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usb: dwc2: gadget: Fix exiting from clock gating

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Added exiting from the clock gating mode on USB Reset Detect interrupt
if core in the clock gating mode.
Added new condition to check core in clock gating mode or no.

Fixes: 9b4965d77e11 ("usb: dwc2: Add exit clock gating from session request interrupt")
Fixes: 5d240efddc7f ("usb: dwc2: Add exit clock gating from wakeup interrupt")
Fixes: 16c729f90bdf ("usb: dwc2: Allow exit clock gating in urb enqueue")
Fixes: 401411bbc4e6 ("usb: dwc2: Add exit clock gating before removing driver")
CC: stable@vger.kernel.org
Signed-off-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Link: https://lore.kernel.org/r/cbcc2ccd37e89e339130797ed68ae4597db773ac.1708938774.git.Minas.Harutyunyan@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Minas Harutyunyan 2024-03-13 09:22:01 +00:00 committed by Greg Kroah-Hartman
parent b258e42688
commit 31f42da314
4 changed files with 14 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/usb/dwc2/core_intr.c
View File

@ -297,7 +297,8 @@ static void dwc2_handle_session_req_intr(struct dwc2_hsotg *hsotg)
/* Exit gadget mode clock gating. */
if (hsotg->params.power_down ==
DWC2_POWER_DOWN_PARAM_NONE && hsotg->bus_suspended)
DWC2_POWER_DOWN_PARAM_NONE && hsotg->bus_suspended &&
!hsotg->params.no_clock_gating)
dwc2_gadget_exit_clock_gating(hsotg, 0);
}
@ -408,7 +409,8 @@ static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg)
/* Exit gadget mode clock gating. */
if (hsotg->params.power_down ==
DWC2_POWER_DOWN_PARAM_NONE && hsotg->bus_suspended)
DWC2_POWER_DOWN_PARAM_NONE && hsotg->bus_suspended &&
!hsotg->params.no_clock_gating)
dwc2_gadget_exit_clock_gating(hsotg, 0);
} else {
/* Change to L0 state */
@ -425,7 +427,8 @@ static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg)
}
if (hsotg->params.power_down ==
DWC2_POWER_DOWN_PARAM_NONE && hsotg->bus_suspended)
DWC2_POWER_DOWN_PARAM_NONE && hsotg->bus_suspended &&
!hsotg->params.no_clock_gating)
dwc2_host_exit_clock_gating(hsotg, 1);
/*

6
drivers/usb/dwc2/gadget.c
View File

@ -3727,6 +3727,12 @@ irq_retry:
if (hsotg->in_ppd && hsotg->lx_state == DWC2_L2)
dwc2_exit_partial_power_down(hsotg, 0, true);
/* Exit gadget mode clock gating. */
if (hsotg->params.power_down ==
DWC2_POWER_DOWN_PARAM_NONE && hsotg->bus_suspended &&
!hsotg->params.no_clock_gating)
dwc2_gadget_exit_clock_gating(hsotg, 0);
hsotg->lx_state = DWC2_L0;
}

2
drivers/usb/dwc2/hcd.c
View File

@ -4657,7 +4657,7 @@ static int _dwc2_hcd_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
}
if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_NONE &&
hsotg->bus_suspended) {
hsotg->bus_suspended && !hsotg->params.no_clock_gating) {
if (dwc2_is_device_mode(hsotg))
dwc2_gadget_exit_clock_gating(hsotg, 0);
else

2
drivers/usb/dwc2/platform.c
View File

@ -331,7 +331,7 @@ static void dwc2_driver_remove(struct platform_device *dev)
/* Exit clock gating when driver is removed. */
if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_NONE &&
hsotg->bus_suspended) {
hsotg->bus_suspended && !hsotg->params.no_clock_gating) {
if (dwc2_is_device_mode(hsotg))
dwc2_gadget_exit_clock_gating(hsotg, 0);
else