diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0630-drm-vc4-A-present-but-empty-dmas-disables-audio.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0630-drm-vc4-A-present-but-empty-dmas-disables-audio.patch | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0630-drm-vc4-A-present-but-empty-dmas-disables-audio.patch b/target/linux/bcm27xx/patches-4.19/950-0630-drm-vc4-A-present-but-empty-dmas-disables-audio.patch deleted file mode 100644 index 080a7d991a..0000000000 --- a/target/linux/bcm27xx/patches-4.19/950-0630-drm-vc4-A-present-but-empty-dmas-disables-audio.patch +++ /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 -@@ -1099,10 +1099,12 @@ 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; - } - |