From 1490cbb9dbfd0eabfe45f9b674097aea7e6760fc Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 10 Mar 2025 16:54:51 +0200 Subject: device property: Split fwnode_get_child_node_count() The new helper is introduced to allow counting the child firmware nodes of their parent without requiring a device to be passed. This also makes the fwnode and device property API more symmetrical with the rest. Signed-off-by: Andy Shevchenko Acked-by: "Rafael J. Wysocki" Reviewed-by: Sakari Ailus Reviewed-by: Heikki Krogerus Reviewed-by: Jonathan Cameron Link: https://lore.kernel.org/r/20250310150835.3139322-2-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones --- include/linux/property.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/property.h b/include/linux/property.h index e214ecd241eb..bc5bfc98176b 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -208,7 +208,12 @@ DEFINE_FREE(fwnode_handle, struct fwnode_handle *, fwnode_handle_put(_T)) int fwnode_irq_get(const struct fwnode_handle *fwnode, unsigned int index); int fwnode_irq_get_byname(const struct fwnode_handle *fwnode, const char *name); -unsigned int device_get_child_node_count(const struct device *dev); +unsigned int fwnode_get_child_node_count(const struct fwnode_handle *fwnode); + +static inline unsigned int device_get_child_node_count(const struct device *dev) +{ + return fwnode_get_child_node_count(dev_fwnode(dev)); +} static inline int device_property_read_u8(const struct device *dev, const char *propname, u8 *val) -- cgit v1.2.3 From 6a09ae8281986d5fb5ce0115135c05a5afb8718e Mon Sep 17 00:00:00 2001 From: Richard Leitner Date: Wed, 7 May 2025 09:51:31 +0200 Subject: leds: flash: Add support for flash/strobe duration Add support for the new V4L2_CID_FLASH_DURATION control to the LEDs driver. Signed-off-by: Richard Leitner Link: https://lore.kernel.org/r/20250507-ov9282-flash-strobe-v4-2-72b299c1b7c9@linux.dev Signed-off-by: Lee Jones --- include/linux/led-class-flash.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'include') diff --git a/include/linux/led-class-flash.h b/include/linux/led-class-flash.h index 36df927ec4b7..21ec856c36bc 100644 --- a/include/linux/led-class-flash.h +++ b/include/linux/led-class-flash.h @@ -45,6 +45,8 @@ struct led_flash_ops { int (*timeout_set)(struct led_classdev_flash *fled_cdev, u32 timeout); /* get the flash LED fault */ int (*fault_get)(struct led_classdev_flash *fled_cdev, u32 *fault); + /* set flash duration */ + int (*duration_set)(struct led_classdev_flash *fled_cdev, u32 duration); }; /* @@ -75,6 +77,9 @@ struct led_classdev_flash { /* flash timeout value in microseconds along with its constraints */ struct led_flash_setting timeout; + /* flash timeout value in microseconds along with its constraints */ + struct led_flash_setting duration; + /* LED Flash class sysfs groups */ const struct attribute_group *sysfs_groups[LED_FLASH_SYSFS_GROUPS_SIZE]; }; @@ -209,4 +214,15 @@ int led_set_flash_timeout(struct led_classdev_flash *fled_cdev, u32 timeout); */ int led_get_flash_fault(struct led_classdev_flash *fled_cdev, u32 *fault); +/** + * led_set_flash_duration - set flash LED duration + * @fled_cdev: the flash LED to set + * @timeout: the flash duration to set it to + * + * Set the flash strobe duration. + * + * Returns: 0 on success or negative error value on failure + */ +int led_set_flash_duration(struct led_classdev_flash *fled_cdev, u32 duration); + #endif /* __LINUX_FLASH_LEDS_H_INCLUDED */ -- cgit v1.2.3