diff --git a/projects/Rockchip/patches/linux/default/linux-1002-for-libreelec.patch b/projects/Rockchip/patches/linux/default/linux-1002-for-libreelec.patch
index 1e9c2e0b51..6e8a5583d2 100644
--- a/projects/Rockchip/patches/linux/default/linux-1002-for-libreelec.patch
+++ b/projects/Rockchip/patches/linux/default/linux-1002-for-libreelec.patch
@@ -647,3 +647,44 @@ index 3d98e2251ea5..b201700ccc8a 100644
  	.num_irqs = ARRAY_SIZE(rockchip_vdpu2_irqs),
 
 
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Alex Bee <knaerzche@gmail.com>
+Date: Sat, 30 Oct 2021 12:19:19 +0200
+Subject: [PATCH] WIP: drm: bridge: dw-hdmi: switch from .hw_parmas to .prepare
+ for i2s
+
+Seems to be the only way to get AES bits correctly as set by
+userspace.
+TODO: check other consequences.
+
+Signed-off-by: Alex Bee <knaerzche@gmail.com>
+---
+ drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c
+index feb04f127b55..f7631f2e34c5 100644
+--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c
++++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c
+@@ -34,9 +34,9 @@ static inline u8 hdmi_read(struct dw_hdmi_i2s_audio_data *audio, int offset)
+ 	return audio->read(hdmi, offset);
+ }
+ 
+-static int dw_hdmi_i2s_hw_params(struct device *dev, void *data,
+-				 struct hdmi_codec_daifmt *fmt,
+-				 struct hdmi_codec_params *hparms)
++static int dw_hdmi_i2s_prepare(struct device *dev, void *data,
++			       struct hdmi_codec_daifmt *fmt,
++			       struct hdmi_codec_params *hparms)
+ {
+ 	struct dw_hdmi_i2s_audio_data *audio = data;
+ 	struct dw_hdmi *hdmi = audio->hdmi;
+@@ -171,7 +171,7 @@ static int dw_hdmi_i2s_hook_plugged_cb(struct device *dev, void *data,
+ }
+ 
+ static const struct hdmi_codec_ops dw_hdmi_i2s_ops = {
+-	.hw_params	= dw_hdmi_i2s_hw_params,
++	.prepare	= dw_hdmi_i2s_prepare,
+ 	.audio_startup  = dw_hdmi_i2s_audio_startup,
+ 	.audio_shutdown	= dw_hdmi_i2s_audio_shutdown,
+ 	.get_eld	= dw_hdmi_i2s_get_eld,