Re: [PATCH v2 11/12] usb: dwc2: Add clock gating exiting flow by system resume

Sergei Shtylyov <sergei.shtylyov@xxxxxxxxx> · Tue, 13 Apr 2021 12:30:49 +0300

On 13.04.2021 10:37, Artur Petrosyan wrote:

If not hibernation nor partial power down are supported,

   s/not/neither/?

port resume is done using the clock gating programming flow.

Adds a new flow of exiting clock gating when PC is
resumed.

Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@xxxxxxxxxxxx>
---
  Changes in v2:
  - None

  drivers/usb/dwc2/hcd.c | 22 ++++++++++++++++++++++
  1 file changed, 22 insertions(+)

diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index 09dcd37b9ef8..04a1b53d65af 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -4445,6 +4445,28 @@ static int _dwc2_hcd_resume(struct usb_hcd *hcd)
  		break;
  	case DWC2_POWER_DOWN_PARAM_HIBERNATION:
  	case DWC2_POWER_DOWN_PARAM_NONE:
+		/*
+		 * If not hibernation nor partial power down are supported,

   s/not/neither/?

[...]

MBR, Sergei






