tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
cpufreq: tegra20: Use resource-managed API
Switch cpufreq-tegra20 driver to use resource-managed API.
This removes the need to get opp_table pointer using
dev_pm_opp_get_opp_table() in order to release OPP table that
was requested by dev_pm_opp_set_supported_hw(), making the code
a bit more straightforward.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
authored by
Dmitry Osipenko
and committed by
Viresh Kumar
763ec5da
5c8fe583
+22
-23
+22
-23
drivers/cpufreq/tegra20-cpufreq.c
+22
-23
drivers/cpufreq/tegra20-cpufreq.c
···
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return ret;
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}
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+
static void tegra20_cpufreq_put_supported_hw(void *opp_table)
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+
{
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dev_pm_opp_put_supported_hw(opp_table);
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+
}
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+
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static void tegra20_cpufreq_dt_unregister(void *cpufreq_dt)
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{
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platform_device_unregister(cpufreq_dt);
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}
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+
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static int tegra20_cpufreq_probe(struct platform_device *pdev)
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{
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struct platform_device *cpufreq_dt;
···
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return err;
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}
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err = devm_add_action_or_reset(&pdev->dev,
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tegra20_cpufreq_put_supported_hw,
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opp_table);
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if (err)
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return err;
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+
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cpufreq_dt = platform_device_register_simple("cpufreq-dt", -1, NULL, 0);
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err = PTR_ERR_OR_ZERO(cpufreq_dt);
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if (err) {
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dev_err(&pdev->dev,
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"failed to create cpufreq-dt device: %d\n", err);
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-
goto err_put_supported_hw;
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return err;
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}
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-
platform_set_drvdata(pdev, cpufreq_dt);
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-
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return 0;
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-
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err_put_supported_hw:
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dev_pm_opp_put_supported_hw(opp_table);
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-
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return err;
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-
}
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-
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static int tegra20_cpufreq_remove(struct platform_device *pdev)
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-
{
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struct platform_device *cpufreq_dt;
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struct opp_table *opp_table;
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cpufreq_dt = platform_get_drvdata(pdev);
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platform_device_unregister(cpufreq_dt);
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-
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opp_table = dev_pm_opp_get_opp_table(get_cpu_device(0));
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dev_pm_opp_put_supported_hw(opp_table);
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dev_pm_opp_put_opp_table(opp_table);
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+
err = devm_add_action_or_reset(&pdev->dev,
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tegra20_cpufreq_dt_unregister,
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cpufreq_dt);
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+
if (err)
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return err;
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return 0;
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}
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static struct platform_driver tegra20_cpufreq_driver = {
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.probe = tegra20_cpufreq_probe,
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-
.remove = tegra20_cpufreq_remove,
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.driver = {
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.name = "tegra20-cpufreq",
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},