On 01/08/15 20:04, Mark Brown wrote: > On Thu, Jan 08, 2015 at 05:42:57PM +0100, Jean-Francois Moine wrote: > >> Examples: > >> - for the Cubox: > >> audio-inputs = "i2s", "spdif"; > >> - for some other board with I2S on the pins 3 and 4 only: > >> audio-inputs = "none", "none", "i2s", "i2s"; > >> - for a fully wired TDA9983B (no driver yet): > >> audio-inputs = "i2s", "i2s", "i2s", "i2s", "spdif"; > > I think that mostly works, though I do wonder if we need a way to > specify the ordering of the pins (if you can make pin 3 be the first two > I2S channels for example)? Someone might choose a strange mapping for > board routing reasons for example. > If it helps, I've collated the pin assignments given in the various TDA datasheets that I can find: Chip> 9983B 9989 19988 19989 Mode> - S/PDIF I2S S/PDIF I2S S/PDIF I2S Pin AP0 WS - WS - WS - WS AP1 I2S#0 S/PDIF I2S#0 S/PDIF I2S#0 S/PDIF I2S#0 AP2 I2S#1 - - S/PDIF I2S#1 S/PDIF I2S#1 AP3 I2S#2 - - - I2S#2* MCLK - AP4 I2S#3 - - - I2S#3* - - AP5 MCLK - - - - - - AP6 S/PDIF - - - - - - AP7 AUX - - - - - - WS = I2S Word Select * Depends on package The 9983B differs from the other devices in that the I2S and S/PDIF functionality is not multiplexed onto various pins. Andrew -- 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
