[PATCH 00/18] drm/i915/display: convert to generic read_poll_timeout()

Jani Nikula jani.nikula at intel.com
Fri Jun 27 11:36:14 UTC 2025


Convert waits that are not related to MMIO reads to the generic iopoll.h
read_poll_timeout() helper.

Together with [1] and [2], this series completely removes the custom
i915_utils.h wait macro usage from display code, and unifies on the
kernel generic poll waiter.


BR,
Jani.

[1] https://lore.kernel.org/r/cover.1750959689.git.jani.nikula@intel.com
[2] https://lore.kernel.org/r/20250626192632.2330349-1-jani.nikula@intel.com


Jani Nikula (18):
  drm/i915/hdmi: use generic read_poll_timeout() instead of __wait_for()
  drm/i915/hdcp: use generic read_poll_timeout() instead of __wait_for()
  drm/i915/dsi: use generic read_poll_timeout() instead of wait_for_us()
  drm/i915/dsi-pll: use generic read_poll_timeout() instead of
    wait_for()
  drm/i915/gmbus: use generic read_poll_timeout*() instead of
    wait_for*()
  drm/i915/wm: use generic read_poll_timeout() instead of wait_for()
  drm/i915/cdclk: use generic read_poll_timeout() instead of wait_for()
  drm/i915/power: use generic read_poll_timeout() instead of wait_for()
  drm/i915/power-well: use generic read_poll_timeout() instead of
    wait_for() for DKL PHY
  drm/i915/power-well: use generic read_poll_timeout() instead of
    wait_for() for VLV/CHV
  drm/i915/dp: use generic read_poll_timeout() instead of wait_for()
  drm/i915/dp: use generic read_poll_timeout() instead of wait_for() in
    link training
  drm/i915/vblank: use generic read_poll_timeout() instead of wait_for()
  drm/i915/tc: use generic read_poll_timeout() instead of wait_for()
  drm/i915/dsb: use generic read_poll_timeout() instead of wait_for()
  drm/i915/lspcon: use generic read_poll_timeout() instead of wait_for()
  drm/i915/opregion: use generic read_poll_timeout() instead of
    wait_for()
  drm/i915/ddi: prefer read_poll_timeout() over readx_poll_timeout()

 drivers/gpu/drm/i915/display/i9xx_wm.c        | 18 ++++++--
 drivers/gpu/drm/i915/display/icl_dsi.c        | 20 +++++++--
 drivers/gpu/drm/i915/display/intel_cdclk.c    | 41 ++++++++++--------
 drivers/gpu/drm/i915/display/intel_ddi.c      | 33 ++++++--------
 .../drm/i915/display/intel_display_power.c    |  9 +++-
 .../i915/display/intel_display_power_well.c   | 43 +++++++++++--------
 drivers/gpu/drm/i915/display/intel_dp.c       | 23 +++++-----
 .../drm/i915/display/intel_dp_link_training.c | 19 ++++++--
 drivers/gpu/drm/i915/display/intel_dsb.c      | 12 +++++-
 drivers/gpu/drm/i915/display/intel_gmbus.c    | 15 +++++--
 drivers/gpu/drm/i915/display/intel_hdcp.c     |  9 ++--
 drivers/gpu/drm/i915/display/intel_hdmi.c     | 10 ++---
 drivers/gpu/drm/i915/display/intel_lspcon.c   | 14 ++++--
 drivers/gpu/drm/i915/display/intel_opregion.c | 11 +++--
 drivers/gpu/drm/i915/display/intel_tc.c       | 18 +++++++-
 drivers/gpu/drm/i915/display/intel_vblank.c   | 10 ++++-
 drivers/gpu/drm/i915/display/vlv_dsi_pll.c    | 10 ++++-
 17 files changed, 210 insertions(+), 105 deletions(-)

-- 
2.39.5



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