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-rw-r--r--include/dt-bindings/leds/common.h5
-rw-r--r--include/linux/led-class-multicolor.h121
-rw-r--r--include/linux/leds.h10
-rw-r--r--include/linux/platform_data/leds-lp55xx.h13
4 files changed, 146 insertions, 3 deletions
diff --git a/include/dt-bindings/leds/common.h b/include/dt-bindings/leds/common.h
index 0ce7dfc00dcb..52b619d44ba2 100644
--- a/include/dt-bindings/leds/common.h
+++ b/include/dt-bindings/leds/common.h
@@ -30,7 +30,10 @@
#define LED_COLOR_ID_VIOLET 5
#define LED_COLOR_ID_YELLOW 6
#define LED_COLOR_ID_IR 7
-#define LED_COLOR_ID_MAX 8
+#define LED_COLOR_ID_MULTI 8 /* For multicolor LEDs */
+#define LED_COLOR_ID_RGB 9 /* For multicolor LEDs that can do arbitrary color,
+ so this would include RGBW and similar */
+#define LED_COLOR_ID_MAX 10
/* Standard LED functions */
/* Keyboard LEDs, usually it would be input4::capslock etc. */
diff --git a/include/linux/led-class-multicolor.h b/include/linux/led-class-multicolor.h
new file mode 100644
index 000000000000..5116f9a866cc
--- /dev/null
+++ b/include/linux/led-class-multicolor.h
@@ -0,0 +1,121 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* LED Multicolor class interface
+ * Copyright (C) 2019-20 Texas Instruments Incorporated - http://www.ti.com/
+ */
+
+#ifndef _LINUX_MULTICOLOR_LEDS_H_INCLUDED
+#define _LINUX_MULTICOLOR_LEDS_H_INCLUDED
+
+#include <linux/leds.h>
+#include <dt-bindings/leds/common.h>
+
+struct mc_subled {
+ unsigned int color_index;
+ unsigned int brightness;
+ unsigned int intensity;
+ unsigned int channel;
+};
+
+struct led_classdev_mc {
+ /* led class device */
+ struct led_classdev led_cdev;
+ unsigned int num_colors;
+
+ struct mc_subled *subled_info;
+};
+
+static inline struct led_classdev_mc *lcdev_to_mccdev(
+ struct led_classdev *led_cdev)
+{
+ return container_of(led_cdev, struct led_classdev_mc, led_cdev);
+}
+
+#if IS_ENABLED(CONFIG_LEDS_CLASS_MULTICOLOR)
+/**
+ * led_classdev_multicolor_register_ext - register a new object of led_classdev
+ * class with support for multicolor LEDs
+ * @parent: the multicolor LED to register
+ * @mcled_cdev: the led_classdev_mc structure for this device
+ * @init_data: the LED class multicolor device initialization data
+ *
+ * Returns: 0 on success or negative error value on failure
+ */
+int led_classdev_multicolor_register_ext(struct device *parent,
+ struct led_classdev_mc *mcled_cdev,
+ struct led_init_data *init_data);
+
+static inline int led_classdev_multicolor_register(struct device *parent,
+ struct led_classdev_mc *mcled_cdev)
+{
+ return led_classdev_multicolor_register_ext(parent, mcled_cdev, NULL);
+}
+
+/**
+ * led_classdev_multicolor_unregister - unregisters an object of led_classdev
+ * class with support for multicolor LEDs
+ * @mcled_cdev: the multicolor LED to unregister
+ *
+ * Unregister a previously registered via led_classdev_multicolor_register
+ * object
+ */
+void led_classdev_multicolor_unregister(struct led_classdev_mc *mcled_cdev);
+
+/* Calculate brightness for the monochrome LED cluster */
+int led_mc_calc_color_components(struct led_classdev_mc *mcled_cdev,
+ enum led_brightness brightness);
+
+int devm_led_classdev_multicolor_register_ext(struct device *parent,
+ struct led_classdev_mc *mcled_cdev,
+ struct led_init_data *init_data);
+
+static inline int devm_led_classdev_multicolor_register(struct device *parent,
+ struct led_classdev_mc *mcled_cdev)
+{
+ return devm_led_classdev_multicolor_register_ext(parent, mcled_cdev,
+ NULL);
+}
+
+void devm_led_classdev_multicolor_unregister(struct device *parent,
+ struct led_classdev_mc *mcled_cdev);
+#else
+
+static inline int led_classdev_multicolor_register_ext(struct device *parent,
+ struct led_classdev_mc *mcled_cdev,
+ struct led_init_data *init_data)
+{
+ return -EINVAL;
+}
+
+static inline int led_classdev_multicolor_register(struct device *parent,
+ struct led_classdev_mc *mcled_cdev)
+{
+ return led_classdev_multicolor_register_ext(parent, mcled_cdev, NULL);
+}
+
+static inline void led_classdev_multicolor_unregister(struct led_classdev_mc *mcled_cdev) {};
+static inline int led_mc_calc_color_components(struct led_classdev_mc *mcled_cdev,
+ enum led_brightness brightness)
+{
+ return -EINVAL;
+}
+
+static inline int devm_led_classdev_multicolor_register_ext(struct device *parent,
+ struct led_classdev_mc *mcled_cdev,
+ struct led_init_data *init_data)
+{
+ return -EINVAL;
+}
+
+static inline int devm_led_classdev_multicolor_register(struct device *parent,
+ struct led_classdev_mc *mcled_cdev)
+{
+ return devm_led_classdev_multicolor_register_ext(parent, mcled_cdev,
+ NULL);
+}
+
+static inline void devm_led_classdev_multicolor_unregister(struct device *parent,
+ struct led_classdev_mc *mcled_cdev)
+{};
+
+#endif /* IS_ENABLED(CONFIG_LEDS_CLASS_MULTICOLOR) */
+#endif /* _LINUX_MULTICOLOR_LEDS_H_INCLUDED */
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 2451962d1ec5..6a8d6409c993 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -57,6 +57,10 @@ struct led_init_data {
bool devname_mandatory;
};
+struct led_hw_trigger_type {
+ int dummy;
+};
+
struct led_classdev {
const char *name;
enum led_brightness brightness;
@@ -141,6 +145,9 @@ struct led_classdev {
void *trigger_data;
/* true if activated - deactivate routine uses it to do cleanup */
bool activated;
+
+ /* LEDs that have private triggers have this set */
+ struct led_hw_trigger_type *trigger_type;
#endif
#ifdef CONFIG_LEDS_BRIGHTNESS_HW_CHANGED
@@ -345,6 +352,9 @@ struct led_trigger {
int (*activate)(struct led_classdev *led_cdev);
void (*deactivate)(struct led_classdev *led_cdev);
+ /* LED-private triggers have this set */
+ struct led_hw_trigger_type *trigger_type;
+
/* LEDs under control by this trigger (for simple triggers) */
rwlock_t leddev_list_lock;
struct list_head led_cdevs;
diff --git a/include/linux/platform_data/leds-lp55xx.h b/include/linux/platform_data/leds-lp55xx.h
index 96a787100fda..3441064713a3 100644
--- a/include/linux/platform_data/leds-lp55xx.h
+++ b/include/linux/platform_data/leds-lp55xx.h
@@ -12,17 +12,26 @@
#ifndef _LEDS_LP55XX_H
#define _LEDS_LP55XX_H
+#include <linux/gpio/consumer.h>
+#include <linux/led-class-multicolor.h>
+
/* Clock configuration */
#define LP55XX_CLOCK_AUTO 0
#define LP55XX_CLOCK_INT 1
#define LP55XX_CLOCK_EXT 2
+#define LP55XX_MAX_GROUPED_CHAN 4
+
struct lp55xx_led_config {
const char *name;
const char *default_trigger;
u8 chan_nr;
u8 led_current; /* mA x10, 0 if led is not connected */
u8 max_current;
+ int num_colors;
+ unsigned int max_channel;
+ int color_id[LED_COLOR_ID_MAX];
+ int output_num[LED_COLOR_ID_MAX];
};
struct lp55xx_predef_pattern {
@@ -49,7 +58,7 @@ enum lp8501_pwr_sel {
* @clock_mode : Input clock mode. LP55XX_CLOCK_AUTO or _INT or _EXT
* @setup_resources : Platform specific function before enabling the chip
* @release_resources : Platform specific function after disabling the chip
- * @enable : EN pin control by platform side
+ * @enable_gpiod : enable GPIO descriptor
* @patterns : Predefined pattern data for RGB channels
* @num_patterns : Number of patterns
* @update_config : Value of CONFIG register
@@ -65,7 +74,7 @@ struct lp55xx_platform_data {
u8 clock_mode;
/* optional enable GPIO */
- int enable_gpio;
+ struct gpio_desc *enable_gpiod;
/* Predefined pattern data */
struct lp55xx_predef_pattern *patterns;
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-05 06:35:04 +0000