The call to devfreq_add_device() tries to initialize frequency tables
for simple-dev. This can be a more efficient way of setting up
frequency tables in case there are multiple tables for a single device
depending on hardware version.
Make 'freq-tbl-khz' property an optional one so that probe doesn't
fail in its absence and devfreq_add_device() also gets a chance to
set up the freq table for simple-dev.
Change-Id: I96b5c2d4aef2085512d94dc6792f5ba2711de64b
Signed-off-by: Rohit Gupta <rohgup@codeaurora.org>
For certain implementation, device clock needs to be prepared before
rate voting taking effect. Add support for preparing device clock
during initialization.
Change-Id: Ib22e83952187118342ff2546d4c79d3970a288f9
Signed-off-by: Junjie Wu <junjiew@codeaurora.org>
This driver registers a devfreq device that allows devfreq governors to
scale the frequency of a device clock. This single driver can be used to
support multiple devices as long as those devices don't have a need or
mechanism to monitor their load and use clock APIs to control their
device/core clock.
If devices need to support device specific status monitoring, they could
extend this driver to allow registering device specific status monitoring
functions or write their own specific devfreq device driver.
Change-Id: Ie1797acf7b35cac6dc49428e270c23082634eb1e
Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
