1 // SPDX-License-Identifier: GPL-2.0
4 #include <linux/leds.h>
52 	bool active;  member
56 	struct sc27xx_led leds[SC27XX_LEDS_MAX];  member
82 static u32 sc27xx_led_get_offset(struct sc27xx_led *leds)  in sc27xx_led_get_offset()  argument
84 	return leds->priv->base + SC27XX_LEDS_OFFSET * leds->line;  in sc27xx_led_get_offset()
87 static int sc27xx_led_enable(struct sc27xx_led *leds, enum led_brightness value)  in sc27xx_led_enable()  argument
89 	u32 base = sc27xx_led_get_offset(leds);  in sc27xx_led_enable()
90 	u32 ctrl_base = leds->priv->base + SC27XX_LEDS_CTRL;  in sc27xx_led_enable()
91 	u8 ctrl_shift = SC27XX_CTRL_SHIFT * leds->line;  in sc27xx_led_enable()
92 	struct regmap *regmap = leds->priv->regmap;  in sc27xx_led_enable()
107 static int sc27xx_led_disable(struct sc27xx_led *leds)  in sc27xx_led_disable()  argument
109 	struct regmap *regmap = leds->priv->regmap;  in sc27xx_led_disable()
110 	u32 ctrl_base = leds->priv->base + SC27XX_LEDS_CTRL;  in sc27xx_led_disable()
111 	u8 ctrl_shift = SC27XX_CTRL_SHIFT * leds->line;  in sc27xx_led_disable()
119 	struct sc27xx_led *leds = to_sc27xx_led(ldev);  in sc27xx_led_set()  local
122 	mutex_lock(&leds->priv->lock);  in sc27xx_led_set()
125 		err = sc27xx_led_disable(leds);  in sc27xx_led_set()
127 		err = sc27xx_led_enable(leds, value);  in sc27xx_led_set()
129 	mutex_unlock(&leds->priv->lock);  in sc27xx_led_set()
140 	offset = v - SC27XX_DELTA_T_MIN;  in sc27xx_led_clamp_align_delta_t()
148 	struct sc27xx_led *leds = to_sc27xx_led(ldev);  in sc27xx_led_pattern_clear()  local
149 	struct regmap *regmap = leds->priv->regmap;  in sc27xx_led_pattern_clear()
150 	u32 base = sc27xx_led_get_offset(leds);  in sc27xx_led_pattern_clear()
151 	u32 ctrl_base = leds->priv->base + SC27XX_LEDS_CTRL;  in sc27xx_led_pattern_clear()
152 	u8 ctrl_shift = SC27XX_CTRL_SHIFT * leds->line;  in sc27xx_led_pattern_clear()
155 	mutex_lock(&leds->priv->lock);  in sc27xx_led_pattern_clear()
157 	/* Reset the rise, high, fall and low time to zero. */  in sc27xx_led_pattern_clear()
164 	ldev->brightness = LED_OFF;  in sc27xx_led_pattern_clear()
166 	mutex_unlock(&leds->priv->lock);  in sc27xx_led_pattern_clear()
175 	struct sc27xx_led *leds = to_sc27xx_led(ldev);  in sc27xx_led_pattern_set()  local
176 	u32 base = sc27xx_led_get_offset(leds);  in sc27xx_led_pattern_set()
177 	u32 ctrl_base = leds->priv->base + SC27XX_LEDS_CTRL;  in sc27xx_led_pattern_set()
178 	u8 ctrl_shift = SC27XX_CTRL_SHIFT * leds->line;  in sc27xx_led_pattern_set()
179 	struct regmap *regmap = leds->priv->regmap;  in sc27xx_led_pattern_set()
184 	 * time and low time to enable the breathing mode.  in sc27xx_led_pattern_set()
187 		return -EINVAL;  in sc27xx_led_pattern_set()
189 	mutex_lock(&leds->priv->lock);  in sc27xx_led_pattern_set()
233 		ldev->brightness = pattern[1].brightness;  in sc27xx_led_pattern_set()
236 	mutex_unlock(&leds->priv->lock);  in sc27xx_led_pattern_set()
245 	err = sc27xx_led_init(priv->regmap);  in sc27xx_led_register()
250 		struct sc27xx_led *led = &priv->leds[i];  in sc27xx_led_register()
253 		if (!led->active)  in sc27xx_led_register()
256 		led->line = i;  in sc27xx_led_register()
257 		led->priv = priv;  in sc27xx_led_register()
258 		led->ldev.brightness_set_blocking = sc27xx_led_set;  in sc27xx_led_register()
259 		led->ldev.pattern_set = sc27xx_led_pattern_set;  in sc27xx_led_register()
260 		led->ldev.pattern_clear = sc27xx_led_pattern_clear;  in sc27xx_led_register()
261 		led->ldev.default_trigger = "pattern";  in sc27xx_led_register()
263 		init_data.fwnode = led->fwnode;  in sc27xx_led_register()
267 		err = devm_led_classdev_register_ext(dev, &led->ldev,  in sc27xx_led_register()
278 	struct device *dev = &pdev->dev;  in sc27xx_led_probe()
286 		return -EINVAL;  in sc27xx_led_probe()
296 		return -ENOMEM;  in sc27xx_led_probe()
299 	mutex_init(&priv->lock);  in sc27xx_led_probe()
300 	priv->base = base;  in sc27xx_led_probe()
301 	priv->regmap = dev_get_regmap(dev->parent, NULL);  in sc27xx_led_probe()
302 	if (!priv->regmap) {  in sc27xx_led_probe()
303 		err = -ENODEV;  in sc27xx_led_probe()
312 			mutex_destroy(&priv->lock);  in sc27xx_led_probe()
316 		if (reg >= SC27XX_LEDS_MAX || priv->leds[reg].active) {  in sc27xx_led_probe()
318 			mutex_destroy(&priv->lock);  in sc27xx_led_probe()
319 			return -EINVAL;  in sc27xx_led_probe()
322 		priv->leds[reg].fwnode = of_fwnode_handle(child);  in sc27xx_led_probe()
323 		priv->leds[reg].active = true;  in sc27xx_led_probe()
328 		mutex_destroy(&priv->lock);  in sc27xx_led_probe()
337 	mutex_destroy(&priv->lock);  in sc27xx_led_remove()
342 	{ .compatible = "sprd,sc2731-bltc", },
349 		.name = "sprd-bltc",