44 lines
1.3 KiB
Diff
44 lines
1.3 KiB
Diff
From c6ae428b0fa43bee35aa6de4fb2f5d5cc81460a4 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Mon, 14 Jun 2021 15:07:38 +0100
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Subject: [PATCH] overlays: ghost-amp: Change early-disable sequence
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In the event that the ENABLE signal from the codec goes low before
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RELAY2 has been enabled, wait until the full 1000ms has elapsed then
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enable RELAY2 and jump to amp_on_wait, i.e. as if output had been
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fully enabled then disabled, rather than returning to the amp_off
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idle state.
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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/ghost-amp-overlay.dts | 14 ++++++++++----
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1 file changed, 10 insertions(+), 4 deletions(-)
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--- a/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts
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@@ -82,14 +82,20 @@
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amp_on_1 {
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set = <RELAY1 1>;
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- amp_on = <GF_DELAY 1000>;
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- amp_off = <ENABLE 0>;
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+ amp_on_2 = <GF_DELAY 1000>;
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+ amp_off = <GF_SHUTDOWN 0>;
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+ fault = <FAULT 1>;
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+ };
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+
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+ amp_on_2 {
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+ set = <RELAY2 1>;
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+ amp_on_wait = <ENABLE 0>;
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+ amp_on = <GF_DELAY 1>;
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fault = <FAULT 1>;
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};
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amp_on {
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- set = <RELAY2 1>,
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- <RELAYSSR 1>;
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+ set = <RELAYSSR 1>;
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amp_on_wait = <ENABLE 0>;
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fault = <FAULT 1>;
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};
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