From: Joseph Lo <josephl@nvidia.com>
To: Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>
Cc: linux-tegra@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Joseph Lo <josephl@nvidia.com>
Subject: [PATCH V6 0/7] Add CPUidle support for Tegra210
Date: Sat, 2 Feb 2019 00:16:47 +0800 [thread overview]
Message-ID: <20190201161654.18315-1-josephl@nvidia.com> (raw)
This patch series adds CPUidle support for Tegra210, which supports
power-down state (C7) for CPU cores. And due to arch timer cannot work
across CPU core power-down and power on reset signal event. We introduce
Tegra210 timer driver to work as clock event device. So it can be the
wake-up source of CPU cores when they idled in the power-down state.
Fix in V6:
* refine the timer defines in the timer driver (PATCH 2)
* add ack tags from Jon Hunter.
Fixed in V5:
* Just resend this whole series again with timer and Tegra maintainers
included
Fixed in V4:
* merge timer-tegra210.c into timer-tegra20.c
* add a new patch to select TEGRA_TIMER by default for Tegra210
Fixed in V3:
* use timer-of API for Tegra210 timer driver
Fixed in V2:
* list all the timer IRQs in the binding doc and dts file
* add error clean-up code in timer driver
* add entry-latency-us and exit-latency-us properties for idle-states
DT node
Joseph Lo (7):
dt-bindings: timer: add Tegra210 timer
clocksource: tegra: add Tegra210 timer support
soc/tegra: default select TEGRA_TIMER for Tegra210
arm64: dts: tegra210: fix timer node
arm64: dts: tegra210: add CPU idle states properties
arm64: dts: tegra210-p2180: Enable CPU idle support
arm64: dts: tegra210-smaug: Enable CPU idle support
.../bindings/timer/nvidia,tegra210-timer.txt | 36 ++
.../arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 6 +
arch/arm64/boot/dts/nvidia/tegra210-smaug.dts | 7 +
arch/arm64/boot/dts/nvidia/tegra210.dtsi | 33 +-
drivers/clocksource/Kconfig | 2 +-
drivers/clocksource/timer-tegra20.c | 371 +++++++++++++-----
drivers/soc/tegra/Kconfig | 1 +
include/linux/cpuhotplug.h | 1 +
8 files changed, 350 insertions(+), 107 deletions(-)
create mode 100644 Documentation/devicetree/bindings/timer/nvidia,tegra210-timer.txt
--
2.20.1
WARNING: multiple messages have this Message-ID (diff)
From: Joseph Lo <josephl@nvidia.com>
To: Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
"Thomas Gleixner" <tglx@linutronix.de>
Cc: linux-tegra@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Joseph Lo <josephl@nvidia.com>
Subject: [PATCH V6 0/7] Add CPUidle support for Tegra210
Date: Sat, 2 Feb 2019 00:16:47 +0800 [thread overview]
Message-ID: <20190201161654.18315-1-josephl@nvidia.com> (raw)
This patch series adds CPUidle support for Tegra210, which supports
power-down state (C7) for CPU cores. And due to arch timer cannot work
across CPU core power-down and power on reset signal event. We introduce
Tegra210 timer driver to work as clock event device. So it can be the
wake-up source of CPU cores when they idled in the power-down state.
Fix in V6:
* refine the timer defines in the timer driver (PATCH 2)
* add ack tags from Jon Hunter.
Fixed in V5:
* Just resend this whole series again with timer and Tegra maintainers
included
Fixed in V4:
* merge timer-tegra210.c into timer-tegra20.c
* add a new patch to select TEGRA_TIMER by default for Tegra210
Fixed in V3:
* use timer-of API for Tegra210 timer driver
Fixed in V2:
* list all the timer IRQs in the binding doc and dts file
* add error clean-up code in timer driver
* add entry-latency-us and exit-latency-us properties for idle-states
DT node
Joseph Lo (7):
dt-bindings: timer: add Tegra210 timer
clocksource: tegra: add Tegra210 timer support
soc/tegra: default select TEGRA_TIMER for Tegra210
arm64: dts: tegra210: fix timer node
arm64: dts: tegra210: add CPU idle states properties
arm64: dts: tegra210-p2180: Enable CPU idle support
arm64: dts: tegra210-smaug: Enable CPU idle support
.../bindings/timer/nvidia,tegra210-timer.txt | 36 ++
.../arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 6 +
arch/arm64/boot/dts/nvidia/tegra210-smaug.dts | 7 +
arch/arm64/boot/dts/nvidia/tegra210.dtsi | 33 +-
drivers/clocksource/Kconfig | 2 +-
drivers/clocksource/timer-tegra20.c | 371 +++++++++++++-----
drivers/soc/tegra/Kconfig | 1 +
include/linux/cpuhotplug.h | 1 +
8 files changed, 350 insertions(+), 107 deletions(-)
create mode 100644 Documentation/devicetree/bindings/timer/nvidia,tegra210-timer.txt
--
2.20.1
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next reply other threads:[~2019-02-01 16:16 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-01 16:16 Joseph Lo [this message]
2019-02-01 16:16 ` [PATCH V6 0/7] Add CPUidle support for Tegra210 Joseph Lo
2019-02-01 16:16 ` [PATCH V6 1/7] dt-bindings: timer: add Tegra210 timer Joseph Lo
2019-02-01 16:16 ` Joseph Lo
2019-02-01 16:16 ` Joseph Lo
2019-02-01 16:16 ` [PATCH V6 2/7] clocksource: tegra: add Tegra210 timer support Joseph Lo
2019-02-01 16:16 ` Joseph Lo
2019-02-01 16:16 ` Joseph Lo
2019-02-01 16:31 ` Jon Hunter
2019-02-01 16:31 ` Jon Hunter
2019-02-01 16:31 ` Jon Hunter
2019-02-08 13:23 ` Joseph Lo
2019-02-08 13:23 ` Joseph Lo
2019-02-08 13:23 ` Joseph Lo
2019-02-13 8:55 ` Daniel Lezcano
2019-02-13 8:55 ` Daniel Lezcano
2019-02-13 9:08 ` Joseph Lo
2019-02-13 9:08 ` Joseph Lo
2019-02-13 9:08 ` Joseph Lo
2019-02-15 15:14 ` Daniel Lezcano
2019-02-15 15:14 ` Daniel Lezcano
2019-02-18 9:01 ` Joseph Lo
2019-02-18 9:01 ` Joseph Lo
2019-02-18 9:01 ` Joseph Lo
2019-02-18 9:39 ` Daniel Lezcano
2019-02-18 9:39 ` Daniel Lezcano
2019-02-19 9:00 ` Joseph Lo
2019-02-19 9:00 ` Joseph Lo
2019-02-19 9:00 ` Joseph Lo
2019-02-19 9:33 ` Daniel Lezcano
2019-02-19 9:33 ` Daniel Lezcano
2019-02-01 16:16 ` [PATCH V6 3/7] soc/tegra: default select TEGRA_TIMER for Tegra210 Joseph Lo
2019-02-01 16:16 ` Joseph Lo
2019-02-01 16:16 ` [PATCH V6 4/7] arm64: dts: tegra210: fix timer node Joseph Lo
2019-02-01 16:16 ` Joseph Lo
2019-02-01 16:16 ` [PATCH V6 5/7] arm64: dts: tegra210: add CPU idle states properties Joseph Lo
2019-02-01 16:16 ` Joseph Lo
2019-02-15 15:47 ` Daniel Lezcano
2019-02-18 9:21 ` Joseph Lo
2019-02-18 9:21 ` Joseph Lo
2019-02-01 16:16 ` [PATCH V6 6/7] arm64: dts: tegra210-p2180: Enable CPU idle support Joseph Lo
2019-02-01 16:16 ` Joseph Lo
2019-02-01 16:16 ` [PATCH V6 7/7] arm64: dts: tegra210-smaug: " Joseph Lo
2019-02-01 16:16 ` Joseph Lo
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