bcm27xx: import latest patches from the RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
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>
(cherry-picked from commit f07e572f64)

1 files changed, 0 insertions, 33 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0280-drm-vc4-A-present-but-empty-dmas-disables-audio.patch b/target/linux/bcm27xx/patches-5.4/950-0280-drm-vc4-A-present-but-empty-dmas-disables-audio.patch
deleted file mode 100644
index b0c5b969f2..0000000000
--- a/target/linux/bcm27xx/patches-5.4/950-0280-drm-vc4-A-present-but-empty-dmas-disables-audio.patch
+++ /dev/null
@@ -1,33 +0,0 @@
-From 88d5709082671ff2abeddc2a9b4acacbb85b9194 Mon Sep 17 00:00:00 2001
-From: Phil Elwell <phil@raspberrypi.org>
-Date: Wed, 31 Jul 2019 17:36:34 +0100
-Subject: [PATCH] drm/vc4: A present but empty dmas disables audio
-
-Overlays are unable to remove properties in the base DTB, but they
-can overwrite them. Allow a present but empty 'dmas' property
-to also disable the HDMI audio interface.
-
-See: https://github.com/raspberrypi/linux/issues/2489
-
-Signed-off-by: Phil Elwell <phil@raspberrypi.org>
----
- drivers/gpu/drm/vc4/vc4_hdmi.c | 6 ++++--
- 1 file changed, 4 insertions(+), 2 deletions(-)
-
---- a/drivers/gpu/drm/vc4/vc4_hdmi.c
-+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
-@@ -1066,10 +1066,12 @@ static int vc4_hdmi_audio_init(struct vc
- 	struct device *dev = &hdmi->pdev->dev;
- 	const __be32 *addr;
- 	int ret;
-+	int len;
- 
--	if (!of_find_property(dev->of_node, "dmas", NULL)) {
-+	if (!of_find_property(dev->of_node, "dmas", &len) ||
-+	    len == 0) {
- 		dev_warn(dev,
--			 "'dmas' DT property is missing, no HDMI audio\n");
-+			 "'dmas' DT property is missing or empty, no HDMI audio\n");
- 		return 0;
- 	}
-