how to support a audio chip (cs4344),has no iic or spi control interface,using iis interface

[jony_oy]

how to design a audio driver of cs4344 chip using i.mx6 platform.the chip has no control interface. and we must force it output using iis interface

[jony_oy]

the problem has solved,we must modify the file asic.c in kernel

[simonvanveerdeg]

I'm also try to get cs4344 chip working om my imx6DL with kernel 3.10.53

What do you change on the kernel to get this working.

I already added sound/soc/codecs/cs4344.c and also sound/soc/fsl/imx-cs4344.c

It is registered in my kernel, but i don,t get audio out of it.

[johnson_jl]

Same issue, try to use CS4344 under Android 4.4.3, but not success.

Any comments?

[igorpadykov]

Hi Jony,

for hardware connections one can use as example WM8962

included in SPF-27392 rev.C3.pdf of Sabre SDB schematic.

As for software please look at i.MX_6Dual6Quad_BSP_Porting_Guide.pdf

Chapter 8 Porting Audio Codecs to a Custom Board.

It is included in Linux Doc bundle below

L3.0.35_4.1.0_LINUX_DOCS

Also check cs42888.c in SDK:

"MX6_PLATFORM_SDK "

http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=i.MX6Q&nodeId=018rH3ZrDRB24A&fpsp=1&t...

Best regards

chip

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