I2C device driver names

[Matt Spinler]

Thanks.  I opened the following issues:

Power supply:  https://github.com/openbmc/openbmc/issues/651

MAX31785: https://github.com/openbmc/openbmc/issues/652

UCD90160: https://github.com/openbmc/openbmc/issues/653

RX8900CE: https://github.com/openbmc/openbmc/issues/654



On 10/6/2016 7:24 PM, Milton Miller II wrote:
>
> On 10/06/2016 about 06:43PM somewhere, Joel Stanley <joel at jms.id.au 
> <mailto:joel at jms.id.au>> wrote:
> >
> >On Fri, Oct 7, 2016 at 7:14 AM, Matt Spinler
> ><mspinler at linux.vnet.ibm.com <mailto:mspinler at linux.vnet.ibm.com>> wrote:
> >> Hi,
> >>
> >> As part of my work to generate a device tree from the machine
> >readable
> >> workbook XML, I need to create I2C device entries, which have the
> >compatible
> >> properties that need to be filled in.
> >>
> >> The following parts are present in the system I'm trying to build,
> >with
> >> firmware requirements to access them. I took a stab at the names.
> >Could
> >> someone doublecheck them and maybe comment on if a driver is
> >missing, or
> >> maybe if some upcoming work is known that will include it? I
> >didn't have
> >> much luck finding a lot of these in the
> >Documentation/devicetree/bindings
> >> directories.
>
> Unique to the i2c subsystem, i2c devices will also match when
> the vendor is different but the chip name portion matches.
>
> >
> >If they're not in the kernel tree it could mean there is not a driver
> >for them, or that they are supported as part of the trivial device
> >bindings.
> >
> >>
> >> PMBus Power supplies: ?
> >>
> >> MAX31785 fan controller: max,max31785
>
> Maxim for the vendor? see
> Documentation/devicetree/bindings/vendor-prefixes.txt
>
> >
> >Doesn't appear to be an upstream driver. Please open a ticket.
> >
> >>
> >> BMP280: bosch,bmp280
> >
> >Supported by the iio bmp280 driver.
> >
> >>
> >> TMP4523A temp sensor: ti,tmp423
> >
> >Supported by the tmp421 hwmon driver.
> >
> >>
> >> TMP275 temp sensor: ti,tmp275
> >
> >Documentation/devicetree/bindings/i2c/trivial-devices.txt
> >
> >Supported by the lm75 hwmon driver.
> >
> >> pca9552 IO expander: nxp,pca9552
> >
> >This appears to be a LED driver?
> >
> >There's a LED device driver called leds-pca955x.
>
> There is also a gpio driver for pca955[4567] in pca953x.c.
>
> >
> >>
> >> UCD90160 power sequencer: ti,ucd90160
> >
> >A kernel driver called ucd9000 appears to support similar chips.
> >Please open a ticket.
> >
> >>
> >> RX8900CE RTC: epson,rx8900ce
> >
> >No upstream driver. Please open a ticket.
> >
> >>
> >> 24c64 EEPROM: atmel,24c64
> >
> >LGTM.
> >
> >Cheers,
> >
> >Joel
> >
> >>
> >> There are also a handful of regulators, but so far I haven't heard
> >of any
> >> requirements to access them.
> >>
> >> Thanks.
>
>
>

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