On Thu, Jun 29, 2017 at 10:39 AM, gianluca gianlucarenzi@eurekelettronica.it wrote:
In the device-tree the sound node is so configured:
sound { compatible = "fsl,imx-audio-sgtl5000"; model = "imx6-ek360-sgtl5000"; ssi-controller = <&ssi1>; audio-codec = <&sgtl5000>; audio-routing = "MIC_IN", "Mic Jack", "Mic Jack", "Mic Bias", "Headphone Jack", "HP_OUT"; mux-int-port = <1>; mux-ext-port = <4>;
This should be mux-ext-port = <3>;
I do not know about the mux-int-port or mux-ext-port. The only thing I know is the hardware guy told me he routed the ssi (CLK and DAT) to:
AUD3_TXC_R (i2s_sclk) AUD3_TXD (i2s_din) AUD3_TXFS (i2s_lrclk) AUD3_RXD (i2s_dout) SYS_MCLK (GPIO_0_CLKO sys_mclk)
since you are using AUD3 pins.
So I configured the pinmux for audio in the following way:
pinctrl_audmux: audmuxgrp { fsl,pins = < /* SGTL5000 sys_mclk */ MX6QDL_PAD_GPIO_0__CCM_CLKO10x030b0 MX6QDL_PAD_CSI0_DAT4__AUD3_TXC 0x130b0 MX6QDL_PAD_CSI0_DAT5__AUD3_TXD 0x110b0 MX6QDL_PAD_CSI0_DAT6__AUD3_TXFS 0x130b0 MX6QDL_PAD_CSI0_DAT7__AUD3_RXD 0x130b0 >; };
Are the values correct for that?
They should be good.
How can I check or dump the SGTL5000 registers?
cat /sys/kernel/debug/regmap/xxx