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Wed, 20 Feb 2019 23:21:54 -0800 From: Joseph Lo To: Thierry Reding , Jonathan Hunter , Daniel Lezcano , Thomas Gleixner Subject: [PATCH V7 0/8] Add CPUidle support for Tegra210 Date: Thu, 21 Feb 2019 15:21:42 +0800 Message-ID: <20190221072150.4395-1-josephl@nvidia.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-NVConfidentiality: public DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1550733723; bh=st7nuvHajE224HVxf7ADaWWardkDkTUas6YE9wNoIK8=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: MIME-Version:X-NVConfidentiality:Content-Transfer-Encoding: Content-Type; b=qQG4Bt7Inb4l++iGuYA7hqFWCZ+7kMCtiH4zU+PIzovpZMIbRTSs9zZ3Ql8YTibyY hqrrOnbGjkeePg2OUZoNRwledE5xYkQEB6VGYYI8clxOXtQeZnjZvKJA8T4CLtOSLm +aNnB3Rt1MegUSlXlq2mr5dMO5wz6HdMAu0sG7NzS25PWEbzkTtKA0SfVZlp+D7/YF i5O2cdvC3kT/pDx15qE1XDq3mg/Bvfw0y48XeNVZwZJzrHQ8rTMjU3dB6dBK9QER2b ZDqlDh2SMeDQJx5j7+lIGKyvbIKzD92b8rGlrZY9IP156UjlUstSLKZgtX3/whoLaa aj9nnT/z6s7wQ== X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190220_232157_449742_4DC5F868 X-CRM114-Status: GOOD ( 11.62 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-tegra@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Joseph Lo Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP This patch series adds CPUidle support for Tegra210, which supports cpu-sleep state 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 V7: * kconfig fix for 'depends on ARM || ARM64' * move suspend/resume to clkevt * refine the usage of the macro of TIMER_OF_DECLARE * update the 'entry/exit-latency-us' properties in the idle-states node * add one patch for Shield platform support 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: tegra: fix timer node for Tegra210 arm64: tegra: add CPU idle states properties for Tegra210 arm64: tegra: Enable CPU idle support for Jetson TX1 arm64: tegra: Enable CPU idle support for Smaug arm64: tegra: Enable CPU idle support for Shield .../bindings/timer/nvidia,tegra210-timer.txt | 36 ++ .../arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 6 + .../arm64/boot/dts/nvidia/tegra210-p2894.dtsi | 6 + arch/arm64/boot/dts/nvidia/tegra210-smaug.dts | 7 + arch/arm64/boot/dts/nvidia/tegra210.dtsi | 33 +- drivers/clocksource/Kconfig | 3 +- drivers/clocksource/timer-tegra20.c | 370 ++++++++++++------ drivers/soc/tegra/Kconfig | 1 + include/linux/cpuhotplug.h | 1 + 9 files changed, 348 insertions(+), 115 deletions(-) create mode 100644 Documentation/devicetree/bindings/timer/nvidia,tegra210-timer.txt