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@xxxxxxx>
Reviewed-by: Chen-Yu Tsai <wens@xxxxxxxx>
---
Changes in v3:
- Added Chen-Yu's Review tag.
drivers/phy/allwinner/phy-sun4i-usb.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c
index d4dcd39b8d76..881078ff73f6 100644
--- a/drivers/phy/allwinner/phy-sun4i-usb.c
+++ b/drivers/phy/allwinner/phy-sun4i-usb.c
@@ -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)) {
--
2.18.0
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