target/linux/bcm27xx/patches-6.1/950-0803-overlays-audremap-Document-CM4-40-41-restriction.patch

   1 From 6f4106f7a7fdcbc03290008713915b4122988c90 Mon Sep 17 00:00:00 2001
   2 From: James Hughes <JamesH65@users.noreply.github.com>
   3 Date: Wed, 5 Jul 2023 15:43:30 +0100
   4 Subject: [PATCH] overlays: audremap: Document CM4 40&41 restriction
   5
   6 Update audremap information to state pins 40,41 are not available on the CM4.
   7
   8 Signed-off-by: James Hughes (james.hughes@raspberrypi.com)
   9 ---
  10  arch/arm/boot/dts/overlays/README | 3 ++-
  11  1 file changed, 2 insertions(+), 1 deletion(-)
  12
  13 --- a/arch/arm/boot/dts/overlays/README
  14 +++ b/arch/arm/boot/dts/overlays/README
  15 @@ -703,7 +703,8 @@ Params: swap_lr                 Reverse
  16                                  nothing on BCM2711 (default off)
  17          pins_12_13              Select GPIOs 12 & 13 (default)
  18          pins_18_19              Select GPIOs 18 & 19
  19 -        pins_40_41              Select GPIOs 40 & 41
  20 +        pins_40_41              Select GPIOs 40 & 41 (not available on CM4, used
  21 +                                for other purposes)
  22          pins_40_45              Select GPIOs 40 & 45 (don't use on BCM2711 - the
  23                                  pins are on different controllers)
  24