Add DT binding documentation for the Pixel Pipeline (PXP) found on
various NXP i.MX SoCs.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
---
No changes since v2.
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 .../devicetree/bindings/media/fsl-pxp.txt     | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/fsl-pxp.txt

diff --git a/Documentation/devicetree/bindings/media/fsl-pxp.txt b/Documentation/devicetree/bindings/media/fsl-pxp.txt
new file mode 100644
index 000000000000..2477e7f87381
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/fsl-pxp.txt

@@ -0,0 +1,26 @@
+Freescale Pixel Pipeline
+========================
+
+The Pixel Pipeline (PXP) is a memory-to-memory graphics processing engine
+that supports scaling, colorspace conversion, alpha blending, rotation, and
+pixel conversion via lookup table. Different versions are present on various
+i.MX SoCs from i.MX23 to i.MX7.
+
+Required properties:
+- compatible: should be "fsl,<soc>-pxp", where SoC can be one of imx23, imx28,
+  imx6dl, imx6sl, imx6ul, imx6sx, imx6ull, or imx7d.