diff options
| author | Lukasz Luba <lukasz.luba@arm.com> | 2017-05-04 12:34:31 +0100 |
|---|---|---|
| committer | Zhang Rui <rui.zhang@intel.com> | 2017-05-05 15:54:45 +0800 |
| commit | e34cab4cd1f98b4daed5bc98fe727e63f8dbf4e4 (patch) | |
| tree | 0150fecad849ea961220d7002dedae0bbc672cb4 /drivers/thermal | |
| parent | 39da7c509acff13fc8cb12ec1bb20337c988ed36 (diff) | |
| download | linux-e34cab4cd1f98b4daed5bc98fe727e63f8dbf4e4.tar.bz2 | |
thermal: devfreq_cooling: refactor code and add get_voltage function
Move the code which gets the voltage for a given frequency.
This code will be resused in few places.
Acked-by: Javi Merino <javi.merino@kernel.org>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Diffstat (limited to 'drivers/thermal')
| -rw-r--r-- | drivers/thermal/devfreq_cooling.c | 45 |
1 files changed, 28 insertions, 17 deletions
diff --git a/drivers/thermal/devfreq_cooling.c b/drivers/thermal/devfreq_cooling.c index 4bf4ad58cffd..af9d32837a3a 100644 --- a/drivers/thermal/devfreq_cooling.c +++ b/drivers/thermal/devfreq_cooling.c @@ -164,27 +164,12 @@ freq_get_state(struct devfreq_cooling_device *dfc, unsigned long freq) return THERMAL_CSTATE_INVALID; } -/** - * get_static_power() - calculate the static power - * @dfc: Pointer to devfreq cooling device - * @freq: Frequency in Hz - * - * Calculate the static power in milliwatts using the supplied - * get_static_power(). The current voltage is calculated using the - * OPP library. If no get_static_power() was supplied, assume the - * static power is negligible. - */ -static unsigned long -get_static_power(struct devfreq_cooling_device *dfc, unsigned long freq) +static unsigned long get_voltage(struct devfreq *df, unsigned long freq) { - struct devfreq *df = dfc->devfreq; struct device *dev = df->dev.parent; unsigned long voltage; struct dev_pm_opp *opp; - if (!dfc->power_ops->get_static_power) - return 0; - opp = dev_pm_opp_find_freq_exact(dev, freq, true); if (PTR_ERR(opp) == -ERANGE) opp = dev_pm_opp_find_freq_exact(dev, freq, false); @@ -202,9 +187,35 @@ get_static_power(struct devfreq_cooling_device *dfc, unsigned long freq) dev_err_ratelimited(dev, "Failed to get voltage for frequency %lu\n", freq); - return 0; } + return voltage; +} + +/** + * get_static_power() - calculate the static power + * @dfc: Pointer to devfreq cooling device + * @freq: Frequency in Hz + * + * Calculate the static power in milliwatts using the supplied + * get_static_power(). The current voltage is calculated using the + * OPP library. If no get_static_power() was supplied, assume the + * static power is negligible. + */ +static unsigned long +get_static_power(struct devfreq_cooling_device *dfc, unsigned long freq) +{ + struct devfreq *df = dfc->devfreq; + unsigned long voltage; + + if (!dfc->power_ops->get_static_power) + return 0; + + voltage = get_voltage(df, freq); + + if (voltage == 0) + return 0; + return dfc->power_ops->get_static_power(df, voltage); } |