Audio Codec - ES8316 porting problem

wunlinglin — Fri, 26 Jan 2018 08:19:23 GMT

I'm porting ES8316 on imx6q now. Then I already porting driver done and use application to use audio codec, but I found I don't have MCLK signal on my scope.I already looked for information on internet and try to modify imx6qdl-sabresd.dtsi. But it still failed. Attachments are my used code. Please help me to solve this problem,thanks a lot.

pin connect

ES8316 iMX6_IO

I2C_DAT CSI0_DAT8

I2C_CLK CSI0_DAT9

MCLK GPIO_0

SDI CSI0_DAT5

SDO CSI0_DAT7

BCLK CSI0_DAT4

WCLK CSI0_DAT6

Re: Audio Codec - ES8316 porting problem

igorpadykov — Fri, 26 Jan 2018 11:44:14 GMT

Hi Ling

one can check record MX6QDL_PAD_GPIO_0__CCM_CLKO1 0x130b0

in dts file linux/arch/arm/boot/dts/imx6qdl-sabresd.dtsi

linux-imx.git - i.MX Linux Kernel

and clko configuration in clk-imx6q.c

linux-imx.git - i.MX Linux Kernel

in hardware check schematic for pad GPIO_0, GPIO_0_CLKO
p.3 spf-27392 i.MX6Q Sabre SD schematic
Schematics (1)
i.MX6_SABRE_SDP_DESIGNFILES
http://www.nxp.com/products/software-and-tools/hardware-development-tools/sabre-development-system/sabre-platform-for-smart-devices-based-on-the-i.mx-6-series:RDIMX6SABREPLAT?fpsp=1&tab=Design_Tools_Tab

Also one can attach jtag and check clko settings in register CCM_CCOSR.

Best regards
igor
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Audio Codec - ES8316 porting problem

Re: Audio Codec - ES8316 porting problem