Hi Adam, On Fri, Nov 5, 2021 at 1:14 AM Adam Ford <aford173@xxxxxxxxx> wrote: > +Lucas Stach > I think I found the issue of the camera hanging. It appears to be > related to the disp-blk-ctrl virtual power domains. > > In the NXP kernel, the dispmix power domain in ATF sets bits 16 and 17 > of 32e2_8008 (GPR_MIPI_RESET_DIV), but the disp-blk-ctl driver only > configures 32e2_8000 (SFT_RSTN_CSR) and 32e2_8004 (CLK_EN_CSR). As > soon as I set those extra bits, the hanging went away, and I got an > image and the image looked good. I'll try to work on this tomorrow or > the weekend to submit a patch with a fixes tag to make sure the > IMX8MM_DISPBLK_PD_MIPI_CSI power domain properly configures the extra > register. > > With this change, I didn't need to modify either the CSI-bridge driver > nor the mipi_csi driver, so when I get the blk-ctrl fix, I'll resubmit > this series on top of that with the corrections suggested as a proper > patch without the RFC. That's great news! Thanks a lot for your good work. Cheers
