On Tuesday 26 April 2016 12:15:32 Peter Griffin wrote:

quoted

quoted

If not what would you recommend instead? 

It's still not clear to me what that bit in the syscfg register
is for. Given the error message about "sti-audio-clk-glue",
I suspect that this is actually a clock controller and that
it should be using the clock binding with a separate driver
instead of manipulating the regmap directly from the audio driver.

Luckily I do have the datasheet for the audio-glue sysconf register.

It says: -

[11:8] PCM_CLK_SEL: Selects the frequency synthesizer clock or the external
PCM clock for each channel.

The driver only ever sets this to 1 which selects the frequency synthesizer
clock. So the bitfield of the register which the driver is using (PCM_CLK_SEL)
is a clock mux.

Ok, that sounds like it could be either a really simple clock driver
with just a few lines, or integrated into an existing clock driver
if you already have one for this syscon node.

	Arnd