[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <1351079900-32236-3-git-send-email-hongbo.zhang@linaro.com>
Date: Wed, 24 Oct 2012 19:58:16 +0800
From: "hongbo.zhang" <hongbo.zhang@...aro.org>
To: linaro-dev@...ts.linaro.org, linux-kernel@...r.kernel.org,
linux-pm@...r.kernel.org
Cc: patches@...aro.org, linaro-kernel@...ts.linaro.org,
STEricsson_nomadik_linux@...t.st.com, kernel@...oocommunity.org,
"hongbo.zhang" <hongbo.zhang@...aro.com>
Subject: [PATCH V2 2/6] Thermal: make sure cpufreq cooling register after cpufreq driver
From: "hongbo.zhang" <hongbo.zhang@...aro.com>
The cpufreq works as a cooling device, so the cooling layer should check if the
cpufreq driver is initialized or not.
Signed-off-by: hongbo.zhang <hongbo.zhang@...aro.com>
---
drivers/thermal/cpu_cooling.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c
index b6b4c2a..7519a0b 100644
--- a/drivers/thermal/cpu_cooling.c
+++ b/drivers/thermal/cpu_cooling.c
@@ -354,6 +354,10 @@ struct thermal_cooling_device *cpufreq_cooling_register(
int ret = 0, i;
struct cpufreq_policy policy;
+ /* make sure cpufreq driver has been initialized */
+ if (!cpufreq_frequency_get_table(cpumask_any(clip_cpus)))
+ return ERR_PTR(-EPROBE_DEFER);
+
list_for_each_entry(cpufreq_dev, &cooling_cpufreq_list, node)
cpufreq_dev_count++;
--
1.7.11.3
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists