From: Chanwoo Choi <cw00.choi@samsung.com>
To: Dmitry Osipenko <digetx@gmail.com>,
Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Georgi Djakov <georgi.djakov@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>,
Peter De Schrijver <pdeschrijver@nvidia.com>,
MyungJoo Ham <myungjoo.ham@samsung.com>,
Kyungmin Park <kyungmin.park@samsung.com>,
Mikko Perttunen <cyndis@kapsi.fi>
Cc: devicetree@vger.kernel.org, linux-pm@vger.kernel.org,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
"Artur Świgoń" <a.swigon@samsung.com>,
linux-tegra@vger.kernel.org
Subject: Re: [PATCH v4 11/37] PM / devfreq: tegra30: Silence deferred probe error
Date: Thu, 2 Jul 2020 10:34:59 +0900 [thread overview]
Message-ID: <8e941321-5da6-e9e7-6a4e-8c0477911ebd@samsung.com> (raw)
In-Reply-To: <fda8aa80-04f1-af00-7a0d-f9b589cdb37e@gmail.com>
On 7/2/20 10:20 AM, Dmitry Osipenko wrote:
> 02.07.2020 03:59, Chanwoo Choi пишет:
>> Hi,
>>
>> On 6/9/20 10:13 PM, Dmitry Osipenko wrote:
>>> Tegra EMC driver was turned into a regular kernel driver, it also could
>>> be compiled as a loadable kernel module now. Hence EMC clock isn't
>>> guaranteed to be available and clk_get("emc") may return -EPROBE_DEFER and
>>> there is no good reason to spam KMSG with a error about missing EMC clock
>>> in this case, so let's silence the deferred probe error.
>>>
>>> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
>>> ---
>>> drivers/devfreq/tegra30-devfreq.c | 9 ++++++---
>>> 1 file changed, 6 insertions(+), 3 deletions(-)
>>>
>>> diff --git a/drivers/devfreq/tegra30-devfreq.c b/drivers/devfreq/tegra30-devfreq.c
>>> index e94a27804c20..423dd35c95b3 100644
>>> --- a/drivers/devfreq/tegra30-devfreq.c
>>> +++ b/drivers/devfreq/tegra30-devfreq.c
>>> @@ -801,9 +801,12 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
>>> }
>>>
>>> tegra->emc_clock = devm_clk_get(&pdev->dev, "emc");
>>> - if (IS_ERR(tegra->emc_clock)) {
>>> - dev_err(&pdev->dev, "Failed to get emc clock\n");
>>> - return PTR_ERR(tegra->emc_clock);
>>> + err = PTR_ERR_OR_ZERO(tegra->emc_clock);
>>> + if (err) {
>>> + if (err != -EPROBE_DEFER)
>>> + dev_err(&pdev->dev, "Failed to get emc clock: %d\n",
>>> + err);
>>> + return err;
>>> }
>>>
>>> err = platform_get_irq(pdev, 0);
>>>
>>
>> As I commented on patch10, I recommend that you add the Tegra EMC driver
>> commit information into patch description and Looks good to me.
>>
>
> Hello, Chanwoo!
>
> This patch11 and patch10 are depending on the patches 4/5 (the Tegra EMC
> driver patches) of *this* series, hence there is no commit information.
> I'm expecting that this whole series will go via tegra tree once all the
> patches will be reviewed and collect all the necessary acks from you,
> ICC and CLK subsystem maintainers.
>
> Please feel free to give yours ack to the patches 10/11 if they are good
> to you :)
>
>
OK. Looks good to me
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
--
Best Regards,
Chanwoo Choi
Samsung Electronics
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next prev parent reply other threads:[~2020-07-02 7:26 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-09 13:13 [PATCH v4 00/37] Introduce memory interconnect for NVIDIA Tegra SoCs Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 01/37] clk: Export clk_hw_reparent() Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 02/37] clk: tegra: Remove Memory Controller lock Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 03/37] clk: tegra: Export Tegra20 EMC kernel symbols Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 04/37] memory: tegra20-emc: Make driver modular Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 05/37] memory: tegra30-emc: " Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 06/37] memory: tegra124-emc: " Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 07/37] memory: tegra124-emc: Use devm_platform_ioremap_resource Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 08/37] soc/tegra: fuse: Export tegra_read_ram_code() Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 09/37] memory: tegra20-emc: Initialize MC timings Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 10/37] PM / devfreq: tegra20: Silence deferred probe error Dmitry Osipenko
2020-07-02 0:56 ` Chanwoo Choi
2020-07-02 1:35 ` Chanwoo Choi
2020-06-09 13:13 ` [PATCH v4 11/37] PM / devfreq: tegra30: " Dmitry Osipenko
2020-07-02 0:59 ` Chanwoo Choi
2020-07-02 1:20 ` Dmitry Osipenko
2020-07-02 1:34 ` Chanwoo Choi [this message]
2020-07-02 1:25 ` Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 12/37] PM / devfreq: tegra20: Use MC timings for building OPP table Dmitry Osipenko
2020-07-02 4:18 ` Chanwoo Choi
2020-07-02 5:07 ` Dmitry Osipenko
2020-07-02 5:30 ` Chanwoo Choi
2020-07-02 5:43 ` Dmitry Osipenko
2020-07-02 5:53 ` Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 13/37] PM / devfreq: tegra30: " Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 14/37] PM / devfreq: tegra20: Add error messages to tegra_devfreq_target() Dmitry Osipenko
2020-07-02 1:12 ` Chanwoo Choi
2020-06-09 13:13 ` [PATCH v4 15/37] PM / devfreq: tegra30: " Dmitry Osipenko
2020-07-02 1:12 ` Chanwoo Choi
2020-06-09 13:13 ` [PATCH v4 16/37] PM / devfreq: tegra20: Adjust clocks conversion ratio and polling interval Dmitry Osipenko
2020-07-02 1:37 ` Chanwoo Choi
2020-06-09 13:13 ` [PATCH v4 17/37] PM / devfreq: tegra20: Relax Kconfig dependency Dmitry Osipenko
2020-07-02 2:10 ` Chanwoo Choi
2020-06-09 13:13 ` [PATCH v4 18/37] dt-bindings: memory: tegra20: mc: Document new interconnect property Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 19/37] dt-bindings: memory: tegra20: emc: " Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 20/37] dt-bindings: memory: tegra30: mc: " Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 21/37] dt-bindings: memory: tegra30: emc: " Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 22/37] dt-bindings: host1x: Document new interconnect properties Dmitry Osipenko
2020-06-17 21:37 ` Rob Herring
2020-06-17 21:44 ` Dmitry Osipenko
2020-06-17 21:48 ` Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 23/37] dt-bindings: memory: tegra20: Add memory client IDs Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 24/37] dt-bindings: memory: tegra30: " Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 25/37] ARM: tegra: Add interconnect properties to Tegra20 device-tree Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 26/37] ARM: tegra: Add interconnect properties to Tegra30 device-tree Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 27/37] interconnect: Relax requirement in of_icc_get_from_provider() Dmitry Osipenko
2020-07-01 17:10 ` Georgi Djakov
2020-07-01 23:41 ` Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 28/37] memory: tegra: Register as interconnect provider Dmitry Osipenko
2020-07-01 17:12 ` Georgi Djakov
2020-07-01 23:36 ` Dmitry Osipenko
2020-07-02 12:36 ` Georgi Djakov
2020-07-03 8:41 ` Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 29/37] memory: tegra20-emc: Use devm_platform_ioremap_resource Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 30/37] memory: tegra20-emc: Continue probing if timings are missing in device-tree Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 31/37] memory: tegra20-emc: Register as interconnect provider Dmitry Osipenko
2020-06-09 13:13 ` [PATCH v4 32/37] memory: tegra20-emc: Create tegra20-devfreq device Dmitry Osipenko
2020-06-09 13:14 ` [PATCH v4 33/37] memory: tegra30-emc: Continue probing if timings are missing in device-tree Dmitry Osipenko
2020-06-09 13:14 ` [PATCH v4 34/37] memory: tegra30-emc: Register as interconnect provider Dmitry Osipenko
2020-06-09 13:14 ` [PATCH v4 35/37] drm/tegra: dc: Support memory bandwidth management Dmitry Osipenko
2020-06-09 13:14 ` [PATCH v4 36/37] drm/tegra: dc: Tune up high priority request controls for Tegra20 Dmitry Osipenko
2020-06-09 13:14 ` [PATCH v4 37/37] drm/tegra: dc: Extend debug stats with total number of events Dmitry Osipenko
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