mfd: Add LM3533 lighting-power core driver

Add support for National Semiconductor / TI LM3533 lighting power chips.

This is the core driver which provides register access over I2C and
registers the ambient-light-sensor, LED and backlight sub-drivers.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 38 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-bus-i2c-devices-lm3533 b/Documentation/ABI/testing/sysfs-bus-i2c-devices-lm3533
new file mode 100644
index 000000000000..570072180b8d
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-i2c-devices-lm3533
@@ -0,0 +1,38 @@
+What:           /sys/bus/i2c/devices/.../boost_freq
+Date:           April 2012
+KernelVersion:  3.5
+Contact:        Johan Hovold <jhovold@gmail.com>
+Description:
+                Set the boost converter switching frequency (0, 1), where
+
+                0 -  500Hz
+                1 - 1000Hz
+
+What:           /sys/bus/i2c/devices/.../boost_ovp
+Date:           April 2012
+KernelVersion:  3.5
+Contact:        Johan Hovold <jhovold@gmail.com>
+Description:
+                Set the boost converter over-voltage protection threshold
+                (0..3), where
+
+                0 - 16V
+                1 - 24V
+                2 - 32V
+                3 - 40V
+
+What:           /sys/bus/i2c/devices/.../output_hvled[n]
+Date:           April 2012
+KernelVersion:  3.5
+Contact:        Johan Hovold <jhovold@gmail.com>
+Description:
+                Set the controlling backlight device for high-voltage current
+                sink HVLED[n] (n = 1, 2) (0, 1).
+
+What:           /sys/bus/i2c/devices/.../output_lvled[n]
+Date:           April 2012
+KernelVersion:  3.5
+Contact:        Johan Hovold <jhovold@gmail.com>
+Description:
+                Set the controlling led device for low-voltage current sink
+                LVLED[n] (n = 1..5) (0..3).