linux-kernel - Re: [PATCH v2 18/28] pinctrl: renesas: rzg2l: add support for different ds values on different groups

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Date:   Fri, 29 Sep 2023 10:24:44 +0100
From:   Paul Barker <paul.barker.ct@...renesas.com>
To:     Claudiu <claudiu.beznea@...on.dev>, geert+renesas@...der.be,
        mturquette@...libre.com, sboyd@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        linus.walleij@...aro.org, gregkh@...uxfoundation.org,
        jirislaby@...nel.org, magnus.damm@...il.com,
        catalin.marinas@....com, will@...nel.org,
        quic_bjorande@...cinc.com, konrad.dybcio@...aro.org, arnd@...db.de,
        neil.armstrong@...aro.org, prabhakar.mahadev-lad.rj@...renesas.com,
        biju.das.jz@...renesas.com
Cc:     linux-renesas-soc@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-serial@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 18/28] pinctrl: renesas: rzg2l: add support for
 different ds values on different groups

On 29/09/2023 06:39, Claudiu wrote:
> From: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
> 
> RZ/G3S supports different drive strength values for different power sources
> and pin groups (A, B, C). On each group there could be up to 4 drive
> strength values per power source. Available power sources are 1v8, 2v5,
> 3v3. Drive strength values are fine tuned than what was previously

Should this be "are more fine tuned" or "are less fine tuned"?

> available on the driver thus the necessity of having micro-amp support.
> As drive strength and power source values are linked together the
> hardware setup for these was moved at the end of
> rzg2l_pinctrl_pinconf_set() to ensure proper validation of the new
> values.
> 
> The drive strength values are expected to be initialized though SoC
> specific hardware configuration data structure.
> 
> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>

Thanks,
Paul

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