Fwd: dss2 and dsi

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I have a question on the intended use of pan_display v. the
update_window ioctl in dss2.  I'm using a dsi panel and it seems like
the only way I can get new data out to the display is by calling
display->update.  The only place that seems to be called is from a
couple of the ioctls, mainly update_window.  Is the intention that you
use update_window to compose the screen?  Android uses pan_display to
flip between a front and back copy of the frame buffer, and if it's
available on the hardware, to send a partial update.  On the dss2
framework those calls never cause anything to be sent to the dsi
panel.  Should we be calling the update_window ioctl?


Rebecca
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