Re: [PATCH v4 3/4] clk: Hi6220: add stub clock driver
From: Stephen Boyd
Date: Wed Aug 12 2015 - 04:33:53 EST
On 08/04, Leo Yan wrote:
> On Hi6220, there have some clocks which can use mailbox channel to send
> messages to power controller to change frequency; this includes CPU, GPU
> and DDR clocks.
> For dynamic frequency scaling, firstly need write the frequency value to
> SRAM region, and then send message to mailbox to trigger power controller
> to handle this requirement. This driver will use syscon APIs to pass SRAM
> memory region and use common mailbox APIs for channels accessing.
> This init driver will support cpu frequency change firstly.
> Signed-off-by: Leo Yan <leo.yan@xxxxxxxxxx>
Applied to clk-next
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