On Friday 15 April 2016 08:44 PM, Jon Hunter wrote:
On 15/04/16 15:12, Laxman Dewangan wrote:
All CSI pads are lined to single IO rail.
I agree with this and from the data-sheet I see the rail that powers the
CSI (and DSI) interfaces is called AVDD_DSI_CSI. But again, in the DT
document you are referring to csia, csib, csic, csid, csie, csif as
pins, but these don't appear to be physical pins, and this appears to be
more of a software means to control power to the various csi_x pins.
It seems to me that each of the existing CSI_A_xxx pins/pads should be
mapped to or register with the appropriate power-down control and when
all pads are set to inactive this then triggers the power-down of all
the CSI_A_xxx pads.
I used pins as this is the property from pincon generic so that I can
use the generic implementation.
Here, I will not go to the pin level control as HW does not support pin
level control.
I will say the unit should be interface level. Should we say
IO_GROUP_CSIA, IO_GROUP_CSIB etc?
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