diff options
| author | Hsin-Yi Wang <hsinyi@chromium.org> | 2021-05-27 10:55:55 +0300 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2021-05-28 22:06:38 +0300 |
| commit | 9029b9b2ae1355366530e43890fd6aa5db39e91e (patch) | |
| tree | cc272431afa31247282c963cba6ceb834ce414dd /drivers/i2c | |
| parent | c021087c43c8f9b0bb070a85d49f2e3ac450c43e (diff) | |
| download | linux-9029b9b2ae1355366530e43890fd6aa5db39e91e.tar.xz | |
i2c: mediatek: mt65xx: add optional vbus-supply
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: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Qii Wang <qii.wang@mediatek.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-mt65xx.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c index ea337ba46938..cb7fc7639396 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) |