On Sat, 28 Sep 2013 16:27:19 +0200 Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxx> wrote: > Jean-Francois, > > I can confirm the following for CuBox: > > AU1_EXTCLK is connected to si5351 clkout 2. For the _current_ > (v3.12-rc1) dove-cubox.dts that means that you'll have to exchange > the properties for &i2c0/si5351/clkout[12]. If you leave it the way > it is, clkout2 is not allowed to change the pll inside si5351 and > only try to get close to the requested clk rate by using output > dividers. Would be great if you can provide a corresponding patch > for v3.12 (no need to Cc stable). > > Also, as you seem to push kirkwood-i2s DT forward, please get back > to clkout2 (<&si5351 2>) for the audio node as you did correctly in > the first place. > > With above changes, SPDIF_EN, and forcing kirkwood-i2s to always use > extclk, I can play SPDIF audio with 44k1 and 48k. Other rates could > also work, but my audio equipment ignores anything else. Sebastian, Thanks for your change. I can now get audio at 44.1, 32 and 22.05 kHz on HDMI with the external clock (via i2s, but s/pdif and other rates should work too). [snip] > What I am wondering here is, why you want to use i2s at all? On CuBox, > HDMI transmitter is connected to both i2s and spdif. IIRC, for the > transmitter it makes no difference if you provide i2s or spdif audio, > _but_ what you are loosing for sure is pass-through, i.e. sending > compressed AC3 directly. [snip] It seems that my patch about adding s/pdif to the kirkwood audio driver has not been accepted yet... -- Ken ar c'hentañ | ** Breizh ha Linux atav! ** Jef | http://moinejf.free.fr/ -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
