diff mbox series

[v5,14/24] dt-bindings: mfd: syscon: Add documentation for #syscon-cells property

Message ID 20170327094520.3129-15-kishon@ti.com
State New
Headers show
Series [v5,01/24] PCI: endpoint: Add EP core layer to enable EP controller and EP functions | expand

Commit Message

Kishon Vijay Abraham I March 27, 2017, 9:45 a.m. UTC
Add documentation for the optional #syscon-cells property to determine
the number of cells that should be given in the phandle while
referencing the syscon-node.

Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

---
 Documentation/devicetree/bindings/mfd/syscon.txt | 2 ++
 1 file changed, 2 insertions(+)

-- 
2.11.0

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Comments

Rob Herring March 31, 2017, 7:06 p.m. UTC | #1
On Fri, Mar 31, 2017 at 01:58:52PM -0500, Rob Herring wrote:
> On Mon, Mar 27, 2017 at 03:15:10PM +0530, Kishon Vijay Abraham I wrote:

> > Add documentation for the optional #syscon-cells property to determine

> > the number of cells that should be given in the phandle while

> > referencing the syscon-node.

> > 

> > Suggested-by: Rob Herring <robh@kernel.org>

> 

> I did? When?

> 

> I'm not remembering why we need this. Generally, phandles to a syscon 

> are for a single defined purpose. When do we need a list of them?


Ah, I remember now the context. I suggested using standard parsing 
function rather than open coding. I wasn't suggesting changing the 
binding. Instead of of_parse_phandle_with_args, can't 
of_parse_phandle_with_fixed_args work?

Rob
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diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/mfd/syscon.txt b/Documentation/devicetree/bindings/mfd/syscon.txt
index 408f768686f1..446b47e8fb71 100644
--- a/Documentation/devicetree/bindings/mfd/syscon.txt
+++ b/Documentation/devicetree/bindings/mfd/syscon.txt
@@ -16,6 +16,8 @@  Required properties:
 Optional property:
 - reg-io-width: the size (in bytes) of the IO accesses that should be
   performed on the device.
+- #syscon-cells: determine the number of cells that should be given in the
+  phandle while referencing this syscon-node.
 
 Examples:
 gpr: iomuxc-gpr@020e0000 {