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From: Qii Wang <qii.wang@mediatek.com>
To: Hsin-Yi Wang <hsinyi@chromium.org>
Cc: Wolfram Sang <wsa@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	"Bartosz Golaszewski" <bgolaszewski@baylibre.com>,
	<linux-i2c@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	Mark Brown <broonie@kernel.org>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	"Bibby Hsieh" <bibby.hsieh@mediatek.com>,
	Arnd Bergmann <arnd@arndb.de>
Subject: Re: [PATCH v21 3/5] i2c: mediatek: mt65xx: add optional vbus-supply
Date: Mon, 17 May 2021 16:06:53 +0800	[thread overview]
Message-ID: <1621238813.24305.5.camel@mhfsdcap03> (raw)
In-Reply-To: <20210507131406.2224177-4-hsinyi@chromium.org>

On Fri, 2021-05-07 at 21:14 +0800, Hsin-Yi Wang wrote:
> Add vbus-supply which provides power to SCL/SDA. Pass this regulator
> into core so it can be turned on/off for low power mode support.
> 
> Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>

Reviewed-by: Qii Wang <qii.wang@mediatek.com>

> ---
>  drivers/i2c/busses/i2c-mt65xx.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c
> index 5ddfa4e56ee2..22d1d14b5de5 100644
> --- a/drivers/i2c/busses/i2c-mt65xx.c
> +++ b/drivers/i2c/busses/i2c-mt65xx.c
> @@ -1220,6 +1220,13 @@ static int mtk_i2c_probe(struct platform_device *pdev)
>  	i2c->adap.quirks = i2c->dev_comp->quirks;
>  	i2c->adap.timeout = 2 * HZ;
>  	i2c->adap.retries = 1;
> +	i2c->adap.bus_regulator = devm_regulator_get_optional(&pdev->dev, "vbus");
> +	if (IS_ERR(i2c->adap.bus_regulator)) {
> +		if (PTR_ERR(i2c->adap.bus_regulator) == -ENODEV)
> +			i2c->adap.bus_regulator = NULL;
> +		else
> +			return PTR_ERR(i2c->adap.bus_regulator);
> +	}
>  
>  	ret = mtk_i2c_parse_dt(pdev->dev.of_node, i2c);
>  	if (ret)


WARNING: multiple messages have this Message-ID (diff)
From: Qii Wang <qii.wang@mediatek.com>
To: Hsin-Yi Wang <hsinyi@chromium.org>
Cc: Wolfram Sang <wsa@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	 Rob Herring <robh+dt@kernel.org>,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	<linux-i2c@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	Mark Brown <broonie@kernel.org>,
	 Marek Szyprowski <m.szyprowski@samsung.com>,
	Bibby Hsieh <bibby.hsieh@mediatek.com>,
	Arnd Bergmann <arnd@arndb.de>
Subject: Re: [PATCH v21 3/5] i2c: mediatek: mt65xx: add optional vbus-supply
Date: Mon, 17 May 2021 16:06:53 +0800	[thread overview]
Message-ID: <1621238813.24305.5.camel@mhfsdcap03> (raw)
In-Reply-To: <20210507131406.2224177-4-hsinyi@chromium.org>

On Fri, 2021-05-07 at 21:14 +0800, Hsin-Yi Wang wrote:
> Add vbus-supply which provides power to SCL/SDA. Pass this regulator
> into core so it can be turned on/off for low power mode support.
> 
> Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>

Reviewed-by: Qii Wang <qii.wang@mediatek.com>

> ---
>  drivers/i2c/busses/i2c-mt65xx.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c
> index 5ddfa4e56ee2..22d1d14b5de5 100644
> --- a/drivers/i2c/busses/i2c-mt65xx.c
> +++ b/drivers/i2c/busses/i2c-mt65xx.c
> @@ -1220,6 +1220,13 @@ static int mtk_i2c_probe(struct platform_device *pdev)
>  	i2c->adap.quirks = i2c->dev_comp->quirks;
>  	i2c->adap.timeout = 2 * HZ;
>  	i2c->adap.retries = 1;
> +	i2c->adap.bus_regulator = devm_regulator_get_optional(&pdev->dev, "vbus");
> +	if (IS_ERR(i2c->adap.bus_regulator)) {
> +		if (PTR_ERR(i2c->adap.bus_regulator) == -ENODEV)
> +			i2c->adap.bus_regulator = NULL;
> +		else
> +			return PTR_ERR(i2c->adap.bus_regulator);
> +	}
>  
>  	ret = mtk_i2c_parse_dt(pdev->dev.of_node, i2c);
>  	if (ret)

_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek

WARNING: multiple messages have this Message-ID (diff)
From: Qii Wang <qii.wang@mediatek.com>
To: Hsin-Yi Wang <hsinyi@chromium.org>
Cc: Wolfram Sang <wsa@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	 Rob Herring <robh+dt@kernel.org>,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	<linux-i2c@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	Mark Brown <broonie@kernel.org>,
	 Marek Szyprowski <m.szyprowski@samsung.com>,
	Bibby Hsieh <bibby.hsieh@mediatek.com>,
	Arnd Bergmann <arnd@arndb.de>
Subject: Re: [PATCH v21 3/5] i2c: mediatek: mt65xx: add optional vbus-supply
Date: Mon, 17 May 2021 16:06:53 +0800	[thread overview]
Message-ID: <1621238813.24305.5.camel@mhfsdcap03> (raw)
In-Reply-To: <20210507131406.2224177-4-hsinyi@chromium.org>

On Fri, 2021-05-07 at 21:14 +0800, Hsin-Yi Wang wrote:
> Add vbus-supply which provides power to SCL/SDA. Pass this regulator
> into core so it can be turned on/off for low power mode support.
> 
> Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>

Reviewed-by: Qii Wang <qii.wang@mediatek.com>

> ---
>  drivers/i2c/busses/i2c-mt65xx.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c
> index 5ddfa4e56ee2..22d1d14b5de5 100644
> --- a/drivers/i2c/busses/i2c-mt65xx.c
> +++ b/drivers/i2c/busses/i2c-mt65xx.c
> @@ -1220,6 +1220,13 @@ static int mtk_i2c_probe(struct platform_device *pdev)
>  	i2c->adap.quirks = i2c->dev_comp->quirks;
>  	i2c->adap.timeout = 2 * HZ;
>  	i2c->adap.retries = 1;
> +	i2c->adap.bus_regulator = devm_regulator_get_optional(&pdev->dev, "vbus");
> +	if (IS_ERR(i2c->adap.bus_regulator)) {
> +		if (PTR_ERR(i2c->adap.bus_regulator) == -ENODEV)
> +			i2c->adap.bus_regulator = NULL;
> +		else
> +			return PTR_ERR(i2c->adap.bus_regulator);
> +	}
>  
>  	ret = mtk_i2c_parse_dt(pdev->dev.of_node, i2c);
>  	if (ret)

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2021-05-17  8:12 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-07 13:14 [PATCH v21 0/5] add power control in i2c Hsin-Yi Wang
2021-05-07 13:14 ` Hsin-Yi Wang
2021-05-07 13:14 ` Hsin-Yi Wang
2021-05-07 13:14 ` [PATCH v21 1/5] i2c: core: support bus regulator controlling in adapter Hsin-Yi Wang
2021-05-07 13:14   ` Hsin-Yi Wang
2021-05-07 13:14   ` Hsin-Yi Wang
2021-05-12 15:45   ` Matthias Brugger
2021-05-12 15:45     ` Matthias Brugger
2021-05-12 15:45     ` Matthias Brugger
2021-05-07 13:14 ` [PATCH v21 2/5] dt-binding: i2c: mt65xx: add vbus-supply property Hsin-Yi Wang
2021-05-07 13:14   ` Hsin-Yi Wang
2021-05-07 13:14   ` Hsin-Yi Wang
2021-05-07 13:14 ` [PATCH v21 3/5] i2c: mediatek: mt65xx: add optional vbus-supply Hsin-Yi Wang
2021-05-07 13:14   ` Hsin-Yi Wang
2021-05-07 13:14   ` Hsin-Yi Wang
2021-05-12 15:46   ` Matthias Brugger
2021-05-12 15:46     ` Matthias Brugger
2021-05-12 15:46     ` Matthias Brugger
2021-05-17  8:06   ` Qii Wang [this message]
2021-05-17  8:06     ` Qii Wang
2021-05-17  8:06     ` Qii Wang
2021-05-07 13:14 ` [PATCH v21 4/5] misc: eeprom: at24: check suspend status before disable regulator Hsin-Yi Wang
2021-05-07 13:14   ` Hsin-Yi Wang
2021-05-07 13:14   ` Hsin-Yi Wang
2021-05-07 13:14 ` [PATCH v21 5/5] arm64: dts: mt8183: add supply name for eeprom Hsin-Yi Wang
2021-05-07 13:14   ` Hsin-Yi Wang
2021-05-07 13:14   ` Hsin-Yi Wang
2021-05-20 10:56 ` [PATCH v21 0/5] add power control in i2c Hsin-Yi Wang
2021-05-20 10:56   ` Hsin-Yi Wang
2021-05-20 10:56   ` Hsin-Yi Wang

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