23c7b54ca1
When the devfreq driver and the governor driver are built as modules,
the call to devfreq_add_device() or governor_store() fails because the
governor driver is not loaded at the time the devfreq driver loads. The
devfreq driver has a build dependency on the governor but also should
have a runtime dependency. We need to make sure that the governor driver
is loaded before the devfreq driver.
This patch fixes this bug by adding a try_then_request_governor()
function. First tries to find the governor, and then, if it is not found,
it requests the module and tries again.
Fixes:
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|---|---|---|
| .. | ||
| event | ||
| devfreq-event.c | ||
| devfreq.c | ||
| exynos-bus.c | ||
| governor_passive.c | ||
| governor_performance.c | ||
| governor_powersave.c | ||
| governor_simpleondemand.c | ||
| governor_userspace.c | ||
| governor.h | ||
| Kconfig | ||
| Makefile | ||
| rk3399_dmc.c | ||
| tegra-devfreq.c | ||