bcm27xx: remove linux 5.10 compatibility

[openwrt/staging/chunkeey.git] / target / linux / bcm27xx / patches-5.10 / 950-0317-vc4_hdmi-Remove-firmware-logic-for-MAI-threshold-set.patch

diff --git a/target/linux/bcm27xx/patches-5.10/950-0317-vc4_hdmi-Remove-firmware-logic-for-MAI-threshold-set.patch b/target/linux/bcm27xx/patches-5.10/950-0317-vc4_hdmi-Remove-firmware-logic-for-MAI-threshold-set.patch
deleted file mode 100644 (file)
index ef776fa..0000000
--- a/target/linux/bcm27xx/patches-5.10/950-0317-vc4_hdmi-Remove-firmware-logic-for-MAI-threshold-set.patch
+++ /dev/null
@@ -1,47 +0,0 @@
-From 3c398513990aa0edc5b9ebfbdd2395623562c6e4 Mon Sep 17 00:00:00 2001
-From: Dom Cobley <popcornmix@gmail.com>
-Date: Thu, 25 Jun 2020 18:48:40 +0100
-Subject: [PATCH] vc4_hdmi: Remove firmware logic for MAI threshold
- setting
-
-This was a workaround for bugs in hardware on earlier Pi models
-and wasn't totally successful.
-
-It makes audio quality worse on a Pi4 at the higher sample rates
-
-Signed-off-by: Dom Cobley <popcornmix@gmail.com>
----
- drivers/gpu/drm/vc4/vc4_hdmi.c | 22 ++++++----------------
- 1 file changed, 6 insertions(+), 16 deletions(-)
-
---- a/drivers/gpu/drm/vc4/vc4_hdmi.c
-+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
-@@ -1086,22 +1086,12 @@ static int vc4_hdmi_audio_prepare(struct
-       audio_packet_config |= VC4_SET_FIELD(channel_mask,
-                                            VC4_HDMI_AUDIO_PACKET_CEA_MASK);
- 
--      /* Set the MAI threshold.  This logic mimics the firmware's. */
--      if (vc4_hdmi->audio.samplerate > 96000) {
--              HDMI_WRITE(HDMI_MAI_THR,
--                         VC4_SET_FIELD(0x12, VC4_HD_MAI_THR_DREQHIGH) |
--                         VC4_SET_FIELD(0x12, VC4_HD_MAI_THR_DREQLOW));
--      } else if (vc4_hdmi->audio.samplerate > 48000) {
--              HDMI_WRITE(HDMI_MAI_THR,
--                         VC4_SET_FIELD(0x14, VC4_HD_MAI_THR_DREQHIGH) |
--                         VC4_SET_FIELD(0x12, VC4_HD_MAI_THR_DREQLOW));
--      } else {
--              HDMI_WRITE(HDMI_MAI_THR,
--                         VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_PANICHIGH) |
--                         VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_PANICLOW) |
--                         VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_DREQHIGH) |
--                         VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_DREQLOW));
--      }
-+      /* Set the MAI threshold */
-+      HDMI_WRITE(HDMI_MAI_THR,
-+                 VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_PANICHIGH) |
-+                 VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_PANICLOW) |
-+                 VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_DREQHIGH) |
-+                 VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_DREQLOW));
- 
-       HDMI_WRITE(HDMI_MAI_CONFIG,
-                  VC4_HDMI_MAI_CONFIG_BIT_REVERSE |