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From: jacopo mondi <jacopo@jmondi.org>
To: Chris Brandt <Chris.Brandt@renesas.com>
Cc: Linus Walleij <linus.walleij@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"linux-renesas-soc@vger.kernel.org"
	<linux-renesas-soc@vger.kernel.org>,
	Simon Horman <horms+renesas@verge.net.au>,
	Jacopo Mondi <jacopo+renesas@jmondi.org>
Subject: Re: [PATCH 1/2] pinctrl: rza1: add support for RZ/A1L
Date: Tue, 3 Oct 2017 18:17:38 +0200	[thread overview]
Message-ID: <20171003161738.GK4037@w540> (raw)
In-Reply-To: <SG2PR06MB1165669027CDC7F76808EADB8A720@SG2PR06MB1165.apcprd06.prod.outlook.com>

Hi Chris,

On Tue, Oct 03, 2017 at 03:40:51PM +0000, Chris Brandt wrote:
> Hi Jacopo,
>
>
> Yes, that 'are' listed in the table. But for a good reason.
>
> The TIOC pins can be uses as an output (PWM for example) or as a input
> (input capture for example), so they are not really a fixed direction.
> That is why the user needs to specify how they plan to use them in the DT.
> And...that's also why it doesn't make sense to put them in the
> rza1l_swio_pins[] array (we have no idea how they want to use them).
>
> So, the hardware manual has the TIOC pins in the SWIO table to tell the
> user 'hey, you have to manually set these pins to either input or output
> yourself because we can't magically know what you want to use them for.
>
> But...
> The reason for the rza1l_swio_pins[] array is for weird pin
> configurations that are fixed (like LCD LVDS output pins need to be configured as
> inputs).
>
>
> > Thanks for double checking. Your source from Japan is more
> > authoritative than manuals and defintely more accurate than me ;)
>
> So, after all that, I don't think we found any issues with my patch.
> Correct???

Correct! :)
After your clarification above, for both patches:

Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>

Thanks
   j

>
>
> Thanks!
>
> Chris
>

  reply	other threads:[~2017-10-03 16:17 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-03  7:33 [PATCH 0/2] pinctrl: rza1: add support for RZ/A1L Chris Brandt
2017-10-03  7:33 ` [PATCH 1/2] " Chris Brandt
2017-10-03  8:31   ` jacopo mondi
2017-10-03 13:36     ` Chris Brandt
2017-10-03 15:04       ` jacopo mondi
2017-10-03 15:40         ` Chris Brandt
2017-10-03 16:17           ` jacopo mondi [this message]
     [not found] ` <20171003073334.18917-1-chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
2017-10-03  7:33   ` [PATCH 2/2] dt-bindings: pinctrl: " Chris Brandt
     [not found]     ` <20171003073334.18917-3-chris.brandt-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org>
2017-10-04 13:58       ` Geert Uytterhoeven
2017-10-04 14:16         ` Chris Brandt
2017-10-04 14:27           ` Geert Uytterhoeven
2017-10-04 14:43             ` Chris Brandt
2017-10-04 14:49               ` Geert Uytterhoeven
2017-10-04 14:57                 ` Chris Brandt

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