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From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Rajendra Nayak <rnayak@codeaurora.org>
Cc: viresh.kumar@linaro.org, sboyd@kernel.org, agross@kernel.org,
	linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
	mka@chromium.org, Mark Brown <broonie@kernel.org>,
	Alok Chauhan <alokc@codeaurora.org>,
	Akash Asthana <akashast@codeaurora.org>,
	linux-spi@vger.kernel.org
Subject: Re: [PATCH v5 2/6] spi: spi-geni-qcom: Use OPP API to set clk/perf state
Date: Wed, 13 May 2020 22:38:27 -0700	[thread overview]
Message-ID: <20200514053827.GK1302550@yoga> (raw)
In-Reply-To: <97288c37-66cf-305d-1e62-a0d12b7cba17@codeaurora.org>

On Wed 13 May 22:03 PDT 2020, Rajendra Nayak wrote:

> 
> []..
> 
> > >   	spi->bus_num = -1;
> > >   	spi->dev.of_node = dev->of_node;
> > > @@ -596,6 +607,9 @@ static int spi_geni_probe(struct platform_device *pdev)
> > >   spi_geni_probe_runtime_disable:
> > >   	pm_runtime_disable(dev);
> > >   	spi_master_put(spi);
> > > +	if (mas->se.has_opp_table)
> > 
> > Why do you need has_opp_table?
> > 
> > Afaict if dev_pm_opp_of_add_table() returns -ENODEV there's no attached
> > opp-table and dev_pm_opp_of_remove_table() is a nop.
> 
> Apparently its not. Calling dev_pm_opp_of_remove_table() when dev_pm_opp_of_add_table()
> failed causes use-count mismatch.
> You can see https://lkml.org/lkml/2020/4/15/18 for more details.
> 

Must have missed that when I glanced at the code, thanks for clarifying.

Regards,
Bjorn

> -- 
> QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
> of Code Aurora Forum, hosted by The Linux Foundation

  reply	other threads:[~2020-05-14  5:38 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-13 11:12 [PATCH v5 0/6] DVFS for IO devices on sdm845 and sc7180 Rajendra Nayak
2020-05-13 11:12 ` [PATCH v5 1/6] tty: serial: qcom_geni_serial: Use OPP API to set clk/perf state Rajendra Nayak
2020-05-13 11:12 ` [PATCH v5 2/6] spi: spi-geni-qcom: " Rajendra Nayak
2020-05-13 19:07   ` Bjorn Andersson
2020-05-14  5:03     ` Rajendra Nayak
2020-05-14  5:38       ` Bjorn Andersson [this message]
2020-05-26 10:39   ` Mark Brown
2020-05-13 11:12 ` [PATCH v5 3/6] drm/msm/dpu: " Rajendra Nayak
2020-05-13 11:13 ` [PATCH v5 4/6] drm/msm: dsi: " Rajendra Nayak
2020-05-13 11:13 ` [PATCH v5 5/6] media: venus: core: Add support for opp tables/perf voting Rajendra Nayak
2020-05-13 18:41   ` Matthias Kaehlcke
2020-05-13 11:13 ` [PATCH v5 6/6] spi: spi-qcom-qspi: Use OPP API to set clk/perf state Rajendra Nayak
2020-05-13 18:52   ` Matthias Kaehlcke
2020-05-26 10:39   ` Mark Brown

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