diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0629-overlays-ghost-amp-Change-early-disable-sequence.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.10/950-0629-overlays-ghost-amp-Change-early-disable-sequence.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0629-overlays-ghost-amp-Change-early-disable-sequence.patch b/target/linux/bcm27xx/patches-5.10/950-0629-overlays-ghost-amp-Change-early-disable-sequence.patch new file mode 100644 index 0000000000..c40f7b04a6 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.10/950-0629-overlays-ghost-amp-Change-early-disable-sequence.patch @@ -0,0 +1,43 @@ +From c6ae428b0fa43bee35aa6de4fb2f5d5cc81460a4 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.com> +Date: Mon, 14 Jun 2021 15:07:38 +0100 +Subject: [PATCH] overlays: ghost-amp: Change early-disable sequence + +In the event that the ENABLE signal from the codec goes low before +RELAY2 has been enabled, wait until the full 1000ms has elapsed then +enable RELAY2 and jump to amp_on_wait, i.e. as if output had been +fully enabled then disabled, rather than returning to the amp_off +idle state. + +Signed-off-by: Phil Elwell <phil@raspberrypi.com> +--- + arch/arm/boot/dts/overlays/ghost-amp-overlay.dts | 14 ++++++++++---- + 1 file changed, 10 insertions(+), 4 deletions(-) + +--- a/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts ++++ b/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts +@@ -82,14 +82,20 @@ + + amp_on_1 { + set = <RELAY1 1>; +- amp_on = <GF_DELAY 1000>; +- amp_off = <ENABLE 0>; ++ amp_on_2 = <GF_DELAY 1000>; ++ amp_off = <GF_SHUTDOWN 0>; ++ fault = <FAULT 1>; ++ }; ++ ++ amp_on_2 { ++ set = <RELAY2 1>; ++ amp_on_wait = <ENABLE 0>; ++ amp_on = <GF_DELAY 1>; + fault = <FAULT 1>; + }; + + amp_on { +- set = <RELAY2 1>, +- <RELAYSSR 1>; ++ set = <RELAYSSR 1>; + amp_on_wait = <ENABLE 0>; + fault = <FAULT 1>; + }; |