linux-kernel - Re: [PATCH] pinctrl: meson: Fix wrong shift value when get drive-strength

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Date:   Tue, 7 Jan 2020 11:21:48 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Qianggui Song <qianggui.song@...ogic.com>
Cc:     "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Neil Armstrong <narmstrong@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Xingyu Chen <xingyu.chen@...ogic.com>,
        Jianxin Pan <jianxin.pan@...ogic.com>,
        Guillaume La Roque <glaroque@...libre.com>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "open list:ARM/Amlogic Meson..." <linux-amlogic@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] pinctrl: meson: Fix wrong shift value when get drive-strength

On Thu, Dec 26, 2019 at 3:37 AM Qianggui Song <qianggui.song@...ogic.com> wrote:

> In meson_pinconf_get_drive_strength, variable bit is calculated by
> meson_calc_reg_and_bit, this value is the offset from the first pin of a
> certain bank to current pin, while Meson SoCs use two bits for each pin
> to depict drive-strength. So a left shift by 1 should be done or node
> pinconf-pins shows wrong message.
>
> Fixes: 6ea3e3bbef37 ("pinctrl: meson: add support of drive-strength-microamp")
>
> Signed-off-by: Qianggui Song <qianggui.song@...ogic.com>

Patch applied.

Yours,
Linus Walleij