linux-kernel - Re: [PATCH 0/7] gpio: omap: fixes and improvements

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Date:	Tue, 18 Aug 2015 23:38:52 -0700
From:	Tony Lindgren <tony@...mide.com>
To:	Grygorii Strashko <grygorii.strashko@...com>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	Alexandre Courbot <gnurou@...il.com>, ssantosh@...nel.org,
	Kevin Hilman <khilman@...prootsystems.com>,
	Javier Martinez Canillas <javier@...hile0.org>,
	linux-omap@...r.kernel.org, linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/7] gpio: omap: fixes and improvements

Hi,

* Grygorii Strashko <grygorii.strashko@...com> [150818 04:14]:
> Hi,
> 
> This patch series contains set of trivial fixes and improvements, and also
> patches which fixes wrong APIs usage in atomic context as for -RT as for
> non-RT kernel. The final goal of this series is to make TI OMAP GPIO
> driver compatible with -RT kernel as much as possible.
> 
> Patch 1-4: trivial fixes and improvements
> Patch 5: fixes wrong CLK clk_prepare/unprepare APIs usage in atomic contexet
> Patch 6(rfc): required to be compatible with -RT kernel, because PM runtime
>  can't be used in atimic context on -RT.
> Patch 7(rfc): This patch converts TI OMAP GPIO driver to use generic irq
>  handler instead of chained IRQ handler. This way OMAP GPIO driver will be
>  compatible with RT kernel where it will be forced thread IRQ handler
>  while in non-RT kernel it still will be executed in HW IRQ context.

Based on quick testing this series breaks at least core off idle for omap3.
You probably should add a beagle xm to your test devices so you can
properly test PM features.

Regards,

Tony
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