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phy: tegra: xusb: Add vbus override support on Tegra186 

Tegra XUSB device control driver needs to control vbus override
during its operations, add API for the support.

Signed-off-by: Nagarjuna Kristam <nkristam@nvidia.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Nagarjuna Kristam 2019-10-18 15:08:09 +05:30 committed by Kishon Vijay Abraham I
parent 90767cdfea
commit a8a24429dd
1 changed files with 23 additions and 0 deletions
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23
drivers/phy/tegra/xusb-tegra186.c
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@ -857,9 +857,32 @@ static void tegra186_xusb_padctl_remove(struct tegra_xusb_padctl *padctl)
{
}
static int tegra186_xusb_padctl_vbus_override(struct tegra_xusb_padctl *padctl,
bool status)
{
u32 value;
dev_dbg(padctl->dev, "%s vbus override\n", status ? "set" : "clear");
value = padctl_readl(padctl, USB2_VBUS_ID);
if (status) {
value |= VBUS_OVERRIDE;
value &= ~ID_OVERRIDE(~0);
value |= ID_OVERRIDE_FLOATING;
} else {
value &= ~VBUS_OVERRIDE;
}
padctl_writel(padctl, value, USB2_VBUS_ID);
return 0;
}
static const struct tegra_xusb_padctl_ops tegra186_xusb_padctl_ops = {
.probe = tegra186_xusb_padctl_probe,
.remove = tegra186_xusb_padctl_remove,
.vbus_override = tegra186_xusb_padctl_vbus_override,
};
static const char * const tegra186_xusb_padctl_supply_names[] = {