30 May
2013
30 May
'13
7:07 p.m.
On Thu, May 30, 2013 at 10:37:42AM -0400, Tom Rini wrote:
On Thu, May 30, 2013 at 01:24:42AM +0300, Lubomir Popov wrote:
Tested on OMAP4/5 only, but should work on older OMAPs and derivatives as well.
- Rewritten i2c_read to operate correctly with all types of chips (old function could not read consistent data from some I2C slaves).
- Optimised i2c_write.
- New i2c_probe, optionally selectable via CONFIG_I2C_PROBE_WRITE, performs write access vs read. The old probe could hang the system under certain conditions (e.g. unconfigured pads).
- The read/write/probe functions try to identify unconfigured bus.
- Status functions now read irqstatus_raw as per TRM guidelines (except for OMAP243X and OMAP34XX).
- Driver now supports up to I2C5 (OMAP5).
Signed-off-by: Lubomir Popov lpopov@mm-sol.com
With CONFIG_I2C_PROBE_WRITE set: Tested-by: Tom Rini trini@ti.com on Beagleboard / Beagleboard xM
But, crap, breaks am335x_evm (and probably beaglebones, etc). I'll dig into this more to see if I can spot something obvious tomorrow.
--
Tom