Hi,
I want to config these pins for audio funtion:
AUDIO_MCLK → GPIO BB.00
DAP4_SCLK → GPIO J.07
DAP4_FS → GPIO J.04
DAP4_DIN → GPIO J.05
DAP4_DOUT → GPIO J.06
on L4T R32.1, I can modify “tegra210-porg-super-module-e2614.dtsi”
--- a/sources/hardware/nvidia/platform/t210/porg/kernel-dts/porg-platforms/tegra210-porg-super-module-e2614.dtsi
+++ b/sources/hardware/nvidia/platform/t210/porg/kernel-dts/porg-platforms/tegra210-porg-super-module-e2614.dtsi
@@ -28,7 +28,7 @@
>;
label = "I2S4_LRCLK", "I2S4_SDIN", "I2S4_SDOUT",
"I2S4_CLK", "AUDIO_MCLK", "AUD_RST";
- status = "disabled";
+ status = "okay";
};
};
then these pin are sfio.
$ sudo grep "Name:\|J:\|BB:" /sys/kernel/debug/tegra_gpio
[sudo] password for nvidia:
Name:Bank:Port CNF OE OUT IN INT_STA INT_ENB INT_LVL
J: 2:1 00 00 00 00 00 00 000000
BB: 6:3 00 00 00 00 00 00 000000
on L4T R32.2, I do the same thing. But these pins are still gpio.
$ sudo grep "Name:\|J:\|BB:" /sys/kernel/debug/tegra_gpio
[sudo] password for nvidia:
Name:Bank:Port CNF OE OUT IN INT_STA INT_ENB INT_LVL
J: 2:1 f0 00 00 00 00 00 000000
BB: 6:3 01 00 00 00 00 00 000000
How can I config these pins on L4T R32.2?
Thanks!