* Matthijs van Duin <matthijsvanduin@xxxxxxxxx> [150128 13:46]: > On 26 January 2015 at 16:58, Tony Lindgren <tony@xxxxxxxxxxx> wrote: > > See earlier I was assuming copy paste issues from dm814x to dm816x > > Ahh, you thought the 816x was 814x-derived... yes I can imagine that > will have led to some confusion. > > > I'm pretty sure I verified the that the audio_pll_clk1 is hardwwired > > to 32KiHz by looking at it with a scope on the clkout pin. > > Yeah it comes straight from the "rtcdivider" so it'll produce > 0.0016384 * devosc. Not much about "rtcdivider" in the dm816x TRM.. > The global clock structure overview in the TRM (figure 2-6) actually > correctly marks the former-audio-fapll clocks (except audio5 := osc0, > yielding sysclk22 after divider) but you already need to know what the > hell is going on to recognize that. That seems to be in the dm814x TRM. OK so it looks like in mainline kernel drivers/clk/ti/fapll.c we can then fix the hardcoded value in ti_fapll_synth_recalc_rate() to return the rate of fd->clk_ref multiplied 0.0016384 instead of 32768. And we probably should add what you're explaining to the comments also to make some sense out of it :) Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
