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| author | Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com> | 2013-09-10 19:59:47 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-09-19 03:53:43 +0200 |
| commit | b494b48dacb4dd848d76bc8871e55716486f0253 (patch) | |
| tree | 44d122a8bcf5d596578d9e97fdef92525cb40ede /drivers | |
| parent | cpufreq: cpufreq-cpu0: assign cpu_dev correctly to cpu0 device (diff) | |
| download | linux-b494b48dacb4dd848d76bc8871e55716486f0253.tar.xz linux-b494b48dacb4dd848d76bc8871e55716486f0253.zip | |
cpufreq: imx6q-cpufreq: assign cpu_dev correctly to cpu0 device
Commit cdc58d602d2e657602a90c190cbf745886c95977 "cpufreq: imx6q-cpufreq:
remove device tree parsing for cpu nodes" assumed the pdev->dev is set to
cpu0 device in the platform code. But it actually points to the virtual
cpufreq-cpu0 platform device which is not present in the device tree.
Most of the information needed by cpufreq is stored in cpu0 DT node.
So cpu_dev must point to cpu0 device.
This patch fixes the wrong assignment to cpu_dev.
Reported-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/cpufreq/imx6q-cpufreq.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c index 3e396543aea4..c3fd2a101ca0 100644 --- a/drivers/cpufreq/imx6q-cpufreq.c +++ b/drivers/cpufreq/imx6q-cpufreq.c @@ -7,6 +7,7 @@ */ #include <linux/clk.h> +#include <linux/cpu.h> #include <linux/cpufreq.h> #include <linux/delay.h> #include <linux/err.h> @@ -202,7 +203,11 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev) unsigned long min_volt, max_volt; int num, ret; - cpu_dev = &pdev->dev; + cpu_dev = get_cpu_device(0); + if (!cpu_dev) { + pr_err("failed to get cpu0 device\n"); + return -ENODEV; + } np = of_node_get(cpu_dev->of_node); if (!np) { |