// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2021-2023 Samuel Holland <[email protected]> * * Partly based on drivers/leds/leds-turris-omnia.c, which is: * Copyright (c) 2020 by Marek Behún <[email protected]> */ #include <linux/bitfield.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/dmaengine.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/led-class-multicolor.h> #include <linux/leds.h> #include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/pm.h> #include <linux/property.h> #include <linux/reset.h> #include <linux/spinlock.h> #define LEDC_CTRL_REG … #define LEDC_CTRL_REG_DATA_LENGTH … #define LEDC_CTRL_REG_RGB_MODE … #define LEDC_CTRL_REG_LEDC_EN … #define LEDC_T01_TIMING_CTRL_REG … #define LEDC_T01_TIMING_CTRL_REG_T1H … #define LEDC_T01_TIMING_CTRL_REG_T1L … #define LEDC_T01_TIMING_CTRL_REG_T0H … #define LEDC_T01_TIMING_CTRL_REG_T0L … #define LEDC_RESET_TIMING_CTRL_REG … #define LEDC_RESET_TIMING_CTRL_REG_TR … #define LEDC_RESET_TIMING_CTRL_REG_LED_NUM … #define LEDC_DATA_REG … #define LEDC_DMA_CTRL_REG … #define LEDC_DMA_CTRL_REG_DMA_EN … #define LEDC_DMA_CTRL_REG_FIFO_TRIG_LEVEL … #define LEDC_INT_CTRL_REG … #define LEDC_INT_CTRL_REG_GLOBAL_INT_EN … #define LEDC_INT_CTRL_REG_FIFO_CPUREQ_INT_EN … #define LEDC_INT_CTRL_REG_TRANS_FINISH_INT_EN … #define LEDC_INT_STS_REG … #define LEDC_INT_STS_REG_FIFO_WLW … #define LEDC_INT_STS_REG_FIFO_CPUREQ_INT … #define LEDC_INT_STS_REG_TRANS_FINISH_INT … #define LEDC_FIFO_DEPTH … #define LEDC_MAX_LEDS … #define LEDC_CHANNELS_PER_LED … #define LEDS_TO_BYTES(n) … struct sun50i_a100_ledc_led { … }; #define to_ledc_led(mc) … struct sun50i_a100_ledc_timing { … }; struct sun50i_a100_ledc { … }; static int sun50i_a100_ledc_dma_xfer(struct sun50i_a100_ledc *priv, unsigned int length) { … } static void sun50i_a100_ledc_pio_xfer(struct sun50i_a100_ledc *priv, unsigned int fifo_used) { … } static void sun50i_a100_ledc_start_xfer(struct sun50i_a100_ledc *priv, unsigned int length) { … } static irqreturn_t sun50i_a100_ledc_irq(int irq, void *data) { … } static void sun50i_a100_ledc_brightness_set(struct led_classdev *cdev, enum led_brightness brightness) { … } static const char *const sun50i_a100_ledc_formats[] = …; static int sun50i_a100_ledc_parse_format(struct device *dev, struct sun50i_a100_ledc *priv) { … } static void sun50i_a100_ledc_set_format(struct sun50i_a100_ledc *priv) { … } static const struct sun50i_a100_ledc_timing sun50i_a100_ledc_default_timing = …; static int sun50i_a100_ledc_parse_timing(struct device *dev, struct sun50i_a100_ledc *priv) { … } static void sun50i_a100_ledc_set_timing(struct sun50i_a100_ledc *priv) { … } static int sun50i_a100_ledc_resume(struct device *dev) { … } static int sun50i_a100_ledc_suspend(struct device *dev) { … } static void sun50i_a100_ledc_dma_cleanup(void *data) { … } static int sun50i_a100_ledc_probe(struct platform_device *pdev) { … } static void sun50i_a100_ledc_remove(struct platform_device *pdev) { … } static const struct of_device_id sun50i_a100_ledc_of_match[] = …; MODULE_DEVICE_TABLE(of, sun50i_a100_ledc_of_match); static DEFINE_SIMPLE_DEV_PM_OPS(sun50i_a100_ledc_pm, sun50i_a100_ledc_suspend, sun50i_a100_ledc_resume); static struct platform_driver sun50i_a100_ledc_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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