patch was created by using Coccinelle.

Signed-off-by: Nam Cao <namcao@...utronix.de>
---
Cc: Hans Verkuil <hverkuil-cisco@...all.nl>
---
 drivers/media/cec/core/cec-pin.c                     | 3 +--
 drivers/media/pci/cx88/cx88-input.c                  | 3 +--
 drivers/media/platform/chips-media/wave5/wave5-vpu.c | 4 ++--
 drivers/media/rc/pwm-ir-tx.c                         | 3 +--
 4 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/media/cec/core/cec-pin.c b/drivers/media/cec/core/cec-pin.c
index 330d5d5d86ab..fe1cf365a25c 100644
--- a/drivers/media/cec/core/cec-pin.c
+++ b/drivers/media/cec/core/cec-pin.c
@@ -1345,9 +1345,8 @@ struct cec_adapter *cec_pin_allocate_adapter(const struct cec_pin_ops *pin_ops,
 	if (pin == NULL)
 		return ERR_PTR(-ENOMEM);
 	pin->ops = pin_ops;
-	hrtimer_init(&pin->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	atomic_set(&pin->work_pin_num_events, 0);
-	pin->timer.function = cec_pin_timer;
+	hrtimer_setup(&pin->timer, cec_pin_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	init_waitqueue_head(&pin->kthread_waitq);
 	pin->tx_custom_low_usecs = CEC_TIM_CUSTOM_DEFAULT;
 	pin->tx_custom_high_usecs = CEC_TIM_CUSTOM_DEFAULT;
diff --git a/drivers/media/pci/cx88/cx88-input.c b/drivers/media/pci/cx88/cx88-input.c
index a04a1d33fadb..b9f2c14d62b4 100644
--- a/drivers/media/pci/cx88/cx88-input.c
+++ b/drivers/media/pci/cx88/cx88-input.c
@@ -190,8 +190,7 @@ static int __cx88_ir_start(void *priv)
 	ir = core->ir;
 
 	if (ir->polling) {
-		hrtimer_init(&ir->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-		ir->timer.function = cx88_ir_work;
+		hrtimer_setup(&ir->timer, cx88_ir_work, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 		hrtimer_start(&ir->timer,
 			      ktime_set(0, ir->polling * 1000000),
 			      HRTIMER_MODE_REL);
diff --git a/drivers/media/platform/chips-media/wave5/wave5-vpu.c b/drivers/media/platform/chips-media/wave5/wave5-vpu.c
index 7273254ecb03..d7795d7f8a35 100644
--- a/drivers/media/platform/chips-media/wave5/wave5-vpu.c
+++ b/drivers/media/platform/chips-media/wave5/wave5-vpu.c
@@ -229,8 +229,8 @@ static int wave5_vpu_probe(struct platform_device *pdev)
 	dev->irq = platform_get_irq(pdev, 0);
 	if (dev->irq < 0) {
 		dev_err(&pdev->dev, "failed to get irq resource, falling back to polling\n");
-		hrtimer_init(&dev->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_PINNED);
-		dev->hrtimer.function = &wave5_vpu_timer_callback;
+		hrtimer_setup(&dev->hrtimer, &wave5_vpu_timer_callback, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL_PINNED);
 		dev->worker = kthread_create_worker(0, "vpu_irq_thread");
 		if (IS_ERR(dev->worker)) {
 			dev_err(&pdev->dev, "failed to create vpu irq worker\n");
diff --git a/drivers/media/rc/pwm-ir-tx.c b/drivers/media/rc/pwm-ir-tx.c
index fe368aebbc13..84533fdd61aa 100644
--- a/drivers/media/rc/pwm-ir-tx.c
+++ b/drivers/media/rc/pwm-ir-tx.c
@@ -172,8 +172,7 @@ static int pwm_ir_probe(struct platform_device *pdev)
 		rcdev->tx_ir = pwm_ir_tx_sleep;
 	} else {
 		init_completion(&pwm_ir->tx_done);
-		hrtimer_init(&pwm_ir->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-		pwm_ir->timer.function = pwm_ir_timer;
+		hrtimer_setup(&pwm_ir->timer, pwm_ir_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 		rcdev->tx_ir = pwm_ir_tx_atomic;
 	}
 
-- 
2.39.5