diff options
| author | Hartley Sweeten <hartleys@visionengravers.com> | 2009-07-29 22:41:06 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-07-30 17:45:43 +0100 |
| commit | ef12379f205bed7e92434e12ddd44e62d13bebe1 (patch) | |
| tree | c372f5741826e7fbdaec8eac86191b52e3e621af /drivers/misc/Kconfig | |
| parent | 3aa7a9a3cf8774f6701b1903a6353f9545f561ce (diff) | |
| download | lwn-ef12379f205bed7e92434e12ddd44e62d13bebe1.tar.gz lwn-ef12379f205bed7e92434e12ddd44e62d13bebe1.zip | |
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 <mcrapet@gmail.com>
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Ryan Mallon <ryan@bluewatersys.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/misc/Kconfig')
| -rw-r--r-- | drivers/misc/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
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" |