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Subject[PATCH v4 09/20] usb: phy: tegra: Use generic stub for a missing VBUS regulator
Date
Regulator core provides dummy regulator if device-tree doesn't define VBUS
regulator.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
drivers/usb/phy/phy-tegra-usb.c | 28 +++++++++-------------------
1 file changed, 9 insertions(+), 19 deletions(-)

diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c
index 268b9d9ce57e..5b9f031619c5 100644
--- a/drivers/usb/phy/phy-tegra-usb.c
+++ b/drivers/usb/phy/phy-tegra-usb.c
@@ -836,9 +836,7 @@ static void tegra_usb_phy_shutdown(struct usb_phy *u_phy)
if (!phy->is_ulpi_phy)
utmip_pad_close(phy);

- if (!IS_ERR(phy->vbus))
- regulator_disable(phy->vbus);
-
+ regulator_disable(phy->vbus);
clk_disable_unprepare(phy->pll_u);

phy->freq = NULL;
@@ -900,14 +898,11 @@ static int tegra_usb_phy_init(struct usb_phy *u_phy)
goto fail;
}

- if (!IS_ERR(phy->vbus)) {
- err = regulator_enable(phy->vbus);
- if (err) {
- dev_err(phy->u_phy.dev,
- "Failed to enable USB VBUS regulator: %d\n",
- err);
- goto fail;
- }
+ err = regulator_enable(phy->vbus);
+ if (err) {
+ dev_err(phy->u_phy.dev,
+ "Failed to enable USB VBUS regulator: %d\n", err);
+ goto fail;
}

if (phy->is_ulpi_phy)
@@ -1140,14 +1135,9 @@ static int tegra_usb_phy_probe(struct platform_device *pdev)
}

/* On some boards, the VBUS regulator doesn't need to be controlled */
- if (of_find_property(np, "vbus-supply", NULL)) {
- tegra_phy->vbus = devm_regulator_get(&pdev->dev, "vbus");
- if (IS_ERR(tegra_phy->vbus))
- return PTR_ERR(tegra_phy->vbus);
- } else {
- dev_notice(&pdev->dev, "no vbus regulator");
- tegra_phy->vbus = ERR_PTR(-ENODEV);
- }
+ tegra_phy->vbus = devm_regulator_get(&pdev->dev, "vbus");
+ if (IS_ERR(tegra_phy->vbus))
+ return PTR_ERR(tegra_phy->vbus);

tegra_phy->pll_u = devm_clk_get(&pdev->dev, "pll_u");
err = PTR_ERR_OR_ZERO(tegra_phy->pll_u);
--
2.24.0
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