Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-18 01:51:53 +00:00
Code Issues Packages Projects Releases Wiki Activity

usb: dwc3: gadget: Enable suspend events

Browse Source 
commit 72704f876f ("dwc3: gadget: Implement the suspend entry event
handler") introduced (nearly 5 years ago!) an interrupt handler for
U3/L1-L2 suspend events.  The problem is that these events aren't
currently enabled in the DEVTEN register so the handler is never
even invoked.  Fix this simply by enabling the corresponding bit
in dwc3_gadget_enable_irq() using the same revision check as found
in the handler.

Fixes: 72704f876f ("dwc3: gadget: Implement the suspend entry event handler")
Acked-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Jack Pham <jackp@codeaurora.org>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210428090111.3370-1-jackp@codeaurora.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jack Pham 2021-04-28 02:01:10 -07:00 committed by Greg Kroah-Hartman
parent 6c05cdbb9e
commit d1d90dd272
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/usb/dwc3/gadget.c
View File

@ -2323,6 +2323,10 @@ static void dwc3_gadget_enable_irq(struct dwc3 *dwc)
if (DWC3_VER_IS_PRIOR(DWC3, 250A))
reg |= DWC3_DEVTEN_ULSTCNGEN;
/* On 2.30a and above this bit enables U3/L2-L1 Suspend Events */
if (!DWC3_VER_IS_PRIOR(DWC3, 230A))
reg |= DWC3_DEVTEN_EOPFEN;
dwc3_writel(dwc->regs, DWC3_DEVTEN, reg);
}