diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0536-overlays-ghost-amp-Add-DAC-mute-control.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.10/950-0536-overlays-ghost-amp-Add-DAC-mute-control.patch | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0536-overlays-ghost-amp-Add-DAC-mute-control.patch b/target/linux/bcm27xx/patches-5.10/950-0536-overlays-ghost-amp-Add-DAC-mute-control.patch new file mode 100644 index 0000000000..0a7187623b --- /dev/null +++ b/target/linux/bcm27xx/patches-5.10/950-0536-overlays-ghost-amp-Add-DAC-mute-control.patch @@ -0,0 +1,86 @@ +From e56470876bda3751a1926aa5876495e3678e363f Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.com> +Date: Fri, 16 Apr 2021 09:31:17 +0100 +Subject: [PATCH] overlays: ghost-amp: Add DAC mute control + +Signed-off-by: Phil Elwell <phil@raspberrypi.com> +--- + .../boot/dts/overlays/ghost-amp-overlay.dts | 28 +++++++++++-------- + 1 file changed, 17 insertions(+), 11 deletions(-) + +--- a/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts ++++ b/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts +@@ -4,10 +4,11 @@ + + #include <dt-bindings/gpio/gpio-fsm.h> + +-#define ENABLE GF_SW(0) +-#define FAULT GF_IP(0) // GPIO5 +-#define RELAY1 GF_OP(0) // GPIO22 +-#define RELAY2 GF_OP(1) // GPIO23 ++#define ENABLE GF_SW(0) ++#define FAULT GF_IP(0) // GPIO5 ++#define RELAY1 GF_OP(0) // GPIO22 ++#define RELAY2 GF_OP(1) // GPIO23 ++#define RELAYSSR GF_OP(2) // GPIO24 + + / { + compatible = "brcm,bcm2835"; +@@ -64,14 +65,16 @@ + gpio-line-names = "enable"; + input-gpios = <&gpio 5 1>; // FAULT (active low) + output-gpios = <&gpio 22 0>, // RELAY1 +- <&gpio 23 0>; // RELAY2 ++ <&gpio 23 0>, // RELAY2 ++ <&gpio 24 0>; // RELAYSSR + shutdown-timeout-ms = <1000>; + + amp_off { + start_state; + shutdown_state; + +- set = <RELAY2 0>, ++ set = <RELAYSSR 0>, ++ <RELAY2 0>, + <RELAY1 0>; + amp_on_1 = <ENABLE 1>; + fault = <FAULT 1>; +@@ -85,12 +88,14 @@ + }; + + amp_on { +- set = <RELAY2 1>; ++ set = <RELAY2 1>, ++ <RELAYSSR 1>; + amp_on_wait = <ENABLE 0>; + fault = <FAULT 1>; + }; + + amp_on_wait { ++ set = <RELAYSSR 0>; + amp_off_1 = <GF_DELAY (30*60*1000)>, + <GF_SHUTDOWN 0>; + amp_on = <ENABLE 1>; +@@ -107,7 +112,8 @@ + // Keep this a distinct state to prevent + // changes and for the diagnostic output + fault { +- set = <RELAY2 0>, ++ set = <RELAYSSR 0>, ++ <RELAY2 0>, + <RELAY1 0>; + amp_off = <FAULT 0>; + shutdown_state; +@@ -120,9 +126,9 @@ + target = <&gpio>; + __overlay__ { + ghost_amp_pins: ghost_amp_pins { +- brcm,pins = <5 22 23>; +- brcm,function = <0 1 1>; /* in out out */ +- brcm,pull = <2 0 0>; /* up none none */ ++ brcm,pins = <5 22 23 24>; ++ brcm,function = <0 1 1 1>; /* in out out out */ ++ brcm,pull = <2 0 0 0>; /* up none none none */ + }; + }; + }; |