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cpufreq: imx6q: add of_init_opp_table 

Add a routine check to see if the platform supplied the OPP table.
Incase there's no OPP table exist, it will try to initialise it.

It's been tested on iMX6SL board where the platform doesn't have
an OPP table.

Signed-off-by: John Tobias <john.tobias.ph@gmail.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
John Tobias 2013-12-19 22:56:28 -08:00 committed by Rafael J. Wysocki
parent 1d0eaae9b5
commit 20b7cbe298
1 changed files with 17 additions and 4 deletions
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21
drivers/cpufreq/imx6q-cpufreq.c
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@ -195,12 +195,25 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev)
goto put_node;
}
/* We expect an OPP table supplied by platform */
/*
* We expect an OPP table supplied by platform.
* Just, incase the platform did not supply the OPP
* table, it will try to get it.
*/
num = dev_pm_opp_get_opp_count(cpu_dev);
if (num < 0) {
ret = num;
dev_err(cpu_dev, "no OPP table is found: %d\n", ret);
goto put_node;
ret = of_init_opp_table(cpu_dev);
if (ret < 0) {
dev_err(cpu_dev, "failed to init OPP table: %d\n", ret);
goto put_node;
}
num = dev_pm_opp_get_opp_count(cpu_dev);
if (num < 0) {
ret = num;
dev_err(cpu_dev, "no OPP table is found: %d\n", ret);
goto put_node;
}
}
ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table);