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From: Dmitry Osipenko <digetx@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
	MyungJoo Ham <myungjoo.ham@samsung.com>,
	Kyungmin Park <kyungmin.park@samsung.com>,
	Chanwoo Choi <cw00.choi@samsung.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v5 13/20] PM / devfreq: tegra30: Reset boosting on startup
Date: Tue, 30 Jul 2019 19:22:29 +0300	[thread overview]
Message-ID: <20190730162236.6063-14-digetx@gmail.com> (raw)
In-Reply-To: <20190730162236.6063-1-digetx@gmail.com>

Governor could be stopped while boosting is active. We have assumption
that everything is reset on governor's restart, including the boosting
value, which was missed.

Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 drivers/devfreq/tegra30-devfreq.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/devfreq/tegra30-devfreq.c b/drivers/devfreq/tegra30-devfreq.c
index 762e17323095..6e8ae20c3bf1 100644
--- a/drivers/devfreq/tegra30-devfreq.c
+++ b/drivers/devfreq/tegra30-devfreq.c
@@ -684,6 +684,9 @@ static void tegra_actmon_configure_device(struct tegra_devfreq *tegra,
 {
 	u32 val = 0;
 
+	/* reset boosting on governor's restart */
+	dev->boost_freq = 0;
+
 	dev->avg_freq = clk_get_rate(tegra->emc_clock) / KHZ;
 	device_writel(dev, dev->avg_freq * ACTMON_SAMPLING_PERIOD,
 		      ACTMON_DEV_INIT_AVG);
-- 
2.22.0

  parent reply	other threads:[~2019-07-30 16:22 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-30 16:22 [PATCH v5 00/20] More improvements for Tegra30 devfreq driver Dmitry Osipenko
2019-07-30 16:22 ` [PATCH v5 01/20] PM / devfreq: tegra30: Change irq type to unsigned int Dmitry Osipenko
2019-07-30 16:22 ` [PATCH v5 02/20] PM / devfreq: tegra30: Keep interrupt disabled while governor is stopped Dmitry Osipenko
2019-07-30 16:22 ` [PATCH v5 03/20] PM / devfreq: tegra30: Handle possible round-rate error Dmitry Osipenko
2019-07-30 16:22 ` [PATCH v5 04/20] PM / devfreq: tegra30: Drop write-barrier Dmitry Osipenko
2019-07-30 16:22 ` [PATCH v5 05/20] PM / devfreq: tegra30: Set up watermarks properly Dmitry Osipenko
2019-07-30 16:22 ` [PATCH v5 06/20] PM / devfreq: tegra30: Tune up boosting thresholds Dmitry Osipenko
2019-07-30 16:22 ` [PATCH v5 07/20] PM / devfreq: tegra30: Fix integer overflow on CPU's freq max out Dmitry Osipenko
2019-07-30 16:22 ` [PATCH v5 08/20] PM / devfreq: tegra30: Ensure that target freq won't overflow Dmitry Osipenko
2019-07-30 16:22 ` [PATCH v5 09/20] PM / devfreq: tegra30: Use kHz units uniformly in the code Dmitry Osipenko
2019-07-30 16:22 ` [PATCH v5 10/20] PM / devfreq: tegra30: Reduce unnecessary interrupts activity Dmitry Osipenko
2019-07-30 16:22 ` [PATCH v5 11/20] PM / devfreq: tegra30: Use CPUFreq notifier Dmitry Osipenko
2019-07-30 16:22 ` [PATCH v5 12/20] PM / devfreq: tegra30: Move clk-notifier's registration to governor's start Dmitry Osipenko
2019-07-30 16:22 ` Dmitry Osipenko [this message]
2019-07-30 16:22 ` [PATCH v5 14/20] PM / devfreq: tegra30: Don't enable consecutive-down interrupt on startup Dmitry Osipenko
2019-07-30 16:22 ` [PATCH v5 15/20] PM / devfreq: tegra30: Constify structs Dmitry Osipenko
2019-07-30 16:22 ` [PATCH v5 16/20] PM / devfreq: tegra30: Include appropriate header Dmitry Osipenko
2019-07-30 16:22 ` [PATCH v5 17/20] PM / devfreq: tegra30: Increase sampling period to 16ms Dmitry Osipenko
2019-07-30 16:22 ` [PATCH v5 18/20] PM / devfreq: tegra30: Define ACTMON_DEV_CTRL_STOP Dmitry Osipenko
2019-07-31  0:37   ` Chanwoo Choi
2019-07-31 10:55     ` Dmitry Osipenko
2019-07-30 16:22 ` [PATCH v5 19/20] PM / devfreq: tegra30: Support variable polling interval Dmitry Osipenko
2019-07-30 16:22 ` [PATCH v5 20/20] PM / devfreq: tegra20/30: Add Dmitry as a maintainer Dmitry Osipenko

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