diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/mtu3/mtu3.h | 4 | ||||
| -rw-r--r-- | drivers/usb/mtu3/mtu3_host.c | 8 | ||||
| -rw-r--r-- | drivers/usb/mtu3/mtu3_plat.c | 11 |
3 files changed, 20 insertions, 3 deletions
diff --git a/drivers/usb/mtu3/mtu3.h b/drivers/usb/mtu3/mtu3.h index bc82c7f97ad6..0ae9b33b50ea 100644 --- a/drivers/usb/mtu3/mtu3.h +++ b/drivers/usb/mtu3/mtu3.h @@ -228,6 +228,9 @@ struct otg_switch_mtk { * host only, device only or dual-role mode * @u2_ports: number of usb2.0 host ports * @u3_ports: number of usb3.0 host ports + * @u2p_dis_msk: mask of disabling usb2 ports, e.g. bit0==1 to + * disable u2port0, bit1==1 to disable u2port1,... etc, + * but when use dual-role mode, can't disable u2port0 * @u3p_dis_msk: mask of disabling usb3 ports, for example, bit0==1 to * disable u3port0, bit1==1 to disable u3port1,... etc * @dbgfs_root: only used when supports manual dual-role switch via debugfs @@ -252,6 +255,7 @@ struct ssusb_mtk { bool is_host; int u2_ports; int u3_ports; + int u2p_dis_msk; int u3p_dis_msk; struct dentry *dbgfs_root; /* usb wakeup for host mode */ diff --git a/drivers/usb/mtu3/mtu3_host.c b/drivers/usb/mtu3/mtu3_host.c index 93a1a4c11e1e..6185bac5fecf 100644 --- a/drivers/usb/mtu3/mtu3_host.c +++ b/drivers/usb/mtu3/mtu3_host.c @@ -155,6 +155,9 @@ int ssusb_host_enable(struct ssusb_mtk *ssusb) /* power on and enable all u2 ports */ for (i = 0; i < num_u2p; i++) { + if ((0x1 << i) & ssusb->u2p_dis_msk) + continue; + value = mtu3_readl(ibase, SSUSB_U2_CTRL(i)); value &= ~(SSUSB_U2_PORT_PDN | SSUSB_U2_PORT_DIS); value |= SSUSB_U2_PORT_HOST_SEL; @@ -188,8 +191,11 @@ int ssusb_host_disable(struct ssusb_mtk *ssusb, bool suspend) mtu3_writel(ibase, SSUSB_U3_CTRL(i), value); } - /* power down and disable all u2 ports */ + /* power down and disable u2 ports except skipped ones */ for (i = 0; i < num_u2p; i++) { + if ((0x1 << i) & ssusb->u2p_dis_msk) + continue; + value = mtu3_readl(ibase, SSUSB_U2_CTRL(i)); value |= SSUSB_U2_PORT_PDN; value |= suspend ? 0 : SSUSB_U2_PORT_DIS; diff --git a/drivers/usb/mtu3/mtu3_plat.c b/drivers/usb/mtu3/mtu3_plat.c index c0615f6e5cce..5162b9988dde 100644 --- a/drivers/usb/mtu3/mtu3_plat.c +++ b/drivers/usb/mtu3/mtu3_plat.c @@ -225,6 +225,8 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb) /* optional property, ignore the error if it does not exist */ of_property_read_u32(node, "mediatek,u3p-dis-msk", &ssusb->u3p_dis_msk); + of_property_read_u32(node, "mediatek,u2p-dis-msk", + &ssusb->u2p_dis_msk); otg_sx->vbus = devm_regulator_get(dev, "vbus"); if (IS_ERR(otg_sx->vbus)) { @@ -241,6 +243,9 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb) of_property_read_bool(node, "enable-manual-drd"); otg_sx->role_sw_used = of_property_read_bool(node, "usb-role-switch"); + /* can't disable port0 when use dual-role mode */ + ssusb->u2p_dis_msk &= ~0x1; + if (otg_sx->role_sw_used || otg_sx->manual_drd_enabled) goto out; @@ -253,9 +258,11 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb) } out: - dev_info(dev, "dr_mode: %d, is_u3_dr: %d, u3p_dis_msk: %x, drd: %s\n", - ssusb->dr_mode, otg_sx->is_u3_drd, ssusb->u3p_dis_msk, + dev_info(dev, "dr_mode: %d, is_u3_dr: %d, drd: %s\n", + ssusb->dr_mode, otg_sx->is_u3_drd, otg_sx->manual_drd_enabled ? "manual" : "auto"); + dev_info(dev, "u2p_dis_msk: %x, u3p_dis_msk: %x\n", + ssusb->u2p_dis_msk, ssusb->u3p_dis_msk); return 0; } |