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From: Dmitry Osipenko <digetx@gmail.com>
To: Chanwoo Choi <cw00.choi@samsung.com>,
	Thierry Reding <thierry.reding@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	MyungJoo Ham <myungjoo.ham@samsung.com>,
	Kyungmin Park <kyungmin.park@samsung.com>,
	Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-pm@vger.kernel.org
Subject: Re: [PATCH v2 04/19] PM / devfreq: tegra: Don't set EMC clock rate to maximum on probe
Date: Tue, 16 Apr 2019 16:44:53 +0300	[thread overview]
Message-ID: <4ae5b863-a6db-39bb-7654-6dd9b63c0d34@gmail.com> (raw)
In-Reply-To: <9fa3c0c3-0ef4-2d86-b6a8-7bd0fbc131e6@samsung.com>

16.04.2019 4:59, Chanwoo Choi пишет:
> Hi,
> 
> On 19. 4. 15. 오후 11:54, Dmitry Osipenko wrote:
>> There is no real benefit from doing so, hence let's drop that rate setting
>> for consistency.
>>
>> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
>> ---
>>  drivers/devfreq/tegra-devfreq.c | 2 --
>>  1 file changed, 2 deletions(-)
>>
>> diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c
>> index 69581c9082d4..d62fb1b0d9bb 100644
>> --- a/drivers/devfreq/tegra-devfreq.c
>> +++ b/drivers/devfreq/tegra-devfreq.c
>> @@ -648,8 +648,6 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
>>  		return PTR_ERR(tegra->emc_clock);
>>  	}
>>  
>> -	clk_set_rate(tegra->emc_clock, ULONG_MAX);
>> -
> 
> It seems like that initialize the emc_clock as the supported maximum clock.
> But, if the rate for emc_clock initialized by either bootloader or clock driver
> and it's well working until this code, actually, it is not necessary.
> 
> Looks good to me.
> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>

EMC clock rate is set properly at a boot time on all Tegra's, thanks.

  reply	other threads:[~2019-04-16 13:44 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-15 14:54 [PATCH v2 00/19] NVIDIA Tegra devfreq improvements and Tegra20/30 support Dmitry Osipenko
2019-04-15 14:54 ` [PATCH v2 01/19] PM / devfreq: tegra: Fix kHz to Hz conversion Dmitry Osipenko
2019-04-16  1:45   ` Chanwoo Choi
2019-04-16 13:24     ` Dmitry Osipenko
2019-04-15 14:54 ` [PATCH v2 02/19] PM / devfreq: tegra: Replace readl-writel with relaxed versions Dmitry Osipenko
2019-04-17  1:02   ` Chanwoo Choi
2019-04-15 14:54 ` [PATCH v2 03/19] PM / devfreq: tegra: Don't ignore clk errors Dmitry Osipenko
2019-04-16  1:52   ` Chanwoo Choi
2019-04-16 13:42     ` Dmitry Osipenko
2019-04-15 14:54 ` [PATCH v2 04/19] PM / devfreq: tegra: Don't set EMC clock rate to maximum on probe Dmitry Osipenko
2019-04-16  1:59   ` Chanwoo Choi
2019-04-16 13:44     ` Dmitry Osipenko [this message]
2019-04-15 14:54 ` [PATCH v2 05/19] PM / devfreq: tegra: Replace write memory barrier with the read barrier Dmitry Osipenko
2019-04-16  8:00   ` Chanwoo Choi
2019-04-16 13:57     ` Dmitry Osipenko
2019-04-17  0:55       ` Chanwoo Choi
2019-04-15 14:54 ` [PATCH v2 06/19] PM / devfreq: tegra: Fix missed error checking on devfreq initialization failure Dmitry Osipenko
2019-04-16  2:32   ` Chanwoo Choi
2019-04-16 14:29     ` Dmitry Osipenko
2019-04-17  1:01       ` Chanwoo Choi
2019-04-15 14:54 ` [PATCH v2 07/19] PM / devfreq: tegra: Register clk notifier in the end of driver's probe Dmitry Osipenko
2019-04-15 14:54 ` [PATCH v2 08/19] PM / devfreq: tegra: Remove OPP entries on driver removal Dmitry Osipenko
2019-04-15 14:54 ` [PATCH v2 09/19] PM / devfreq: tegra: Change interrupt request order Dmitry Osipenko
2019-04-15 14:54 ` [PATCH v2 10/19] PM / devfreq: tegra: Drop primary interrupt handler Dmitry Osipenko
2019-04-16  5:56   ` Chanwoo Choi
2019-04-16 15:23     ` Dmitry Osipenko
2019-04-17  0:31       ` Chanwoo Choi
2019-04-15 14:54 ` [PATCH v2 11/19] PM / devfreq: tegra: De-initialize properly on driver's probe error Dmitry Osipenko
2019-04-16  6:21   ` Chanwoo Choi
2019-04-15 14:54 ` [PATCH v2 12/19] PM / devfreq: tegra: Avoid inconsistency of current frequency value Dmitry Osipenko
2019-04-16  7:15   ` Chanwoo Choi
2019-04-16 15:40     ` Dmitry Osipenko
2019-04-17  0:35       ` Chanwoo Choi
2019-04-15 14:54 ` [PATCH v2 13/19] PM / devfreq: tegra: Mark ACTMON's governor as immutable Dmitry Osipenko
2019-04-16  7:17   ` Chanwoo Choi
2019-04-15 14:55 ` [PATCH v2 14/19] PM / devfreq: tegra: Move governor registration to driver's probe Dmitry Osipenko
2019-04-16  7:30   ` Chanwoo Choi
2019-04-15 14:55 ` [PATCH v2 15/19] PM / devfreq: tegra: Synchronize IRQ after masking it in hardware Dmitry Osipenko
2019-04-16  7:41   ` Chanwoo Choi
2019-04-16 15:42     ` Dmitry Osipenko
2019-04-15 14:55 ` [PATCH v2 16/19] PM / devfreq: tegra: Reconfigure hardware on governor's restart Dmitry Osipenko
2019-04-15 14:55 ` [PATCH v2 17/19] PM / devfreq: tegra: Support Tegra30 Dmitry Osipenko
2019-04-16  7:48   ` Chanwoo Choi
2019-04-16 15:49     ` Dmitry Osipenko
2019-04-17  0:28       ` Chanwoo Choi
2019-04-15 14:55 ` [PATCH v2 18/19] PM / devfreq: tegra: Enable COMPILE_TEST for the driver Dmitry Osipenko
2019-04-16  7:43   ` Chanwoo Choi
2019-04-16 15:52     ` Dmitry Osipenko
2019-04-17  0:27       ` Chanwoo Choi
2019-04-15 14:55 ` [PATCH v2 19/19] PM / devfreq: Introduce driver for NVIDIA Tegra20 Dmitry Osipenko
2019-04-16  8:31   ` Chanwoo Choi
2019-04-16 16:11     ` Dmitry Osipenko
2019-04-17  0:26       ` Chanwoo Choi
2019-04-17  9:36         ` Dmitry Osipenko

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