nikkov

Hi, I need to help for understandable how set right clock hierarchy for i2s bus with external master-clock signal. This mode supported rockchip processors (RK3328, RK3399) but there are very small information how it can do. Today we have out of box in armbian for Nanopi Neo3 working I2S with master-clock from PLL, but I want change master-clock source from PLL to external signal. In souce and clock debugfs I find that I2S1 ("i2s1_pre") can be clocked from 4 sources: clk_i2s1_div, clk_i2s1_frac, clkin_i2s1, xin12m. By default parent for i2s1_pre set to clk_i2s1_div, which have parent cpll. Hence we must change parent for i2s1_pre to clkin_i2s1, but clock clkin_i2s1 not exists. OK, I added clkin_i2s1 through overlay: /dts-v1/; /plugin/; / { compatible = "friendlyelec,nanopi-neo3", "rockchip,rk3328"; fragment@0 { target-path = "/"; __overlay__ { clk_i2s1: clk_i2s1 { compatible = "fixed-clock"; #clock-cells = <0>; clock-output-names = "clk_i2s1"; clock-frequency = <22579200>; }; }; }; }; and I see clkin_i2s1 in clock summary (fragments😞 enable prepare protect duty hardware clock count count count rate accuracy phase cycle enable ------------------------------------------------------------------------------------------------------- xin24m 10 10 0 24000000 0 0 50000 Y pll_cpll 1 1 0 1200000000 0 0 50000 Y cpll 8 13 0 1200000000 0 0 50000 Y clk_i2s1_div 0 0 0 75000000 0 0 50000 N i2s1_pre 0 0 0 75000000 0 0 50000 Y clk_i2s1 0 0 0 75000000 0 0 50000 N i2s1_out 0 0 0 75000000 0 0 50000 N clk_i2s1_frac 0 0 0 3750000 0 0 50000 N clkin_i2s1 0 0 0 22579200 0 0 50000 Y clock i2s1 described in rk3328.dtsi: i2s1: i2s@ff010000 { compatible = "rockchip,rk3328-i2s", "rockchip,rk3066-i2s"; ... clocks = <&cru SCLK_I2S1>, <&cru HCLK_I2S1_8CH>; clock-names = "i2s_clk", "i2s_hclk"; ... }; And now I must set parent for i2s1_pre to clkin_i2s1. Сan anyone help me with this? I tried use assigned-clocks/assigned-clock-parents but unsuccessfull.

SPDIF may be enabled by simple overlay file with this content: /dts-v1/; /plugin/; / { compatible = "friendlyelec,nanopi-neo3", "rockchip,rk3328"; fragment@0 { target = <&spdif_out>; __overlay__ { status = "okay"; }; }; }; compile and install: sudo armbian-add-overlay spdif-out-enable.dts reboot and check: nik@nanopineo3:~$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: I2S [I2S], device 0: ff010000.i2s-pcm5102a-hifi pcm5102a-hifi-0 [ff010000.i2s-pcm5102a-hifi pcm5102a-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: SPDIF [SPDIF], device 0: ff030000.spdif-dit-hifi dit-hifi-0 [ff030000.spdif-dit-hifi dit-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0

Thank you for your time! If I understand correctly, I have to include my patch in one of this files: /build/patch/kernel/archive/sunxi-6.1/series.* or just put it to folder /build/patch/kernel/archive/sunxi-6.1/. Not a very clear approach, the previous one was more understandable, especially since the userpatches folder is still used.

Is this option used to create a patch and apply it at the same time? I've only used it for making patches, not for building the kernel. That is, to build the kernel with my patch, I have to use this command: ./compile.sh BOARD=nanopineo BRANCH=current kernel-patch,kernel ?

Hello, I try build kernel for NanopiNeo board with user kernel patch, but I don't understand with path needed put my patch. In previous version armbian's builds I just put files to userpatches/kernel/sunxi-current how it described in docs. But now with current version Armbian build system it's not working. I put my custom linux-sunxi-current.config to userpatches folder, my patch to userpatches/kernel/sunxi-current and try build kernel with command: ./compile.sh BOARD=nanopineo BRANCH=current kernel I see that linux-sunxi-current.config found and applied but not patch isn't.