From: Jesse Forgues <jesseco...@gmail.com>
Reply-To: "beagleboard@googlegroups.com" <beagleboard@googlegroups.com>
Date: Wednesday, June 18, 2014 at 3:49 PM
To: "beagleboard@googlegroups.com" <beagleboard@googlegroups.com>
Subject: Re: [beagleboard] Changing BB-BONE-AUDI-02-00A0 from McASP AXR2 to
AXR3
> True but the serializer seems to set the direction for us...
Just looked in /sound/soc/davinci/davinci_mcasp.c and the code sets the PDIR
register based on the contents of serial-dir so you are correct, there is no
need to set the pin I/O direction.
Regards,
John
>
>
> bone_audio_cape_audio_pins: pinmux_bone_audio_cape_audio_pins {
>
> pinctrl-single,pins = <
>
> 0x1ac 0x00 /* mcasp0_ahclkx, OUTPUT | MODE0 */
>
> 0x194 0x20 /* mcasp0_fsx, INPUT | MODE0 */
>
> 0x190 0x20 /* mcasp0_aclkx, INPUT | MODE0 */
>
> 0x198 0x20 /* mcasp0_axr0, INPUT | MODE0 */
>
> 0x1a8 0x20 /* mcasp0_axr1, INPUT | MODE0 */
>
> 0x19c 0x22 /* mcasp0_axr2, INPUT | MODE2 */
>
> 0x1a4 0x22 /* mcasp0_axr3, INPUT | MODE2 */
>
>> >;
>
>
>
> serial-dir = < /* 0: INACTIVE, 1: TX, 2: RX */
>
> 2 2 1 1
>
> 0 0 0 0
>
> 0 0 0 0
>
> 0 0 0 0
>
>> >;
>
> tx-num-evt = <1>;
>
> rx-num-evt = <1>;
>
> --
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