[Skiboot] [PATCH 3/4] hdata/i2c: Ignore multi-port I2C devices
andrew.donnellan at au1.ibm.com
Fri Apr 27 16:21:17 AEST 2018
On 24/04/18 13:25, Oliver O'Halloran wrote:
> Recent FSP firmware builds add support for multi-port I2C devices such
> as the GPIO expanders used for the presence detect of OpenCAPI devices
> and the PCIe hotplug controllers used to power cycle PCIe slots on ZZ.
> The OpenCAPI driver inside of skiboot currently uses a platform-specific
> method to talk to the relevant I2C device rather than relying on HDAT
> since not all platforms correctly report the I2C devices (hello Zaius).
> Additionally the nature of multi-port devices require that we a device
> specific handler so that we generate the correct DT bindings. Currently
> we don't and there is no immediate need for this support so just ignore
> the multi-port devices for now.
> Signed-off-by: Oliver O'Halloran <oohall at gmail.com>
Acked-by: Andrew Donnellan <andrew.donnellan at au1.ibm.com>
Tested-by: Andrew Donnellan <andrew.donnellan at au1.ibm.com>
Andrew Donnellan OzLabs, ADL Canberra
andrew.donnellan at au1.ibm.com IBM Australia Limited
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