From: Gaurav K Singh <gaurav.k.singh@xxxxxxxxx>
New sequences are added in the mipi sequence block of the
VBT from version 3 onwards. The sequences are added to
make the code more generic as the panel related info
are placed in the VBT.
Cc: David Airlie <airlied@xxxxxxxx>
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Signed-off-by: Gaurav K Singh <gaurav.k.singh@xxxxxxxxx>
Signed-off-by: Shobhit Kumar <shobhit.kumar@xxxxxxxxx>
Signed-off-by: Deepak M <m.deepak@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_dsi.c | 8 ++++++++
drivers/gpu/drm/i915/intel_dsi_panel_vbt.c | 32 ++++++++++++++++++++++++++++++
2 files changed, 40 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index b928c50..82f6822 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -461,6 +461,8 @@ static void intel_dsi_enable(struct intel_encoder *encoder)
intel_dsi_port_enable(encoder);
}
+ drm_panel_backlight_on(intel_dsi->panel);
+
intel_panel_enable_backlight(intel_dsi->attached_connector);
}
@@ -485,6 +487,8 @@ static void intel_dsi_pre_enable(struct intel_encoder *encoder)
if (intel_dsi->gpio_panel)
gpiod_set_value_cansleep(intel_dsi->gpio_panel, 1);
+ /* Panel Enable */
+ drm_panel_power_on(intel_dsi->panel);
msleep(intel_dsi->panel_on_delay);
if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) {
@@ -537,6 +541,7 @@ static void intel_dsi_pre_disable(struct intel_encoder *encoder)
DRM_DEBUG_KMS("\n");
intel_panel_disable_backlight(intel_dsi->attached_connector);
+ drm_panel_backlight_off(intel_dsi->panel);
if (is_vid_mode(intel_dsi)) {
/* Send Shutdown command to the panel in LP mode */
@@ -651,6 +656,9 @@ static void intel_dsi_post_disable(struct intel_encoder *encoder)
drm_panel_unprepare(intel_dsi->panel);
+ /* Disable Panel */
+ drm_panel_power_off(intel_dsi->panel);
+
msleep(intel_dsi->panel_off_delay);
msleep(intel_dsi->panel_pwr_cycle_delay);
diff --git a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
index 787f01c..01a2743 100644
--- a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
+++ b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
@@ -404,12 +404,44 @@ static int vbt_panel_get_modes(struct drm_panel *panel)
return 1;
}
+static int vbt_panel_power_on(struct drm_panel *panel)
+{
+ generic_exec_sequence(panel, MIPI_SEQ_POWER_ON);
+
+ return 0;
+}
+
+static int vbt_panel_power_off(struct drm_panel *panel)
+{
+ generic_exec_sequence(panel, MIPI_SEQ_POWER_OFF);
+
+ return 0;
+}
+
+static int vbt_panel_backlight_on(struct drm_panel *panel)
+{
+ generic_exec_sequence(panel, MIPI_SEQ_BACKLIGHT_ON);
+
+ return 0;
+}
+
+static int vbt_panel_backlight_off(struct drm_panel *panel)
+{
+ generic_exec_sequence(panel, MIPI_SEQ_BACKLIGHT_OFF);
+
+ return 0;
+}
+
static const struct drm_panel_funcs vbt_panel_funcs = {
.disable = vbt_panel_disable,
.unprepare = vbt_panel_unprepare,
.prepare = vbt_panel_prepare,
.enable = vbt_panel_enable,
.get_modes = vbt_panel_get_modes,
+ .power_on = vbt_panel_power_on,
+ .power_off = vbt_panel_power_off,
+ .backlight_on = vbt_panel_backlight_on,
+ .backlight_off = vbt_panel_backlight_off,
};
struct drm_panel *vbt_panel_init(struct intel_dsi *intel_dsi, u16 panel_id)
--
1.9.1
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