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authorIcenowy Zheng <icenowy@aosc.io>2018-10-04 20:28:47 +0800
committerKishon Vijay Abraham I <kishon@ti.com>2018-12-12 10:01:29 +0530
commit2659392e5c08dff626e6db1d739adff58a94604d (patch)
tree316af960cc6103f4c849c61d41a482fcdceb346e /drivers/phy
parent1726ea907a7f52d66560ccdb7d0c4da8a6094c14 (diff)
downloadlinux-2659392e5c08dff626e6db1d739adff58a94604d.tar.gz
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>
Diffstat (limited to 'drivers/phy')
-rw-r--r--drivers/phy/allwinner/phy-sun4i-usb.c7
1 files changed, 7 insertions, 0 deletions
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)) {