These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 38 insertions, 9 deletions

diff --git a/kernel/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c b/kernel/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c
index d847b9436..077f7521a 100644
--- a/kernel/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c
+++ b/kernel/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c
@@ -119,6 +119,8 @@ static int mdp4_hw_init(struct msm_kms *kms)
 	if (mdp4_kms->rev > 1)
 		mdp4_write(mdp4_kms, REG_MDP4_RESET_STATUS, 1);
 
+	dev->mode_config.allow_fb_modifiers = true;
+
 out:
 	pm_runtime_put_sync(dev->dev);
 
@@ -157,6 +159,12 @@ static void mdp4_complete_commit(struct msm_kms *kms, struct drm_atomic_state *s
 	mdp4_disable(mdp4_kms);
 }
 
+static void mdp4_wait_for_crtc_commit_done(struct msm_kms *kms,
+						struct drm_crtc *crtc)
+{
+	mdp4_crtc_wait_for_commit_done(crtc);
+}
+
 static long mdp4_round_pixclk(struct msm_kms *kms, unsigned long rate,
 		struct drm_encoder *encoder)
 {
@@ -195,6 +203,7 @@ static const struct mdp_kms_funcs kms_funcs = {
 		.disable_vblank  = mdp4_disable_vblank,
 		.prepare_commit  = mdp4_prepare_commit,
 		.complete_commit = mdp4_complete_commit,
+		.wait_for_crtc_commit_done = mdp4_wait_for_crtc_commit_done,
 		.get_format      = mdp_get_format,
 		.round_pixclk    = mdp4_round_pixclk,
 		.preclose        = mdp4_preclose,
@@ -232,22 +241,37 @@ int mdp4_enable(struct mdp4_kms *mdp4_kms)
 }
 
 #ifdef CONFIG_OF
-static struct drm_panel *detect_panel(struct drm_device *dev, const char *name)
+static struct drm_panel *detect_panel(struct drm_device *dev)
 {
-	struct device_node *n;
+	struct device_node *endpoint, *panel_node;
+	struct device_node *np = dev->dev->of_node;
 	struct drm_panel *panel = NULL;
 
-	n = of_parse_phandle(dev->dev->of_node, name, 0);
-	if (n) {
-		panel = of_drm_find_panel(n);
-		if (!panel)
-			panel = ERR_PTR(-EPROBE_DEFER);
+	endpoint = of_graph_get_next_endpoint(np, NULL);
+	if (!endpoint) {
+		dev_err(dev->dev, "no valid endpoint\n");
+		return ERR_PTR(-ENODEV);
+	}
+
+	panel_node = of_graph_get_remote_port_parent(endpoint);
+	if (!panel_node) {
+		dev_err(dev->dev, "no valid panel node\n");
+		of_node_put(endpoint);
+		return ERR_PTR(-ENODEV);
+	}
+
+	of_node_put(endpoint);
+
+	panel = of_drm_find_panel(panel_node);
+	if (!panel) {
+		of_node_put(panel_node);
+		return ERR_PTR(-EPROBE_DEFER);
 	}
 
 	return panel;
 }
 #else
-static struct drm_panel *detect_panel(struct drm_device *dev, const char *name)
+static struct drm_panel *detect_panel(struct drm_device *dev)
 {
 	// ??? maybe use a module param to specify which panel is attached?
 }
@@ -285,7 +309,7 @@ static int modeset_init(struct mdp4_kms *mdp4_kms)
 	 * Setup the LCDC/LVDS path: RGB2 -> DMA_P -> LCDC -> LVDS:
 	 */
 
-	panel = detect_panel(dev, "qcom,lvds-panel");
+	panel = detect_panel(dev);
 	if (IS_ERR(panel)) {
 		ret = PTR_ERR(panel);
 		dev_err(dev->dev, "failed to detect LVDS panel: %d\n", ret);
@@ -518,6 +542,11 @@ struct msm_kms *mdp4_kms_init(struct drm_device *dev)
 		goto fail;
 	}
 
+	dev->mode_config.min_width = 0;
+	dev->mode_config.min_height = 0;
+	dev->mode_config.max_width = 2048;
+	dev->mode_config.max_height = 2048;
+
 	return kms;
 
 fail: