linux-kernel - Re: [PATCH 0/2] ath10k: Enable QDSS clock on sm8150

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Message-ID: <20200127234223.GA202699@yoga>
Date:   Mon, 27 Jan 2020 15:42:23 -0800
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Stephen Boyd <sboyd@...nel.org>
Cc:     Andy Gross <agross@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Kalle Valo <kvalo@...eaurora.org>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, ath10k@...ts.infradead.org
Subject: Re: [PATCH 0/2] ath10k: Enable QDSS clock on sm8150

On Mon 27 Jan 10:40 PST 2020, Stephen Boyd wrote:

> Quoting Bjorn Andersson (2019-12-22 21:48:53)
> > On SM8150 the WiFi firmware depends on the QDSS clock ticking, or the system
> > will reset due to an NoC error. So this adds an optional clock to the ath10k
> > binding and makes sure it's enabled while the WiFi firmware needs it.
> 
> Hopefully this isn't a requirement in production firmware? Seems
> wasteful to keep the debug clk enabled in the field when nobody is
> debugging anything.
> 

I'm confused about this as well, but I'm told that it was fixed
post-8150.

Regards,
Bjorn