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Date: Wed, 25 Mar 2020 01:43:32 +0300 From: Dmitry Osipenko <digetx@...il.com> To: Thierry Reding <thierry.reding@...il.com>, Jonathan Hunter <jonathanh@...dia.com>, Peter De Schrijver <pdeschrijver@...dia.com>, "Rafael J. Wysocki" <rjw@...ysocki.net>, Daniel Lezcano <daniel.lezcano@...aro.org>, Michał Mirosław <mirq-linux@...e.qmqm.pl>, Jasper Korten <jja2000@...il.com>, David Heidelberg <david@...t.cz>, Peter Geis <pgwipeout@...il.com> Cc: linux-pm@...r.kernel.org, linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH v1 0/3] Enable LP2 CPUIDLE state on NVIDIA Tegra30 Hello, This series enables LP2 CPU idling state on Tegra30. Previously, Michał Mirosław reported that this wasn't working on ASUS Transformer device and we found that replicating the Transformer's downstream kernel behavior (in regards to the firmware) helps. Later on Michał told that LP2 works without the firmware changes using a different kernel version / config, we don't know for sure what was the cause of the original problem. This series makes the TF firmware changes that are known to work well in regards to LP2 idling on all devices and then the LP2 idling state is enabled. Please review and apply, thanks in advance. Dmitry Osipenko (3): ARM: tegra: Initialize r0 register for firmware wake-up firmware: trusted_foundations: Different way of L2 cache enabling after LP2 suspend cpuidle: tegra: Support CPU cluster power-down state on Tegra30 arch/arm/mach-tegra/pm.c | 4 ++++ arch/arm/mach-tegra/reset-handler.S | 7 ++++++- drivers/cpuidle/cpuidle-tegra.c | 1 - drivers/firmware/trusted_foundations.c | 21 ++++++++++++++++++-- include/linux/firmware/trusted_foundations.h | 1 + 5 files changed, 30 insertions(+), 4 deletions(-) -- 2.25.1
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