Stephen Warren <swar...@wwwdotorg.org> writes: > On 05/18/2015 01:43 PM, Eric Anholt wrote: >> + init.flags = CLK_IS_ROOT; > > Is it possible to add clock parent information to the driver, so the > clocks are all hooked together into the correct tree, rather than all > looking like root clocks? > > One of the many reasons I didn't do anything FW-wise for the kernel was > the hope that such information would be forthcoming, and hence we could > have complete kernel drivers.
As far as I can tell, none of these clocks are the parent of any other. There's a layer of PLLs, then clockman almost always just dividing off of those. In response to a clockman request (which is what this property tag quickly maps to), only PLLH ever gets changed as a result of RPI_CLOCK_PIXEL. PLLH feeds the HDMI and VEC (SDTV). We don't have an SDTV clock for us to control through these interfaces, so there are no conflicts that I can see. Only two clockman clocks I see divide off of on other clockman clocks, and we don't have access to those.
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