bcm27xx: update patches from RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0572-drm-vc4-hdmi-Use-debugfs-private-field.patch b/target/linux/bcm27xx/patches-5.4/950-0572-drm-vc4-hdmi-Use-debugfs-private-field.patch
new file mode 100644
index 0000000000..89d8aae28d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0572-drm-vc4-hdmi-Use-debugfs-private-field.patch
@@ -0,0 +1,30 @@
+From 26fbd25a3f99a85c09d5f1ed44980c506a3eac81 Mon Sep 17 00:00:00 2001
+From: Maxime Ripard <maxime@cerno.tech>
+Date: Tue, 14 Jan 2020 17:24:32 +0100
+Subject: [PATCH] drm/vc4: hdmi: Use debugfs private field
+
+We're calling vc4_debugfs_add_file with our struct vc4_hdmi pointer set
+in the private field, but we don't use that field and go through the
+main struct vc4_dev to get it.
+
+Let's use the private field directly, that will save us some trouble
+later on.
+
+Signed-off-by: Maxime Ripard <maxime@cerno.tech>
+---
+ drivers/gpu/drm/vc4/vc4_hdmi.c | 4 +---
+ 1 file changed, 1 insertion(+), 3 deletions(-)
+
+--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
+@@ -182,9 +182,7 @@ static const struct debugfs_reg32 hd_reg
+ static int vc4_hdmi_debugfs_regs(struct seq_file *m, void *unused)
+ {
+ 	struct drm_info_node *node = (struct drm_info_node *)m->private;
+-	struct drm_device *dev = node->minor->dev;
+-	struct vc4_dev *vc4 = to_vc4_dev(dev);
+-	struct vc4_hdmi *hdmi = vc4->hdmi;
++	struct vc4_hdmi *hdmi = node->info_ent->data;
+ 	struct drm_printer p = drm_seq_file_printer(m);
+ 
+ 	drm_print_regset32(&p, &hdmi->hdmi_regset);