Messages in this thread | | | Subject | Re: [PATCH 4/5] clk: mediatek: Add subsystem clocks of MT8173 | From | James Liao <> | Date | Fri, 22 May 2015 14:03:10 +0800 |
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Hi Daniel,
On Fri, 2015-05-22 at 12:22 +0800, Daniel Kurtz wrote: > On Thu, May 21, 2015 at 3:12 PM, James Liao <jamesjj.liao@mediatek.com> wrote: > > Most multimedia subsystem clocks will be accessed by multiple > > drivers, so it's a better way to manage these clocks in CCF. > > This patch adds clock support for MM, IMG, VDEC, VENC and VENC_LT > > subsystems. > > Is there a reason why this patch (or patch set) does not also include > definitions for the SCP_SYS, AUDIO and MFG_SYS clocks?
Clocks of SCP_SYS is a workaround in our previous internal implementation. It should be replaced with new mtk-scpsys driver which implemented in pm_domain framework because they are used to power on/off subsystem domains.
I had discussed with Sascha, and he said it not worth the overhead of CCF for clocks that are not shared by different units. As I know AUDIO and MFG clocks are only used by their own drivers. So I don't include them in this patch.
Best regards,
James
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