linux-kernel - Re: [PATCH v5 00/39] i.MX Media Driver

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Date:   Fri, 10 Mar 2017 15:20:34 -0800
From:   Steve Longerbeam <slongerbeam@...il.com>
To:     Russell King - ARM Linux <linux@...linux.org.uk>
Cc:     robh+dt@...nel.org, mark.rutland@....com, shawnguo@...nel.org,
        kernel@...gutronix.de, fabio.estevam@....com, mchehab@...nel.org,
        hverkuil@...all.nl, nick@...anahar.org, markus.heiser@...marIT.de,
        p.zabel@...gutronix.de, laurent.pinchart+renesas@...asonboard.com,
        bparrot@...com, geert@...ux-m68k.org, arnd@...db.de,
        sudipm.mukherjee@...il.com, minghsiu.tsai@...iatek.com,
        tiffany.lin@...iatek.com, jean-christophe.trotin@...com,
        horms+renesas@...ge.net.au, niklas.soderlund+renesas@...natech.se,
        robert.jarzmik@...e.fr, songjun.wu@...rochip.com,
        andrew-ct.chen@...iatek.com, gregkh@...uxfoundation.org,
        shuah@...nel.org, sakari.ailus@...ux.intel.com, pavel@....cz,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-media@...r.kernel.org,
        devel@...verdev.osuosl.org,
        Steve Longerbeam <steve_longerbeam@...tor.com>
Subject: Re: [PATCH v5 00/39] i.MX Media Driver



On 03/10/2017 12:13 PM, Russell King - ARM Linux wrote:
> Version 5 gives me no v4l2 controls exposed through the video device
> interface.
>
> Just like with version 4, version 5 is completely useless with IMX219:
>
> imx6-mipi-csi2: LP-11 timeout, phy_state = 0x00000200
> ipu1_csi0: pipeline start failed with -110
> imx6-mipi-csi2: LP-11 timeout, phy_state = 0x00000200
> ipu1_csi0: pipeline start failed with -110
> imx6-mipi-csi2: LP-11 timeout, phy_state = 0x00000200
> ipu1_csi0: pipeline start failed with -110
>
> So, like v4, I can't do any further testing.
>

Is the imx219 placing the csi-2 bus in LP-11 state on exit
from s_power(ON)?

I realize that probably means bringing the chip up to a
completely operational state and then setting it to stream
OFF in the s_power() op.

The same had to be done for the OV5640.

Steve