From fb07193105941c721cb1af4e63455d741cdedba0 Mon Sep 17 00:00:00 2001
From: David Collins <collinsd@quicinc.com>
Date: Mon, 14 Oct 2019 17:24:41 -0700
Subject: [PATCH] dt-bindings: nvmem: add bindings for QTI SDAM devices

Qualcomm Technologies, Inc. (QTI) SDAM devices provide an
interface for other PMIC peripherals to access the shared
memory found on QTI PMICs.

Change-Id: Ia8ce10171f9cfa5249dc69c7edb4d66cb959ca80
---
 bindings/nvmem/qcom-spmi-sdam.txt | 49 +++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 bindings/nvmem/qcom-spmi-sdam.txt

diff --git a/bindings/nvmem/qcom-spmi-sdam.txt b/bindings/nvmem/qcom-spmi-sdam.txt
new file mode 100644
index 000000000000..b849a22e2c20
--- /dev/null
+++ b/bindings/nvmem/qcom-spmi-sdam.txt
@@ -0,0 +1,49 @@
+Qualcomm Technologies, Inc. Shared Direct Access Memory (SDAM)
+
+The SDAM provides scratch register space for the PMIC clients.
+This memory can be used by software to store information or communicate
+to/from the PBUS.
+
+Below are the DT bindings for this module
+
+Supported properties:
+
+- compatible
+  Usage:	required
+  Value type:	<string>
+  Definition:	Should be "qcom,spmi-sdam"
+
+- reg
+  Usage:	required
+  Value type:	<prop-encoded-array>
+  Definition:	The base address and size of the sdam peripheral.
+
+- Data cells
+  Usage:	required
+  Value type:	Subnodes with bindings described in bindings/nvmem/nvmem.txt.
+  Definition:	Cells defining the shared memory usage and configuration.
+
+Example:
+
+	sdam_1: sdam@b000 {
+		compatible = "qcom,spmi-sdam";
+		reg = <0xb000 0x100>;
+
+		....
+		/* Data cells */
+		restart_reason: restart@50 {
+			reg = <0x50 0x1>;
+			bits = <7 2>;
+		};
+	};
+
+= Data consumers =
+Are device nodes which consume nvmem data cells.
+
+Example:
+
+	{
+		...
+		nvmem-cells = <&restart_reason>;
+		nvmem-cell-names = "pmic_restart_reason";
+	};