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From ba0b41445ee8a911ed780564788fbd58c34a62fa Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Mon, 21 Nov 2022 14:18:57 +0000
Subject: [PATCH] overlays: audremap: Include the fsels values
Add the alt function selectors, and document that pins_40_45 is not
suitable for BCM2711 because the pins are split across the two PWM
interfaces.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
arch/arm/boot/dts/overlays/README | 3 ++-
arch/arm/boot/dts/overlays/audremap-overlay.dts | 12 ++++++++----
2 files changed, 10 insertions(+), 5 deletions(-)
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -685,7 +685,8 @@ Params: swap_lr Reverse
pins_12_13 Select GPIOs 12 & 13 (default)
pins_18_19 Select GPIOs 18 & 19
pins_40_41 Select GPIOs 40 & 41
- pins_40_45 Select GPIOs 40 & 45
+ pins_40_45 Select GPIOs 40 & 45 (don't use on BCM2711 - the
+ pins are on different controllers)
Name: balena-fin
--- a/arch/arm/boot/dts/overlays/audremap-overlay.dts
+++ b/arch/arm/boot/dts/overlays/audremap-overlay.dts
@@ -22,12 +22,16 @@
swap_lr = <&frag0>, "swap_lr?";
enable_jack = <&frag0>, "enable_jack?";
pins_12_13 = <&frag0>,"brcm,pins:0=12",
- <&frag0>,"brcm,pins:4=13";
+ <&frag0>,"brcm,pins:4=13",
+ <&frag0>,"brcm,function:0=4";
pins_18_19 = <&frag0>,"brcm,pins:0=18",
- <&frag0>,"brcm,pins:4=19";
+ <&frag0>,"brcm,pins:4=19",
+ <&frag0>,"brcm,function:0=2";
pins_40_41 = <&frag0>,"brcm,pins:0=40",
- <&frag0>,"brcm,pins:4=41";
+ <&frag0>,"brcm,pins:4=41",
+ <&frag0>,"brcm,function:0=4";
pins_40_45 = <&frag0>,"brcm,pins:0=40",
- <&frag0>,"brcm,pins:4=45";
+ <&frag0>,"brcm,pins:4=45",
+ <&frag0>,"brcm,function:0=4";
};
};
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