Thread (34 messages) 34 messages, 7 authors, 2015-06-30

[PATCH v6 4/9] nvmem: Add bindings for simple nvmem framework

From: Stefan Wahren <hidden>
Date: 2015-06-23 20:36:23
Also in: linux-api, linux-arm-msm, linux-devicetree, lkml

quoted hunk ↗ jump to hunk
Srinivas Kandagatla [off-list ref] hat am 23. Juni 2015 um
01:08 geschrieben:


This patch adds bindings for simple nvmem framework which allows nvmem
consumers to talk to nvmem providers to get access to nvmem cell data.

Signed-off-by: Maxime Ripard <redacted>
[Maxime Ripard: intial version of eeprom framework]
Signed-off-by: Srinivas Kandagatla <redacted>
---
Documentation/devicetree/bindings/nvmem/nvmem.txt | 85 +++++++++++++++++++++++
1 file changed, 85 insertions(+)
create mode 100644 Documentation/devicetree/bindings/nvmem/nvmem.txt
diff --git a/Documentation/devicetree/bindings/nvmem/nvmem.txt
b/Documentation/devicetree/bindings/nvmem/nvmem.txt
new file mode 100644
index 0000000..d1a37e7
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/nvmem.txt
@@ -0,0 +1,85 @@
+= NVMEM(Non Volatile Memory) Data Device Tree Bindings =
+
+This binding is intended to represent the location of hardware
+configuration data stored in NVMEMs like eeprom, efuses and so on.
+
+On a significant proportion of boards, the manufacturer has stored
+some data on NVMEM, for the OS to be able to retrieve these information
+and act upon it. Obviously, the OS has to know about where to retrieve
+these data from, and where they are stored on the storage device.
+
+This document is here to document this.
+
+= Data providers =
+Contains bindings specific to provider drivers and data cells as children
+of this node.
+
+Optional properties:
+ read-only: Mark the provider as read only.
+
+= Data cells =
+These are the child nodes of the provider which contain data cell
+information like offset and size in nvmem provider.
+
+Required properties:
+reg: specifies the offset in byte within that storage device, start bit
+ in the byte and the length in bits of the data we care about.
Is the second parameter really in bits, not bytes?
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