Hi Andrew, Removing Bryan Freed from the loop as seems his email is not valid anymore. I already CC'ied Andrey which is doing the TPM bit in chromeos kernel.
On 21/02/17 17:29, Andrew Lunn wrote: > On Tue, Feb 21, 2017 at 03:44:59PM +0100, Enric Balletbo i Serra wrote: >> From: Bryan Freed <bfr...@chromium.org> >> >> When the I2C Infineon part is attached to an I2C adapter that imposes >> a size limitation, large requests will fail -EINVAL. >> Retry them with size backoff without re-issuing the 0x05 command >> as this appears to occasionally put the TPM in a bad state. > > Hi Enric > > Rather than trying small and smaller transfers, would it not be better > to get the i2c core to expose the quirk info about transfer limits? > Sounds a good idea to me, I guess the quirk info can be accessed with tpm_dev.client->adapter->quirks->max_read_len so I think we don't need to touch the i2c core. I'll propose a second version of the patch. Thanks, Enric > Andrew >
