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From: Artur Petrosyan <Arthur.Petrosyan@synopsys.com>
To: Felipe Balbi <balbi@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: John Youn <John.Youn@synopsys.com>,
	Artur Petrosyan <Arthur.Petrosyan@synopsys.com>
Subject: [PATCH 01/15] usb: dwc2: Update exit hibernation when port reset is asserted
Date: Thu, 15 Apr 2021 09:39:26 +0400	[thread overview]
Message-ID: <1d0e78a2c7da8706a065420302c8dacf2793738a.1618464534.git.Arthur.Petrosyan@synopsys.com> (raw)
In-Reply-To: <cover.1618464534.git.Arthur.Petrosyan@synopsys.com>

No need to check for "DWC2_POWER_DOWN_PARAM_HIBERNATION" param
as "hsotg->hibernated" flag is already enough for exiting from
hibernation mode.

- Removes checking of "DWC2_POWER_DOWN_PARAM_HIBERNATION" param.

- For code readability Hibernation exit code moved after
debug message print.

- Added "dwc2_exit_hibernation()" function error checking.

Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com>
---
 drivers/usb/dwc2/hcd.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index 04a1b53d65af..cda3f931195d 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -3668,9 +3668,17 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
 			break;
 
 		case USB_PORT_FEAT_RESET:
-			if (hsotg->params.power_down == DWC2_POWER_DOWN_PARAM_HIBERNATION &&
-			    hsotg->hibernated)
-				dwc2_exit_hibernation(hsotg, 0, 1, 1);
+			dev_dbg(hsotg->dev,
+				"SetPortFeature - USB_PORT_FEAT_RESET\n");
+
+			hprt0 = dwc2_read_hprt0(hsotg);
+
+			if (hsotg->hibernated) {
+				retval = dwc2_exit_hibernation(hsotg, 0, 1, 1);
+				if (retval)
+					dev_err(hsotg->dev,
+						"exit hibernation failed\n");
+			}
 
 			if (hsotg->in_ppd) {
 				retval = dwc2_exit_partial_power_down(hsotg, 1,
@@ -3684,9 +3692,6 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
 			    DWC2_POWER_DOWN_PARAM_NONE && hsotg->bus_suspended)
 				dwc2_host_exit_clock_gating(hsotg, 0);
 
-			hprt0 = dwc2_read_hprt0(hsotg);
-			dev_dbg(hsotg->dev,
-				"SetPortFeature - USB_PORT_FEAT_RESET\n");
 			pcgctl = dwc2_readl(hsotg, PCGCTL);
 			pcgctl &= ~(PCGCTL_ENBL_SLEEP_GATING | PCGCTL_STOPPCLK);
 			dwc2_writel(hsotg, pcgctl, PCGCTL);
-- 
2.25.1


       reply	other threads:[~2021-04-15  5:39 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <cover.1618464534.git.Arthur.Petrosyan@synopsys.com>
2021-04-15  5:39 ` Artur Petrosyan [this message]
2021-04-15  5:39 ` [PATCH 02/15] usb: dwc2: Reset DEVADDR after exiting gadget hibernation Artur Petrosyan
2021-04-15  5:39 ` [PATCH 03/15] usb: dwc2: Fix host mode hibernation exit with remote wakeup flow Artur Petrosyan
2021-04-15  5:39 ` [PATCH 04/15] usb: dwc2: Fix hibernation between host and device modes Artur Petrosyan
2021-04-15  5:40 ` [PATCH 05/15] usb: dwc2: Allow exiting hibernation from gpwrdn rst detect Artur Petrosyan
2021-04-15  5:40 ` [PATCH 06/15] usb: dwc2: Clear fifo_map when resetting core Artur Petrosyan
2021-04-15  5:40 ` [PATCH 07/15] usb: dwc2: Clear GINTSTS_RESTOREDONE bit after restore is generated Artur Petrosyan
2021-04-15  5:40 ` [PATCH 08/15] usb: dwc2: Move enter hibernation to dwc2_port_suspend() function Artur Petrosyan
2021-04-15  5:40 ` [PATCH 09/15] usb: dwc2: Move exit hibernation to dwc2_port_resume() function Artur Petrosyan
2021-04-15  5:40 ` [PATCH 10/15] usb: dwc2: Allow exit hibernation in urb enqueue Artur Petrosyan
2021-04-15  9:12   ` Sergei Shtylyov
2021-04-16  5:43     ` Artur Petrosyan
2021-04-16  7:05       ` Artur Petrosyan
2021-04-15  5:40 ` [PATCH 11/15] usb: dwc2: Add hibernation entering flow by system suspend Artur Petrosyan
2021-04-15  5:40 ` [PATCH 12/15] usb: dwc2: Add hibernation exiting flow by system resume Artur Petrosyan
2021-04-15  5:41 ` [PATCH 13/15] usb: dwc2: Add exit hibernation mode before removing drive Artur Petrosyan
2021-04-15  9:24   ` Sergei Shtylyov
2021-04-16  5:46     ` Artur Petrosyan
2021-04-15  9:50   ` kernel test robot
2021-04-15  9:50     ` kernel test robot
2021-04-15 13:40   ` [kbuild] " Dan Carpenter
2021-04-15 13:40     ` Dan Carpenter
2021-04-15 13:40     ` Dan Carpenter
2021-04-15  5:41 ` [PATCH 14/15] usb: dwc2: Update dwc2_handle_usb_suspend_intr function Artur Petrosyan
2021-04-15  5:41 ` [PATCH 15/15] usb: dwc2: Get rid of useless error checks in suspend interrupt Artur Petrosyan
2021-04-16 12:46 ` [PATCH v2 00/15] usb: dwc2: Fix Hibernation issues Artur Petrosyan
2021-04-16 12:46 ` [PATCH v2 01/15] usb: dwc2: Update exit hibernation when port reset is asserted Artur Petrosyan
2021-04-19  7:30   ` Minas Harutyunyan
2021-04-16 12:46 ` [PATCH v2 02/15] usb: dwc2: Reset DEVADDR after exiting gadget hibernation Artur Petrosyan
2021-04-16 12:47 ` [PATCH v2 03/15] usb: dwc2: Fix host mode hibernation exit with remote wakeup flow Artur Petrosyan
2021-04-19  7:30   ` Minas Harutyunyan
2021-04-16 12:47 ` [PATCH v2 04/15] usb: dwc2: Fix hibernation between host and device modes Artur Petrosyan
2021-04-16 12:47 ` [PATCH v2 05/15] usb: dwc2: Allow exiting hibernation from gpwrdn rst detect Artur Petrosyan
2021-04-16 12:47 ` [PATCH v2 06/15] usb: dwc2: Clear fifo_map when resetting core Artur Petrosyan
2021-04-16 12:47 ` [PATCH v2 07/15] usb: dwc2: Clear GINTSTS_RESTOREDONE bit after restore is generated Artur Petrosyan
2021-04-16 12:47 ` [PATCH v2 08/15] usb: dwc2: Move enter hibernation to dwc2_port_suspend() function Artur Petrosyan
2021-04-19  7:31   ` Minas Harutyunyan
2021-04-16 12:47 ` [PATCH v2 09/15] usb: dwc2: Move exit hibernation to dwc2_port_resume() function Artur Petrosyan
2021-04-19  7:31   ` Minas Harutyunyan
2021-04-16 12:48 ` [PATCH v2 10/15] usb: dwc2: Allow exit hibernation in urb enqueue Artur Petrosyan
2021-04-19  7:31   ` Minas Harutyunyan
2021-04-16 12:48 ` [PATCH v2 11/15] usb: dwc2: Add hibernation entering flow by system suspend Artur Petrosyan
2021-04-19  7:31   ` Minas Harutyunyan
2021-04-16 12:48 ` [PATCH v2 12/15] usb: dwc2: Add hibernation exiting flow by system resume Artur Petrosyan
2021-04-19  7:31   ` Minas Harutyunyan
2021-04-16 12:48 ` [PATCH v2 13/15] usb: dwc2: Add exit hibernation mode before removing drive Artur Petrosyan
2021-04-19  7:32   ` Minas Harutyunyan
2021-04-16 12:48 ` [PATCH v2 14/15] usb: dwc2: Update dwc2_handle_usb_suspend_intr function Artur Petrosyan
2021-04-16 12:48 ` [PATCH v2 15/15] usb: dwc2: Get rid of useless error checks in suspend interrupt Artur Petrosyan
2021-04-19  7:32   ` Minas Harutyunyan

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