Re: [PATCH-v5 2/5] i2c: pxa: enable/disable i2c module across msg xfer

2015-08-05 Thread Vaibhav Hiremath
On Wednesday 05 August 2015 04:16 PM, Shubhrajyoti Datta wrote: hi , On Tue, Jul 21, 2015 at 6:11 PM, Vaibhav Hiremath wrote: From: Yi Zhang Enable i2c module/unit before transmission and disable when it finishes. why? It's because the i2c bus may be disturbed if the slave device, typicall

Re: [PATCH-v5 2/5] i2c: pxa: enable/disable i2c module across msg xfer

2015-08-05 Thread Shubhrajyoti Datta
hi , On Tue, Jul 21, 2015 at 6:11 PM, Vaibhav Hiremath wrote: > From: Yi Zhang > > Enable i2c module/unit before transmission and disable when it > finishes. > > why? > It's because the i2c bus may be disturbed if the slave device, > typically a touch, powers on. Why should that be an issue? Is

[PATCH-v5 2/5] i2c: pxa: enable/disable i2c module across msg xfer

2015-07-21 Thread Vaibhav Hiremath
From: Yi Zhang Enable i2c module/unit before transmission and disable when it finishes. why? It's because the i2c bus may be disturbed if the slave device, typically a touch, powers on. As we do not want to break slave mode support, this patch introduces DT property to control disable of the I2