Hi, All
I found sun7i bananapi/pro audio codec disabled in device-tree, I make a patch:
--- a/arch/arm/boot/dts/sun7i-a20-bananapi.dts
+++ b/arch/arm/boot/dts/sun7i-a20-bananapi.dts
@@ -106,6 +106,10 @@
>;
};
+&codec {
+ status = "okay";
+};
+
&ehci0 {
status = "okay";
};
But Audio codec also did not work. During booting "ALSA device list" is empty,
after boot there is “cards” “card0” in /proc/asound. So, I change kernel
config:
--- a/target/linux/sunxi/config-4.4
+++ b/target/linux/sunxi/config-4.4
@@ -462,12 +462,29 @@ CONFIG_SMP=y
CONFIG_SMP_ON_UP=y
CONFIG_SND=y
CONFIG_SND_COMPRESS_OFFLOAD=y
+CONFIG_SND_DEBUG=y
+# CONFIG_SND_DEBUG_VERBOSE is not set
+CONFIG_SND_DMAENGINE_PCM=y
+CONFIG_SND_HWDEP=y
CONFIG_SND_JACK=y
+CONFIG_SND_MIXER_OSS=y
CONFIG_SND_PCM=y
+CONFIG_SND_PCM_OSS=y
+CONFIG_SND_PCM_TIMER=y
+CONFIG_SND_SEQUENCER=y
+CONFIG_SND_SEQUENCER_OSS=y
+CONFIG_SND_SEQ_DUMMY=y
CONFIG_SND_SOC=y
+CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM=y
CONFIG_SND_SOC_I2C_AND_SPI=y
+CONFIG_SND_SUN4I_CODEC=y
+CONFIG_SND_TIMER=y
# CONFIG_SND_USB is not set
+CONFIG_SND_VERBOSE_PRINTK=y
+# CONFIG_SND_VIRMIDI is not set
CONFIG_SOUND=y
+CONFIG_SOUND_OSS_CORE=y
+CONFIG_SOUND_OSS_CORE_PRECLAIM=y
CONFIG_SPARSE_IRQ=y
CONFIG_SPI=y
CONFIG_SPI_MASTER=y
After boot device list is not empty, but did not work.
Cheers
wei
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