brcm2708: rename target to bcm27xx
[openwrt/openwrt.git] / target / linux / brcm2708 / patches-4.19 / 950-0630-drm-vc4-A-present-but-empty-dmas-disables-audio.patch
diff --git a/target/linux/brcm2708/patches-4.19/950-0630-drm-vc4-A-present-but-empty-dmas-disables-audio.patch b/target/linux/brcm2708/patches-4.19/950-0630-drm-vc4-A-present-but-empty-dmas-disables-audio.patch
deleted file mode 100644 (file)
index 2d38456..0000000
+++ /dev/null
@@ -1,33 +0,0 @@
-From 8befbf55f2668a4dae739588ed3c0b0d06fccacd 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
-@@ -1087,10 +1087,12 @@ 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;
-       }