Patch "drm/i915: Allow DSI dual link to be configured on any pipe" has been added to the 4.1-stable tree

This is a note to let you know that I've just added the patch titled

drm/i915: Allow DSI dual link to be configured on any pipe

to the 4.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
drm-i915-allow-dsi-dual-link-to-be-configured-on-any-pipe.patch
and it can be found in the queue-4.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Gaurav K Singh <[email protected]>
Date: Mon, 3 Aug 2015 15:45:32 +0530
Subject: drm/i915: Allow DSI dual link to be configured on any pipe
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From: Gaurav K Singh <[email protected]>

commit 824257857fd81f5e749831ff9cd63566b5a86abe upstream.

Just like single link MIPI panels, similarly for dual link panels, pipe to be configured is based on the DVO port from VBT Block 2. In hardware, Port A is mapped with Pipe A and Port C is mapped with Pipe B.

This issue got introduced in -

commit 7e9804fdcffc650515c60f524b8b2076ee59e710

Author: Jani Nikula <[email protected]>
Date:   Fri Jan 16 14:27:23 2015 +0200

drm/i915/dsi: add drm mipi dsi host support

---
 drivers/gpu/drm/i915/intel_dsi.c |    9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

@@ -1036,11 +1036,7 @@ void intel_dsi_init(struct drm_device *d
 	intel_connector->unregister = intel_connector_unregister;
 
 	/* Pipe A maps to MIPI DSI port A, pipe B maps to MIPI DSI port C */
-	if (dev_priv->vbt.dsi.config->dual_link) {
-		/* XXX: does dual link work on either pipe? */
-		intel_encoder->crtc_mask = (1 << PIPE_A);
-		intel_dsi->ports = ((1 << PORT_A) | (1 << PORT_C));
-	} else if (dev_priv->vbt.dsi.port == DVO_PORT_MIPIA) {
+	if (dev_priv->vbt.dsi.port == DVO_PORT_MIPIA) {
 		intel_encoder->crtc_mask = (1 << PIPE_A);
 		intel_dsi->ports = (1 << PORT_A);
 	} else if (dev_priv->vbt.dsi.port == DVO_PORT_MIPIC) {

@@ -1048,6 +1044,9 @@ void intel_dsi_init(struct drm_device *d
 		intel_dsi->ports = (1 << PORT_C);
 	}
 
+	if (dev_priv->vbt.dsi.config->dual_link)
+		intel_dsi->ports = ((1 << PORT_A) | (1 << PORT_C));
+
 	/* Create a DSI host (and a device) for each port. */
 	for_each_dsi_port(port, intel_dsi->ports) {
 		struct intel_dsi_host *host;

Patches currently in stable-queue which might be from [email protected] are

queue-4.1/drm-i915-allow-dsi-dual-link-to-be-configured-on-any-pipe.patch