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From: Dmitry Osipenko <digetx@gmail.com>
To: Daniel Lezcano <daniel.lezcano@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>,
Joseph Lo <josephl@nvidia.com>,
Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org,
Nicolas Chauvet <kwizart@gmail.com>
Subject: [PATCH v3 0/8] NVIDIA Tegra clocksource driver improvements
Date: Fri, 24 May 2019 18:32:45 +0300 [thread overview]
Message-ID: <20190524153253.28564-1-digetx@gmail.com> (raw)
Hello,
This series primarily unifies the driver code across all Tegra SoC
generations. In a result the clocksources are allocated per-CPU on
older Tegra's and have a higher rating than the arch-timer, the newer
Tegra210 is getting support for microsecond clocksource and the driver's
code is getting much cleaner. Note that arch-timer usage is discouraged on
all Tegra's due to the time jitter caused by the CPU frequency scaling.
The series was extensively tested on Tegra20 and Tegra30.
Changelog:
v3: Fixed compilation on ARM64. Turned out that it doesn't have the
delay-timer, thanks to Nicolas Chauvet for the report.
Added new "Support COMPILE_TEST universally" patch for better
compile-test coverage.
v2: Rebased on recent linux-next. Now all of #ifdef's are removed from the
code due to the recent patch that generalized persistent clocksource.
Couple other minor cosmetic changes.
Dmitry Osipenko (8):
clocksource/drivers/tegra: Support per-CPU timers on all Tegra's
clocksource/drivers/tegra: Unify timer code
clocksource/drivers/tegra: Reset hardware state on init
clocksource/drivers/tegra: Replace readl/writel with relaxed versions
clocksource/drivers/tegra: Release all IRQ's on request_irq() error
clocksource/drivers/tegra: Minor code clean up
clocksource/drivers/tegra: Use SPDX identifier
clocksource/drivers/tegra: Support COMPILE_TEST universally
drivers/clocksource/Kconfig | 4 +-
drivers/clocksource/timer-tegra20.c | 276 +++++++++++++---------------
2 files changed, 127 insertions(+), 153 deletions(-)
--
2.21.0
next reply other threads:[~2019-05-24 15:35 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-24 15:32 Dmitry Osipenko [this message]
2019-05-24 15:32 ` [PATCH v3 1/8] clocksource/drivers/tegra: Support per-CPU timers on all Tegra's Dmitry Osipenko
2019-05-24 15:32 ` [PATCH v3 2/8] clocksource/drivers/tegra: Unify timer code Dmitry Osipenko
2019-05-24 15:32 ` [PATCH v3 3/8] clocksource/drivers/tegra: Reset hardware state on init Dmitry Osipenko
2019-05-24 15:32 ` [PATCH v3 4/8] clocksource/drivers/tegra: Replace readl/writel with relaxed versions Dmitry Osipenko
2019-05-24 15:32 ` [PATCH v3 5/8] clocksource/drivers/tegra: Release all IRQ's on request_irq() error Dmitry Osipenko
2019-05-24 15:32 ` [PATCH v3 6/8] clocksource/drivers/tegra: Minor code clean up Dmitry Osipenko
2019-05-24 15:32 ` [PATCH v3 7/8] clocksource/drivers/tegra: Use SPDX identifier Dmitry Osipenko
2019-05-24 15:32 ` [PATCH v3 8/8] clocksource/drivers/tegra: Support COMPILE_TEST universally Dmitry Osipenko
2019-05-31 8:26 ` [PATCH v3 0/8] NVIDIA Tegra clocksource driver improvements Peter De Schrijver
2019-05-31 12:33 ` Dmitry Osipenko
2019-05-31 20:31 ` Daniel Lezcano
2019-06-01 13:00 ` Dmitry Osipenko
2019-06-03 7:17 ` Peter De Schrijver
2019-06-03 11:14 ` Dmitry Osipenko
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