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80 lines
2.8 KiB
Diff
80 lines
2.8 KiB
Diff
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From 714dd0cab06df74fb47c4b379df332fb0d2ff0de Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Tue, 8 Nov 2022 14:40:52 +0000
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Subject: [PATCH] overlays: Extend audremap to supports other pins
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Add the parameters pins_40_41 and pins_40_45 to support other audio pin
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options. Also, simplify the overlay using literal assignments.
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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arch/arm/boot/dts/overlays/README | 6 ++--
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.../boot/dts/overlays/audremap-overlay.dts | 29 ++++++-------------
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2 files changed, 13 insertions(+), 22 deletions(-)
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -680,10 +680,12 @@ Info: Switches PWM sound output to GPI
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Load: dtoverlay=audremap,<param>=<val>
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Params: swap_lr Reverse the channel allocation, which will also
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swap the audio jack outputs (default off)
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- enable_jack Don't switch off the audio jack output
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- (default off)
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+ enable_jack Don't switch off the audio jack output. Does
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+ nothing on BCM2711 (default off)
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pins_12_13 Select GPIOs 12 & 13 (default)
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pins_18_19 Select GPIOs 18 & 19
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+ pins_40_41 Select GPIOs 40 & 41
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+ pins_40_45 Select GPIOs 40 & 45
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Name: balena-fin
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--- a/arch/arm/boot/dts/overlays/audremap-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/audremap-overlay.dts
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@@ -7,28 +7,11 @@
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fragment@0 {
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target = <&audio_pins>;
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frag0: __overlay__ {
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+ brcm,pins = <12 13>;
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};
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};
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fragment@1 {
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- target = <&audio_pins>;
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- __overlay__ {
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- brcm,pins = < 12 13 >;
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- brcm,function = < 4 >; /* alt0 alt0 */
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- brcm,pull = < 0 >;
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- };
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- };
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-
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- fragment@2 {
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- target = <&audio_pins>;
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- __dormant__ {
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- brcm,pins = < 18 19 >;
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- brcm,function = < 2 >; /* alt5 alt5 */
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- brcm,pull = < 0 >;
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- };
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- };
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-
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- fragment@3 {
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target = <&chosen>;
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__overlay__ {
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bootargs = "snd_bcm2835.enable_headphones=1";
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@@ -38,7 +21,13 @@
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__overrides__ {
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swap_lr = <&frag0>, "swap_lr?";
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enable_jack = <&frag0>, "enable_jack?";
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- pins_12_13 = <0>,"+1-2";
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- pins_18_19 = <0>,"-1+2";
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+ pins_12_13 = <&frag0>,"brcm,pins:0=12",
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+ <&frag0>,"brcm,pins:4=13";
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+ pins_18_19 = <&frag0>,"brcm,pins:0=18",
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+ <&frag0>,"brcm,pins:4=19";
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+ pins_40_41 = <&frag0>,"brcm,pins:0=40",
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+ <&frag0>,"brcm,pins:4=41";
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+ pins_40_45 = <&frag0>,"brcm,pins:0=40",
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+ <&frag0>,"brcm,pins:4=45";
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};
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};
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