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a guest May 19th, 2019 72 Never
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  1. node:
  2.     i2c {
  3.         compatible = "i2c-gpio";
  4.         gpios = <&gpio 19 GPIO_ACTIVE_HIGH
  5.              &gpio 15 GPIO_ACTIVE_HIGH
  6.             >;
  7.         #address-cells = <1>;
  8.         #size-cells = <0>;
  9.  
  10.         pcf8563: pcf8563@51 {
  11.             compatible = "nxp,pcf8563";
  12.             reg = <0x51>;
  13.             #clock-cells = <0>;
  14.         };
  15.     };
  16.  
  17.  
  18. dmesg:
  19. [   10.199764] i2c /dev entries driver
  20. [   10.207325] i2c-gpio i2c: using pins 19 (SDA) and 15 (SCL)
  21. [   10.219102] Loading modules backported from Linux version v4.19.32-0-g3a2156c839c7
  22. [   10.226834] Backport generated by backports.git v4.19.32-1-0-g1c4f7569
  23. [   10.236599] ip_tables: (C) 2000-2006 Netfilter Core Team
  24. [   10.251365] nf_conntrack version 0.5.0 (2048 buckets, 8192 max)
  25. [   10.302703] rtc-pcf8563 0-0051: pcf8563_write_block_data: err=-6 addr=0e, data=03
  26. [   10.310360] rtc-pcf8563 0-0051: pcf8563_probe: write error
  27. [   10.315963] rtc-pcf8563: probe of 0-0051 failed with error -5
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