Regards
Shashank
Expecting this patch to enable lspcon bits in VBT:
https://lists.freedesktop.org/archives/intel-gfx/2016-March/089541.html
FYI, an updated version of that patch has been pushed now.
BR,
Jani.
Thanks Jani, will have a look.
Signed-off-by: Shashank Sharma <shashank.sha...@intel.com>
---
drivers/gpu/drm/i915/intel_ddi.c | 15 +++++++++++++++
drivers/gpu/drm/i915/intel_drv.h | 4 ++++
drivers/gpu/drm/i915/intel_lspcon.c | 10 ++++++++++
3 files changed, 29 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 91654ff..f6c2869 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -2169,6 +2169,21 @@ void intel_ddi_init(struct drm_device *dev, enum port
port)
intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
intel_encoder->cloneable = 0;
+
+ /* Check if LSPCON is configured on this port */
+ if (is_lspcon_present_on_port(dev_priv, intel_dig_port->port)) {
+ if (!intel_lspcon_init_connector(intel_dig_port)) {
+ DRM_DEBUG_KMS("LSPCON configured for port %c\n",
+ port_name(intel_dig_port->port));
+ return;
+ } else {
+ DRM_ERROR("Can't set LSPCON(port %c), falling to
DP/HDMI\n",
+ port_name(intel_dig_port->port));
+ init_dp = true;
+ init_hdmi = true;
+ }
+ }
+
if (init_dp) {
if (!intel_ddi_init_dp_connector(intel_dig_port))
goto err;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index a6ec946..922852c 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1345,6 +1345,10 @@ void intel_dsi_init(struct drm_device *dev);
/* intel_dvo.c */
void intel_dvo_init(struct drm_device *dev);
+/* intel_lspcon.c */
+int intel_lspcon_init_connector(struct intel_digital_port *intel_dig_port);
+bool is_lspcon_present_on_port(struct drm_i915_private * dev_priv,
+ enum port port);
/* legacy fbdev emulation in intel_fbdev.c */
#ifdef CONFIG_DRM_FBDEV_EMULATION
diff --git a/drivers/gpu/drm/i915/intel_lspcon.c
b/drivers/gpu/drm/i915/intel_lspcon.c
index 20f90e0..96e4c71 100644
--- a/drivers/gpu/drm/i915/intel_lspcon.c
+++ b/drivers/gpu/drm/i915/intel_lspcon.c
@@ -397,6 +397,16 @@ static const struct drm_connector_helper_funcs
lspcon_connector_helper_funcs = {
.best_encoder = intel_best_encoder,
};
+bool is_lspcon_present_on_port(struct drm_i915_private *dev_priv, enum port
port)
+{
+ /*
+ * TODO: HACK
+ * Replace this with proper VBT child dev config check
+ * logic once that patch is available in tree
+ */
+ return IS_GEN9(dev_priv->dev) && (port == PORT_B);
+}
+
int intel_lspcon_init_connector(struct intel_digital_port *intel_dig_port)
{
int ret;
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