// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for BCM6328 memory-mapped LEDs, based on leds-syscon.c * * Copyright 2015 Álvaro Fernández Rojas <[email protected]> * Copyright 2015 Jonas Gorski <[email protected]> */ #include <linux/io.h> #include <linux/leds.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/spinlock.h> #define BCM6328_REG_INIT … #define BCM6328_REG_MODE_HI … #define BCM6328_REG_MODE_LO … #define BCM6328_REG_HWDIS … #define BCM6328_REG_STROBE … #define BCM6328_REG_LNKACTSEL_HI … #define BCM6328_REG_LNKACTSEL_LO … #define BCM6328_REG_RBACK … #define BCM6328_REG_SERMUX … #define BCM6328_LED_MAX_COUNT … #define BCM6328_LED_DEF_DELAY … #define BCM6328_LED_BLINK_DELAYS … #define BCM6328_LED_BLINK_MS … #define BCM6328_LED_BLINK_MASK … #define BCM6328_LED_BLINK1_SHIFT … #define BCM6328_LED_BLINK1_MASK … #define BCM6328_LED_BLINK2_SHIFT … #define BCM6328_LED_BLINK2_MASK … #define BCM6328_SERIAL_LED_EN … #define BCM6328_SERIAL_LED_MUX … #define BCM6328_SERIAL_LED_CLK_NPOL … #define BCM6328_SERIAL_LED_DATA_PPOL … #define BCM6328_SERIAL_LED_SHIFT_DIR … #define BCM6328_LED_SHIFT_TEST … #define BCM6328_LED_TEST … #define BCM6328_INIT_MASK … #define BCM6328_LED_MODE_MASK … #define BCM6328_LED_MODE_ON … #define BCM6328_LED_MODE_BLINK1 … #define BCM6328_LED_MODE_BLINK2 … #define BCM6328_LED_MODE_OFF … #define BCM6328_LED_SHIFT(X) … /** * struct bcm6328_led - state container for bcm6328 based LEDs * @cdev: LED class device for this LED * @mem: memory resource * @lock: memory lock * @pin: LED pin number * @blink_leds: blinking LEDs * @blink_delay: blinking delay * @active_low: LED is active low */ struct bcm6328_led { … }; static void bcm6328_led_write(void __iomem *reg, unsigned long data) { … } static unsigned long bcm6328_led_read(void __iomem *reg) { … } /* * LEDMode 64 bits / 24 LEDs * bits [31:0] -> LEDs 8-23 * bits [47:32] -> LEDs 0-7 * bits [63:48] -> unused */ static unsigned long bcm6328_pin2shift(unsigned long pin) { … } static void bcm6328_led_mode(struct bcm6328_led *led, unsigned long value) { … } static void bcm6328_led_set(struct led_classdev *led_cdev, enum led_brightness value) { … } static unsigned long bcm6328_blink_delay(unsigned long delay) { … } static int bcm6328_blink_set(struct led_classdev *led_cdev, unsigned long *delay_on, unsigned long *delay_off) { … } static int bcm6328_hwled(struct device *dev, struct device_node *nc, u32 reg, void __iomem *mem, spinlock_t *lock) { … } static int bcm6328_led(struct device *dev, struct device_node *nc, u32 reg, void __iomem *mem, spinlock_t *lock, unsigned long *blink_leds, unsigned long *blink_delay) { … } static int bcm6328_leds_probe(struct platform_device *pdev) { … } static const struct of_device_id bcm6328_leds_of_match[] = …; MODULE_DEVICE_TABLE(of, bcm6328_leds_of_match); static struct platform_driver bcm6328_leds_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; MODULE_ALIAS(…) …;
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