linux-kernel - [PATCH 2/3] ARM: exynos_defconfig: Enable devfreq thermal integration

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Message-Id: <20200117123448.13807-2-m.szyprowski@samsung.com>
Date:   Fri, 17 Jan 2020 13:34:47 +0100
From:   Marek Szyprowski <m.szyprowski@...sung.com>
To:     linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Marek Szyprowski <m.szyprowski@...sung.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>
Subject: [PATCH 2/3] ARM: exynos_defconfig: Enable devfreq thermal
 integration

Panfrost driver provides a devfreq driver for the Mali GPU and allows to
scale GPU core frequency. Enable support for devfreq thermal integration
to enable cooling of GPU thermal zone by reducing GPU core frequency.

This fixes following warning during boot on Exynos5422-based Odroid XU4:

panfrost 11800000.gpu: [drm:panfrost_devfreq_init] Failed to register cooling device

Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
---
 arch/arm/configs/exynos_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig
index c05263de08a5..d80dbdaf00f8 100644
--- a/arch/arm/configs/exynos_defconfig
+++ b/arch/arm/configs/exynos_defconfig
@@ -155,6 +155,7 @@ CONFIG_SENSORS_NTC_THERMISTOR=y
 CONFIG_SENSORS_PWM_FAN=y
 CONFIG_SENSORS_INA2XX=y
 CONFIG_CPU_THERMAL=y
+CONFIG_DEVFREQ_THERMAL=y
 CONFIG_THERMAL_EMULATION=y
 CONFIG_WATCHDOG=y
 CONFIG_S3C2410_WATCHDOG=y
-- 
2.17.1