linux-kernel - Re: [PATCH v3 2/5] pinctrl: st: Enhance the controller to manage unavailable registers

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Date:	Tue, 11 Mar 2014 11:12:34 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	Maxime Coquelin <maxime.coquelin@...com>
Cc:	Rob Landley <rob@...dley.net>, Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	Srinivas Kandagatla <srinivas.kandagatla@...com>,
	Stuart Menefy <stuart.menefy@...com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Giuseppe Cavallaro <peppe.cavallaro@...com>,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	kernel@...inux.com
Subject: Re: [PATCH v3 2/5] pinctrl: st: Enhance the controller to manage
 unavailable registers

> >>From: Giuseppe Cavallaro <peppe.cavallaro@...com>
> >>
> >>This patch adds a new logic inside the st pinctrl to manage
> >>an unsupported scenario: some sysconfig are not available!
> >>
> >>This is the case of STiH407 where, although documented, the
> >>following registers from SYSCFG_FLASH have been removed from the SoC.
> >>
> >>SYSTEM_CONFIG3040
> >>    Output Enable pad control for all PIO Alternate Functions
> >>and
> >>SYSTEM_ CONFIG3050
> >>    Pull Up pad control for all PIO Alternate Functions
> >>
> >>Without managing this condition an imprecise external abort
> >>will be detect.
> >>
> >>To do this the patch also reviews the st_parse_syscfgs
> >>and other routines to manipulate the registers only if
> >>actually available.
> >>In any case, for example the st_parse_syscfgs detected
> >>an error condition but no action was made in the
> >>st_pctl_probe_dt.
> >>
> >>Signed-off-by: Maxime Coquelin <maxime.coquelin@...com>
> >>Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@...com>

No problem with any of your comments. Once the fixups have been made,
feel free to apply my:

  Acked-by: Lee Jones <lee.jones@...aro.org>  

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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