Thanks John, good addressing! The root cause as you said, our hibmc previous frame buffer format depth setting is wrong which does not pass the new format sanity checking drm_mode_legacy_fb_format. For this series, Reviewed-by: Xinliang Liu <z.liuxinliang@xxxxxxxxxxxxx> Applied to hisilicon-drm-next. Thanks, Xinliang On Sun, 23 Sep 2018 at 20:32, John Garry <john.garry@xxxxxxxxxx> wrote: > > This patchset fixes a couple of issues in probing the HiBMC driver, as > follows: > - fix the probe error path to not carry an error code in the pointer > - don't use invalid legacy fb bpp/depth combination > > Another more trivial patch is for using the standard Huawei PCI vendor ID > instead of hard-coding it. > > Tested on Huawei D05 board. I can see tux on BMC VGA console. > > John Garry (3): > drm/hisilicon: hibmc: Do not carry error code in HiBMC framebuffer > pointer > drm/hisilicon: hibmc: Don't overwrite fb helper surface depth > drm/hisilicon: hibmc: Use HUAWEI PCI vendor ID macro > > drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 2 +- > drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_fbdev.c | 2 +- > 2 files changed, 2 insertions(+), 2 deletions(-) > > -- > 1.9.1 > > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/dri-devel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel