From: Uma Shankar <uma.shan...@intel.com>
Device ready to be done after panel power on and before
sending the OTP commands. Patch fixes the enable sequence
as per this.
Signed-off-by: Uma Shankar <uma.shan...@intel.com>
Signed-off-by: Vidya Srinivas <vidya.srini...@intel.com>
---
drivers/gpu/drm/i915/intel_dsi.c | 12 ++++++++++++
drivers/gpu/drm/i915/intel_dsi_panel_vbt.c | 4 +---
2 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index 60ca0b9..ac02fd8 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -568,6 +568,12 @@ static void intel_dsi_pre_enable(struct intel_encoder
*encoder,
intel_dsi_prepare(encoder, pipe_config);
+ if (IS_BROXTON(dev_priv)) {
+ /* Panel Enable */
+ drm_panel_power_on(intel_dsi->panel);
+ msleep(intel_dsi->panel_on_delay);
+ }
+
/* Panel Enable over CRC PMIC */
if (intel_dsi->gpio_panel)
gpiod_set_value_cansleep(intel_dsi->gpio_panel, 1);
@@ -586,6 +592,12 @@ static void intel_dsi_pre_enable(struct intel_encoder
*encoder,
/* put device in ready state */
intel_dsi_device_ready(encoder);
+ if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
+ /* Panel Enable */
+ drm_panel_power_on(intel_dsi->panel);
+ msleep(intel_dsi->panel_on_delay);
+ }
+
drm_panel_prepare(intel_dsi->panel);
for_each_dsi_port(port, intel_dsi->ports)
diff --git a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
index 4279279..aa73d22 100644
--- a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
+++ b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
@@ -493,9 +493,6 @@ static void generic_exec_sequence(struct drm_panel *panel,
enum mipi_seq seq_id)
static int vbt_panel_prepare(struct drm_panel *panel)
{
- generic_exec_sequence(panel, MIPI_SEQ_ASSERT_RESET);
- generic_exec_sequence(panel, MIPI_SEQ_POWER_ON);
- generic_exec_sequence(panel, MIPI_SEQ_DEASSERT_RESET);
generic_exec_sequence(panel, MIPI_SEQ_INIT_OTP);
return 0;
@@ -550,6 +547,7 @@ static int vbt_panel_get_modes(struct drm_panel *panel)
static int vbt_panel_power_on(struct drm_panel *panel)
{
generic_exec_sequence(panel, MIPI_SEQ_POWER_ON);
+ generic_exec_sequence(panel, MIPI_SEQ_ASSERT_RESET);
return 0;
}
--
1.9.1
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