Re: [PATCH REGRESSION-FIX resend] pwm: lpss: Set enable-bit before waiting for update-bit

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

On Sat, 2017-03-25 at 15:06 +0100, Hans de Goede wrote:
> Hi Andy, Thierry,
> 
> This patch fixes a regression with the pwm-lpss driver in 4.11,
> where it once turned off will not turn back on again on some
> machines. Yet it has been silent around this patch for some
> time now. Can you please review this and get it queued as a fix
> for 4.11 ?

I have tested this patch (*) on 3 boards:
1) internal development board (ApolloLake)
2) MinnowBoard MAX (BayTrail)
3) Intel Edison / Arduino break out (Tangier)
4) ...not yet... (CherryTrail / Braswell)

So, the patch *broke* functionality on 1), while 2) and 3) are survived.

(*) The base is my eds branch (https://github.com/andy-shev/linux/tree/e
ds, v4.11-rc4 based) + few pin control related patches to enable PWM
output.

P.S. I'll continue looking for CherryTrail / Braswell based board to
have some coverage there in the future.

-- 
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy