Based on the discussions/comments on the patch https://lore.kernel.org/intel-xe/[email protected]/ in order to address the real HW(DPTX) generated timeout and adress the fix, this series is targetted. Along with this it was noticed that the the AUX power request bit in the port control register is being touched outside the power well framework. The limitation due to the way aux port control register was programmed. Replacing the aux control register write to read/mask/write thereby writing only the required bits.
Note: This is RFC and full round of testing the pending. Signed-off-by: Arun R Murthy <[email protected]> --- Arun R Murthy (3): drm/display/dp: Export function to wake the sink AUX_CH drm/i915/dp: On AUX_CH tx timeout, wake up the sink drm/i915/dp: Configure PORT_AUX_CTL and then trigger the tx drivers/gpu/drm/display/drm_dp_helper.c | 36 +++++++++ drivers/gpu/drm/i915/display/intel_display_types.h | 6 +- drivers/gpu/drm/i915/display/intel_dp_aux.c | 94 +++++++++++++++------- drivers/gpu/drm/i915/display/intel_psr.c | 29 ++++--- include/drm/display/drm_dp_helper.h | 1 + 5 files changed, 123 insertions(+), 43 deletions(-) --- base-commit: 6884fe03ff2bc5a2f501ba4710f950dd4933ac84 change-id: 20260309-dp_aux_timeout-9d5b1b35a0d8 Best regards, -- Arun R Murthy <[email protected]>
