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usb: chipidea: use hrtimer for otg fsm timers

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Current otg fsm timers are using controller 1ms irq and count it, this patch
is to replace it with hrtimer solution, use one hrtimer for all otg timers.

Signed-off-by: Li Jun <jun.li@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Li Jun
2015-03-20 16:28:06 +08:00
committed by Greg Kroah-Hartman
parent 2f8a467a11
commit 3a316ec4c9
3 changed files with 193 additions and 200 deletions
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10
drivers/usb/chipidea/ci.h
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@@ -162,7 +162,10 @@ struct hw_bank {
* @role: current role
* @is_otg: if the device is otg-capable
* @fsm: otg finite state machine
* @fsm_timer: pointer to timer list of otg fsm
* @otg_fsm_hrtimer: hrtimer for otg fsm timers
* @hr_timeouts: time out list for active otg fsm timers
* @enabled_otg_timer_bits: bits of enabled otg timers
* @next_otg_timer: next nearest enabled timer to be expired
* @work: work for role changing
* @wq: workqueue thread
* @qh_pool: allocation pool for queue heads
@@ -205,7 +208,10 @@ struct ci_hdrc {
bool is_otg;
struct usb_otg otg;
struct otg_fsm fsm;
struct ci_otg_fsm_timer_list *fsm_timer;
struct hrtimer otg_fsm_hrtimer;
ktime_t hr_timeouts[NUM_OTG_FSM_TIMERS];
unsigned enabled_otg_timer_bits;
enum otg_fsm_timer next_otg_timer;
struct work_struct work;
struct workqueue_struct *wq;