Messages in this thread | | | Subject | Re: [RFT PATCH] regmap-i2c: Only use I2C_FUNC_I2C if val_bits == 8 | From | Guenter Roeck <> | Date | Sat, 25 Jun 2016 08:09:44 -0700 |
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On 06/25/2016 04:34 AM, Mark Brown wrote: > On Fri, Jun 24, 2016 at 07:53:53PM -0700, Guenter Roeck wrote: > >> On chips with a register value size of 16 bits, I2C block reads will >> typically not return the expected values. Instead, returned values >> are most likely undefined if an operation crosses a register boundary. > > No, this just isn't true in general - if a device has trouble with bulk > reads it needs to set use_sigle_rw in the config to disable them. > Device limitations with bulk reads are a per device thing and are > orthogonal to the value size, being more to do with the age and quality > of the register map implementation than anything else. >
Ok, thanks for letting me know. I'll try that.
Guenter
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