Hi Hans On 22/09/2022 09:55, Hans de Goede wrote: > Hi All, > > On 9/22/22 01:04, Daniel Scally wrote: >> Hello all >> >> At the moment there are a few places in the int3472-tps68470 driver that are >> limited to just working with a single consuming device dependent on the PMIC. >> There are systems where multiple camera sensors share a single TPS68470, so >> we need to extend the driver to support them. This requires a couple of tweaks >> to the ACPI functions to fetch dependent devices, which also assumes that only >> a single dependent will be found. >> >> The v2 for this series was some time ago...it's kept falling to the back of my >> to-do list so I've only just gotten round to it; sorry about that. v2 here: >> >> https://lore.kernel.org/linux-acpi/20220327161344.50477-1-djrscally@xxxxxxxxx/ > Rafael, I would like to merge this through the pdx86 tree may I have your > ack for patches 1 + 2 for this. As a reminder (since it has been a while) > here are your review remarks to v2 of patch 1: > > https://lore.kernel.org/platform-driver-x86/CAJZ5v0i2ciLHP-=8eQcZc0v0xCzhKHKpxLC=Kgv6W5E_5=HQJA@xxxxxxxxxxxxxx/ > > (which both seem to have been addressed) > > AFAICT you did not have any remarks for v2 of patch 2. > > Regards, > > Hans > > p.s. > > Dan, if I want to give the IR cam a test run on my own Surface Go (version 1) > I guess I may need a sensor driver? Where can I find that sensor driver and > what do I need in userspace to test this ? It's the ov7251 sensor driver - the required changes are in mainline now actually so you should be good there. The format of the data is a bit unconventional; it's Y10 but passed through Intel's CIO2 CSI receiver which packs it into a different format [1]. I'm probably just going to add support for that format to Howdy [2] which is what people want to use this camera for, but for now you can just test by using the ipu3-unpack utility in libcamera [3] to convert back to proper Y10 and then raw2rgbpnm [4] to turn it into a ppm. I use this script for now: https://paste.debian.net/1254629. Be warned that unless you are in sunlight the image is basically just grey - the IR LED on the front of the surface needs driving to give a clear image otherwise. I have an led driver for the tps68470 which can do that, I'm just working on getting it all tied in so it triggers when streaming starts. [1] https://www.linuxtv.org/downloads/v4l-dvb-apis-new/userspace-api/v4l/pixfmt-yuv-luma.html [2] https://github.com/boltgolt/howdy [3] https://git.libcamera.org/libcamera/libcamera.git/tree/utils/ipu3 [4] https://paste.debian.net/1254629 > > >> Daniel Scally (5): >> ACPI: scan: Add acpi_dev_get_next_consumer_dev() >> ACPI: bus: Add iterator for dependent devices >> platform/x86: int3472: Support multiple clock consumers >> platform/x86: int3472: Support multiple gpio lookups in board data >> platform/x86: int3472: Add board data for Surface Go2 IR camera >> >> drivers/acpi/scan.c | 40 +++++++--- >> drivers/clk/clk-tps68470.c | 13 +++- >> drivers/platform/x86/intel/int3472/common.c | 2 +- >> drivers/platform/x86/intel/int3472/tps68470.c | 76 ++++++++++++++++--- >> drivers/platform/x86/intel/int3472/tps68470.h | 3 +- >> .../x86/intel/int3472/tps68470_board_data.c | 54 ++++++++++++- >> include/acpi/acpi_bus.h | 15 +++- >> include/linux/platform_data/tps68470.h | 7 +- >> 8 files changed, 177 insertions(+), 33 deletions(-) >>
