Commit 13862176 authored by Chunfeng Yun's avatar Chunfeng Yun Committed by Greg Kroah-Hartman
Browse files

usb: mtu3: use force mode for dual role switch 



Force IDDIG status for all three ways of dual role switch, this
is needed when use Type-C to switch mode.

Signed-off-by: default avatarChunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1623139069-8173-13-git-send-email-chunfeng.yun@mediatek.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 6c7b9497

drivers/usb/mtu3/mtu3_dr.c

+3 −7
Original line number Diff line number Diff line
@@ -148,12 +148,14 @@ static void ssusb_mode_sw_work(struct work_struct *work) 


	switch (desired_role) {

	case USB_ROLE_HOST:

		ssusb_set_force_mode(ssusb, MTU3_DR_FORCE_HOST);

		mtu3_stop(mtu);

		switch_port_to_host(ssusb);

		ssusb_set_vbus(otg_sx, 1);

		ssusb->is_host = true;

		break;

	case USB_ROLE_DEVICE:

		ssusb_set_force_mode(ssusb, MTU3_DR_FORCE_DEVICE);

		ssusb->is_host = false;

		ssusb_set_vbus(otg_sx, 0);

		switch_port_to_device(ssusb);
@@ -225,13 +227,7 @@ void ssusb_mode_switch(struct ssusb_mtk *ssusb, int to_host) 
{

	struct otg_switch_mtk *otg_sx = &ssusb->otg_switch;



	if (to_host) {

		ssusb_set_force_mode(ssusb, MTU3_DR_FORCE_HOST);

		ssusb_set_mode(otg_sx, USB_ROLE_HOST);

	} else {

		ssusb_set_force_mode(ssusb, MTU3_DR_FORCE_DEVICE);

		ssusb_set_mode(otg_sx, USB_ROLE_DEVICE);

	}

	ssusb_set_mode(otg_sx, to_host ? USB_ROLE_HOST : USB_ROLE_DEVICE);

}



void ssusb_set_force_mode(struct ssusb_mtk *ssusb,

drivers/usb/mtu3/mtu3_host.c

+1 −5
Original line number Diff line number Diff line
@@ -213,8 +213,6 @@ int ssusb_host_disable(struct ssusb_mtk *ssusb, bool suspend) 


static void ssusb_host_setup(struct ssusb_mtk *ssusb)

{

	struct otg_switch_mtk *otg_sx = &ssusb->otg_switch;



	host_ports_num_get(ssusb);



	/*
@@ -222,8 +220,6 @@ static void ssusb_host_setup(struct ssusb_mtk *ssusb) 
	 * if support OTG, gadget driver will switch port0 to device mode

	 */

	ssusb_host_enable(ssusb);



	if (otg_sx->manual_drd_enabled)

	ssusb_set_force_mode(ssusb, MTU3_DR_FORCE_HOST);



	/* if port0 supports dual-role, works as host mode by default */