linux/drivers/pwm/pwm-jz4740.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  Copyright (C) 2010, Lars-Peter Clausen <[email protected]>
 *  JZ4740 platform PWM support
 *
 * Limitations:
 * - The .apply callback doesn't complete the currently running period before
 *   reconfiguring the hardware.
 */

#include <linux/clk.h>
#include <linux/err.h>
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/mfd/ingenic-tcu.h>
#include <linux/mfd/syscon.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pwm.h>
#include <linux/regmap.h>

struct soc_info { … };

struct jz4740_pwm_chip { … };

static inline struct jz4740_pwm_chip *to_jz4740(struct pwm_chip *chip)
{ … }

static bool jz4740_pwm_can_use_chn(struct pwm_chip *chip, unsigned int channel)
{ … }

static int jz4740_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
{ … }

static void jz4740_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
{ … }

static int jz4740_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
{ … }

static void jz4740_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
{ … }

static int jz4740_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
			    const struct pwm_state *state)
{ … }

static const struct pwm_ops jz4740_pwm_ops = …;

static int jz4740_pwm_probe(struct platform_device *pdev)
{ … }

static const struct soc_info jz4740_soc_info = …;

static const struct soc_info jz4725b_soc_info = …;

static const struct soc_info x1000_soc_info = …;

static const struct of_device_id jz4740_pwm_dt_ids[] = …;
MODULE_DEVICE_TABLE(of, jz4740_pwm_dt_ids);

static struct platform_driver jz4740_pwm_driver = …;
module_platform_driver(…) …;

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_ALIAS(…) …;
MODULE_LICENSE(…) …;