Messages in this thread Patch in this message | | | Subject | Re: [PATCH v21 3/5] i2c: mediatek: mt65xx: add optional vbus-supply | From | Qii Wang <> | Date | Mon, 17 May 2021 16:06:53 +0800 |
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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)
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