Re: [PATCH RFC] [media] s5k6aa: set usleep_range greater 0

From: Nicholas Mc Guire
Date: Wed Dec 14 2016 - 20:14:20 EST

On Tue, Dec 13, 2016 at 03:53:47PM +0100, Sylwester Nawrocki wrote:
> Hi Laurent,
> On 12/13/2016 03:10 PM, Laurent Pinchart wrote:
> > As pointed out by Ian Arkver, the datasheet states the delay should be >50µs.
> > Would it make sense to reduce the sleep duration to (3000, 4000) for instance
> > (or possibly even lower), instead of increasing it ?
> Theoretically it would make sense, I believe the delay call should really
> be part of the set_power callback. I think it is safe to decrease the
> delay value now, the boards using that driver have been dropped with commit
> commit ca9143501c30a2ce5886757961408488fac2bb4c
> ARM: EXYNOS: Remove unused board files
> As far as I am concerned you can do whatever you want with that delay
> call, remove it or decrease value, whatever helps to stop triggering
> warnings from the static analysis tools.
if its actually unused then it might be best to completely drop the code
raher than fixing up dead-code. Is the EXYNOS the only system that had
this device in use ? If it shold stay in then setting it to the above
proposed 3000, 4000 would seem the most resonable to me as I asume this
change would stay untested.