On raspberry pi 4b rev 1.1 audremap conflicts:
[ 3.329725] pinctrl-bcm2835 fe200000.gpio: pin gpio18 already requested by fe00b840.mailbox; cannot claim for fe203000.i2s
[ 3.329744] pinctrl-bcm2835 fe200000.gpio: error -EINVAL: pin-18 (fe203000.i2s)
[ 3.329752] pinctrl-bcm2835 fe200000.gpio: error -EINVAL: could not request pin 18 (gpio18) from group gpio18 on device pinctrl-bcm2711
[ 3.329758] bcm2835-i2s fe203000.i2s: Error applying setting, reverse things back
in my config.txt
# For more options and information see
# http://rptl.io/configtxt
# Some settings may impact device functionality. See link above for details
# Uncomment some or all of these to enable the optional hardware interfaces
dtparam=i2c_arm=on
dtparam=i2s=on
dtparam=spi=on
# Enable audio (loads snd_bcm2835)
dtparam=audio=off
# Additional overlays and parameters are documented
# /boot/firmware/overlays/README
# Automatically load overlays for detected cameras
camera_auto_detect=1
# Automatically load overlays for detected DSI displays
display_auto_detect=1
# Automatically load initramfs files, if found
auto_initramfs=1
# Enable DRM VC4 V3D driver
dtoverlay=vc4-kms-v3d
max_framebuffers=2
# Don't have the firmware create an initial video= setting in cmdline.txt.
# Use the kernel's default instead.
disable_fw_kms_setup=1
# Run in 64-bit mode
arm_64bit=1
# Disable compensation for displays with overscan
disable_overscan=1
# Run as fast as firmware / board allows
arm_boost=1
[cm4]
# Enable host mode on the 2711 built-in XHCI USB controller.
# This line should be removed if the legacy DWC2 controller is required
# (e.g. for USB device mode) or if USB support is not required.
otg_mode=1
[cm5]
dtoverlay=dwc2,dr_mode=host
[all]
# Habilitamos el hat de audio
dtoverlay=audremap,pins_18_19
