According to the spec we should call MIPI_SEQ_TEAR_ON and DISPLAY_ON on enable for cmd-mode, just like we already call their counterparts on disable. Note: untested, my panel is a vid-mode panel.
Signed-off-by: Hans de Goede hdegoede@redhat.com --- drivers/gpu/drm/i915/intel_dsi.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c index e3ecb5a..bf956a3 100644 --- a/drivers/gpu/drm/i915/intel_dsi.c +++ b/drivers/gpu/drm/i915/intel_dsi.c @@ -667,6 +667,8 @@ static void intel_dsi_pre_enable(struct intel_encoder *encoder, if (is_cmd_mode(intel_dsi)) { for_each_dsi_port(port, intel_dsi->ports) I915_WRITE(MIPI_MAX_RETURN_PKT_SIZE(port), 8 * 4); + intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_TEAR_ON); + intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_DISPLAY_ON); } else { msleep(20); /* XXX */ for_each_dsi_port(port, intel_dsi->ports)