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| author | Milo Kim <milo.kim@ti.com> | 2013-12-06 11:18:41 +0900 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2014-01-21 08:27:59 +0000 |
| commit | 470eca47bded10f2e1a425b44d6f2b1418271a9f (patch) | |
| tree | 9e302eabaeb9fd2edd3dfd3c28d821c109f60487 /drivers/mfd/Makefile | |
| parent | 0cc59b9d98d554168915b3765a14e8b4ad75918c (diff) | |
| download | blackbird-op-linux-470eca47bded10f2e1a425b44d6f2b1418271a9f.tar.gz blackbird-op-linux-470eca47bded10f2e1a425b44d6f2b1418271a9f.zip | |
mfd: Add LP3943 MFD driver
LP3943 has 16 output pins which can be used as GPIO expander and PWM generator.
* Regmap I2C interface for R/W LP3943 registers
* Atomic operations for output pin assignment
The driver should check whether requested pin is available or not.
If the pin is already used, pin request returns as a failure.
A driver data, 'pin_used' is checked when gpio_request() and
pwm_request() are called. If the pin is available, then pin_used is set.
And it is cleared when gpio_free() and pwm_free().
* Device tree support
Compatible strings for GPIO and PWM driver.
LP3943 platform data is PWM related, so parsing the device tree is
implemented in the PWM driver.
Signed-off-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/Makefile')
| -rw-r--r-- | drivers/mfd/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 2e18b05017d9..5aea5ef0a62f 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -102,6 +102,7 @@ obj-$(CONFIG_PMIC_DA9052) += da9052-core.o obj-$(CONFIG_MFD_DA9052_SPI) += da9052-spi.o obj-$(CONFIG_MFD_DA9052_I2C) += da9052-i2c.o +obj-$(CONFIG_MFD_LP3943) += lp3943.o obj-$(CONFIG_MFD_LP8788) += lp8788.o lp8788-irq.o da9055-objs := da9055-core.o da9055-i2c.o |
