drm/i915/dsi: update reset and power sequences in panel prepare/unprepare hooks
Based on the documentation alone, it's anyone's guess when exactly we should be running these sequences. Add power on/off sequences where they feel logical and update assert/deassert reset. The drm panel hooks don't currently offer us more granularity anyway. v2: update assert/deassert reset as well (Ville) Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1543320494df953fa073e136248238eaa1eed059.1474286487.git.jani.nikula@intel.com
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@ -459,6 +459,8 @@ static void generic_exec_sequence(struct drm_panel *panel, enum mipi_seq seq_id)
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static int vbt_panel_prepare(struct drm_panel *panel)
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{
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generic_exec_sequence(panel, MIPI_SEQ_ASSERT_RESET);
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generic_exec_sequence(panel, MIPI_SEQ_POWER_ON);
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generic_exec_sequence(panel, MIPI_SEQ_DEASSERT_RESET);
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generic_exec_sequence(panel, MIPI_SEQ_INIT_OTP);
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return 0;
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@ -466,7 +468,8 @@ static int vbt_panel_prepare(struct drm_panel *panel)
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static int vbt_panel_unprepare(struct drm_panel *panel)
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{
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generic_exec_sequence(panel, MIPI_SEQ_DEASSERT_RESET);
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generic_exec_sequence(panel, MIPI_SEQ_ASSERT_RESET);
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generic_exec_sequence(panel, MIPI_SEQ_POWER_OFF);
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return 0;
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}
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