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usb: dwc2: Rename hibernation to partial_power_down 

No-op change, only rename.

This code was misnamed originally. It was only responsible for partial
power down and not for hibernation.

Rename core_params->hibernation to core_params->power_down,
dwc2_set_param_hibernation() to dwc2_set_param_power_down().

Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Vardan Mikayelyan 2018-02-16 14:06:36 +04:00 коммит произвёл Felipe Balbi
Родитель 7455f8b7f0
Коммит 41ba9b9b95
7 изменённых файлов: 38 добавлений и 38 удалений
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14
drivers/usb/dwc2/core.c
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@ -128,17 +128,17 @@ static int dwc2_restore_global_registers(struct dwc2_hsotg *hsotg)
}
/**
* dwc2_exit_hibernation() - Exit controller from Partial Power Down.
* dwc2_exit_partial_power_down() - Exit controller from Partial Power Down.
*
* @hsotg: Programming view of the DWC_otg controller
* @restore: Controller registers need to be restored
*/
int dwc2_exit_hibernation(struct dwc2_hsotg *hsotg, bool restore)
int dwc2_exit_partial_power_down(struct dwc2_hsotg *hsotg, bool restore)
{
u32 pcgcctl;
int ret = 0;
if (!hsotg->params.hibernation)
if (!hsotg->params.power_down)
return -ENOTSUPP;
pcgcctl = dwc2_readl(hsotg->regs + PCGCTL);
@ -182,16 +182,16 @@ int dwc2_exit_hibernation(struct dwc2_hsotg *hsotg, bool restore)
}
/**
* dwc2_enter_hibernation() - Put controller in Partial Power Down.
* dwc2_enter_partial_power_down() - Put controller in Partial Power Down.
*
* @hsotg: Programming view of the DWC_otg controller
*/
int dwc2_enter_hibernation(struct dwc2_hsotg *hsotg)
int dwc2_enter_partial_power_down(struct dwc2_hsotg *hsotg)
{
u32 pcgcctl;
int ret = 0;
if (!hsotg->params.hibernation)
if (!hsotg->params.power_down)
return -ENOTSUPP;
/* Backup all registers */
@ -220,7 +220,7 @@ int dwc2_enter_hibernation(struct dwc2_hsotg *hsotg)
/*
* Clear any pending interrupts since dwc2 will not be able to
* clear them after entering hibernation.
* clear them after entering partial_power_down.
*/
dwc2_writel(0xffffffff, hsotg->regs + GINTSTS);

12
drivers/usb/dwc2/core.h
Просмотреть файл

@ -421,9 +421,9 @@ enum dwc2_ep0_state {
* case.
* 0 - No (default)
* 1 - Yes
* @hibernation: Specifies whether the controller support hibernation.
* If hibernation is enabled, the controller will enter
* hibernation in both peripheral and host mode when
* @power_down: Specifies whether the controller support power_down.
* If power_down is enabled, the controller will enter
* power_down in both peripheral and host mode when
* needed.
* 0 - No (default)
* 1 - Yes
@ -498,7 +498,7 @@ struct dwc2_core_params {
bool reload_ctl;
bool uframe_sched;
bool external_id_pin_ctl;
bool hibernation;
bool power_down;
bool lpm;
bool lpm_clock_gating;
bool besl;
@ -1117,8 +1117,8 @@ static inline bool dwc2_is_hs_iot(struct dwc2_hsotg *hsotg)
*/
int dwc2_core_reset(struct dwc2_hsotg *hsotg, bool skip_wait);
int dwc2_core_reset_and_force_dr_mode(struct dwc2_hsotg *hsotg);
int dwc2_enter_hibernation(struct dwc2_hsotg *hsotg);
int dwc2_exit_hibernation(struct dwc2_hsotg *hsotg, bool restore);
int dwc2_enter_partial_power_down(struct dwc2_hsotg *hsotg);
int dwc2_exit_partial_power_down(struct dwc2_hsotg *hsotg, bool restore);
bool dwc2_force_mode_if_needed(struct dwc2_hsotg *hsotg, bool host);
void dwc2_clear_force_mode(struct dwc2_hsotg *hsotg);

14
drivers/usb/dwc2/core_intr.c
Просмотреть файл

@ -321,10 +321,10 @@ static void dwc2_handle_session_req_intr(struct dwc2_hsotg *hsotg)
if (dwc2_is_device_mode(hsotg)) {
if (hsotg->lx_state == DWC2_L2) {
ret = dwc2_exit_hibernation(hsotg, true);
ret = dwc2_exit_partial_power_down(hsotg, true);
if (ret && (ret != -ENOTSUPP))
dev_err(hsotg->dev,
"exit hibernation failed\n");
"exit power_down failed\n");
}
/*
@ -417,16 +417,16 @@ static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg)
/* Clear Remote Wakeup Signaling */
dctl &= ~DCTL_RMTWKUPSIG;
dwc2_writel(dctl, hsotg->regs + DCTL);
ret = dwc2_exit_hibernation(hsotg, true);
ret = dwc2_exit_partial_power_down(hsotg, true);
if (ret && (ret != -ENOTSUPP))
dev_err(hsotg->dev, "exit hibernation failed\n");
dev_err(hsotg->dev, "exit power_down failed\n");
call_gadget(hsotg, resume);
}
/* Change to L0 state */
hsotg->lx_state = DWC2_L0;
} else {
if (hsotg->params.hibernation)
if (hsotg->params.power_down)
return;
if (hsotg->lx_state != DWC2_L1) {
@ -497,11 +497,11 @@ static void dwc2_handle_usb_suspend_intr(struct dwc2_hsotg *hsotg)
return;
}
ret = dwc2_enter_hibernation(hsotg);
ret = dwc2_enter_partial_power_down(hsotg);
if (ret) {
if (ret != -ENOTSUPP)
dev_err(hsotg->dev,
"enter hibernation failed\n");
"enter power_down failed\n");
goto skip_power_saving;
}

2
drivers/usb/dwc2/debugfs.c
Просмотреть файл

@ -718,7 +718,7 @@ static int params_show(struct seq_file *seq, void *v)
print_param_hex(seq, p, ahbcfg);
print_param(seq, p, uframe_sched);
print_param(seq, p, external_id_pin_ctl);
print_param(seq, p, hibernation);
print_param(seq, p, power_down);
print_param(seq, p, lpm);
print_param(seq, p, lpm_clock_gating);
print_param(seq, p, besl);

6
drivers/usb/dwc2/gadget.c
Просмотреть файл

@ -3527,7 +3527,7 @@ irq_retry:
/* This event must be used only if controller is suspended */
if (hsotg->lx_state == DWC2_L2) {
dwc2_exit_hibernation(hsotg, true);
dwc2_exit_partial_power_down(hsotg, true);
hsotg->lx_state = DWC2_L0;
}
}
@ -4374,11 +4374,11 @@ static int dwc2_hsotg_vbus_session(struct usb_gadget *gadget, int is_active)
spin_lock_irqsave(&hsotg->lock, flags);
/*
* If controller is hibernated, it must exit from hibernation
* If controller is hibernated, it must exit from power_down
* before being initialized / de-initialized
*/
if (hsotg->lx_state == DWC2_L2)
dwc2_exit_hibernation(hsotg, false);
dwc2_exit_partial_power_down(hsotg, false);
if (is_active) {
hsotg->op_state = OTG_STATE_B_PERIPHERAL;

26
drivers/usb/dwc2/hcd.c
Просмотреть файл

@ -3397,10 +3397,10 @@ static void dwc2_port_suspend(struct dwc2_hsotg *hsotg, u16 windex)
hsotg->bus_suspended = true;
/*
* If hibernation is supported, Phy clock will be suspended
* If power_down is supported, Phy clock will be suspended
* after registers are backuped.
*/
if (!hsotg->params.hibernation) {
if (!hsotg->params.power_down) {
/* Suspend the Phy Clock */
pcgctl = dwc2_readl(hsotg->regs + PCGCTL);
pcgctl |= PCGCTL_STOPPCLK;
@ -3432,10 +3432,10 @@ static void dwc2_port_resume(struct dwc2_hsotg *hsotg)
spin_lock_irqsave(&hsotg->lock, flags);
/*
* If hibernation is supported, Phy clock is already resumed
* If power_down is supported, Phy clock is already resumed
* after registers restore.
*/
if (!hsotg->params.hibernation) {
if (!hsotg->params.power_down) {
pcgctl = dwc2_readl(hsotg->regs + PCGCTL);
pcgctl &= ~PCGCTL_STOPPCLK;
dwc2_writel(pcgctl, hsotg->regs + PCGCTL);
@ -4364,7 +4364,7 @@ static int _dwc2_hcd_suspend(struct usb_hcd *hcd)
if (hsotg->op_state == OTG_STATE_B_PERIPHERAL)
goto unlock;
if (!hsotg->params.hibernation)
if (!hsotg->params.power_down)
goto skip_power_saving;
/*
@ -4378,12 +4378,12 @@ static int _dwc2_hcd_suspend(struct usb_hcd *hcd)
dwc2_writel(hprt0, hsotg->regs + HPRT0);
}
/* Enter hibernation */
ret = dwc2_enter_hibernation(hsotg);
/* Enter partial_power_down */
ret = dwc2_enter_partial_power_down(hsotg);
if (ret) {
if (ret != -ENOTSUPP)
dev_err(hsotg->dev,
"enter hibernation failed\n");
"enter partial_power_down failed\n");
goto skip_power_saving;
}
@ -4394,7 +4394,7 @@ static int _dwc2_hcd_suspend(struct usb_hcd *hcd)
spin_lock_irqsave(&hsotg->lock, flags);
}
/* After entering hibernation, hardware is no more accessible */
/* After entering partial_power_down, hardware is no more accessible */
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
skip_power_saving:
@ -4419,7 +4419,7 @@ static int _dwc2_hcd_resume(struct usb_hcd *hcd)
if (hsotg->lx_state != DWC2_L2)
goto unlock;
if (!hsotg->params.hibernation) {
if (!hsotg->params.power_down) {
hsotg->lx_state = DWC2_L0;
goto unlock;
}
@ -4441,10 +4441,10 @@ static int _dwc2_hcd_resume(struct usb_hcd *hcd)
spin_lock_irqsave(&hsotg->lock, flags);
}
/* Exit hibernation */
ret = dwc2_exit_hibernation(hsotg, true);
/* Exit partial_power_down */
ret = dwc2_exit_partial_power_down(hsotg, true);
if (ret && (ret != -ENOTSUPP))
dev_err(hsotg->dev, "exit hibernation failed\n");
dev_err(hsotg->dev, "exit partial_power_down failed\n");
hsotg->lx_state = DWC2_L0;

2
drivers/usb/dwc2/params.c
Просмотреть файл

@ -278,7 +278,7 @@ static void dwc2_set_default_params(struct dwc2_hsotg *hsotg)
p->reload_ctl = (hw->snpsid >= DWC2_CORE_REV_2_92a);
p->uframe_sched = true;
p->external_id_pin_ctl = false;
p->hibernation = false;
p->power_down = false;
p->lpm = true;
p->lpm_clock_gating = true;
p->besl = true;