On 03/07/2015 01:58 PM, Andy Shevchenko wrote:
On Sat, Mar 7, 2015 at 1:46 AM, <tthayer@xxxxxxxxxxxxxxxxxxxxx> wrote:
From: Thor Thayer <tthayer@xxxxxxxxxxxxxxxxxxxxx>
Altera's Arria10 architecture requires a 32bit write accesses for
APB peripherals. The current spi-dw driver uses 16bit accesses in
some locations. This patch updated the bindings with an optional
field in the devicetree to select 32bit accesses.
One comment below.
Signed-off-by: Thor Thayer <tthayer@xxxxxxxxxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/spi/spi-dw.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/spi/spi-dw.txt b/Documentation/devicetree/bindings/spi/spi-dw.txt
index 7b63ed6..034dbdd 100644
--- a/Documentation/devicetree/bindings/spi/spi-dw.txt
+++ b/Documentation/devicetree/bindings/spi/spi-dw.txt
@@ -11,6 +11,7 @@ Required properties:
Optional properties:
- cs-gpios: see spi-bus.txt
+- 32bit_access : use 32 bit register accesses
The most big issue for my opinion with DT is an absence of the
standard for naming properties.
So, why underscore? May be it's a time to append a generic description
of this field to Documentation/devicetree/…
Hi Andy,
I'm use the underscore to make it easier to read but I'm open to
suggestions.
I stay away from dashes because these variable names are problematic to
parse in languages like Python which may be used as an external tool.
I don't mind making it just 32bit if that is preferable or implementing
a better field name.
Thanks for reviewing
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