Re: [PATCH v2 00/20] drm/i915/dp: Fix few SST HPD IRQ handling issues

[Imre Deak <imre.deak@intel.com>]

Please disregard this version, I managed to send v1 without the actual
v2 changes. I'll resend the updated version.

On Wed, Feb 25, 2026 at 06:27:31PM +0200, Imre Deak wrote:
> This is v2 of [1], addressing the review comments related to bool vs.
> error code function return values from Luca and Jani in patches 2, 11,
> 12, 15 and adding R-bs.
> 
> The patchset also prepares for the upcoming UHBR DP tunnel support
> changes.
> 
> Cc: Luca Coelho <luciano.coelho@intel.com>
> Cc: Jani Nikula <jani.nikula@intel.com>
> 
> [1] https://lore.kernel.org/all/20250626082053.219514-1-imre.deak@intel.com
> 
> Imre Deak (20):
>   drm/i915/dp_mst: Reprobe connector if the IRQ ESI read failed
>   drm/i915/dp_mst: Verify the link status always the same way
>   drm/i915/dp_mst: Reuse intel_dp_check_link_state() in the HPD IRQ
>     handler
>   drm/i915/dp: Handle a tunneling IRQ after acking it
>   drm/i915/dp: Handle the RX_CAP_CHANGED HPD IRQ
>   drm/i915/dp: Handle the DOWNSTREAM_PORT_STATUS_CHANGED event
>   drm/i915/dp: Don't clobber the encoder state in the HPD IRQ handler
>   drm/i915/dp: Remove the device service IRQ handling from connector
>     detect
>   drm/i915/dp: Fix the device service IRQ DPCD_REV check
>   drm/i915/dp: Fix the link service IRQ DPCD_REV check
>   drm/i915/dp: Reprobe connector if getting/acking device IRQs fails
>   drm/i915/dp: Reprobe connector if getting/acking link service IRQs
>     fails
>   drm/i915/dp: Return early if getting/acking device service IRQs fails
>   drm/i915/dp: Return early if getting/acking link service IRQs fails
>   drm/i915/dp: Read/ack sink count and sink IRQs for SST as it's done
>     for MST
>   drm/i915/dp: Print debug message for a sink connected off request
>   drm/i915/dp: Check SST link status while handling link service IRQs
>   drm/i915/dp_mst: Reuse intel_dp_handle_link_service_irq()
>   drm/i915/dp: Ack only the handled device service IRQs
>   drm/i915/dp: Ack only the handled link service IRQs
> 
>  .../drm/i915/display/intel_display_types.h    |   1 +
>  drivers/gpu/drm/i915/display/intel_dp.c       | 253 ++++++++++++------
>  2 files changed, 171 insertions(+), 83 deletions(-)
> 
> -- 
> 2.49.1
>