linux-kernel - Re: [PATCH v4 07/10] drivers: qcom: rpmh-rsc: tcs_is_free() can just check tcs_in

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Date:   Mon, 13 Apr 2020 14:58:48 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Douglas Anderson <dianders@...omium.org>,
        Maulik Shah <mkshah@...eaurora.org>
Cc:     mka@...omium.org, Rajendra Nayak <rnayak@...eaurora.org>,
        evgreen@...omium.org, Lina Iyer <ilina@...eaurora.org>,
        Douglas Anderson <dianders@...omium.org>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 07/10] drivers: qcom: rpmh-rsc: tcs_is_free() can just check tcs_in_use

Quoting Douglas Anderson (2020-04-13 10:04:12)
> tcs_is_free() had two checks in it: does the software think that the
> TCS is free and does the hardware think that the TCS is free.  I
> couldn't figure out in which case the hardware could think that a TCS
> was in-use but software thought it was free.  Apparently there is no
> case and the extra check can be removed.  This apparently has already
> been done in a downstream patch.
> 
> Suggested-by: Maulik Shah <mkshah@...eaurora.org>
> Signed-off-by: Douglas Anderson <dianders@...omium.org>
> Reviewed-by: Maulik Shah <mkshah@...eaurora.org>
> Tested-by: Maulik Shah <mkshah@...eaurora.org>
> ---

Reviewed-by: Stephen Boyd <swboyd@...omium.org>