From ef12379f205bed7e92434e12ddd44e62d13bebe1 Mon Sep 17 00:00:00 2001 From: Hartley Sweeten Date: Wed, 29 Jul 2009 22:41:06 +0100 Subject: ARM: 5628/1: ep93xx: Introduce Pulse Width Modulator (PWM) driver The EP93xx features two PWMs (one on the EP9307) with the following features: * Configurable dual output * Separate input clocks for each PWM output * 16-bit resolution * Programmable pulse width (duty cycle), interval (frequency), and polarity This adds the necessary core support as well as the driver. A sysfs interface is provided to control the PWM outputs. Signed-off-by: Matthieu Crapet Signed-off-by: H Hartley Sweeten Acked-by: Ryan Mallon Signed-off-by: Russell King --- drivers/misc/Kconfig | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'drivers/misc/Kconfig') diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 68ab39d7cb35..df1f86b5c83e 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -233,6 +233,19 @@ config ISL29003 This driver can also be built as a module. If so, the module will be called isl29003. +config EP93XX_PWM + tristate "EP93xx PWM support" + depends on ARCH_EP93XX + help + This option enables device driver support for the PWM channels + on the Cirrus EP93xx processors. The EP9307 chip only has one + PWM channel all the others have two, the second channel is an + alternate function of the EGPIO14 pin. A sysfs interface is + provided to control the PWM channels. + + To compile this driver as a module, choose M here: the module will + be called ep93xx_pwm. + source "drivers/misc/c2port/Kconfig" source "drivers/misc/eeprom/Kconfig" source "drivers/misc/cb710/Kconfig" -- cgit v1.2.3