When looking up a panel through its OF node, probe it if it hasn't
already.

The goal is to reduce deferred probes to a minimum, as it makes it very
cumbersome to find out why a device failed to probe, and can introduce
very big delays in when a critical device is probed.

Signed-off-by: Tomeu Vizoso <redacted>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

 drivers/gpu/drm/drm_panel.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/drm_panel.c b/drivers/gpu/drm/drm_panel.c
index 2ef988e037b7..ad79a7b9c74d 100644
--- a/drivers/gpu/drm/drm_panel.c
+++ b/drivers/gpu/drm/drm_panel.c

@@ -23,6 +23,7 @@
 
 #include <linux/err.h>
 #include <linux/module.h>
+#include <linux/of_device.h>
 
 #include <drm/drm_crtc.h>
 #include <drm/drm_panel.h>

@@ -80,6 +81,8 @@ struct drm_panel *of_drm_find_panel(struct device_node *np)
 {
 	struct drm_panel *panel;
 
+	of_device_probe(np);
+
 	mutex_lock(&panel_lock);
 
 	list_for_each_entry(panel, &panel_list, list) {

-- 
2.4.3

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