mfd: Add MAX8907 core driver
The MAX8907 is an I2C-based power-management IC containing voltage
regulators, a reset controller, a real-time clock, and a touch-screen
controller.
The original driver was written by:
* Gyungoh Yoo <jack.yoo@maxim-ic.com>
Various fixes and enhancements by:
* Jin Park <jinyoungp@nvidia.com>
* Tom Cherry <tcherry@nvidia.com>
* Prashant Gaikwad <pgaikwad@nvidia.com>
* Dan Willemsen <dwillemsen@nvidia.com>
* Laxman Dewangan <ldewangan@nvidia.com>
During upstreaming, I (swarren):
* Converted to regmap.
* Converted to regmap-irq.
* Allowed probing from device tree.
* Renamed from max8907c->max8907, since the driver covers at least the
C and B revisions.
* General cleanup.
Signed-off-by: Gyungoh Yoo <jack.yoo@maxim-ic.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> #v3
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index d1facef..856ec00 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -476,6 +476,18 @@
additional drivers must be enabled in order to use the functionality
of the device.
+config MFD_MAX8907
+ tristate "Maxim Semiconductor MAX8907 PMIC Support"
+ select MFD_CORE
+ depends on I2C=y && GENERIC_HARDIRQS
+ select REGMAP_I2C
+ select REGMAP_IRQ
+ help
+ Say yes here to support for Maxim Semiconductor MAX8907. This is
+ a Power Management IC. This driver provides common support for
+ accessing the device; additional drivers must be enabled in order
+ to use the functionality of the device.
+
config MFD_MAX8925
bool "Maxim Semiconductor MAX8925 PMIC Support"
depends on I2C=y && GENERIC_HARDIRQS