netdev - Re: [PATCH v2] rtl8xxxu: fix RTL8723BU connection failure issue after warm reboot

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Message-Id: <20191022082639.1DE316079D@smtp.codeaurora.org>
Date:   Tue, 22 Oct 2019 08:26:39 +0000 (UTC)
From:   Kalle Valo <kvalo@...eaurora.org>
To:     Chris Chiu <chiu@...lessm.com>
Cc:     Jes.Sorensen@...il.com, davem@...emloft.net,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux@...lessm.com
Subject: Re: [PATCH v2] rtl8xxxu: fix RTL8723BU connection failure issue after
 warm reboot

Chris Chiu <chiu@...lessm.com> wrote:

> The RTL8723BU has problems connecting to AP after each warm reboot.
> Sometimes it returns no scan result, and in most cases, it fails
> the authentication for unknown reason. However, it works totally
> fine after cold reboot.
> 
> Compare the value of register SYS_CR and SYS_CLK_MAC_CLK_ENABLE
> for cold reboot and warm reboot, the registers imply that the MAC
> is already powered and thus some procedures are skipped during
> driver initialization. Double checked the vendor driver, it reads
> the SYS_CR and SYS_CLK_MAC_CLK_ENABLE also but doesn't skip any
> during initialization based on them. This commit only tells the
> RTL8723BU to do full initialization without checking MAC status.
> 
> Signed-off-by: Chris Chiu <chiu@...lessm.com>
> Signed-off-by: Jes Sorensen <Jes.Sorensen@...il.com>

Patch applied to wireless-drivers-next.git, thanks.

0eeb91ade90c rtl8xxxu: fix RTL8723BU connection failure issue after warm reboot

-- 
https://patchwork.kernel.org/patch/11192201/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches