1. 12 Jun, 2019 14 commits
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  3. 10 Jun, 2019 16 commits
  4. 09 Jun, 2019 2 commits
  5. 08 Jun, 2019 1 commit
    • Hans de Goede's avatar
      drm/i915/dsi: Read back pclk set by GOP and use that as pclk (v3) · 6be306be
      Hans de Goede authored
      The GOP sometimes initializes the pclk at a (slightly) different frequency
      then the pclk which we've calculated.
      
      This commit makes the DSI code read-back the pclk set by the GOP and
      if that is within a reasonable margin of the calculated pclk, uses
      that instead.
      
      This fixes the first modeset being a full modeset instead of a
      fast modeset on systems where the GOP pclk is different.
      
      Changes in v2:
      -Use intel_encoder_current_mode() to get the pclk setup by the GOP
      
      Changes in v3:
      -Back to the readback approach, skipping the dsi_pll.ctrl / .dev checks
       in intel_pipe_config_compare() when adjust is set leads to:
       [drm:pipe_config_err [i915]] *ERROR* mismatch in dsi_pll.ctrl (...)
       [drm:pipe_config_err [i915]] *ERROR* mismatch in dsi_pll.div (...)
      -Do the readback and pclk overriding from vlv_dsi_init(), rather then from
       intel_dsi_vbt_init() as the vbt code should not be touching the hw
      Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
      Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
      Link: https://patchwork.freedesktop.org/patch/msgid/20190605181735.7020-3-hdegoede@redhat.com
      6be306be