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-usb@vger.kernel.org>
Cc: John Youn <John.Youn@synopsys.com>,
Artur Petrosyan <Arthur.Petrosyan@synopsys.com>
Subject: [v1,13/14] usb: dwc2: Clear GINTSTS_RESTOREDONE bit after restore is generated.
Date: Fri, 19 Apr 2019 11:25:38 +0000 [thread overview]
Message-ID: <73d2c9aca58e7cac50d02bbbd853c23ab0463b48.1555672441.git.arturp@synopsys.com> (raw)
When hibernation exit is performed the dwc2_hib_restore_common()
function is called. In that function we wait until GINTSTS_RESTOREDONE
bit is set. However, after the setting of that bit we get a lot of
(dwc2_hsotg_irq:) interrupts which indicates that (GINTSTS.RstrDoneInt)
restore done interrupt is asserted.
To avoid restore done interrupt storm after restore is generated
clear GINTSTS_RESTOREDONE bit in GINTSTS register.
Signed-off-by: Artur Petrosyan <arturp@synopsys.com>
---
drivers/usb/dwc2/core.c | 6 ++++++
1 file changed, 6 insertions(+)
--
2.11.0
diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c
index fbbd6a2f10ad..18ea0d896e12 100644
--- a/drivers/usb/dwc2/core.c
+++ b/drivers/usb/dwc2/core.c
@@ -382,6 +382,12 @@ void dwc2_hib_restore_common(struct dwc2_hsotg *hsotg, int rem_wakeup,
__func__);
} else {
dev_dbg(hsotg->dev, "restore done generated here\n");
+
+ /*
+ * To avoid restore done interrupt storm after restore is
+ * generated clear GINTSTS_RESTOREDONE bit.
+ */
+ dwc2_writel(hsotg, GINTSTS_RESTOREDONE, GINTSTS);
}
}
WARNING: multiple messages have this Message-ID (diff)
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-usb@vger.kernel.org>
Cc: John Youn <John.Youn@synopsys.com>,
Artur Petrosyan <Arthur.Petrosyan@synopsys.com>
Subject: [PATCH v1 13/14] usb: dwc2: Clear GINTSTS_RESTOREDONE bit after restore is generated.
Date: Fri, 19 Apr 2019 11:25:38 +0000 [thread overview]
Message-ID: <73d2c9aca58e7cac50d02bbbd853c23ab0463b48.1555672441.git.arturp@synopsys.com> (raw)
Message-ID: <20190419112538.hpaZA1HCgK3v4yX-8koAyDJWoMwegKalGnzvTK63VfI@z> (raw)
In-Reply-To: <cover.1555672441.git.arturp@synopsys.com>
When hibernation exit is performed the dwc2_hib_restore_common()
function is called. In that function we wait until GINTSTS_RESTOREDONE
bit is set. However, after the setting of that bit we get a lot of
(dwc2_hsotg_irq:) interrupts which indicates that (GINTSTS.RstrDoneInt)
restore done interrupt is asserted.
To avoid restore done interrupt storm after restore is generated
clear GINTSTS_RESTOREDONE bit in GINTSTS register.
Signed-off-by: Artur Petrosyan <arturp@synopsys.com>
---
drivers/usb/dwc2/core.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c
index fbbd6a2f10ad..18ea0d896e12 100644
--- a/drivers/usb/dwc2/core.c
+++ b/drivers/usb/dwc2/core.c
@@ -382,6 +382,12 @@ void dwc2_hib_restore_common(struct dwc2_hsotg *hsotg, int rem_wakeup,
__func__);
} else {
dev_dbg(hsotg->dev, "restore done generated here\n");
+
+ /*
+ * To avoid restore done interrupt storm after restore is
+ * generated clear GINTSTS_RESTOREDONE bit.
+ */
+ dwc2_writel(hsotg, GINTSTS_RESTOREDONE, GINTSTS);
}
}
--
2.11.0
next reply other threads:[~2019-04-19 11:25 UTC|newest]
Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-19 11:25 Artur Petrosyan [this message]
2019-04-19 11:25 ` [PATCH v1 13/14] usb: dwc2: Clear GINTSTS_RESTOREDONE bit after restore is generated Artur Petrosyan
-- strict thread matches above, loose matches on Subject: below --
2019-05-03 8:13 [v1,04/14] usb: dwc2: Fix suspend state in host mode for partial power down Artur Petrosyan
2019-05-03 8:13 ` [PATCH v1 04/14] " Artur Petrosyan
2019-05-03 7:58 [v1,08/14] usb: dwc2: Add default param to control power optimization Artur Petrosyan
2019-05-03 7:58 ` [PATCH v1 08/14] " Artur Petrosyan
2019-05-01 1:54 [v1,04/14] usb: dwc2: Fix suspend state in host mode for partial power down Doug Anderson
2019-05-01 1:54 ` [PATCH v1 04/14] " Doug Anderson
2019-04-30 15:23 [v1,08/14] usb: dwc2: Add default param to control power optimization Doug Anderson
2019-04-30 15:23 ` [PATCH v1 08/14] " Doug Anderson
2019-04-30 13:06 [v1,14/14] usb: dwc2: Add enter/exit hibernation from system issued suspend/resume Artur Petrosyan
2019-04-30 13:06 ` [PATCH v1 14/14] " Artur Petrosyan
2019-04-30 12:45 [v1,08/14] usb: dwc2: Add default param to control power optimization Artur Petrosyan
2019-04-30 12:45 ` [PATCH v1 08/14] " Artur Petrosyan
2019-04-30 7:10 [v1,04/14] usb: dwc2: Fix suspend state in host mode for partial power down Artur Petrosyan
2019-04-30 7:10 ` [PATCH v1 04/14] " Artur Petrosyan
2019-04-29 17:42 [v1,14/14] usb: dwc2: Add enter/exit hibernation from system issued suspend/resume Doug Anderson
2019-04-29 17:42 ` [PATCH v1 14/14] " Doug Anderson
2019-04-29 17:40 [v1,08/14] usb: dwc2: Add default param to control power optimization Doug Anderson
2019-04-29 17:40 ` [PATCH v1 08/14] " Doug Anderson
2019-04-29 17:35 [v1,04/14] usb: dwc2: Fix suspend state in host mode for partial power down Doug Anderson
2019-04-29 17:35 ` [PATCH v1 04/14] " Doug Anderson
2019-04-29 12:01 [v1,14/14] usb: dwc2: Add enter/exit hibernation from system issued suspend/resume Artur Petrosyan
2019-04-29 12:01 ` [PATCH v1 14/14] " Artur Petrosyan
2019-04-29 11:35 [v1,09/14] usb: dwc2: Update dwc2_handle_usb_suspend_intr function Artur Petrosyan
2019-04-29 11:35 ` [PATCH v1 09/14] " Artur Petrosyan
2019-04-29 11:29 [v1,08/14] usb: dwc2: Add default param to control power optimization Artur Petrosyan
2019-04-29 11:29 ` [PATCH v1 08/14] " Artur Petrosyan
2019-04-29 11:03 [v1,04/14] usb: dwc2: Fix suspend state in host mode for partial power down Artur Petrosyan
2019-04-29 11:03 ` [PATCH v1 04/14] " Artur Petrosyan
2019-04-29 10:54 [v1,03/14] usb: dwc2: Fix wakeup detected and session request interrupt handlers Artur Petrosyan
2019-04-29 10:54 ` [PATCH v1 03/14] " Artur Petrosyan
2019-04-26 21:00 [v1,14/14] usb: dwc2: Add enter/exit hibernation from system issued suspend/resume Doug Anderson
2019-04-26 21:00 ` [PATCH v1 14/14] " Doug Anderson
2019-04-26 20:51 [v1,12/14] usb: dwc2: Clear fifo_map when resetting core Doug Anderson
2019-04-26 20:51 ` [PATCH v1 12/14] " Doug Anderson
2019-04-26 20:51 [v1,09/14] usb: dwc2: Update dwc2_handle_usb_suspend_intr function Doug Anderson
2019-04-26 20:51 ` [PATCH v1 09/14] " Doug Anderson
2019-04-26 20:46 [v1,08/14] usb: dwc2: Add default param to control power optimization Doug Anderson
2019-04-26 20:46 ` [PATCH v1 08/14] " Doug Anderson
2019-04-26 20:45 [v1,06/14] usb: dwc2: Add part. power down exit from dwc2_conn_id_status_change() Doug Anderson
2019-04-26 20:45 ` [PATCH v1 06/14] " Doug Anderson
2019-04-26 20:45 [v1,05/14] usb: dwc2: Add port conn. sts. checking in _dwc2_hcd_resume() function Doug Anderson
2019-04-26 20:45 ` [PATCH v1 05/14] " Doug Anderson
2019-04-26 20:44 [v1,04/14] usb: dwc2: Fix suspend state in host mode for partial power down Doug Anderson
2019-04-26 20:44 ` [PATCH v1 04/14] " Doug Anderson
2019-04-26 20:44 [v1,03/14] usb: dwc2: Fix wakeup detected and session request interrupt handlers Doug Anderson
2019-04-26 20:44 ` [PATCH v1 03/14] " Doug Anderson
2019-04-19 11:25 [v1,14/14] usb: dwc2: Add enter/exit hibernation from system issued suspend/resume Artur Petrosyan
2019-04-19 11:25 ` [PATCH v1 14/14] " Artur Petrosyan
2019-04-19 11:25 [v1,12/14] usb: dwc2: Clear fifo_map when resetting core Artur Petrosyan
2019-04-19 11:25 ` [PATCH v1 12/14] " Artur Petrosyan
2019-04-19 11:25 [v1,11/14] usb: dwc2: Allow exiting hibernation from gpwrdn rst detect Artur Petrosyan
2019-04-19 11:25 ` [PATCH v1 11/14] " Artur Petrosyan
2019-04-19 11:25 [v1,10/14] usb: dwc2: Fix hibernation between host and device modes Artur Petrosyan
2019-04-19 11:25 ` [PATCH v1 10/14] " Artur Petrosyan
2019-04-19 11:24 [v1,09/14] usb: dwc2: Update dwc2_handle_usb_suspend_intr function Artur Petrosyan
2019-04-19 11:24 ` [PATCH v1 09/14] " Artur Petrosyan
2019-04-19 11:24 [v1,08/14] usb: dwc2: Add default param to control power optimization Artur Petrosyan
2019-04-19 11:24 ` [PATCH v1 08/14] " Artur Petrosyan
2019-04-19 11:24 [v1,07/14] usb: dwc2: Reset DEVADDR after exiting gadget hibernation Artur Petrosyan
2019-04-19 11:24 ` [PATCH v1 07/14] " Artur Petrosyan
2019-04-19 11:24 [v1,06/14] usb: dwc2: Add part. power down exit from dwc2_conn_id_status_change() Artur Petrosyan
2019-04-19 11:24 ` [PATCH v1 06/14] " Artur Petrosyan
2019-04-19 11:24 [v1,05/14] usb: dwc2: Add port conn. sts. checking in _dwc2_hcd_resume() function Artur Petrosyan
2019-04-19 11:24 ` [PATCH v1 05/14] " Artur Petrosyan
2019-04-19 11:24 [v1,04/14] usb: dwc2: Fix suspend state in host mode for partial power down Artur Petrosyan
2019-04-19 11:24 ` [PATCH v1 04/14] " Artur Petrosyan
2019-04-19 11:23 [v1,03/14] usb: dwc2: Fix wakeup detected and session request interrupt handlers Artur Petrosyan
2019-04-19 11:23 ` [PATCH v1 03/14] " Artur Petrosyan
2019-04-19 11:23 [v1,02/14] usb: dwc2: Add descriptive debug messages for Partial Power Down mode Artur Petrosyan
2019-04-19 11:23 ` [PATCH v1 02/14] " Artur Petrosyan
2019-04-19 11:23 [v1,01/14] usb: dwc2: Fix dwc2_restore_device_registers() function Artur Petrosyan
2019-04-19 11:23 ` [PATCH v1 01/14] " Artur Petrosyan
2019-04-19 11:23 [PATCH v1 00/14] usb: dwc2: Fix and improve power saving modes Artur Petrosyan
2019-04-25 12:43 ` Felipe Balbi
2019-04-25 14:00 ` Artur Petrosyan
2019-04-25 20:12 ` Doug Anderson
2019-04-26 7:10 ` Artur Petrosyan
2019-04-26 16:01 ` Doug Anderson
2019-04-26 21:06 ` Doug Anderson
2019-04-29 12:05 ` Artur Petrosyan
2019-04-29 17:43 ` Doug Anderson
2019-04-29 8:44 ` Artur Petrosyan
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