From a8dd18feb68ef0c5d3ec02f7d198740ddd7e8fd3 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Thu, 15 Oct 2009 02:59:35 +0200 Subject: leds: Add driver for LT3593 controlled LEDs The LT3593 is a step-up DC/DC converter designed to drive up to ten white LEDs in series. The current flow can be set with a control pin. This driver controls any number of such devices connected on generic GPIOs and exports the function as as platform_driver. The gpio_led platform data struct definition is reused for this purpose. Successfully tested on a PXA embedded board. Signed-off-by: Daniel Mack Signed-off-by: Richard Purdie --- drivers/leds/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/leds/Kconfig') diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index e481d3c..e2b7a53 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -245,6 +245,14 @@ config LEDS_INTEL_SS4200 drive or power LEDs on the front panel. Using this driver can stop the front LED from blinking after startup. +config LEDS_LT3593 + tristate "LED driver for LT3593 controllers" + depends on LEDS_CLASS && GENERIC_GPIO + help + This option enables support for LEDs driven by a Linear Technology + LT3593 controller. This controller uses a special one-wire pulse + coding protocol to set the brightness. + comment "LED Triggers" config LEDS_TRIGGERS -- cgit v1.1