Modify aux backlight enable/disable sequence just like what we
did for genernal eDP panel.
1. Setup PWM freq and brightness level before enable display backlight.
2. Set PWM to 0 after backlight enable was off.
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Cc: Jose Roberto de Souza <jose.souza@xxxxxxxxx>
Cc: Cooper Chiou <cooper.chiou@xxxxxxxxx>
Signed-off-by: Lee, Shawn C <shawn.c.lee@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_dp_aux_backlight.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_dp_aux_backlight.c b/drivers/gpu/drm/i915/intel_dp_aux_backlight.c
index 7ded95a334db..98210ae17285 100644
--- a/drivers/gpu/drm/i915/intel_dp_aux_backlight.c
+++ b/drivers/gpu/drm/i915/intel_dp_aux_backlight.c
@@ -216,13 +216,14 @@ static void intel_dp_aux_enable_backlight(const struct intel_crtc_state *crtc_st
}
}
- set_aux_backlight_enable(intel_dp, true);
intel_dp_aux_set_backlight(conn_state, connector->panel.backlight.level);
+ set_aux_backlight_enable(intel_dp, true);
}
static void intel_dp_aux_disable_backlight(const struct drm_connector_state *old_conn_state)
{
set_aux_backlight_enable(enc_to_intel_dp(old_conn_state->best_encoder), false);
+ intel_dp_aux_set_backlight(old_conn_state, 0);
}
static int intel_dp_aux_setup_backlight(struct intel_connector *connector,
--
2.7.4
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