From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steve Longerbeam Subject: Re: [PATCH v3 00/24] i.MX Media Driver Date: Mon, 30 Jan 2017 17:22:01 -0800 Message-ID: <951c1a08-c0f2-4333-b4bf-410de8dd863f@gmail.com> References: <1483755102-24785-1-git-send-email-steve_longerbeam@mentor.com> <20170131004510.GQ27312@n2100.armlinux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20170131004510.GQ27312-l+eeeJia6m9URfEZ8mYm6t73F7V6hmMc@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Russell King - ARM Linux Cc: robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, shawnguo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org, fabio.estevam-3arQi8VN3Tc@public.gmane.org, mchehab-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, hverkuil-qWit8jRvyhVmR6Xm/wNWPw@public.gmane.org, nick-gcszYUEDH4VrovVCs/uTlw@public.gmane.org, markus.heiser-O6JHGLzbNUwb1SvskN2V4Q@public.gmane.org, p.zabel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org, laurent.pinchart+renesas-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org, bparrot-l0cyMroinI0@public.gmane.org, geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org, arnd-r2nGTMty4D4@public.gmane.org, sudipm.mukherjee-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, minghsiu.tsai-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, tiffany.lin-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, jean-christophe.trotin-qxv4g6HH51o@public.gmane.org, horms+renesas-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org, niklas.soderlund+renesas-1zkq55x86MTxsAP9Fp7wbw@public.gmane.org, robert.jarzmik-GANU6spQydw@public.gmane.org, songjun.wu-UWL1GkI3JZL3oGB3hsPCZA@public.gmane.org, andrew-ct.chen-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org, devel-gWbeCf7V1WCQmaza687I9mD2FQJk+8+b@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Steve Longerbeam , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-media@vger. List-Id: devicetree@vger.kernel.org On 01/30/2017 04:45 PM, Russell King - ARM Linux wrote: > > Hi, > > Trying this driver with an imx219 camera (which works with Philipp's > driver) results in not much happening... no /dev/media* node for it, > no subdevs, no nothing. No clues as to what's missing either. Only > messages from imx-media are from registering the various subdevs. > > [ 37.444877] imx-media: Registered subdev imx6-mipi-csi2 > [ 37.444973] imx-media: Registered subdev imx219 0-0010 > [ 38.868740] imx-media: Registered subdev ipu1_ic_prpenc > [ 38.869265] imx-media: Registered subdev ipu1_ic_prpvf > [ 38.869425] imx-media: Registered subdev ipu1_ic_pp0 > [ 38.870086] imx-media: Registered subdev ipu1_ic_pp1 > [ 38.871510] imx-media: Registered subdev ipu2_ic_prpenc > [ 38.871743] imx-media: Registered subdev ipu1_smfc0 > [ 38.873043] imx-media: Registered subdev ipu1_smfc1 > [ 38.873225] imx-media: Registered subdev ipu2_ic_prpvf > [ 38.875027] imx-media: Registered subdev ipu2_smfc0 > [ 38.875320] imx-media: Registered subdev ipu2_ic_pp0 > [ 38.877148] imx-media: Registered subdev ipu2_smfc1 > [ 38.877436] imx-media: Registered subdev ipu2_ic_pp1 > [ 38.932089] imx-media: Registered subdev camif0 > [ 38.956538] imx-media: Registered subdev camif1 > [ 38.959148] imx-media: Registered subdev camif2 > [ 38.964353] imx-media: Registered subdev camif3 > [ 206.502077] imx-media: Registered subdev ipu1_csi0 > [ 206.503304] imx-media: Registered subdev ipu1_csi1 > [ 206.503814] imx-media: Registered subdev ipu2_csi0 > [ 206.504281] imx-media: Registered subdev ipu2_csi1 > > I also get: > > [ 37.200072] imx6-mipi-csi2: data lanes: 2 > [ 37.200077] imx6-mipi-csi2: flags: 0x00000200 > > and from what I can see, all modules from drivers/staging/media/imx/ are > loaded (had to load imx-csi by hand because of the brokenness in the > drivers/gpu/ipu code attaching an device_node pointer after registering > the platform device, which changes what userspace sees in the modalias > file.) > > Any clues at what to look at? Hi Russell, I'm not familiar with IMX219, can you send me the source for the imx219 subdev? I don't see it in 4.10-rc1. I'm also having trouble finding a datasheet for it, but from what I've read, it has a MIPI CSI-2 interface. It should work fine as long as it presents a single source pad, registers asynchronously, and sets its entity function to MEDIA_ENT_F_CAM_SENSOR. Since I see it was registered asynchronously from the above, it must have been added to the device tree. But given that there is no /dev/media? node, the media driver is probably waiting for another subdev to register, I don't know what that would be. Can you send me the full patch on top of the v3 driver and I'll try to find what's missing. Edit: I see a subdev that is missing: the video mux. Did you enable CONFIG_VIDEO_MULTIPLEXER? Finally, what platform does this IMX219 sensor module plug into? Steve -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html