On 03/15/2018 07:38 AM, jacopo mondi wrote: > Hi Sakari, > thanks for looking into this! > > On Thu, Mar 15, 2018 at 01:35:34PM +0200, Sakari Ailus wrote: >> Hi Jacopo, >> >> I wonder if it'd make sense to just make all the changes to the driver and >> then have it reviewed; I'm not sure the old driver can be said to have been >> in a known-good state that'd be useful to compare against. I think you did >> that with another driver as well. >> > > Well, I understand this is still debated, and I see your point. > As far as I can tell the driver had been developed to work with SH4 > Ecovec boards and there tested. > > I'm not sure I fully got you here though. Are you proposing to > squash my next patch that cleans up the driver into this one and > propose it as a completely new driver to be reviewed from scratch? > > In the two previous driver I touched in this "remove soc_camera" > journey (ov772x and tw9910) I have followed this same pattern: copy > the soc_camera driver without removing the existing one, and pile on > top my changes/cleanups in another patch. Then port the board code to > use the new sensor driver, and the new CEU driver as well. > > Also, how would you like to proceed here? Hans sent a pull request for > the series, should I go with incremental changes on top of this?
I don't want to postpone this conversion. The i2c/mt9t112.c is bug-compatible with i2c/soc-camera/mt9t112.c which is good enough for me. Being able to remove soc-camera in the (hopefully very) near future is the most important thing here. Once Jacopo can actually test the sensor, then that's a good time to review the driver in more detail. This reminded me that I actually started testing this sensor a year ago (I bought the same sensor on ebay, I completely forgot about that!). My attempt is here: https://git.linuxtv.org/hverkuil/media_tree.git/log/?h=mt9t112 I never finished it because I had no documentation on the pinout and never got around to hooking my oscilloscope up to it to figure this out. I was testing this with the atmel-isc.c driver. This might be of some use to you, Jacopo, once you have the sensor. Regards, Hans
