Messages in this thread | | | From | Geert Uytterhoeven <> | Date | Mon, 12 Aug 2019 13:07:25 +0200 | Subject | Re: [PATCH] i2c/busses: Add i2c-icy for I2C on m68k/Amiga |
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Hi Max,
On Mon, Aug 12, 2019 at 12:43 PM Max Staudt <max@enpas.org> wrote: > On 08/12/2019 11:37 AM, Geert Uytterhoeven wrote: > >> + /* > >> + * The 2019 a1k.org PCBs have an LTC2990 at 0x4c, so start > >> + * it automatically once ltc2990 is modprobed. > >> + * > >> + * in0 is the voltage of the internal 5V power supply. > >> + * temp1 is the temperature inside the chip. > >> + * > >> + * Configuration 0x18 enables all sensors on this PCB: > >> + * # modprobe i2c-dev > >> + * # i2cset 0 0x4c 1 0x18 > > > > What's the reason for the i2cset command? > > It sets the sensor modes in the LTC2990 and enables the three sensors listed below. I should have clarified this. > > I tried to integrate this in the driver, but ltc2990 only allows reading this configuration out of a device tree. Is there a good way to fake a DT entry in the init function?
You can add platform_data support to the ltc2990 driver, and pass it through i2c_board_info.platform_data.
Gr{oetje,eeting}s,
Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
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