- 19 9月, 2013 1 次提交
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由 Sudeep KarkadaNagesha 提交于
Commit cdc58d60 "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: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Tested-by: NShawn Guo <shawn.guo@linaro.org> Signed-off-by: NSudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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- 26 8月, 2013 1 次提交
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由 Sascha Hauer 提交于
For changing the cpu frequency the i.MX6q has to be switched to some intermediate clock during the PLL reprogramming. The driver tries to be clever to keep the enable count correct but gets it wrong. If the cpufreq is increased it calls clk_disable_unprepare twice on pll2_pfd2_396m. This puts all other devices which get their clock from pll2_pfd2_396m into a nonworking state. Fix this by removing the clk enabling/disabling altogether since the clk core will do this automatically during a reparent. Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de> Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org>
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- 21 8月, 2013 1 次提交
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由 Sudeep KarkadaNagesha 提交于
Now that the cpu device registration initialises the of_node(if available) appropriately for all the cpus, parsing here is redundant. This patch removes all DT parsing and uses cpu->of_node instead. Acked-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NViresh Kumar <viresh.kumar@linaro.org> Signed-off-by: NSudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
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- 24 6月, 2013 1 次提交
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由 Viresh Kumar 提交于
PRECHANGE and POSTCHANGE notifiers must be called in groups, i.e either both should be called or both shouldn't be. In case we have started PRECHANGE notifier and found an error, we must call POSTCHANGE notifier with freqs.new = freqs.old to guarantee that sequence of calling notifiers is complete. This patch fixes it. This also moves PRECHANGE notifier down so that we call it just before starting frequency transition. Acked-by: NShawn Guo <shawn.guo@linaro.org> Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org>
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- 02 4月, 2013 1 次提交
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由 Viresh Kumar 提交于
policy->cpus contains all online cpus that have single shared clock line. And their frequencies are always updated together. Many SMP system's cpufreq drivers take care of this in individual drivers but the best place for this code is in cpufreq core. This patch modifies cpufreq_notify_transition() to notify frequency change for all cpus in policy->cpus and hence updates all users of this API. Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org> Acked-by: NStephen Warren <swarren@nvidia.com> Tested-by: NStephen Warren <swarren@nvidia.com> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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- 23 2月, 2013 1 次提交
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由 Wei Yongjun 提交于
In case of error, the function devm_regulator_get() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: NViresh Kumar <viresh.kumar@linaro.org> Acked-by: NShawn Guo <shawn.guo@linaro.org> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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- 09 2月, 2013 1 次提交
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由 Shawn Guo 提交于
Add an imx6q-cpufreq driver for Freescale i.MX6Q SoC to handle the hardware specific frequency and voltage scaling requirements. The driver supports module build and is instantiated by the platform device/driver mechanism, so that it will not be instantiated on other platforms, as IMX is built with multiplatform support. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Reviewed-by: NViresh Kumar <viresh.kumar@linaro.org> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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