From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: Chen-Yu Tsai <wenst@chromium.org>,
Sean Wang <sean.wang@kernel.org>,
Linus Walleij <linus.walleij@linaro.org>,
Matthias Brugger <matthias.bgg@gmail.com>
Cc: linux-mediatek@lists.infradead.org, linux-gpio@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 08/11] pinctrl: mediatek: paris: Support generic PIN_CONFIG_DRIVE_STRENGTH_UA
Date: Tue, 8 Mar 2022 16:27:13 +0100 [thread overview]
Message-ID: <8e2b68b7-4532-b8d6-f803-3e4e2bca6a72@collabora.com> (raw)
In-Reply-To: <20220308100956.2750295-9-wenst@chromium.org>
Il 08/03/22 11:09, Chen-Yu Tsai ha scritto:
> Some of the MediaTek chips that utilize the Paris pinctrl driver library
> support a lower drive strength (<= 1mA) than the standard drive strength
> settings (2~16 mA) on certain pins. This was previously supported by the
> custom MTK_PIN_CONFIG_DRV_ADV parameter along with the
> "mediatek,drive-strength-adv" device tree property.
>
> The drive strength values for this hardware are 125, 250, 500, and 1000 mA,
> and can be readily described by the existing "drive-strength-microamp"
> property, which then gets parsed by the generic pinconf library into the
> parameter PIN_CONFIG_DRIVE_STRENGTH_UA.
>
> Add support for PIN_CONFIG_DRIVE_STRENGTH_UA while keeping the old
> custom parameter around for backward compatibility.
>
> Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> ---
> drivers/pinctrl/mediatek/pinctrl-paris.c | 99 ++++++++++++++++++++++++
> 1 file changed, 99 insertions(+)
>
next prev parent reply other threads:[~2022-03-08 15:27 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-08 10:09 [PATCH v2 00/11] pinctrl: mediatek: Fixes and minor improvements Chen-Yu Tsai
2022-03-08 10:09 ` [PATCH v2 01/11] pinctrl: pinconf-generic: Print arguments for bias-pull-* Chen-Yu Tsai
2022-03-08 10:09 ` [PATCH v2 02/11] pinctrl: mediatek: paris: Fix PIN_CONFIG_BIAS_* readback Chen-Yu Tsai
2022-03-08 15:27 ` AngeloGioacchino Del Regno
2022-03-08 10:09 ` [PATCH v2 03/11] pinctrl: mediatek: paris: Fix "argument" argument type for mtk_pinconf_get() Chen-Yu Tsai
2022-03-08 10:09 ` [PATCH v2 04/11] pinctrl: mediatek: paris: Fix pingroup pin config state readback Chen-Yu Tsai
2022-03-08 10:09 ` [PATCH v2 05/11] pinctrl: mediatek: paris: Drop extra newline in mtk_pctrl_show_one_pin() Chen-Yu Tsai
2022-03-09 20:01 ` Joe Perches
2022-03-10 3:37 ` Chen-Yu Tsai
2022-03-08 10:09 ` [PATCH v2 06/11] pinctrl: mediatek: paris: Skip custom extra pin config dump for virtual GPIOs Chen-Yu Tsai
2022-03-08 10:09 ` [PATCH v2 07/11] pinctrl: mediatek: paris: Rework mtk_pinconf_{get,set} switch/case logic Chen-Yu Tsai
2022-03-08 15:27 ` AngeloGioacchino Del Regno
2022-03-08 10:09 ` [PATCH v2 08/11] pinctrl: mediatek: paris: Support generic PIN_CONFIG_DRIVE_STRENGTH_UA Chen-Yu Tsai
2022-03-08 15:27 ` AngeloGioacchino Del Regno [this message]
2022-03-08 10:09 ` [PATCH v2 09/11] pinctrl: mediatek: pinctrl-moore: Simplify with dev_err_probe() Chen-Yu Tsai
2022-03-08 10:09 ` [PATCH v2 10/11] pinctrl: mediatek: pinctrl-paris: " Chen-Yu Tsai
2022-03-08 10:09 ` [PATCH v2 11/11] pinctrl: mediatek: pinctrl-mtk-common: " Chen-Yu Tsai
2022-03-15 0:24 ` [PATCH v2 00/11] pinctrl: mediatek: Fixes and minor improvements Linus Walleij
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