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From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
To: Thierry Reding <thierry.reding@gmail.com>
Cc: kernel@pengutronix.de, linux-pwm@vger.kernel.org
Subject: [PATCH v3 108/108] WIP: pwm: Add support for pwmchip devices for faster and easier userspace access
Date: Tue, 21 Nov 2023 14:50:50 +0100	[thread overview]
Message-ID: <20231121134901.208535-109-u.kleine-koenig@pengutronix.de> (raw)
In-Reply-To: <20231121134901.208535-1-u.kleine-koenig@pengutronix.de>

Todo:
 - reshuffle order of functions to get rid of forward decl of __pwm_apply_state
 - implement PWM_IOCTL_GET ioctls
 - drop debug output
 - maybe merge core.c and sysfs.c (separate commit?)

Not-yet-signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
 drivers/pwm/core.c       | 251 ++++++++++++++++++++++++++++++++++-----
 drivers/pwm/sysfs.c      |  19 ++-
 include/linux/pwm.h      |   2 +
 include/uapi/linux/pwm.h |  23 ++++
 4 files changed, 267 insertions(+), 28 deletions(-)
 create mode 100644 include/uapi/linux/pwm.h

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 8dbc79f7218c..465ed7c5a43c 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -21,6 +21,8 @@
 
 #include <dt-bindings/pwm/pwm.h>
 
+#include <uapi/linux/pwm.h>
+
 #define CREATE_TRACE_POINTS
 #include <trace/events/pwm.h>
 
@@ -277,6 +279,189 @@ struct pwm_chip *devm_pwmchip_alloc(struct device *parent, unsigned int npwm, si
 }
 EXPORT_SYMBOL_GPL(devm_pwmchip_alloc);
 
+struct pwm_cdev_data {
+	struct pwm_chip *chip;
+	struct pwm_device *pwm[];
+};
+
+static int pwm_cdev_open(struct inode *inode, struct file *file)
+{
+	struct pwm_chip *chip = container_of(inode->i_cdev, struct pwm_chip, cdev);
+	struct pwm_cdev_data *cdata;
+	int ret;
+
+	pr_info("%s:%d\n", __func__, __LINE__);
+	mutex_lock(&pwm_lock);
+
+	if (!chip->operational) {
+		ret = -ENXIO;
+		goto out_unlock;
+	}
+
+	cdata = kzalloc(struct_size(cdata, pwm, chip->npwm), GFP_KERNEL);
+	if (!cdata) {
+		ret = -ENOMEM;
+		goto out_unlock;
+	}
+
+	cdata->chip = chip;
+
+	file->private_data = cdata;
+
+	ret = nonseekable_open(inode, file);
+
+out_unlock:
+	mutex_unlock(&pwm_lock);
+
+	return ret;
+}
+
+static int pwm_cdev_release(struct inode *inode, struct file *file)
+{
+	struct pwm_cdev_data *cdata = file->private_data;
+	unsigned int i;
+
+	for (i = 0; i < cdata->chip->npwm; ++i) {
+		if (cdata->pwm[i])
+			pwm_put(cdata->pwm[i]);
+	}
+	kfree(cdata);
+
+	return 0;
+}
+
+static int __pwm_apply_state(struct pwm_chip *chip, struct pwm_device *pwm, const struct pwm_state *state);
+
+static int pwm_cdev_request(struct pwm_cdev_data *cdata, unsigned int hwpwm)
+{
+	struct pwm_chip *chip = cdata->chip;
+
+	if (hwpwm >= chip->npwm)
+		return -EINVAL;
+
+	if (!cdata->pwm[hwpwm]) {
+		struct pwm_device *pwm = &chip->pwms[hwpwm];
+		int ret;
+
+		ret = pwm_device_request(pwm, "pwm-cdev");
+		if (ret < 0)
+			return ret;
+
+		cdata->pwm[hwpwm] = pwm;
+	}
+
+	return 0;
+}
+
+static int pwm_cdev_free(struct pwm_cdev_data *cdata, unsigned int hwpwm)
+{
+	struct pwm_chip *chip = cdata->chip;
+
+	if (hwpwm >= chip->npwm)
+		return -EINVAL;
+
+	if (cdata->pwm[hwpwm]) {
+		struct pwm_device *pwm = cdata->pwm[hwpwm];
+
+		pwm_put(pwm);
+
+		cdata->pwm[hwpwm] = NULL;
+	}
+
+	return 0;
+}
+
+static long pwm_cdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	int ret = 0;
+	struct pwm_cdev_data *cdata = file->private_data;
+	struct pwm_chip *chip = cdata->chip;
+
+	mutex_lock(&pwm_lock);
+
+	if (!chip->operational) {
+		ret = -ENXIO;
+		goto out_unlock;
+	}
+
+	switch (cmd) {
+	case PWM_IOCTL_GET_NUM_PWMS:
+		ret = chip->npwm;
+		break;
+
+	case PWM_IOCTL_REQUEST:
+		{
+			unsigned int hwpwm;
+
+			ret = get_user(hwpwm, (unsigned int __user *)arg);
+			if (ret)
+				goto out_unlock;
+
+			ret = pwm_cdev_request(cdata, hwpwm);
+		}
+		break;
+
+	case PWM_IOCTL_FREE:
+		{
+			unsigned int hwpwm;
+
+			ret = get_user(hwpwm, (unsigned int __user *)arg);
+			if (ret)
+				goto out_unlock;
+
+			ret = pwm_cdev_free(cdata, hwpwm);
+
+		}
+		break;
+
+	case PWM_IOCTL_APPLY:
+		{
+			struct pwmchip_state cstate;
+			struct pwm_state state;
+			struct pwm_device *pwm;
+
+			ret = copy_from_user(&cstate, (struct pwmchip_state __user *)arg, sizeof(cstate));
+			if (ret)
+				goto out_unlock;
+
+			ret = pwm_cdev_request(cdata, cstate.hwpwm);
+			if (ret)
+				goto out_unlock;
+
+			pwm = cdata->pwm[cstate.hwpwm];
+
+			state.period = cstate.period;
+			state.duty_cycle = cstate.duty_cycle;
+			if (cstate.duty_offset >= cstate.period - cstate.duty_cycle)
+				state.polarity = PWM_POLARITY_INVERSED;
+			else
+				state.polarity = PWM_POLARITY_NORMAL;
+			state.enabled = cstate.period > 0;
+
+			ret = __pwm_apply_state(chip, pwm, &state);
+	        }
+		break;
+
+	default:
+		ret = -ENOTTY;
+		break;
+	}
+out_unlock:
+	mutex_unlock(&pwm_lock);
+
+	return ret;
+}
+
+static const struct file_operations pwm_cdev_fileops = {
+	.open = pwm_cdev_open,
+	.release = pwm_cdev_release,
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+	.unlocked_ioctl = pwm_cdev_ioctl,
+};
+
+extern dev_t pwm_devt;
+
 /**
  * __pwmchip_add() - register a new PWM chip
  * @chip: the PWM chip to add
@@ -324,7 +509,13 @@ int __pwmchip_add(struct pwm_chip *chip, struct module *owner)
 
 	mutex_init(&chip->lock);
 
-	ret = device_add(&chip->dev);
+	if (chip->id < 256)
+		chip->dev.devt = MKDEV(MAJOR(pwm_devt), chip->id);
+
+	cdev_init(&chip->cdev, &pwm_cdev_fileops);
+	chip->cdev.owner = owner;
+
+	ret = cdev_device_add(&chip->cdev, &chip->dev);
 	if (ret)
 		goto err_device_add;
 
@@ -387,7 +578,7 @@ void pwmchip_remove(struct pwm_chip *chip)
 
 	module_put(chip->owner);
 
-	device_del(&chip->dev);
+	cdev_device_del(&chip->cdev, &chip->dev);
 }
 EXPORT_SYMBOL_GPL(pwmchip_remove);
 
@@ -548,6 +739,36 @@ static void pwm_apply_state_debug(struct pwm_device *pwm,
 	}
 }
 
+static int __pwm_apply_state(struct pwm_chip *chip, struct pwm_device *pwm, const struct pwm_state *state)
+{
+	int err;
+
+	if (!chip->operational)
+		return -ENXIO;
+
+	if (state->period == pwm->state.period &&
+	    state->duty_cycle == pwm->state.duty_cycle &&
+	    state->polarity == pwm->state.polarity &&
+	    state->enabled == pwm->state.enabled &&
+	    state->usage_power == pwm->state.usage_power)
+		return 0;
+
+	err = chip->ops->apply(chip, pwm, state);
+	trace_pwm_apply(pwm, state, err);
+	if (err)
+		return err;
+
+	pwm->state = *state;
+
+	/*
+	 * only do this after pwm->state was applied as some
+	 * implementations of .get_state depend on this
+	 */
+	pwm_apply_state_debug(pwm, state);
+
+	return err;
+}
+
 /**
  * pwm_apply_state() - atomically apply a new state to a PWM device
  * @pwm: PWM device
@@ -575,32 +796,8 @@ int pwm_apply_state(struct pwm_device *pwm, const struct pwm_state *state)
 
 	pwmchip_lock(chip);
 
-	if (!chip->operational) {
-		err = -ENXIO;
-		goto out_unlock;
-	}
+	err = __pwm_apply_state(chip, pwm, state);
 
-	if (state->period == pwm->state.period &&
-	    state->duty_cycle == pwm->state.duty_cycle &&
-	    state->polarity == pwm->state.polarity &&
-	    state->enabled == pwm->state.enabled &&
-	    state->usage_power == pwm->state.usage_power)
-		goto out_unlock;
-
-	err = chip->ops->apply(chip, pwm, state);
-	trace_pwm_apply(pwm, state, err);
-	if (err)
-		goto out_unlock;
-
-	pwm->state = *state;
-
-	/*
-	 * only do this after pwm->state was applied as some
-	 * implementations of .get_state depend on this
-	 */
-	pwm_apply_state_debug(pwm, state);
-
-out_unlock:
 	pwmchip_unlock(chip);
 
 	return err;
diff --git a/drivers/pwm/sysfs.c b/drivers/pwm/sysfs.c
index 3a438b29c777..e5bbff32b719 100644
--- a/drivers/pwm/sysfs.c
+++ b/drivers/pwm/sysfs.c
@@ -8,6 +8,7 @@
  */
 
 #include <linux/device.h>
+#include <linux/fs.h>
 #include <linux/mutex.h>
 #include <linux/err.h>
 #include <linux/slab.h>
@@ -509,8 +510,24 @@ void pwmchip_sysfs_unexport(struct pwm_chip *chip)
 	}
 }
 
+dev_t pwm_devt;
+
 static int __init pwm_sysfs_init(void)
 {
-	return class_register(&pwm_class);
+	int ret;
+
+	ret = alloc_chrdev_region(&pwm_devt, 0, 256, "pwm");
+	if (ret) {
+		pr_warn("Failed to initialize chrdev region for PWM usage\n");
+		return ret;
+	}
+
+	ret = class_register(&pwm_class);
+	if (ret) {
+		pr_warn("Failed to register PWM class\n");
+		unregister_chrdev_region(pwm_devt, 256);
+	}
+
+	return ret;
 }
 subsys_initcall(pwm_sysfs_init);
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index 4e81e8819f8c..79aaa3959da8 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -2,6 +2,7 @@
 #ifndef __LINUX_PWM_H
 #define __LINUX_PWM_H
 
+#include <linux/cdev.h>
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/mutex.h>
@@ -294,6 +295,7 @@ struct pwm_ops {
  */
 struct pwm_chip {
 	struct device dev;
+	struct cdev cdev;
 	const struct pwm_ops *ops;
 	struct module *owner;
 	unsigned int id;
diff --git a/include/uapi/linux/pwm.h b/include/uapi/linux/pwm.h
new file mode 100644
index 000000000000..22f1bf8df54d
--- /dev/null
+++ b/include/uapi/linux/pwm.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
+
+#ifndef _UAPI_PWM_H_
+#define _UAPI_PWM_H_
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+
+struct pwmchip_state {
+	/* Make alignment arch-independant */
+	unsigned int hwpwm;
+	__u64 period;
+	__u64 duty_cycle;
+	__u64 duty_offset;
+};
+
+#define PWM_IOCTL_GET_NUM_PWMS	_IO(0x75, 0)
+#define PWM_IOCTL_REQUEST	_IOW(0x75, 1, unsigned int)
+#define PWM_IOCTL_FREE		_IOW(0x75, 2, unsigned int)
+#define PWM_IOCTL_APPLY		_IOW(0x75, 3, struct pwmchip_state)
+#define PWM_IOCTL_GET		_IOWR(0x75, 4, struct pwmchip_state)
+
+#endif /* _UAPI_PWM_H_ */
-- 
2.42.0


      parent reply	other threads:[~2023-11-21 13:52 UTC|newest]

Thread overview: 163+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-21 13:49 [PATCH v3 000/108] pwm: Fix lifetime issues for pwm_chips Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 001/108] pwm: cros-ec: Change prototype of helper to prepare further changes Uwe Kleine-König
2023-11-22  8:52   ` Tzung-Bi Shih
2023-11-23  9:24     ` Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 002/108] pwm: Provide a macro to get the parent device of a given chip Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 003/108] pwm: ab8500: Make use of pwmchip_parent() macro Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 004/108] pwm: atmel: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 005/108] pwm: atmel-tcb: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 006/108] pwm: bcm-kona: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 007/108] pwm: crc: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 008/108] pwm: cros-ec: " Uwe Kleine-König
2023-11-22  8:52   ` Tzung-Bi Shih
2023-11-21 13:49 ` [PATCH v3 009/108] pwm: dwc: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 010/108] pwm: ep93xx: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 011/108] pwm: fsl-ftm: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 012/108] pwm: img: Make use of parent device pointer in driver data Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 013/108] pwm: imx27: Make use of pwmchip_parent() macro Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 014/108] pwm: jz4740: " Uwe Kleine-König
2023-11-21 14:13   ` Paul Cercueil
2023-11-21 15:51     ` Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 015/108] pwm: lpc18xx-sct: Make use of parent device pointer in driver data Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 016/108] pwm: lpss: Make use of pwmchip_parent() macro Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 017/108] pwm: mediatek: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 018/108] pwm: meson: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 019/108] pwm: mtk-disp: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 020/108] pwm: omap: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 021/108] pwm: pca9685: Store parent device in driver data Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 022/108] pwm: raspberrypi-poe: Make use of pwmchip_parent() macro Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 023/108] pwm: rcar: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 024/108] pwm: rz-mtu3: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 025/108] pwm: samsung: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 026/108] pwm: sifive: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 027/108] pwm: stm32-lp: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 028/108] pwm: stm32: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 029/108] pwm: stmpe: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 030/108] pwm: sun4i: " Uwe Kleine-König
2023-11-25 18:48   ` Jernej Škrabec
2023-11-21 13:49 ` [PATCH v3 031/108] pwm: tiecap: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 032/108] pwm: tiehrpwm: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 033/108] pwm: twl-led: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 034/108] pwm: twl: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 035/108] pwm: vt8500: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 036/108] staging: greybus: pwm: " Uwe Kleine-König
2023-11-23 12:55   ` Greg Kroah-Hartman
2023-11-21 13:49 ` [PATCH v3 037/108] pwm: Provide devm_pwmchip_alloc() function Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 038/108] pwm: ab8500: Make use of " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 039/108] pwm: apple: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 040/108] pwm: atmel-hlcdc: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 041/108] pwm: atmel: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 042/108] pwm: atmel-tcb: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 043/108] pwm: bcm2835: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 044/108] pwm: bcm-iproc: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 045/108] pwm: bcm-kona: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 046/108] pwm: berlin: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 047/108] pwm: brcmstb: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 048/108] pwm: clk: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 049/108] pwm: clps711x: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 050/108] pwm: crc: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 051/108] pwm: cros-ec: " Uwe Kleine-König
2023-11-22  8:52   ` Tzung-Bi Shih
2023-11-22 23:56     ` Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 052/108] pwm: dwc: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 053/108] pwm: ep93xx: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 054/108] pwm: fsl-ftm: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 055/108] pwm: hibvt: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 056/108] pwm: img: " Uwe Kleine-König
2023-11-21 13:49 ` [PATCH v3 057/108] pwm: imx1: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 058/108] pwm: imx27: " Uwe Kleine-König
2023-12-05 11:49   ` Philipp Zabel
2023-12-05 12:14     ` Uwe Kleine-König
2023-12-05 12:50       ` Philipp Zabel
2023-11-21 13:50 ` [PATCH v3 059/108] pwm: imx-tpm: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 060/108] pwm: intel-lgm: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 061/108] pwm: iqs620a: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 062/108] pwm: jz4740: " Uwe Kleine-König
2023-11-21 14:16   ` Paul Cercueil
2023-11-21 13:50 ` [PATCH v3 063/108] pwm: keembay: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 064/108] pwm: lp3943: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 065/108] pwm: lpc18xx-sct: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 066/108] pwm: lpc32xx: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 067/108] pwm: lpss-*: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 068/108] pwm: mediatek: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 069/108] pwm: meson: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 070/108] pwm: microchip-core: " Uwe Kleine-König
2023-11-22 11:14   ` Conor Dooley
2023-11-22 22:48     ` Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 071/108] pwm: mtk-disp: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 072/108] pwm: mxs: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 073/108] pwm: ntxec: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 074/108] pwm: omap-dmtimer: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 075/108] pwm: pca9685: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 076/108] pwm: pxa: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 077/108] pwm: raspberrypi-poe: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 078/108] pwm: rcar: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 079/108] pwm: renesas-tpu: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 080/108] pwm: rockchip: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 081/108] pwm: rz-mtu3: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 082/108] pwm: samsung: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 083/108] pwm: sifive: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 084/108] pwm: sl28cpld: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 085/108] pwm: spear: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 086/108] pwm: sprd: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 087/108] pwm: sti: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 088/108] pwm: stm32-lp: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 089/108] pwm: stm32: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 090/108] pwm: stmpe: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 091/108] pwm: sun4i: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 092/108] pwm: sunplus: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 093/108] pwm: tegra: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 094/108] pwm: tiecap: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 095/108] pwm: twl-led: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 096/108] pwm: twl: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 097/108] pwm: visconti: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 098/108] pwm: vt8500: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 099/108] pwm: xilinx: " Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 100/108] gpio: mvebu: " Uwe Kleine-König
2023-11-21 14:02   ` Bartosz Golaszewski
2023-11-21 16:11     ` Uwe Kleine-König
2023-11-22  9:05       ` Uwe Kleine-König
2023-11-22 10:36         ` Bartosz Golaszewski
2023-11-22 23:39           ` Uwe Kleine-König
2023-11-24 12:14           ` Thierry Reding
2023-11-24 21:16             ` Bartosz Golaszewski
2023-11-24 21:59               ` Uwe Kleine-König
2023-11-27 10:58               ` Uwe Kleine-König
2023-11-27 20:22                 ` Bartosz Golaszewski
2023-11-28  9:07                   ` Uwe Kleine-König
2023-12-01 10:14                     ` Bartosz Golaszewski
2023-12-02  0:43                       ` Uwe Kleine-König
2023-12-04 20:27                         ` Bartosz Golaszewski
2023-12-04 21:28                           ` Bartosz Golaszewski
2023-12-05  9:31                             ` Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 101/108] drm/bridge: ti-sn65dsi86: " Uwe Kleine-König
2023-11-21 15:15   ` Doug Anderson
2023-11-21 16:05     ` Uwe Kleine-König
2023-11-21 16:14       ` Doug Anderson
2023-11-23  9:17         ` Uwe Kleine-König
2023-11-27  9:32           ` Uwe Kleine-König
2023-11-23  9:46   ` Laurent Pinchart
2023-11-23 10:10     ` Uwe Kleine-König
2023-12-06 12:06       ` Laurent Pinchart
2023-12-06 14:23         ` Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 102/108] leds: qcom-lpg: " Uwe Kleine-König
2023-11-21 15:16   ` Lee Jones
2023-11-21 15:58     ` Uwe Kleine-König
2023-11-22 11:56   ` Lee Jones
2023-11-22 17:15     ` Thierry Reding
2023-11-23 10:44       ` Uwe Kleine-König
2023-11-24 12:27         ` Thierry Reding
2023-11-24 18:22           ` Uwe Kleine-König
2023-11-24 21:21             ` Bartosz Golaszewski
2023-11-22 17:54     ` Uwe Kleine-König
2023-11-23 10:21       ` Lee Jones
2023-11-23 10:54         ` Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 104/108] pwm: Ensure that pwm_chips are allocated using pwmchip_alloc() Uwe Kleine-König
2023-11-22 17:19   ` Thierry Reding
2023-11-22 23:52     ` Uwe Kleine-König
2023-11-24 12:28       ` Thierry Reding
2023-11-21 13:50 ` [PATCH v3 105/108] pwm: Ensure a struct pwm has the same lifetime as its pwm_chip Uwe Kleine-König
2023-11-21 15:53   ` Gustavo A. R. Silva
2023-11-21 13:50 ` [PATCH v3 106/108] pwm: Ensure the memory backing a PWM chip isn't freed while used Uwe Kleine-König
2023-11-21 13:50 ` [PATCH v3 107/108] pwm: Add more locking Uwe Kleine-König
2023-11-21 13:50 ` Uwe Kleine-König [this message]

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