linux-kernel - Re: [09/35] ath9k: Fix suspend/resume when no interface is UP

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Date:	Sat, 9 Jul 2011 11:58:18 -0400
From:	Paul Gortmaker <paul.gortmaker@...driver.com>
To:	Greg KH <gregkh@...e.de>
Cc:	linux-kernel@...r.kernel.org, stable@...nel.org,
	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Rajkumar Manoharan <rmanohar@....qualcomm.com>,
	"John W. Linville" <linville@...driver.com>
Subject: Re: [09/35] ath9k: Fix suspend/resume when no interface is UP

On Fri, Jul 8, 2011 at 6:49 PM, Greg KH <gregkh@...e.de> wrote:
> 2.6.32-longterm review patch.  If anyone has any objections, please let us know.
>
> ------------------
>
> From: Rajkumar Manoharan <rmanohar@....qualcomm.com>
>
> commit c31eb8e926835582cd186b33a7a864880a4c0c79 upstream.
>
> When no interface has been brought up, the chip's power
> state continued as AWAKE. So during resume, the chip never
> been powered up.
>
> Signed-off-by: Rajkumar Manoharan <rmanohar@....qualcomm.com>
> Signed-off-by: John W. Linville <linville@...driver.com>
> Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
>
> ---
>  drivers/net/wireless/ath/ath9k/pci.c |    6 ++++++
>  1 file changed, 6 insertions(+)
>
> --- a/drivers/net/wireless/ath/ath9k/pci.c
> +++ b/drivers/net/wireless/ath/ath9k/pci.c
> @@ -276,6 +276,12 @@ static int ath_pci_resume(struct pci_dev

This might warrant a double check.   The original was patching the
fullsleep into pci_suspend, not pci_resume, as is shown above here.

Paul.

>                            AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
>        ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1);
>
> +       /* The device has to be moved to FULLSLEEP forcibly.
> +        * Otherwise the chip never moved to full sleep,
> +        * when no interface is up.
> +        */
> +       ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP);
> +
>        return 0;
>  }
>
>
>
> --
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