From 047da762b9a937d60c16e2c8392c326e5ab11a1d Mon Sep 17 00:00:00 2001 From: Yauhen Kharuzhy Date: Sun, 30 Apr 2023 21:59:48 +0200 Subject: leds: Add Intel Cherry Trail Whiskey Cove PMIC LED driver Add support for LEDs connected to the Intel Cherry Trail Whiskey Cove PMIC. Charger and general-purpose LEDs are supported. Hardware blinking is implemented, breathing is not. This driver was tested with Lenovo Yoga Book notebook. Changes by Hans de Goede (in response to review of v2): - Since the PMIC is connected to the battery any changes we make to the LED settings are permanent, even surviving reboot / poweroff. Save LED1 register settings on probe() and if auto-/hw-control was enabled on probe() restore the settings on remove() and shutdown(). - Delay switching LED1 to software control mode to first brightness write. - Use dynamically allocated drvdata instead of a global drvdata variable. - Ensure the LED is on when activating blinking. - Fix CHT_WC_LED_EFF_BREATHING val ((3 << 1) rather then BIT(3)). Link: https://lore.kernel.org/r/20190212205901.13037-2-jekhor@gmail.com Signed-off-by: Yauhen Kharuzhy Co-developed-by: Hans de Goede Signed-off-by: Hans de Goede Link: https://lore.kernel.org/r/20230430195952.862527-2-hdegoede@redhat.com Signed-off-by: Lee Jones --- drivers/leds/Kconfig | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers/leds/Kconfig') diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 2c5fdf848210..1536f3a10146 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -122,6 +122,17 @@ config LEDS_BCM6358 This option enables support for LEDs connected to the BCM6358 LED HW controller accessed via MMIO registers. +config LEDS_CHT_WCOVE + tristate "LED support for Intel Cherry Trail Whiskey Cove PMIC" + depends on LEDS_CLASS + depends on INTEL_SOC_PMIC_CHTWC + help + This option enables support for charger and general purpose LEDs + connected to the Intel Cherrytrail Whiskey Cove PMIC. + + To compile this driver as a module, choose M here: the module + will be called leds-cht-wcove. + config LEDS_CPCAP tristate "LED Support for Motorola CPCAP" depends on LEDS_CLASS -- cgit v1.2.3