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phy: sun4i-usb: add support for missing USB PHY index 

The new Allwinner H6 SoC's USB2 PHY has two holes -- USB1 (which is a
3.0 port with dedicated PHY) and USB2 (which doesn't exist at all).

Add support for this kind of missing USB PHY index.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Icenowy Zheng 2018-10-04 20:28:47 +08:00 committed by Kishon Vijay Abraham I
parent 1726ea907a
commit 2659392e5c
1 changed files with 7 additions and 0 deletions
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7
drivers/phy/allwinner/phy-sun4i-usb.c
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@ -126,6 +126,7 @@ struct sun4i_usb_phy_cfg {
bool dedicated_clocks;
bool enable_pmu_unk1;
bool phy0_dual_route;
int missing_phys;
};
struct sun4i_usb_phy_data {
@ -646,6 +647,9 @@ static struct phy *sun4i_usb_phy_xlate(struct device *dev,
if (args->args[0] >= data->cfg->num_phys)
return ERR_PTR(-ENODEV);
if (data->cfg->missing_phys & BIT(args->args[0]))
return ERR_PTR(-ENODEV);
return data->phys[args->args[0]].phy;
}
@ -741,6 +745,9 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
struct sun4i_usb_phy *phy = data->phys + i;
char name[16];
if (data->cfg->missing_phys & BIT(i))
continue;
snprintf(name, sizeof(name), "usb%d_vbus", i);
phy->vbus = devm_regulator_get_optional(dev, name);
if (IS_ERR(phy->vbus)) {