topic Re: TDF8546 i2c based audio amplifier | Custom Sabreauto based board in i.MX Processors

TDF8546 i2c based audio amplifier | Custom Sabreauto based board

soorajs — Tue, 17 Apr 2018 06:24:45 GMT

We have connected audio Amp to i2c1 on probing in u-boot we can see the address 6E of audio amplifier , but could not find any android driver on Internet to control this device through i2c .

Audio amplifier device connector
Audio Codec CS42888 same as Sabreauto also on same cpu pins as Sabreauto

By default there is no sound when audio track is played .
I think we have to select channel and few other configuration is required to be performed for audio amplifier to work .
Is there a kernel driver required for this or ?

Re: TDF8546 i2c based audio amplifier | Custom Sabreauto based board

igorpadykov — Tue, 17 Apr 2018 09:26:14 GMT

Hi Sooraj

seems it can be used without i2c initialization, if necessary on can add its

i2c init settings in probe function of CS42888 driver or create own driver using Porting Guide

document included in Linux Documentation on link

i.MX Software|NXP

I am not aware of TDF8546 drivers.

Best regards
igor
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Re: TDF8546 i2c based audio amplifier | Custom Sabreauto based board

soorajs — Tue, 17 Apr 2018 12:47:36 GMT

Hello Igor ,

audio amplifier can work without any software changes ?