关于sgtl5000 声卡驱动的设备树配置

请参考下面的wiki网站是否有帮助？
processors.wiki.ti.com/.../Sitara_Linux_Audio_DAC_Example

[ 2.189063] sgtl5000 0-000a: Failed to get mclock: -2
[ 2.194895] omap_rtc 44e3e000.rtc: setting system clock to 2000-01-01 00:16:19 UTC (946685779)
[ 2.203706] i2c 0-000a: Driver sgtl5000 requests probe deferral
[ 2.212779] ALSA device list:
[ 2.215779] No soundcards found.
[ 2.319931] kjournald starting. Commit interval 5 seconds
[ 2.326907] EXT3-fs (mmcblk0p2): using internal journal
[ 2.333460] EXT3-fs (mmcblk0p2): recovery complete
[ 2.338274] EXT3-fs (mmcblk0p2): mounted filesystem with ordered data mode
[ 2.345540] VFS: Mounted root (ext3 filesystem) on device 179:2.
[ 2.353543] devtmpfs: mounted
[ 2.357083] Freeing unused kernel memory: 256K (c0836000 - c0876000)
Mount failed for selinuxfs on /sys/fs/selinux: No such file or directory
[ 2.535119] random: init urandom read with 53 bits of entropy available
[ 2.772883] init: plymouth-upstart-bridge main process (813) terminated with status 1
[ 2.780861] init: plymouth-upstart-bridge main process ended, respawning
[ 2.917525] init: plymouth-upstart-bridge main process (824) terminated with status 1
[ 2.925597] init: plymouth-upstart-bridge main process ended, respawning
[ 2.941008] init: ureadahead main process (816) terminated with status 5
[ 3.003366] init: plymouth-upstart-bridge main process (829) terminated with status 1
[ 3.011322] init: plymouth-upstart-bridge main process ended, respawning

Ubuntu 14.04.5 LTS localhost.localdomain ttyS0

localhost login: [ 4.571450] Adding 524284k swap on /SWAP.swap. Priority:-1 extents:136 across:678348k SS
[ 6.423016] sgtl5000 0-000a: Failed to get mclock: -2
[ 6.445136] sgtl5000 0-000a: Failed to get mclock: -2
[ 6.481362] sgtl5000 0-000a: Failed to get mclock: -2
[ 7.242547] sgtl5000 0-000a: Failed to get mclock: -2
[ 7.459166] sgtl5000 0-000a: Failed to get mclock: -2
[ 7.524406] sgtl5000 0-000a: Failed to get mclock: -2
[ 8.143949] sgtl5000 0-000a: Failed to get mclock: -2
[ 8.408538] sgtl5000 0-000a: Failed to get mclock: -2



这个log的内容，源码下的飞思卡尔codec 驱动似乎和am335的设备树配置不一样

请问用的是哪个版本的processor SDK? 设备树是怎么配置的？

hi Shine,目前用的版本是evm-01.00.00.03.

设备树配置如下：
sound {
compatible = "fsl,imx-audio-sgtl5000";
ti,model = "AM335x-EVMSK";
ti,audio-codec = <&sgtl5000>;
ti,mcasp-controller = <&mcasp0>;
ti,codec-clock-rate = <24000000>;
ti,audio-routing =
"Mic Jack", "MIC3L";
};

clocks{
clk_24M: codec_clock {
compatible = "fixed-clock";
clock-output-name = "clk_24M";
#clock-cells = <0>;
clock-frequency = <24000000>;
//gpios = <&gpio4 26 1>;
};

&i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins>;

status = "okay";
clock-frequency = <400000>;
sgtl5000: sgtl5000@12{
compatible = "fsl,sgtl5000";
reg = <0x12>;
clocks = <&clk_24M>;
VDDA-supply = <&vaux2_reg>;
VDDIO-supply = <&vaux2_reg>;
VDDD-supply = <&vbat>;

};

};


mcasp0_pins: mcasp0_pins {
pinctrl-single,pins = <
0x1ac (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* rmii1_ref_clk.mcasp0_ahclkx */
0x190 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_crs.mcasp0_aclkx */
0x194 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_rxerr.mcasp0_fsx */
0x198 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_col.mcasp0_axr0 */
0x1a8 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* rmii1_ref_clk.mcasp0_axr1 */
>;
};

mcasp0_pins_sleep: mcasp0_pins_sleep {
pinctrl-single,pins = <
0x1ac (PIN_OUTPUT_PULLDOWN | MUX_MODE0)
0x190 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)
0x194 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)
0x198 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)
0x1a8 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)
>;
};


*******************************************************


[ 2.122875] davinci_evm sound: ASoC: no source widget found for MIC3L
[ 2.129348] davinci_evm sound: ASoC: Failed to add route MIC3L -> direct -> Mic Jack
[ 2.139239] ydx evm probe ok
[ 2.142620] cpu cpu0: of_pm_voltdm_notifier_register: Fail calculating voltage latency[950000<->1260000]:-22
[ 2.211717] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6
[ 2.217857] davinci_mdio 4a101000.mdio: no live phy, scanning all
[ 2.224401] davinci_mdio: probe of 4a101000.mdio failed with error -5
[ 2.231936] cpsw 4a100000.ethernet: Detected MACID = 10:08:2c:09:c8:61
[ 2.253129] cpsw 4a100000.ethernet: cpsw: Detected MACID = 10:08:2c:09:c8:63
[ 2.261797] omap_rtc 44e3e000.rtc: setting system clock to 2000-01-01 01:19:11 UTC (946689551)
[ 2.273688] ALSA device list:
[ 2.276690] #0: AM335x-EVMSK
******************************************
现在遇到了新的问题，声卡出现了。我只需要mic功能，但是添加失败了

补充一下：还修改了davinci-evm.c内容
static const struct of_device_id davinci_evm_dt_ids[] = {
{
.compatible = "fsl,imx-audio-sgtl5000",
.data = &evm_dai_sgtl5000,
},
{
.compatible = "ti,da830-evm-audio",
.data = &evm_dai_tlv320aic3x,
},
{
.compatible = "ti,beaglebone-black-audio",
.data = &evm_dai_tda998x_hdmi,
},
{
.compatible = "ti,dra7xx-evm-audio",
.data = (void *) &dra7xx_evm_link,
},
{ /* sentinel */ }
};
static struct snd_soc_dai_link evm_dai_sgtl5000 = {
.name = "sgtl5000",
.stream_name = "SGTL5000",
.codec_dai_name = "sgtl5000",
.ops = &evm_ops,
.init = evm_aic3x_init,
.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
SND_SOC_DAIFMT_IB_NF,
};