WLED driver provides the interface to the display driver to
adjust the brightness of the display backlight.

Signed-off-by: Kiran Gunda <redacted>
---
 .../bindings/leds/backlight/qcom-spmi-wled.txt     |  90 ++++
 drivers/video/backlight/Kconfig                    |   9 +
 drivers/video/backlight/Makefile                   |   1 +
 drivers/video/backlight/qcom-spmi-wled.c           | 504 +++++++++++++++++++++
 4 files changed, 604 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/backlight/qcom-spmi-wled.txt
 create mode 100644 drivers/video/backlight/qcom-spmi-wled.c

diff --git a/Documentation/devicetree/bindings/leds/backlight/qcom-spmi-wled.txt b/Documentation/devicetree/bindings/leds/backlight/qcom-spmi-wled.txt
new file mode 100644
index 0000000..f1ea25b
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/backlight/qcom-spmi-wled.txt

@@ -0,0 +1,90 @@
+Binding for Qualcomm WLED driver
+
+WLED (White Light Emitting Diode) driver is used for controlling display
+backlight that is part of PMIC on Qualcomm Technologies reference platforms.
+The PMIC is connected to the host processor via SPMI bus.
+
+- compatible
+	Usage:      required
+	Value type: <string>
+	Definition: should be "qcom,pm8998-spmi-wled".
+
+- reg
+	Usage:      required
+	Value type: <prop-encoded-array>
+	Definition:  Base address and size of the WLED modules.
+
+- reg-names
+	Usage:      required
+	Value type: <string>
+	Definition:  Names associated with base addresses. should be
+		     "qcom-wled-ctrl-base", "qcom-wled-sink-base".
+
+- label
+	Usage:      required
+	Value type: <string>
+	Definition: The name of the backlight device.
+
+- default-brightness
+	Usage:      optional
+	Value type: <u32>
+	Definition: brightness value on boot, value from: 0-4095
+		    default: 2048
+
+- qcom,fs-current-limit