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,
Zhiyong Tao <zhiyong.tao@mediatek.com>,
Guodong Liu <guodong.liu@mediatek.com>
Subject: Re: [PATCH 4/7] pinctrl: mediatek: paris: Fix pingroup pin config state readback
Date: Tue, 11 Jan 2022 14:42:23 +0100 [thread overview]
Message-ID: <97f46bb0-b446-92da-a83c-751f8b918570@collabora.com> (raw)
In-Reply-To: <20220111112244.1483783-5-wenst@chromium.org>
Il 11/01/22 12:22, Chen-Yu Tsai ha scritto:
> mtk_pconf_group_get(), used to read back pingroup pin config state,
> simply returns a set of configs saved from a previous invocation of
> mtk_pconf_group_set(). This is an unfiltered, unvalidated set passed
> in from the pinconf core, which does not match the current hardware
> state.
>
> Since the driver library is designed to have a pin per group, pass
> through mtk_pconf_group_get() to mtk_pinconf_get(), to read back
> the current pin config state of the only pin in the group.
>
> Fixes: 805250982bb5 ("pinctrl: mediatek: add pinctrl-paris that implements the vendor dt-bindings")
> Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> ---
> drivers/pinctrl/mediatek/pinctrl-paris.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/pinctrl/mediatek/pinctrl-paris.c b/drivers/pinctrl/mediatek/pinctrl-paris.c
> index d720624d8cd2..d259f075c62d 100644
> --- a/drivers/pinctrl/mediatek/pinctrl-paris.c
> +++ b/drivers/pinctrl/mediatek/pinctrl-paris.c
> @@ -736,10 +736,10 @@ static int mtk_pconf_group_get(struct pinctrl_dev *pctldev, unsigned group,
> unsigned long *config)
> {
> struct mtk_pinctrl *hw = pinctrl_dev_get_drvdata(pctldev);
> + struct mtk_pinctrl_group *grp = &hw->groups[group];
>
> - *config = hw->groups[group].config;
> -
> - return 0;
> + /* One pin per group only */
> + return mtk_pinconf_get(pctldev, grp->pin, config);
> }
>
> static int mtk_pconf_group_set(struct pinctrl_dev *pctldev, unsigned group,
>
next prev parent reply other threads:[~2022-01-11 13:42 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-11 11:22 [PATCH 0/7] pinctrl: mediatek: Fixes and minor improvements Chen-Yu Tsai
2022-01-11 11:22 ` [PATCH 1/7] pinctrl: pinconf-generic: Print arguments for bias-pull-* Chen-Yu Tsai
2022-01-11 13:42 ` AngeloGioacchino Del Regno
2022-01-12 7:02 ` Chen-Yu Tsai
2022-01-11 11:22 ` [PATCH 2/7] pinctrl: mediatek: paris: Fix PIN_CONFIG_BIAS_DISABLE readback Chen-Yu Tsai
2022-01-11 13:42 ` AngeloGioacchino Del Regno
2022-01-19 1:42 ` Guodong Liu
2022-01-19 5:57 ` Chen-Yu Tsai
2022-01-20 1:47 ` Guodong Liu
2022-01-11 11:22 ` [PATCH 3/7] pinctrl: mediatek: paris: Fix "argument" argument type for mtk_pinconf_get() Chen-Yu Tsai
2022-01-11 13:42 ` AngeloGioacchino Del Regno
2022-01-11 11:22 ` [PATCH 4/7] pinctrl: mediatek: paris: Fix pingroup pin config state readback Chen-Yu Tsai
2022-01-11 13:42 ` AngeloGioacchino Del Regno [this message]
2022-01-11 11:22 ` [PATCH 5/7] pinctrl: mediatek: paris: Drop extra newline in mtk_pctrl_show_one_pin() Chen-Yu Tsai
2022-01-11 13:42 ` AngeloGioacchino Del Regno
2022-01-11 11:22 ` [PATCH 6/7] pinctrl: mediatek: paris: Skip custom extra pin config dump for vrtual GPIOs Chen-Yu Tsai
2022-01-11 13:41 ` AngeloGioacchino Del Regno
2022-01-11 11:22 ` [PATCH 7/7] pinctrl: mediatek: paris: Support generic PIN_CONFIG_DRIVE_STRENGTH_UA Chen-Yu Tsai
2022-01-11 13:41 ` AngeloGioacchino Del Regno
2022-01-11 13:42 ` AngeloGioacchino Del Regno
2022-01-12 8:53 ` Chen-Yu Tsai
[not found] ` <b1d5ca006860c85edd971ea9e20880ec8ba7f842.camel@mediatek.com>
2022-01-18 2:55 ` Chen-Yu Tsai
2022-01-16 0:49 ` [PATCH 0/7] pinctrl: mediatek: Fixes and minor improvements Linus Walleij
2022-01-18 3:47 ` Chen-Yu Tsai
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