From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lukasz Majewski Subject: [PATCH 1/8] thermal:cpu cooling:armada: Provide deferred probing for armada driver Date: Thu, 13 Nov 2014 18:02:38 +0100 Message-ID: <1415898165-27406-2-git-send-email-l.majewski@samsung.com> References: <1411547232-21493-1-git-send-email-l.majewski@samsung.com> <1415898165-27406-1-git-send-email-l.majewski@samsung.com> Return-path: In-reply-to: <1415898165-27406-1-git-send-email-l.majewski@samsung.com> Sender: linux-kernel-owner@vger.kernel.org To: Eduardo Valentin , Zhang Rui Cc: Ezequiel Garcia , Kuninori Morimoto , Linux PM list , Vincenzo Frascino , Bartlomiej Zolnierkiewicz , Lukasz Majewski , Nobuhiro Iwamatsu , Mikko Perttunen , Stephen Warren , Thierry Reding , Alexandre Courbot , linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, Lukasz Majewski List-Id: linux-tegra@vger.kernel.org When CPU freq is used as a thermal zone cooling device, one needs to wait until cpufreq subsystem is properly initialized. This code is similar to the one already available in imx_thermal.c file. Signed-off-by: Lukasz Majewski --- drivers/thermal/armada_thermal.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/thermal/armada_thermal.c b/drivers/thermal/armada_thermal.c index 9d1420a..1b5d15d 100644 --- a/drivers/thermal/armada_thermal.c +++ b/drivers/thermal/armada_thermal.c @@ -23,6 +23,7 @@ #include #include #include +#include #define THERMAL_VALID_MASK 0x1 @@ -280,6 +281,12 @@ static int armada_thermal_probe(struct platform_device *pdev) struct armada_thermal_priv *priv; struct resource *res; +#ifdef CONFIG_CPU_THERMAL + if (!cpufreq_get_current_driver()) { + dev_dbg(&pdev->dev, "no cpufreq driver!"); + return -EPROBE_DEFER; + } +#endif match = of_match_device(armada_thermal_id_table, &pdev->dev); if (!match) return -ENODEV; -- 2.0.0.rc2