nvmem: qfprom: Add bindings for qfprom

This patch adds bindings for qfprom found in QCOM SOCs. QFPROM driver
is based on simple nvmem framework.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/Documentation/devicetree/bindings/nvmem/qfprom.txt b/Documentation/devicetree/bindings/nvmem/qfprom.txt
new file mode 100644 (file)
index 0000000..4ad68b7
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/qfprom.txt
@@ -0,0 +1,35 @@
+= Qualcomm QFPROM device tree bindings =
+
+This binding is intended to represent QFPROM which is found in most QCOM SOCs.
+
+Required properties:
+- compatible: should be "qcom,qfprom"
+- reg: Should contain registers location and length
+
+= Data cells =
+Are child nodes of qfprom, bindings of which as described in
+bindings/nvmem/nvmem.txt
+
+Example:
+
+       qfprom: qfprom@00700000 {
+               compatible      = "qcom,qfprom";
+               reg             = <0x00700000 0x8000>;
+               ...
+               /* Data cells */
+               tsens_calibration: calib@404 {
+                       reg = <0x4404 0x10>;
+               };
+       };
+
+
+= Data consumers =
+Are device nodes which consume nvmem data cells.
+
+For example:
+
+       tsens {
+               ...
+               nvmem-cells = <&tsens_calibration>;
+               nvmem-cell-names = "calibration";
+       };