diff options
| author | Artur Petrosyan <Arthur.Petrosyan@synopsys.com> | 2021-04-08 13:45:01 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-09 15:16:38 +0200 |
| commit | 139fae7a08381c21026b05732e63c79018bb6c60 (patch) | |
| tree | cca884a4d1c464188d896ed3588ce28682bbcd41 /drivers/usb | |
| parent | b77b0d0021ec8f6bbcce659c5e6500e2dbc74e3c (diff) | |
usb: dwc2: Update port suspend/resume function definitions.
Earlier "dwc2_port_suspend()" and "dwc2_port_resume()" functions
were implemented without proper description and host or device mode
difference.
- Added "dwc2_port_suspend" and "dwc2_port_resume" functions to
"core.h" header file.
- Updated function description in documentation.
Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com>
Link: https://lore.kernel.org/r/20210408094502.61D18A0232@mailhost.synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/dwc2/core.h | 4 | ||||
| -rw-r--r-- | drivers/usb/dwc2/hcd.c | 25 |
2 files changed, 23 insertions, 6 deletions
diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h index 39037709a2ad..b7d99cf9e84c 100644 --- a/drivers/usb/dwc2/core.h +++ b/drivers/usb/dwc2/core.h @@ -1470,6 +1470,8 @@ void dwc2_hcd_connect(struct dwc2_hsotg *hsotg); void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg, bool force); void dwc2_hcd_start(struct dwc2_hsotg *hsotg); int dwc2_core_init(struct dwc2_hsotg *hsotg, bool initial_setup); +void dwc2_port_suspend(struct dwc2_hsotg *hsotg, u16 windex); +void dwc2_port_resume(struct dwc2_hsotg *hsotg); int dwc2_backup_host_registers(struct dwc2_hsotg *hsotg); int dwc2_restore_host_registers(struct dwc2_hsotg *hsotg); int dwc2_host_enter_hibernation(struct dwc2_hsotg *hsotg); @@ -1493,6 +1495,8 @@ static inline void dwc2_hcd_start(struct dwc2_hsotg *hsotg) {} static inline void dwc2_hcd_remove(struct dwc2_hsotg *hsotg) {} static inline int dwc2_core_init(struct dwc2_hsotg *hsotg, bool initial_setup) { return 0; } +static inline void dwc2_port_suspend(struct dwc2_hsotg *hsotg, u16 windex) {} +static inline void dwc2_port_resume(struct dwc2_hsotg *hsotg) {} static inline int dwc2_hcd_init(struct dwc2_hsotg *hsotg) { return 0; } static inline int dwc2_backup_host_registers(struct dwc2_hsotg *hsotg) diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index dd0362e07444..f4247a66c2b2 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -56,8 +56,6 @@ #include "core.h" #include "hcd.h" -static void dwc2_port_resume(struct dwc2_hsotg *hsotg); - /* * ========================================================================= * Host Core Layer Functions @@ -3277,8 +3275,16 @@ static int dwc2_host_is_b_hnp_enabled(struct dwc2_hsotg *hsotg) return hcd->self.b_hnp_enable; } -/* Must NOT be called with interrupt disabled or spinlock held */ -static void dwc2_port_suspend(struct dwc2_hsotg *hsotg, u16 windex) +/** + * dwc2_port_suspend() - Put controller in suspend mode for host. + * + * @hsotg: Programming view of the DWC_otg controller + * @windex: The control request wIndex field + * + * This function is for entering Host mode suspend. + * Must NOT be called with interrupt disabled or spinlock held. + */ +void dwc2_port_suspend(struct dwc2_hsotg *hsotg, u16 windex) { unsigned long flags; u32 hprt0; @@ -3328,8 +3334,15 @@ static void dwc2_port_suspend(struct dwc2_hsotg *hsotg, u16 windex) } } -/* Must NOT be called with interrupt disabled or spinlock held */ -static void dwc2_port_resume(struct dwc2_hsotg *hsotg) +/** + * dwc2_port_resume() - Exit controller from suspend mode for host. + * + * @hsotg: Programming view of the DWC_otg controller + * + * This function is for exiting Host mode suspend. + * Must NOT be called with interrupt disabled or spinlock held. + */ +void dwc2_port_resume(struct dwc2_hsotg *hsotg) { unsigned long flags; u32 hprt0; |