[PATCH] jbt6k74: Add support for QVGA.

Harald Welte laforge at openmoko.org
Mon Mar 26 19:31:39 CEST 2007

On Sat, Mar 24, 2007 at 03:22:43AM +0100, Stefan Schmidt wrote:
> Hello.
> This patch adds support for the QVGA fullscreen capabilities of the
> LCM.
> * Add proper register init.
> * Add a fourth state (normal-qvga)to the state machine.

there's some whitespace / coding style problem with the
sleep_to_normal_qvga() function, please fix this

> The second patch enabled the support with a hack. Switching through
> the SysFS state file does not work. It only reports me deep-standy all
> the time. Harald, had this worked for you in the past?

Yes, this has worked quite fine in the past.  Also, the suspend/resume
code path uses the state transitions...

> The biggest remeining problem is the that is does not work together
> correctly with the framebuffer driver. Setting it to 240x320 and use
> the timings from the data sheet did not work.
> Set the register via JTAG gives us better, but still not complete
> correct, picture. But set this values for the framebuffer does not
> give us the same results.

mh. if JTAG register setting gives better results, then it seems like
the mode switching code in s3c2410fb might have problems..

- Harald Welte <laforge at openmoko.org>          	        http://openmoko.org/
Software for the world's first truly open Free Software mobile phone

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