Hello, I've been trying to figure out how to get sound on the headphone outputs. AFAICT, A20 supports I2S and S/PDIF but these are for external audio components, while I only need the internal headphone amp. I've seen that the audio codec has been added in 4.4 but it is disabled in the .dts file used in my kernel. I've enabled it and re-compiled the dtb, and after reboot I loaded the sun4i-codec module but still I have no success.
The problem: alsa does not show the device, also in /dev/snd there's only the USB audio card I've been using so far (which I'd love to get rid of). dmesg also does not mention anything about the audio-codec. I'm sure there's something simple I'm missing, the question is just: what? Some information: root@alarmaster /boot # uname -a Linux alarmaster 4.8.1-2-ARCH #1 SMP Sat Oct 8 15:03:46 MDT 2016 armv7l GNU/Linux root@alarmaster /boot # lsmod|grep snd snd_soc_pcm 5489 0 snd_soc_s3c_dma 1531 1 snd_soc_pcm snd_soc_core 151946 3 sun4i_codec,snd_soc_pcm,snd_soc_s3c_dma snd_pcm_dmaengine 5600 1 snd_soc_core ac97_bus 1838 1 snd_soc_core snd_usb_audio 141947 0 snd_usbmidi_lib 20465 1 snd_usb_audio snd_hwdep 6292 1 snd_usb_audio snd_rawmidi 23170 1 snd_usbmidi_lib snd_seq_device 4852 1 snd_rawmidi snd_pcm 95325 4 snd_soc_pcm,snd_usb_audio,snd_pcm_dmaengine,snd_soc_core snd_timer 22629 1 snd_pcm root@alarmaster /boot # lsmod Module Size Used by snd_soc_pcm 5489 0 snd_soc_s3c_dma 1531 1 snd_soc_pcm sun4i_codec 12356 0 snd_soc_core 151946 3 sun4i_codec,snd_soc_pcm,snd_soc_s3c_dma snd_pcm_dmaengine 5600 1 snd_soc_core ac97_bus 1838 1 snd_soc_core ccm 7895 3 usb_f_ecm 6613 2 usb_f_rndis 15906 2 u_ether 12644 2 usb_f_ecm,usb_f_rndis ipt_MASQUERADE 1223 1 nf_nat_masquerade_ipv4 2957 1 ipt_MASQUERADE iptable_nat 1924 1 nf_nat_ipv4 5381 1 iptable_nat nf_nat 17482 2 nf_nat_masquerade_ipv4,nf_nat_ipv4 xt_tcpudp 2322 8 nf_conntrack_ipv4 14210 2 nf_defrag_ipv4 1620 1 nf_conntrack_ipv4 xt_conntrack 3007 1 nf_conntrack 103452 5 nf_conntrack_ipv4,nf_nat_masquerade_ipv4,xt_conntrack,nf_nat_ipv4,nf_nat iptable_filter 1929 1 arc4 1943 2 ath9k_htc 56999 0 snd_usb_audio 141947 0 ath9k_common 28242 1 ath9k_htc snd_usbmidi_lib 20465 1 snd_usb_audio ath9k_hw 438363 2 ath9k_htc,ath9k_common snd_hwdep 6292 1 snd_usb_audio snd_rawmidi 23170 1 snd_usbmidi_lib evdev 12539 0 snd_seq_device 4852 1 snd_rawmidi snd_pcm 95325 4 snd_soc_pcm,snd_usb_audio,snd_pcm_dmaengine,snd_soc_core snd_timer 22629 1 snd_pcm ath 21859 3 ath9k_htc,ath9k_hw,ath9k_common mac80211 417547 1 ath9k_htc axp20x_pek 3651 0 dwmac_sunxi 2638 0 stmmac_platform 5932 1 dwmac_sunxi cfg80211 254986 4 ath9k_htc,mac80211,ath,ath9k_common stmmac 82035 3 stmmac_platform,dwmac_sunxi rfkill 19399 3 cfg80211 sun4i_ts 4456 0 sun4i_ss 16538 0 sun4i_lradc_keys 3478 0 spi_sun4i 4571 0 sunxi_wdt 3769 0 uio_pdrv_genirq 3591 0 uio 9341 1 uio_pdrv_genirq sch_fq_codel 9160 8 libcomposite 44779 16 usb_f_ecm,usb_f_rndis ip_tables 12937 2 iptable_filter,iptable_nat x_tables 18965 5 ip_tables,iptable_filter,xt_tcpudp,ipt_MASQUERADE,xt_conntrack Thanks, Thomas -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
