On Thu, 2017-02-16 at 14:27 -0800, Steve Longerbeam wrote:

On 02/16/2017 02:20 PM, Russell King - ARM Linux wrote:

quoted

On Wed, Feb 15, 2017 at 06:19:02PM -0800, Steve Longerbeam wrote:

quoted

In version 4:

With this version, I get:

[28762.892053] imx6-mipi-csi2: LP-11 timeout, phy_state = 0x00000000
[28762.899409] ipu1_csi0: pipeline_set_stream failed with -110

Right, in the imx219, on exit from s_power(), the clock and data lanes
must be placed in the LP-11 state. This has been done in the ov5640 and
tc358743 subdevs.

If we want to bring in the patch that adds a .prepare_stream() op,
the csi-2 bus would need to be placed in LP-11 in that op instead.

Philipp, should I go ahead and add your .prepare_stream() patch?

I think with Russell's explanation of how the imx219 sensor operates,
we'll have to do something before calling the sensor s_stream, but right
now I'm still unsure what exactly.

regards
Philipp