From: tomasz.figa@gmail•com (Tomasz Figa)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH V2 05/10] USB: OHCI: Properly handle ohci-exynos suspend
Date: Thu, 13 Jun 2013 21:29:45 +0200 [thread overview]
Message-ID: <9340690.Y20fM6tyU7@flatron> (raw)
In-Reply-To: <1371114989-2342-6-git-send-email-manjunath.goudar@linaro.org>
Hi Manjunath,
On Thursday 13 of June 2013 14:46:24 Manjunath Goudar wrote:
> Suspend scenario in case of ohci-exynos glue was not
> properly handled as it was not suspending generic part
> of ohci controller.Calling explicitly the ohci_suspend()
> routine in exynos_ohci_suspend() will ensure proper
> handling of suspend scenario.
>
> V2:
> -Incase ohci_suspend() fails, return right away without
> executing further.
>
> Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro•org>
> Cc: Arnd Bergmann <arnd@arndb•de>
> Cc: Alan Stern <stern@rowland•harvard.edu>
> Cc: Greg KH <greg@kroah•com>
> Cc: linux-usb at vger.kernel.org
> ---
> drivers/usb/host/ohci-exynos.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/drivers/usb/host/ohci-exynos.c
> b/drivers/usb/host/ohci-exynos.c index 6ff830c..8fecb6a 100644
> --- a/drivers/usb/host/ohci-exynos.c
> +++ b/drivers/usb/host/ohci-exynos.c
> @@ -203,9 +203,17 @@ static int exynos_ohci_suspend(struct device *dev)
> struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd);
> struct ohci_hcd *ohci = hcd_to_ohci(hcd);
> struct platform_device *pdev = to_platform_device(dev);
> + bool do_wakeup = device_may_wakeup(dev);
> unsigned long flags;
> int rc = 0;
>
> + rc = ohci_suspend(hcd, do_wakeup);
> + if (rc == 0 && do_wakeup && HCD_WAKEUP_PENDING(hcd)) {
> + ohci_resume(hcd, false);
> + rc = -EBUSY;
> + }
I'm not into USB host subsystem, so I might just ask a stupid question.
Can't we make ohci_suspend check this for us, so the drivers would just
check for error code? It seems like in all your patches this part of code
is duplicated, looking as a good candidate to be generic.
Best regards,
Tomasz
> + if (rc)
> + return rc;
> /*
> * Root hub was already suspended. Disable irq emission and
> * mark HW unaccessible, bail out if RH has been resumed. Use
next prev parent reply other threads:[~2013-06-13 19:29 UTC|newest]
Thread overview: 107+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-12 15:28 [PATCH 00/10] USB: OHCI:Properly handle ohci_suspend()routine in bus glue Manjunath Goudar
2013-06-12 15:28 ` [PATCH 01/10] USB: OHCI: Properly handle ohci-at91 suspend Manjunath Goudar
2013-06-12 16:04 ` Alan Stern
2013-06-12 16:25 ` Alan Stern
2013-06-12 15:28 ` [PATCH 02/10] USB: OHCI: Properly handle ohci-s3c2410 suspend Manjunath Goudar
2013-06-12 15:58 ` Sergei Shtylyov
2013-06-12 15:28 ` [PATCH 03/10] USB: OHCI: Properly handle ohci-da8xx suspend Manjunath Goudar
2013-06-12 15:54 ` Sergei Shtylyov
2013-06-12 15:28 ` [PATCH 04/10] USB: OHCI: Properly handle ohci-ep93xx suspend Manjunath Goudar
2013-06-12 15:28 ` [PATCH 05/10] USB: OHCI: Properly handle ohci-exynos suspend Manjunath Goudar
2013-06-12 15:28 ` [PATCH 06/10] USB: OHCI: Properly handle ohci-omap suspend Manjunath Goudar
2013-06-12 15:28 ` [PATCH 07/10] USB: OHCI: Properly handle ohci-platform suspend Manjunath Goudar
2013-06-12 15:28 ` [PATCH 08/10] USB: OHCI: Properly handle ohci-pxa27x suspend Manjunath Goudar
2013-06-12 15:28 ` [PATCH 09/10] USB: OHCI: Properly handle ohci-sm501 suspend Manjunath Goudar
2013-06-12 15:28 ` [PATCH 10/10] USB: OHCI: Properly handle ohci-spear suspend Manjunath Goudar
2013-06-13 9:10 ` [PATCH 00/10] USB: OHCI:Properly handle ohci_suspend()routine in bus glue Manjunath Goudar
2013-06-13 9:10 ` [PATCH 01/10] USB: OHCI: Properly handle ohci-at91 suspend Manjunath Goudar
2013-06-13 9:10 ` [PATCH 02/10] USB: OHCI: Properly handle ohci-s3c2410 suspend Manjunath Goudar
2013-06-13 9:10 ` [PATCH 03/10] USB: OHCI: Properly handle ohci-da8xx suspend Manjunath Goudar
2013-06-13 9:10 ` [PATCH 04/10] USB: OHCI: Properly handle ohci-ep93xx suspend Manjunath Goudar
2013-06-13 9:10 ` [PATCH 05/10] USB: OHCI: Properly handle ohci-exynos suspend Manjunath Goudar
2013-06-13 9:10 ` [PATCH 06/10] USB: OHCI: Properly handle ohci-omap suspend Manjunath Goudar
2013-06-13 9:10 ` [PATCH 07/10] USB: OHCI: Properly handle ohci-platform suspend Manjunath Goudar
2013-06-13 9:10 ` [PATCH 08/10] USB: OHCI: Properly handle ohci-pxa27x suspend Manjunath Goudar
2013-06-13 9:11 ` [PATCH 09/10] USB: OHCI: Properly handle ohci-sm501 suspend Manjunath Goudar
2013-06-13 9:11 ` [PATCH 10/10] USB: OHCI: Properly handle ohci-spear suspend Manjunath Goudar
2013-06-13 9:19 ` Viresh Kumar
2013-06-13 14:33 ` Alan Stern
2013-06-13 9:16 ` [PATCH V2 00/10] USB: OHCI:Properly handle ohci_suspend()routine in bus glue Manjunath Goudar
2013-06-13 9:16 ` [PATCH V2 01/10] USB: OHCI: Properly handle ohci-at91 suspend Manjunath Goudar
2013-06-13 19:14 ` Alan Stern
[not found] ` <CAJFYCKG8i=33zXS-dhVJopaTVhCKJ_DCKo+q9wyx7CVzqzfn5g@mail.gmail.com>
2013-06-17 9:25 ` Viresh Kumar
2013-06-13 9:16 ` [PATCH V2 02/10] USB: OHCI: Properly handle ohci-s3c2410 suspend Manjunath Goudar
2013-06-13 19:20 ` Alan Stern
2013-06-13 9:16 ` [PATCH V2 03/10] USB: OHCI: Properly handle ohci-da8xx suspend Manjunath Goudar
2013-06-13 19:26 ` Alan Stern
2013-06-13 9:16 ` [PATCH V2 04/10] USB: OHCI: Properly handle ohci-ep93xx suspend Manjunath Goudar
2013-06-13 9:16 ` [PATCH V2 05/10] USB: OHCI: Properly handle ohci-exynos suspend Manjunath Goudar
2013-06-13 19:29 ` Tomasz Figa [this message]
2013-06-13 19:52 ` Alan Stern
[not found] ` <CAJFYCKFHhD2LuPP5LKSXzg4zuCMmNTSWRRUQkwFcQVmXSaLo9Q@mail.gmail.com>
2013-06-18 10:02 ` Sachin Kamat
2013-06-18 15:06 ` Alan Stern
2013-06-13 9:16 ` [PATCH V2 06/10] USB: OHCI: Properly handle ohci-omap suspend Manjunath Goudar
2013-06-13 9:16 ` [PATCH V2 07/10] USB: OHCI: Properly handle ohci-platform suspend Manjunath Goudar
2013-06-13 9:16 ` [PATCH V2 08/10] USB: OHCI: Properly handle ohci-pxa27x suspend Manjunath Goudar
2013-06-13 9:16 ` [PATCH V2 09/10] USB: OHCI: Properly handle ohci-sm501 suspend Manjunath Goudar
2013-06-13 9:16 ` [PATCH V2 10/10] USB: OHCI: Properly handle ohci-spear suspend Manjunath Goudar
2013-06-19 12:12 ` [PATCH V3 00/11] USB: OHCI:Properly handle ohci_suspend()routine in bus glue Manjunath Goudar
2013-06-19 12:12 ` [PATCH V3 01/11] USB: OHCI: Properly handle OHCI controller suspend Manjunath Goudar
2013-06-19 12:12 ` [PATCH V3 02/11] USB: OHCI: Properly handle ohci-at91 suspend Manjunath Goudar
2013-06-19 12:12 ` [PATCH V3 03/11] USB: OHCI: Properly handle ohci-s3c2410 suspend Manjunath Goudar
2013-06-19 12:12 ` [PATCH V3 04/11] USB: OHCI: Properly handle ohci-da8xx suspend Manjunath Goudar
2013-06-19 12:12 ` [PATCH V3 05/11] USB: OHCI: Properly handle ohci-ep93xx suspend Manjunath Goudar
2013-06-19 12:43 ` Sergei Shtylyov
[not found] ` <CAJFYCKGck29t211NTmXSKPtFdah3Pbe8T0UVZDsqWqqax3OL7g@mail.gmail.com>
2013-06-19 14:49 ` Viresh Kumar
2013-06-19 17:33 ` Sergei Shtylyov
2013-06-19 12:12 ` [PATCH V3 06/11] USB: OHCI: Properly handle ohci-exynos suspend Manjunath Goudar
2013-06-19 12:47 ` Sergei Shtylyov
2013-06-19 12:12 ` [PATCH V3 07/11] USB: OHCI: Properly handle ohci-omap suspend Manjunath Goudar
2013-06-19 12:12 ` [PATCH V3 08/11] USB: OHCI: Properly handle ohci-platform suspend Manjunath Goudar
2013-06-19 12:49 ` Sergei Shtylyov
2013-06-19 12:12 ` [PATCH V3 09/11] USB: OHCI: Properly handle ohci-pxa27x suspend Manjunath Goudar
2013-06-19 12:50 ` Sergei Shtylyov
2013-06-19 12:12 ` [PATCH V3 10/11] USB: OHCI: Properly handle ohci-sm501 suspend Manjunath Goudar
2013-06-19 12:12 ` [PATCH V3 11/11] USB: OHCI: Properly handle ohci-spear suspend Manjunath Goudar
2013-06-19 12:53 ` Sergei Shtylyov
2013-06-20 9:35 ` [PATCH V4 00/11] USB: OHCI:Properly handle ohci_suspend()routine in bus glue Manjunath Goudar
2013-06-20 9:35 ` [PATCH V4 01/11] USB: OHCI: Properly handle OHCI controller suspend Manjunath Goudar
2013-06-20 9:35 ` [PATCH V4 02/11] USB: OHCI: Properly handle ohci-at91 suspend Manjunath Goudar
2013-06-20 9:35 ` [PATCH V4 03/11] USB: OHCI: Properly handle ohci-s3c2410 suspend Manjunath Goudar
2013-06-20 9:36 ` [PATCH V4 04/11] USB: OHCI: Properly handle ohci-da8xx suspend Manjunath Goudar
2013-06-20 11:31 ` Sergei Shtylyov
2013-06-20 9:36 ` [PATCH V4 05/11] USB: OHCI: Properly handle ohci-ep93xx suspend Manjunath Goudar
2013-06-20 9:36 ` [PATCH V4 06/11] USB: OHCI: Properly handle ohci-exynos suspend Manjunath Goudar
2013-06-20 9:36 ` [PATCH V4 07/11] USB: OHCI: Properly handle ohci-omap suspend Manjunath Goudar
2013-06-20 9:36 ` [PATCH V4 08/11] USB: OHCI: Properly handle ohci-platform suspend Manjunath Goudar
2013-06-20 9:36 ` [PATCH V4 09/11] USB: OHCI: Properly handle ohci-pxa27x suspend Manjunath Goudar
2013-06-20 9:36 ` [PATCH V4 10/11] USB: OHCI: Properly handle ohci-sm501 suspend Manjunath Goudar
2013-06-20 9:36 ` [PATCH V4 11/11] USB: OHCI: Properly handle ohci-spear suspend Manjunath Goudar
2013-06-20 19:50 ` [PATCH V4 00/11] USB: OHCI:Properly handle ohci_suspend()routine in bus glue Alan Stern
2013-06-25 6:39 ` Manjunath Goudar
2013-06-25 6:39 ` [PATCH V4 01/11] USB: OHCI: Properly handle OHCI controller suspend Manjunath Goudar
2013-06-25 6:39 ` [PATCH V4 02/11] USB: OHCI: Properly handle ohci-at91 suspend Manjunath Goudar
2013-06-25 6:39 ` [PATCH V4 03/11] USB: OHCI: Properly handle ohci-s3c2410 suspend Manjunath Goudar
2013-06-25 6:39 ` [PATCH V4 04/11] USB: OHCI: Properly handle ohci-da8xx suspend Manjunath Goudar
2013-06-25 6:39 ` [PATCH V4 05/11] USB: OHCI: Properly handle ohci-ep93xx suspend Manjunath Goudar
2013-06-25 6:39 ` [PATCH V4 06/11] USB: OHCI: Properly handle ohci-exynos suspend Manjunath Goudar
2013-06-25 6:39 ` [PATCH V4 07/11] USB: OHCI: Properly handle ohci-omap suspend Manjunath Goudar
2013-06-25 6:39 ` [PATCH V4 08/11] USB: OHCI: Properly handle ohci-platform suspend Manjunath Goudar
2013-06-25 6:39 ` [PATCH V4 09/11] USB: OHCI: Properly handle ohci-pxa27x suspend Manjunath Goudar
2013-06-25 6:39 ` [PATCH V4 10/11] USB: OHCI: Properly handle ohci-sm501 suspend Manjunath Goudar
2013-06-25 6:39 ` [PATCH V4 11/11] USB: OHCI: Properly handle ohci-spear suspend Manjunath Goudar
2013-07-22 9:32 ` [PATCH 00/11] USB: OHCI:Properly handle ohci_suspend()routine in bus glue Manjunath Goudar
2013-07-22 9:32 ` [PATCH 01/11] USB: OHCI: Properly handle OHCI controller suspend Manjunath Goudar
2013-07-22 9:32 ` [PATCH 02/11] USB: OHCI: Properly handle ohci-at91 suspend Manjunath Goudar
2013-07-22 9:32 ` [PATCH 03/11] USB: OHCI: Properly handle ohci-s3c2410 suspend Manjunath Goudar
2013-07-22 9:32 ` [PATCH 04/11] USB: OHCI: Properly handle ohci-da8xx suspend Manjunath Goudar
2013-07-22 12:18 ` Sergei Shtylyov
2013-07-22 9:32 ` [PATCH 05/11] USB: OHCI: Properly handle ohci-ep93xx suspend Manjunath Goudar
2013-07-22 9:32 ` [PATCH 06/11] USB: OHCI: Properly handle ohci-exynos suspend Manjunath Goudar
2013-07-22 9:32 ` [PATCH 07/11] USB: OHCI: Properly handle ohci-omap suspend Manjunath Goudar
2013-07-22 9:32 ` [PATCH 08/11] USB: OHCI: Properly handle ohci-platform suspend Manjunath Goudar
2013-07-22 9:32 ` [PATCH 09/11] USB: OHCI: Properly handle ohci-pxa27x suspend Manjunath Goudar
2013-07-22 9:32 ` [PATCH 10/11] USB: OHCI: Properly handle ohci-sm501 suspend Manjunath Goudar
2013-07-22 9:32 ` [PATCH 11/11] USB: OHCI: Properly handle ohci-spear suspend Manjunath Goudar
2013-07-22 9:51 ` [PATCH V4 00/11] USB: OHCI:Properly handle ohci_suspend()routine in bus glue manjunath
2013-07-23 23:06 ` Greg KH
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