linux-kernel - Re: [PATCH V2 3/3] tty: serial: qcom_geni

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Message-ID: <20200724084216.GC3977020@kroah.com>
Date:   Fri, 24 Jul 2020 10:42:16 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     satya priya <skakit@...eaurora.org>
Cc:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, akashast@...eaurora.org,
        rojay@...eaurora.org, msavaliy@....qualcomm.com
Subject: Re: [PATCH V2 3/3] tty: serial: qcom_geni_serial: Fix the UART
 wakeup issue

On Fri, Jul 24, 2020 at 09:28:02AM +0530, satya priya wrote:
> As a part of system suspend we call uart_port_suspend from the
> Serial driver, which calls set_mctrl passing mctrl as NULL. This
> makes RFR high(NOT_READY) during suspend.
> 
> Due to this BT SoC is not able to send wakeup bytes to UART during
> suspend. Included if check for non-suspend case to keep RFR low
> during suspend.
> 
> Signed-off-by: satya priya <skakit@...eaurora.org>

Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>