Messages in this thread | | | Date | Sat, 06 Jul 2013 12:47:08 +0100 | From | Jonathan Cameron <> | Subject | Re: Issue with porting i2c driver to k3.10 (iio) |
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On 07/04/2013 05:19 PM, Greg KH wrote: > On Thu, Jul 04, 2013 at 04:16:43PM +0300, Oleksandr Kravchenko wrote: >> Hi All, >> >> I wrote i2c driver for APDS-9300 light sensor in drivers/misc, but I have some >> questions regarding upstreaming of it. >> 1. It works properly in kernel-3.4, but it works very slow in kernel-3.10 (on >> mutex and i2c operations, particulary on mutex_lock() and i2c_smbus_read_data >> ()). Does anyone know why this issue may be occurred? > > What is "slow"? Have you run 'perf' on the driver to see where it is > spending time? > >> 2. Can I send this driver without using Industrial I/O framework? > > No, why would you even want to?
Looks like a fairly standard light sensor so drivers/iio/light.
Actually very close in design to some of the TAOS parts such as those supported by the tsl2563 driver if you want a reference driver to compare with.
Jonathan
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