Re: [PATCH v2 4/4] dt-bindings/watchdog: Add access_cs0 option for alt-boot

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On Tue, 27 Aug 2019, at 09:38, Guenter Roeck wrote:
> On 8/26/19 4:57 PM, Andrew Jeffery wrote:
> > 
> > 
> > On Mon, 26 Aug 2019, at 20:17, Ivan Mikhaylov wrote:
> >> The option for the ast2400/2500 to get access to CS0 at runtime.
> >>
> >> Signed-off-by: Ivan Mikhaylov <i.mikhaylov@xxxxxxxxx>
> >> ---
> >>   Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt | 7 +++++++
> >>   1 file changed, 7 insertions(+)
> >>
> >> diff --git a/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt
> >> b/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt
> >> index c5077a1f5cb3..023a9b578df6 100644
> >> --- a/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt
> >> +++ b/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt
> >> @@ -34,6 +34,13 @@ Optional properties:
> >>                   engine is responsible for this.
> >>   
> >>    - aspeed,alt-boot:    If property is present then boot from alternate
> >> block.
> >> +                       At alternate side 'access_cs0' sysfs file
> >> provides:
> > 
> > Why are we talking about sysfs in the devicetree binding? This patch
> > doesn't seem right to me.
> > 
> 
> Correct; this is the wrong document. The attribute also will need
> to be better explained. "At alternate side" does not explain (at
> least not at all clearly enough) that the attribute only exists
> if the system has booted from the alternate flash / block.
> 
> > Also if we're not supporting the aspeed,alt-boot property we should
> > probably document it as deprecated rather than making it disappear,
> > unless you're going to fix the systems that are using it.
> > 
> Sorry, you lost me here. Where is it made to disappear ?

Oh, hah, I read the bullet '-' as a diff marker. Maybe I should go back to
bed!

Andrew



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