On Sat, 17 Feb 2024 at 17:03, Johan Hovold <johan+linaro@xxxxxxxxxx> wrote:
>
> From: Rob Clark <robdclark@xxxxxxxxxxxx>
>
> We need to bail out before adding/removing devices if we are going to
> -EPROBE_DEFER. Otherwise boot can get stuck in a probe deferral loop due
> to a long-standing issue in driver core (see fbc35b45f9f6 ("Add
> documentation on meaning of -EPROBE_DEFER")).
>
> Deregistering the altmode child device can potentially also trigger bugs
> in the DRM bridge implementation, which does not expect bridges to go
> away.
>
> Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
> Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
> Link: https://lore.kernel.org/r/20231213210644.8702-1-robdclark@xxxxxxxxx
> [ johan: rebase on 6.8-rc4, amend commit message and mention DRM ]
> Fixes: 58ef4ece1e41 ("soc: qcom: pmic_glink: Introduce base PMIC GLINK driver")
> Cc: stable@xxxxxxxxxxxxxxx # 6.3
> Cc: Bjorn Andersson <andersson@xxxxxxxxxx>
> Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
> ---
> drivers/soc/qcom/pmic_glink.c | 21 +++++++++++----------
> 1 file changed, 11 insertions(+), 10 deletions(-)
>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
--
With best wishes
Dmitry
