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From: ben@smart-cactus.org (Ben Gamari)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 04/12] ARM: Exynos: use generic cpufreq driver for Exynos5420
Date: Wed,  2 Dec 2015 22:19:19 +0100
Message-ID: <1449091167-20758-5-git-send-email-ben@smart-cactus.org> (raw)
In-Reply-To: <1449091167-20758-1-git-send-email-ben@smart-cactus.org>

From: Thomas Abraham <thomas.ab@samsung.com>

The new CPU clock type allows the use of generic arm_big_little_dt
cpufreq driver for Exynos5420.

Changes by Bartlomiej:
- split Exynos5420 support from the original patch
- disable cpufreq if big.LITTLE switcher support is enabled

Changes by Ben Gamari:
- rebase

Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Thomas Abraham <thomas.ab@samsung.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Javier Martinez Canillas <javier@osg.samsung.com> (Mon. 15:01)
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Ben Gamari <ben@smart-cactus.org>
---
 arch/arm/mach-exynos/exynos.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
index 1c47aee..818e6a0 100644
--- a/arch/arm/mach-exynos/exynos.c
+++ b/arch/arm/mach-exynos/exynos.c
@@ -230,6 +230,13 @@ static const struct of_device_id exynos_cpufreq_matches[] = {
 	{ .compatible = "samsung,exynos4212", .data = "cpufreq-dt" },
 	{ .compatible = "samsung,exynos4412", .data = "cpufreq-dt" },
 	{ .compatible = "samsung,exynos5250", .data = "cpufreq-dt" },
+	/*
+	 * FIXME: When big.LITTLE switcher is enabled system lockups during
+	 * ondemand governor stress testing (observed on ODROID-XU3 board).
+	 */
+#ifndef CONFIG_BL_SWITCHER
+	{ .compatible = "samsung,exynos5420", .data = "arm-bL-cpufreq-dt" },
+#endif
 	{ /* sentinel */ }
 };
 
-- 
2.6.2

  parent reply index

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-02 21:19 [PATCH v5 0/12] cpufreq: Add support for Exynos 5800, 5420, and 5422 Ben Gamari
2015-12-02 21:19 ` [PATCH 01/12] cpufreq: arm_big_little: add cluster regulator support Ben Gamari
2015-12-03  4:41   ` Anand Moon
2015-12-02 21:19 ` [PATCH 02/12] clk: samsung: exynos5420: add cpu clock configuration data and instantiate cpu clock Ben Gamari
2015-12-03  6:08   ` Krzysztof Kozlowski
2015-12-03 10:30     ` Ben Gamari
2015-12-04  2:25       ` Krzysztof Kozlowski
2015-12-02 21:19 ` [PATCH 03/12] ARM: dts: Exynos5420: add CPU OPP and regulator supply property Ben Gamari
2015-12-02 21:19 ` Ben Gamari [this message]
2015-12-02 21:19 ` [PATCH 05/12] clk: samsung: exynos5800: fix cpu clock configuration data Ben Gamari
2015-12-02 21:19 ` [PATCH 06/12] ARM: dts: Exynos5800: fix CPU OPP Ben Gamari
2015-12-02 21:19 ` [PATCH 07/12] ARM: dts: Exynos5422: fix OPP tables Ben Gamari
2015-12-02 21:19 ` [PATCH 08/12] ARM: Exynos: use generic cpufreq driver for Exynos5800 Ben Gamari
2015-12-02 21:19 ` [PATCH 09/12] ARM: dts: Exynos5420/5800: add cluster regulator supply properties Ben Gamari
2015-12-02 21:19 ` [PATCH 10/12] cpufreq: arm-big-little: accept operating-points-v2 nodes Ben Gamari
2015-12-02 21:19 ` [PATCH 11/12] cpufreq: arm-big-little: clarify frequency units Ben Gamari
2015-12-03 14:22   ` Jon Medhurst (Tixy)
2015-12-03 14:37     ` Ben Gamari
2015-12-02 21:19 ` [PATCH 12/12] cpufreq: arm-big-little: warn on invalid regulator Ben Gamari
2015-12-03  6:05 ` [PATCH v5 0/12] cpufreq: Add support for Exynos 5800, 5420, and 5422 Viresh Kumar
2015-12-03 10:26   ` Ben Gamari
2015-12-03 10:37     ` Viresh Kumar
2015-12-03 11:21       ` Ben Gamari
2015-12-03 11:25         ` Viresh Kumar
2015-12-07 21:19       ` Ben Gamari
2015-12-03 11:05   ` Sudeep Holla
2015-12-03 11:24     ` Viresh Kumar

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