Execute the MIPI_SEQ_BACKLIGHT_ON/OFF VBT sequences at the same time as
we call intel_panel_enable_backlight() / intel_panel_disable_backlight().
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_dsi.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index 03a7a7c..9b0c9152 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -674,12 +674,13 @@ static void intel_dsi_pre_enable(struct intel_encoder *encoder,
msleep(100);
intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_DISPLAY_ON);
- intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_BACKLIGHT_ON);
intel_dsi_port_enable(encoder);
}
+ /* Enable backlight, both pwm and VBT */
intel_panel_enable_backlight(intel_dsi->attached_connector);
+ intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_BACKLIGHT_ON);
}
static void intel_dsi_enable_nop(struct intel_encoder *encoder,
@@ -703,6 +704,8 @@ static void intel_dsi_pre_disable(struct intel_encoder *encoder,
DRM_DEBUG_KMS("\n");
+ /* Disable backlight, both VBT and pwm */
+ intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_BACKLIGHT_OFF);
intel_panel_disable_backlight(intel_dsi->attached_connector);
if (is_vid_mode(intel_dsi)) {
@@ -737,7 +740,6 @@ static void intel_dsi_post_disable(struct intel_encoder *encoder,
* if disable packets are sent before sending shutdown packet then in
* some next enable sequence send turn on packet error is observed
*/
- intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_BACKLIGHT_OFF);
intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_DISPLAY_OFF);
/* Transition to LP-00 */
--
2.9.3
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