From: Mukesh Savaliya <mukesh.savaliya@oss.qualcomm.com>
To: Praveen Talari <praveen.talari@oss.qualcomm.com>,
konrad.dybcio@oss.qualcomm.com,
Sudeep Holla <sudeep.holla@kernel.org>,
Cristian Marussi <cristian.marussi@arm.com>,
Ulf Hansson <ulfh@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jirislaby@kernel.org>,
Mark Brown <broonie@kernel.org>,
Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com>,
Andi Shyti <andi.shyti@kernel.org>
Cc: chandana.chiluveru@oss.qualcomm.com, arm-scmi@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-serial@vger.kernel.org, linux-spi@vger.kernel.org,
linux-i2c@vger.kernel.org
Subject: Re: [PATCH 1/7] pmdomain: arm: Fix -EINVAL from scmi_pd_set_perf_state() on state 0
Date: Wed, 12 Aug 2026 12:28:29 +0530 [thread overview]
Message-ID: <61eb40e1-1eae-45a3-af65-62eaaf27edc4@oss.qualcomm.com> (raw)
In-Reply-To: <20260805-derive_clk_perf_tbl_from_perf_domain_opp_table-v1-1-61171ab1cdce@oss.qualcomm.com>
On 8/5/2026 1:27 AM, Praveen Talari wrote:
> Currently, scmi_pd_set_perf_state() treats a performance state of 0 as
> invalid and returns -EINVAL. As a result, devices attached to SCMI
> performance domains can report failures when relinquishing their
> performance vote.
>
> The OPP framework use performance state 0 to indicate that no performance
> vote is required. For example, dev_pm_opp_set_rate(dev, 0) is commonly
> used (by firmware or linux) when a device is runtime suspended.
>
> A zero performance state does not require any SCMI performance request
> to be sent. Treat it as a no-op and return success instead of reporting
> an error.
>
> Signed-off-by: Praveen Talari <praveen.talari@oss.qualcomm.com>
> ---
Acked-by : Mukesh Savaliya <mukesh.savaliya@oss.qualcomm.com>
next prev parent reply other threads:[~2026-08-12 6:58 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-04 19:57 [PATCH 0/7] soc: qcom: geni: Derive SE clock configuration from OPP table on SA8255P Praveen Talari
2026-08-04 19:57 ` [PATCH 1/7] pmdomain: arm: Fix -EINVAL from scmi_pd_set_perf_state() on state 0 Praveen Talari
2026-08-10 14:19 ` Ulf Hansson
2026-08-12 6:58 ` Mukesh Savaliya [this message]
2026-08-12 7:24 ` Mukesh Savaliya
2026-08-12 8:57 ` Ulf Hansson
2026-08-12 9:13 ` Mukesh Savaliya
2026-08-25 8:22 ` Abel Vesa
2026-08-04 19:57 ` [PATCH 2/7] soc: qcom: geni-se: Populate clk_perf_tbl with SE source clock frequencies from perf OPP table Praveen Talari
2026-08-12 7:36 ` Mukesh Savaliya
2026-08-24 14:56 ` Konrad Dybcio
2026-08-24 16:55 ` Praveen Talari
2026-08-26 15:17 ` Praveen Talari
2026-08-04 19:57 ` [PATCH 3/7] soc: qcom: geni-se: Add helper to set SE clock rate via OPP Praveen Talari
2026-08-12 8:55 ` Mukesh Savaliya
2026-08-24 11:07 ` Mukesh Savaliya
2026-08-24 14:58 ` Konrad Dybcio
2026-08-24 17:00 ` Praveen Talari
2026-08-04 19:57 ` [PATCH 4/7] serial: qcom-geni: Use geni_se_set_rate() for source clock configuration Praveen Talari
2026-08-24 11:39 ` Mukesh Savaliya
2026-08-24 11:40 ` Mukesh Savaliya
2026-08-24 15:05 ` Konrad Dybcio
2026-08-25 4:00 ` Praveen Talari
2026-08-25 8:28 ` Konrad Dybcio
2026-08-04 19:57 ` [PATCH 5/7] spi: qcom-geni: Use geni_se_set_rate() for setting source clock frequency Praveen Talari
2026-08-04 20:03 ` Mark Brown
2026-08-24 11:52 ` Mukesh Savaliya
2026-08-04 19:57 ` [PATCH 6/7] i2c: qcom-geni: Use common GENI resource initialization helper Praveen Talari
2026-08-24 13:12 ` Mukesh Savaliya
2026-08-25 13:34 ` Praveen Talari
2026-08-04 19:57 ` [PATCH 7/7] i2c: qcom-geni: Use geni_se_set_rate() for setting source clock frequency Praveen Talari
2026-08-24 13:41 ` Mukesh Savaliya
2026-08-25 18:03 ` Praveen Talari
[not found] ` <e000c3da-32f5-49ba-9aff-b2b17db23927@oss.qualcomm.com>
2026-08-26 11:54 ` Mukesh Savaliya
2026-08-24 15:06 ` Konrad Dybcio
2026-08-25 8:19 ` Praveen Talari
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