redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

usb: otg-fsm: support multiple instances 

Move the state_changed variable into struct otg_fsm
so that we can support multiple instances.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
hifive-unleashed-5.1
Roger Quadros 2016-03-30 12:56:29 +03:00 committed by Peter Chen
parent fa59507f72
commit 4e332df634
2 changed files with 5 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/usb/common/usb-otg-fsm.c
View File

@ -61,8 +61,6 @@ static int otg_set_protocol(struct otg_fsm *fsm, int protocol)
return 0;
}
static int state_changed;
/* Called when leaving a state. Do state clean up jobs here */
static void otg_leave_state(struct otg_fsm *fsm, enum usb_otg_state old_state)
{
@ -208,7 +206,6 @@ static void otg_start_hnp_polling(struct otg_fsm *fsm)
/* Called when entering a state */
static int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
{
state_changed = 1;
if (fsm->otg->state == new_state)
return 0;
VDBG("Set state: %s\n", usb_otg_state_string(new_state));
@ -324,6 +321,7 @@ static int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
}
fsm->otg->state = new_state;
fsm->state_changed = 1;
return 0;
}
@ -335,7 +333,7 @@ int otg_statemachine(struct otg_fsm *fsm)
mutex_lock(&fsm->lock);
state = fsm->otg->state;
state_changed = 0;
fsm->state_changed = 0;
/* State machine state change judgement */
switch (state) {
@ -448,7 +446,7 @@ int otg_statemachine(struct otg_fsm *fsm)
}
mutex_unlock(&fsm->lock);
VDBG("quit statemachine, changed = %d\n", state_changed);
return state_changed;
VDBG("quit statemachine, changed = %d\n", fsm->state_changed);
return fsm->state_changed;
}
EXPORT_SYMBOL_GPL(otg_statemachine);

1
include/linux/usb/otg-fsm.h
View File

@ -210,6 +210,7 @@ struct otg_fsm {
struct mutex lock;
u8 *host_req_flag;
struct delayed_work hnp_polling_work;
bool state_changed;
};
struct otg_fsm_ops {