From: Kalle Valo <kvalo@qca.qualcomm.com>
To: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com>
Cc: <ath10k@lists.infradead.org>, <linux-wireless@vger.kernel.org>
Subject: Re: [PATCH V2] ath10k: Delay device access after cold reset
Date: Fri, 24 Jul 2015 10:44:02 +0300 [thread overview]
Message-ID: <87vbdaf1a5.fsf@kamboji.qca.qualcomm.com> (raw)
In-Reply-To: <1436518880-9638-1-git-send-email-vthiagar@qti.qualcomm.com> (Vasanthakumar Thiagarajan's message of "Fri, 10 Jul 2015 14:31:20 +0530")
Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com> writes:
> It is observed that during cold reset pcie access right
> after a write operation to SOC_GLOBAL_RESET_ADDRESS causes
> Data Bus Error and system hard lockup. The reason
> for bus error is that pcie needs some time to get
> back to stable state for any transaction during cold reset. Add
> delay of 20 msecs after write of SOC_GLOBAL_RESET_ADDRESS
> to fix this issue. This patch is tested on QCA988X. This is
> also tested on QCA99X0 which is WIP.
>
> Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com>
Thanks, applied.
--
Kalle Valo
prev parent reply other threads:[~2015-07-24 7:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-10 9:01 [PATCH V2] ath10k: Delay device access after cold reset Vasanthakumar Thiagarajan
2015-07-24 7:44 ` Kalle Valo [this message]
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