From: Stephen Boyd <swboyd@chromium.org>
To: Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
Rajendra Nayak <rnayak@codeaurora.org>,
Ulf Hansson <ulf.hansson@linaro.org>
Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] soc: qcom: rpmhpd: Use corner in power_off
Date: Thu, 8 Jul 2021 00:21:32 +0000 [thread overview]
Message-ID: <CAE-0n50EvG4qV0n+Ag+dvFxKKasnUzwH=MA+f-jsgDdBqaqziQ@mail.gmail.com> (raw)
In-Reply-To: <20210703005416.2668319-2-bjorn.andersson@linaro.org>
Quoting Bjorn Andersson (2021-07-02 17:54:15)
> rpmhpd_aggregate_corner() takes a corner as parameter, but in
> rpmhpd_power_off() the code requests the level of the first corner
> instead.
>
> In all (known) current cases the first corner has level 0, so this
> change should be a nop, but in case that there's a power domain with a
> non-zero lowest level this makes sure that rpmhpd_power_off() actually
> requests the lowest level - which is the closest to "power off" we can
> get.
>
> While touching the code, also skip the unnecessary zero-initialization
> of "ret".
>
> Fixes: 279b7e8a62cc ("soc: qcom: rpmhpd: Add RPMh power domain driver")
> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
> ---
I think this is why qcom folks talk about "virtual corner" and "physical
corner" because there's the one in command DB and the one in hardware.
Maybe we should change rpmhpd_aggregate_corner() to call the argument
'vcorner'? Unfortunately we can't really build a type system here to
make this problem easy to catch with a mismatched type, unless there's
some sort of typedef trick we can play?
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
next prev parent reply other threads:[~2021-07-08 0:21 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-03 0:54 [PATCH 0/2] soc: qcom: rpmhpd: Improve rpmhpd enable handling Bjorn Andersson
2021-07-03 0:54 ` [PATCH 1/2] soc: qcom: rpmhpd: Use corner in power_off Bjorn Andersson
2021-07-05 4:26 ` Rajendra Nayak
2021-07-05 5:06 ` Bjorn Andersson
2021-07-05 5:40 ` Rajendra Nayak
2021-07-07 4:49 ` Bjorn Andersson
2021-07-07 6:31 ` Rajendra Nayak
2021-07-07 15:48 ` Bjorn Andersson
2021-07-07 16:58 ` Dmitry Baryshkov
2021-07-08 0:21 ` Stephen Boyd [this message]
2021-07-08 4:35 ` Bjorn Andersson
2021-07-08 5:03 ` Rajendra Nayak
2021-07-08 6:51 ` Stephen Boyd
2021-07-15 10:40 ` Sibi Sankar
2021-07-03 0:54 ` [PATCH 2/2] soc: qcom: rpmhpd: Make power_on actually enable the domain Bjorn Andersson
2021-07-03 2:54 ` [RESEND PATCH " Bjorn Andersson
2021-07-08 0:23 ` Stephen Boyd
2021-07-08 0:25 ` Stephen Boyd
2021-07-14 9:22 ` Rajendra Nayak
2021-07-15 12:16 ` Sibi Sankar
2021-07-15 12:24 ` Rajendra Nayak
2021-08-12 13:21 ` Dmitry Baryshkov
2021-08-13 9:45 ` Ulf Hansson
2021-07-05 12:55 ` [PATCH 0/2] soc: qcom: rpmhpd: Improve rpmhpd enable handling Ulf Hansson
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