jsorocil

Success!
 

% uname -a Linux miki 5.10.21-rockchip64 #21.02.3 SMP PREEMPT Mon Mar 8 01:05:08 UTC 2021 aarch64 aarch64 aarch64 GNU/Linux % dpkg -l | grep -v ^rc | grep -E "linux-dtb-current|linux-image-current" ii  linux-dtb-current-rockchip64            21.02.3                              arm64        Linux DTB, version 5.10.21-rockchip64 ii  linux-image-current-rockchip64          21.02.3                              arm64        Linux kernel, version 5.10.21-rockchip64   % aplay -l **** List of PLAYBACK Hardware Devices **** xcb_connection_has_error() returned true card 0: realtekrt5651co [realtek,rt5651-codec], device 0: ff890000.i2s-rt5651-aif1 rt5651-aif1-0 [ff890000.i2s-rt5651-aif1 rt5651-aif1-0]   Subdevices: 0/1   Subdevice #0: subdevice #0 card 1: hdmisound [hdmi-sound], device 0: ff8a0000.i2s-i2s-hifi i2s-hifi-0 [ff8a0000.i2s-i2s-hifi i2s-hifi-0]   Subdevices: 1/1   Subdevice #0: subdevice #0   % grep -iE "name|linux|version" /etc/armbian-release BOARD_NAME="NanoPi M4V2" DISTRIBUTION_CODENAME=focal VERSION=21.02.3 LINUXFAMILY=rockchip64
 
Patched .dts:

--- a/dt-bindings/clock/rk3399-cru.h +++ b/dt-bindings/clock/rk3399-cru.h @@ -19,6 +19,7 @@  #define ARMCLKB                9  /* sclk gates (special clocks) */ +#define SCLK_I2SOUT_SRC        64  #define SCLK_I2C1            65  #define SCLK_I2C2            66  #define SCLK_I2C3            67 diff --git a/rk3399-som-rk3399v2.dts b/rk3399-som-rk3399v2.dts index 2626e27..6c708f8 100644 --- a/rk3399-som-rk3399v2.dts +++ b/rk3399-som-rk3399v2.dts @@ -75,6 +75,35 @@              };          };      }; + +    rt5651_card: rt5651-sound { +        status = "okay"; +        compatible = "simple-audio-card"; +        pinctrl-names = "default"; +        pinctrl-0 = <&hp_det>; + +        simple-audio-card,name = "realtek,rt5651-codec"; +        simple-audio-card,format = "i2s"; +        simple-audio-card,mclk-fs = <256>; +        simple-audio-card,hp-det-gpio = <&gpio4 28 GPIO_ACTIVE_HIGH>; + +        simple-audio-card,widgets = +            "Microphone", "Mic Jack", +            "Headphone", "Headphone Jack"; +        simple-audio-card,routing = +            "Mic Jack", "micbias1", +            "IN2P", "Mic Jack", +            "IN3P", "Mic Jack", +            "Headphone Jack", "HPOL", +            "Headphone Jack", "HPOR"; + +        simple-audio-card,cpu { +            sound-dai = <&i2s1>; +        }; +        simple-audio-card,codec { +            sound-dai = <&rt5651>; +        }; +    };  };    // root/ node  &vcc3v3_sys { @@ -114,3 +143,44 @@          };      };  }; + +&i2c1 { +    status = "okay"; +    i2c-scl-rising-time-ns = <300>; +    i2c-scl-falling-time-ns = <15>; +    clock-frequency = <200000>; + +    rt5651: rt5651@1a { +        #sound-dai-cells = <0>; +        compatible = "realtek,rt5651"; +        reg = <0x1a>; +        clocks = <&cru SCLK_I2S_8CH_OUT>; +        clock-names = "mclk"; +        status = "okay"; +    }; +}; + +&i2s1 { +    assigned-clocks = <&cru SCLK_I2SOUT_SRC>; +    assigned-clock-parents = <&cru SCLK_I2S1_8CH>; +    pinctrl-names = "default"; +    pinctrl-0 = <&i2s_8ch_mclk>,<&i2s1_2ch_bus>; +    rockchip,playback-channels = <2>; +    rockchip,capture-channels = <2>; +    #sound-dai-cells = <0>; +    status = "okay"; +}; + +&pinctrl { +    i2s1 { +        i2s_8ch_mclk: i2s-8ch-mclk { +            rockchip,pins = <4 RK_PA0 1 &pcfg_pull_none>; +        }; +    }; + +    headphone { +        hp_det: hp-det { +            rockchip,pins = <4 28 RK_FUNC_GPIO &pcfg_pull_up>; +        }; +    }; +};
 
Funny thing is that clk_parent will change after audio player is started:

% cat /sys/kernel/debug/clk/clk_i2sout_src/clk_parent clk_i2s1 % mpv <audiofile> % cat /sys/kernel/debug/clk/clk_i2sout_src/clk_parent clk_i2s0

But in both cases sound works on my SoM-RK3399v2 SBC :)

Finally found the problem - HW "issue". My SPI flash is not soldered (no place on motherboard) - it is connected with wires which are (presumably) too long. Workaround is to reduce SPI speed in u-boot and Linux.
 
U-boot:

diff --git a/arch/arm/dts/rk3399-rockpro64.dtsi b/arch/arm/dts/rk3399-rockpro64.dtsi index 9bca258012..797dd80d38 100644 --- a/arch/arm/dts/rk3399-rockpro64.dtsi +++ b/arch/arm/dts/rk3399-rockpro64.dtsi @@ -677,7 +677,7 @@         flash@0 {                 compatible = "jedec,spi-nor";                 reg = <0>; -               spi-max-frequency = <10000000>; +               spi-max-frequency = <1000000>;         };  };
 
Linux:
Recompile your device tree with reduced SPI speed:

        flash@0 {                 compatible = "jedec,spi-nor";                 reg = <0>; -               spi-max-frequency = <10000000>; +               spi-max-frequency = <1000000>;         };