linux-kernel - Re: [PATCH 4/5] cpufreq: tegra186/tegra194: Handle errors in BPMP response

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Message-ID: <20211004063714.5bux4hwv3lchibnn@vireshk-i7>
Date:   Mon, 4 Oct 2021 12:07:14 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Mikko Perttunen <mperttunen@...dia.com>
Cc:     rafael@...nel.org, thierry.reding@...il.com, jonathanh@...dia.com,
        krzysztof.kozlowski@...onical.com, lorenzo.pieralisi@....com,
        robh@...nel.org, kw@...ux.com, p.zabel@...gutronix.de,
        rui.zhang@...el.com, daniel.lezcano@...aro.org, amitk@...nel.org,
        linux-pm@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Subject: Re: [PATCH 4/5] cpufreq: tegra186/tegra194: Handle errors in BPMP
 response

On 15-09-21, 11:55, Mikko Perttunen wrote:
> The return value from tegra_bpmp_transfer indicates the success or
> failure of the IPC transaction with BPMP. If the transaction
> succeeded, we also need to check the actual command's result code.
> Add code to do this.
> 
> While at it, explicitly handle missing CPU clusters, which can
> occur on floorswept chips. This worked before as well, but
> possibly only by accident.
> 
> Signed-off-by: Mikko Perttunen <mperttunen@...dia.com>
> ---
>  drivers/cpufreq/tegra186-cpufreq.c | 4 ++++
>  drivers/cpufreq/tegra194-cpufreq.c | 8 +++++++-
>  2 files changed, 11 insertions(+), 1 deletion(-)

Should I apply it alone ?

-- 
viresh