Documentation/ABI: add sysfs interface for s6e63m0 lcd driver

Document sysfs attributes of s6e63m0 lcd panel driver by looking through
git logs and reading code.

Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

diff --git a/Documentation/ABI/testing/sysfs-class-lcd-s6e63m0 b/Documentation/ABI/testing/sysfs-class-lcd-s6e63m0
new file mode 100644 (file)
index 0000000..ae0a2d3
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-lcd-s6e63m0
@@ -0,0 +1,27 @@
+sysfs interface for the S6E63M0 AMOLED LCD panel driver
+-------------------------------------------------------
+
+What:          /sys/class/lcd/<lcd>/gamma_mode
+Date:          May, 2010
+KernelVersion: v2.6.35
+Contact:       dri-devel@lists.freedesktop.org
+Description:
+               (RW) Read or write the gamma mode. Following three modes are
+               supported:
+               0 - gamma value 2.2,
+               1 - gamma value 1.9 and
+               2 - gamma value 1.7.
+
+
+What:          /sys/class/lcd/<lcd>/gamma_table
+Date:          May, 2010
+KernelVersion: v2.6.35
+Contact:       dri-devel@lists.freedesktop.org
+Description:
+               (RO) Displays the size of the gamma table i.e. the number of
+               gamma modes available.
+
+This is a backlight lcd driver. These interfaces are an extension to the API
+documented in Documentation/ABI/testing/sysfs-class-lcd and in
+Documentation/ABI/stable/sysfs-class-backlight (under
+/sys/class/backlight/<backlight>/).