From: Marek Szyprowski <m.szyprowski@samsung.com>
To: linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org
Cc: Marek Szyprowski <m.szyprowski@samsung.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Krzysztof Kozlowski <krzk@kernel.org>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Lukasz Luba <lukasz.luba@arm.com>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Subject: [PATCH 0/4] Restore big.LITTLE cpuidle driver for Exynos
Date: Tue, 16 Jun 2020 10:12:26 +0200 [thread overview]
Message-ID: <20200616081230.31198-1-m.szyprowski@samsung.com> (raw)
In-Reply-To: CGME20200616081248eucas1p168faa343ce333a28c8fd3cf9a6a58b3c@eucas1p1.samsung.com
The ARM big.LITTLE cpuidle driver has been enabled and tested on Samsung
Exynos 5420/5800 based Peach Pit/Pi Chromebooks and in fact it worked
only on those boards.
However, support for it was broken by the commit 833b5794e330 ("ARM:
EXYNOS: reset Little cores when cpu is up") and then never enabled in the
exynos_defconfig. This patchset provides the needed fix to the common
code and restores support for it. Thanks to Lukasz Luba who motivated me
to take a look into this issue.
Best regards
Marek Szyprowski
Samsung R&D Institute Poland
Patch summary:
Marek Szyprowski (4):
ARM: exynos: Apply little core workaround only under secure firmware
cpuidle: big.LITTLE: enable driver only on Peach-Pit/Pi Chromebooks
ARM: exynos_defconfig: Enable big.LITTLE cpuidle driver
ARM: multi_v7_defconfig: Enable big.LITTLE cpuidle driver
arch/arm/configs/exynos_defconfig | 1 +
arch/arm/configs/multi_v7_defconfig | 1 +
arch/arm/mach-exynos/mcpm-exynos.c | 10 +++++++---
drivers/cpuidle/cpuidle-big_little.c | 3 +--
4 files changed, 10 insertions(+), 5 deletions(-)
--
2.17.1
next parent reply other threads:[~2020-06-16 8:12 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20200616081248eucas1p168faa343ce333a28c8fd3cf9a6a58b3c@eucas1p1.samsung.com>
2020-06-16 8:12 ` Marek Szyprowski [this message]
[not found] ` <CGME20200616081249eucas1p151a8892ca0abfa3108955e1fc5054fc3@eucas1p1.samsung.com>
2020-06-16 8:12 ` [PATCH 1/4] ARM: exynos: Apply little core workaround only under secure firmware Marek Szyprowski
2020-06-17 16:26 ` Lukasz Luba
2020-06-22 17:19 ` Krzysztof Kozlowski
2020-06-29 8:54 ` Marek Szyprowski
2020-06-29 9:13 ` Krzysztof Kozlowski
[not found] ` <CGME20200629100230eucas1p1bf07ca4c84ba6be1fbdd80c45d077518@eucas1p1.samsung.com>
2020-06-29 10:02 ` [PATCH v2 1/4] ARM: exynos: MCPM: Restore big.LITTLE cpuidle support Marek Szyprowski
2020-06-29 11:05 ` Lukasz Luba
2020-06-29 18:28 ` Krzysztof Kozlowski
[not found] ` <CGME20200616081249eucas1p2ad165b545f265bec88a06270d55fce76@eucas1p2.samsung.com>
2020-06-16 8:12 ` [PATCH 2/4] cpuidle: big.LITTLE: enable driver only on Peach-Pit/Pi Chromebooks Marek Szyprowski
2020-06-22 17:19 ` Krzysztof Kozlowski
2020-06-24 10:05 ` Bartlomiej Zolnierkiewicz
2020-08-17 15:39 ` Krzysztof Kozlowski
2020-08-24 8:15 ` Daniel Lezcano
2020-08-24 8:26 ` Krzysztof Kozlowski
2020-08-24 9:14 ` Daniel Lezcano
[not found] ` <CGME20200616081250eucas1p2de7110898dad050866d78cb5d5120422@eucas1p2.samsung.com>
2020-06-16 8:12 ` [PATCH 3/4] ARM: exynos_defconfig: Enable big.LITTLE cpuidle driver Marek Szyprowski
2020-06-22 17:20 ` Krzysztof Kozlowski
2020-06-29 11:35 ` Marek Szyprowski
2020-06-24 10:06 ` Bartlomiej Zolnierkiewicz
[not found] ` <CGME20200616081250eucas1p2a98f8810962ddc692fa5588a74f911b3@eucas1p2.samsung.com>
2020-06-16 8:12 ` [PATCH 4/4] ARM: multi_v7_defconfig: " Marek Szyprowski
2020-06-24 10:06 ` Bartlomiej Zolnierkiewicz
2020-06-16 20:58 ` [PATCH 0/4] Restore big.LITTLE cpuidle driver for Exynos Anand Moon
2020-06-17 9:48 ` Marek Szyprowski
2020-06-17 10:40 ` Lukasz Luba
2020-06-17 10:57 ` Anand Moon
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