drm/msm/dp: fix connect/disconnect handled at irq_hpd

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Some usb type-c dongle use irq_hpd request to perform device connection
and disconnection. This patch add handling of both connection and
disconnection are based on the state of hpd_state and sink_count.

Changes in V2:
-- add dp_display_handle_port_ststus_changed()
-- fix kernel test robot complaint

Changes in V3:
-- add encoder_mode_set into struct dp_display_private

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 26b8d66a39 ("drm/msm/dp: promote irq_hpd handle to handle link training correctly")
Tested-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

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Kuogee Hsieh 2020-11-18 13:00:14 -08:00 • committed by Rob Clark

parent 854f6f1c65

commit c58eb1b54f

1 changed files with 55 additions and 37 deletions

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drivers/gpu/drm/msm/dp/dp_display.c

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