Commit 26910f97 authored by Minda Chen's avatar Minda Chen Committed by Greg Kroah-Hartman
Browse files

usb: cdns3: Add PHY mode switch to usb2 PHY 



cdns3 just set PHY mode switch for USB3.0 PHY.
If USB 2.0 PHY contains PHY mode switch setting,
USB 2.0 PHY mode function can't be called.
So add PHY mode switch function for USB 2.0 PHY.

Signed-off-by: default avatarMinda Chen <minda.chen@starfivetech.com>
Reviewed-by: default avatarRoger Quadros <rogerq@kernel.org>
Link: https://lore.kernel.org/r/20230721095923.20445-1-minda.chen@starfivetech.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 3bd442e4

drivers/usb/cdns3/drd.c

+4 −0
Original line number Original line Diff line number Diff line
@@ -196,6 +196,7 @@ int cdns_drd_host_on(struct cdns *cdns) 
	if (ret)

	if (ret)

		dev_err(cdns->dev, "timeout waiting for xhci_ready\n");

		dev_err(cdns->dev, "timeout waiting for xhci_ready\n");





	phy_set_mode(cdns->usb2_phy, PHY_MODE_USB_HOST);

	phy_set_mode(cdns->usb3_phy, PHY_MODE_USB_HOST);

	phy_set_mode(cdns->usb3_phy, PHY_MODE_USB_HOST);

	return ret;

	return ret;

}

}
@@ -216,6 +217,7 @@ void cdns_drd_host_off(struct cdns *cdns) 
	readl_poll_timeout_atomic(&cdns->otg_regs->state, val,

	readl_poll_timeout_atomic(&cdns->otg_regs->state, val,

				  !(val & OTGSTATE_HOST_STATE_MASK),

				  !(val & OTGSTATE_HOST_STATE_MASK),

				  1, 2000000);

				  1, 2000000);

	phy_set_mode(cdns->usb2_phy, PHY_MODE_INVALID);

	phy_set_mode(cdns->usb3_phy, PHY_MODE_INVALID);

	phy_set_mode(cdns->usb3_phy, PHY_MODE_INVALID);

}

}
@@ -248,6 +250,7 @@ int cdns_drd_gadget_on(struct cdns *cdns) 
		return ret;

		return ret;

	}

	}





	phy_set_mode(cdns->usb2_phy, PHY_MODE_USB_DEVICE);

	phy_set_mode(cdns->usb3_phy, PHY_MODE_USB_DEVICE);

	phy_set_mode(cdns->usb3_phy, PHY_MODE_USB_DEVICE);

	return 0;

	return 0;

}

}
@@ -273,6 +276,7 @@ void cdns_drd_gadget_off(struct cdns *cdns) 
	readl_poll_timeout_atomic(&cdns->otg_regs->state, val,

	readl_poll_timeout_atomic(&cdns->otg_regs->state, val,

				  !(val & OTGSTATE_DEV_STATE_MASK),

				  !(val & OTGSTATE_DEV_STATE_MASK),

				  1, 2000000);

				  1, 2000000);

	phy_set_mode(cdns->usb2_phy, PHY_MODE_INVALID);

	phy_set_mode(cdns->usb3_phy, PHY_MODE_INVALID);

	phy_set_mode(cdns->usb3_phy, PHY_MODE_INVALID);

}

}

EXPORT_SYMBOL_GPL(cdns_drd_gadget_off);

EXPORT_SYMBOL_GPL(cdns_drd_gadget_off);