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authorLinus Torvalds <torvalds@linux-foundation.org>2023-07-03 11:26:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2023-07-03 11:26:05 -0700
commitc156d4af4354091c38a1cbef62c0b1574e8c4394 (patch)
treefe2d517469814ab302884f4a4e8dd9b2f9822e33 /include/linux
parentb8ec70ab66b09ee9e081a38b8625b5accb388176 (diff)
parent877e91191ccf0782ae18c5dfa7522fb1e5bfba8c (diff)
Merge tag 'leds-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds
Pull LED updates from Lee Jones: "New Drivers: - Add support for Intel Cherry Trail Whiskey Cove PMIC LEDs - Add support for Awinic AW20036/AW20054/AW20072 LEDs New Device Support: - Add support for PMI632 LPG to QCom LPG - Add support for PMI8998 to QCom Flash - Add support for MT6331, WLEDs and MT6332 to Mediatek MT6323 PMIC New Functionality: - Implement the LP55xx Charge Pump - Add support for suspend / resume to Intel Cherry Trail Whiskey Cove PMIC - Add support for breathing mode to Intel Cherry Trail Whiskey Cove PMIC - Enable per-pin resolution Pinctrl in LEDs GPIO Fix-ups: - Allow thread to sleep by switching from spinlock to mutex - Add lots of Device Tree bindings / support - Adapt relationships / dependencies driven by Kconfig - Switch I2C drivers from .probe_new() to .probe() - Remove superfluous / duplicate code - Replace strlcpy() with strscpy() for efficiency and overflow prevention - Staticify various functions - Trivial: Fixing coding style - Simplify / reduce code Bug Fixes: - Prevent NETDEV_LED_MODE_LINKUP from being cleared on rename - Repair race between led_set_brightness(LED_{OFF,FULL}) - Fix Oops relating to sleeping in critical sections - Clear LED_INIT_DEFAULT_TRIGGER flag when clearing the current trigger - Do not leak resources in error handling paths - Fix unsigned comparison which can never be negative - Provide missing NULL terminating entries in tables - Fix misnaming issues" * tag 'leds-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (53 commits) leds: leds-mt6323: Adjust return/parameter types in wled get/set callbacks leds: sgm3140: Add richtek,rt5033-led compatible dt-bindings: leds: sgm3140: Document richtek,rt5033 compatible dt-bindings: backlight: kinetic,ktz8866: Add missing type for "current-num-sinks" dt-bindings: leds: Drop unneeded quotes leds: Fix config reference for AW200xx driver leds: leds-mt6323: Add support for WLEDs and MT6332 leds: leds-mt6323: Add support for MT6331 leds leds: leds-mt6323: Open code and drop MT6323_CAL_HW_DUTY macro leds: leds-mt6323: Drop MT6323_ prefix from macros and defines leds: leds-mt6323: Specify registers and specs in platform data dt-bindings: leds: leds-mt6323: Document mt6332 compatible dt-bindings: leds: leds-mt6323: Document mt6331 compatible leds: simatic-ipc-leds-gpio: Introduce more Kconfig switches leds: simatic-ipc-leds-gpio: Split up into multiple drivers leds: simatic-ipc-leds-gpio: Move two extra gpio pins into another table leds: simatic-ipc-leds-gpio: Add terminating entries to gpio tables leds: flash: leds-qcom-flash: Fix an unsigned comparison which can never be negative leds: cht-wcove: Remove unneeded semicolon leds: cht-wcove: Fix an unsigned comparison which can never be negative ...
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/leds.h43
-rw-r--r--include/linux/platform_data/leds-lp55xx.h3
2 files changed, 38 insertions, 8 deletions
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 3a65ff72bb04..7d428100b42b 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -124,6 +124,10 @@ struct led_classdev {
#define LED_BLINK_INVERT 3
#define LED_BLINK_BRIGHTNESS_CHANGE 4
#define LED_BLINK_DISABLE 5
+ /* Brightness off also disables hw-blinking so it is a separate action */
+#define LED_SET_BRIGHTNESS_OFF 6
+#define LED_SET_BRIGHTNESS 7
+#define LED_SET_BLINK 8
/* Set LED brightness level
* Must not sleep. Use brightness_set_blocking for drivers
@@ -147,6 +151,10 @@ struct led_classdev {
* match the values specified exactly.
* Deactivate blinking again when the brightness is set to LED_OFF
* via the brightness_set() callback.
+ * For led_blink_set_nosleep() the LED core assumes that blink_set
+ * implementations, of drivers which do not use brightness_set_blocking,
+ * will not sleep. Therefor if brightness_set_blocking is not set
+ * this function must not sleep!
*/
int (*blink_set)(struct led_classdev *led_cdev,
unsigned long *delay_on,
@@ -170,6 +178,8 @@ struct led_classdev {
struct work_struct set_brightness_work;
int delayed_set_value;
+ unsigned long delayed_delay_on;
+ unsigned long delayed_delay_off;
#ifdef CONFIG_LEDS_TRIGGERS
/* Protects the trigger data below */
@@ -315,12 +325,27 @@ struct led_classdev *__must_check devm_of_led_get(struct device *dev,
* software blinking if there is no hardware blinking or if
* the LED refuses the passed values.
*
+ * This function may sleep!
+ *
* Note that if software blinking is active, simply calling
* led_cdev->brightness_set() will not stop the blinking,
* use led_set_brightness() instead.
*/
void led_blink_set(struct led_classdev *led_cdev, unsigned long *delay_on,
unsigned long *delay_off);
+
+/**
+ * led_blink_set_nosleep - set blinking, guaranteed to not sleep
+ * @led_cdev: the LED to start blinking
+ * @delay_on: the time it should be on (in ms)
+ * @delay_off: the time it should ble off (in ms)
+ *
+ * This function makes the LED blink and is guaranteed to not sleep. Otherwise
+ * this is the same as led_blink_set(), see led_blink_set() for details.
+ */
+void led_blink_set_nosleep(struct led_classdev *led_cdev, unsigned long delay_on,
+ unsigned long delay_off);
+
/**
* led_blink_set_oneshot - do a oneshot software blink
* @led_cdev: the LED to start blinking
@@ -334,6 +359,8 @@ void led_blink_set(struct led_classdev *led_cdev, unsigned long *delay_on,
*
* If invert is set, led blinks for delay_off first, then for
* delay_on and leave the led on after the on-off cycle.
+ *
+ * This function is guaranteed not to sleep.
*/
void led_blink_set_oneshot(struct led_classdev *led_cdev,
unsigned long *delay_on, unsigned long *delay_off,
@@ -476,11 +503,11 @@ void led_trigger_register_simple(const char *name,
struct led_trigger **trigger);
void led_trigger_unregister_simple(struct led_trigger *trigger);
void led_trigger_event(struct led_trigger *trigger, enum led_brightness event);
-void led_trigger_blink(struct led_trigger *trigger, unsigned long *delay_on,
- unsigned long *delay_off);
+void led_trigger_blink(struct led_trigger *trigger, unsigned long delay_on,
+ unsigned long delay_off);
void led_trigger_blink_oneshot(struct led_trigger *trigger,
- unsigned long *delay_on,
- unsigned long *delay_off,
+ unsigned long delay_on,
+ unsigned long delay_off,
int invert);
void led_trigger_set_default(struct led_classdev *led_cdev);
int led_trigger_set(struct led_classdev *led_cdev, struct led_trigger *trigger);
@@ -530,11 +557,11 @@ static inline void led_trigger_unregister_simple(struct led_trigger *trigger) {}
static inline void led_trigger_event(struct led_trigger *trigger,
enum led_brightness event) {}
static inline void led_trigger_blink(struct led_trigger *trigger,
- unsigned long *delay_on,
- unsigned long *delay_off) {}
+ unsigned long delay_on,
+ unsigned long delay_off) {}
static inline void led_trigger_blink_oneshot(struct led_trigger *trigger,
- unsigned long *delay_on,
- unsigned long *delay_off,
+ unsigned long delay_on,
+ unsigned long delay_off,
int invert) {}
static inline void led_trigger_set_default(struct led_classdev *led_cdev) {}
static inline int led_trigger_set(struct led_classdev *led_cdev,
diff --git a/include/linux/platform_data/leds-lp55xx.h b/include/linux/platform_data/leds-lp55xx.h
index 3441064713a3..3cc8db0b12b5 100644
--- a/include/linux/platform_data/leds-lp55xx.h
+++ b/include/linux/platform_data/leds-lp55xx.h
@@ -73,6 +73,9 @@ struct lp55xx_platform_data {
/* Clock configuration */
u8 clock_mode;
+ /* Charge pump mode */
+ u32 charge_pump_mode;
+
/* optional enable GPIO */
struct gpio_desc *enable_gpiod;