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openwrt/target/linux/bcm27xx/patches-6.6/950-0974-Overlays-Add-specific-clk-producer-consumer-overlays.patch
Álvaro Fernández Rojas 8c405cdccc bcm27xx: add 6.6 kernel patches
The patches were generated from the RPi repo with the following command:
git format-patch v6.6.34..rpi-6.1.y

Some patches needed rebasing and, as usual, the applied and reverted, wireless
drivers, Github workflows, READMEs and defconfigs patches were removed.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-06-18 18:52:49 +02:00

224 lines
7.3 KiB
Diff

From d322faf96e474d15989860ae98b952c324740e20 Mon Sep 17 00:00:00 2001
From: j-schambacher <joerg@hifiberry.com>
Date: Mon, 11 Mar 2024 15:32:28 +0100
Subject: [PATCH 0974/1085] Overlays:Add specific clk-producer/-consumer
overlays for Hifiberry DAC+
As the easy switching of the I2S module bewteen clock producer/consumer
on the PI5 is not possible, two specific DT-overlays are introduced.
The DAC+PRO boards with onboard clocks use the -PRO overlay, the boards
without oscillators the -STD version.
The "hifiberry-dacplus,slave" parameter in the -STD overlay disables
the automatic clock detection inside the hifiberry-dacplus driver.
The former hifiberry-dacplus overlay is kept for compatibility but
will be deprecated.
Signed-off-by: j-schambacher <joerg@hifiberry.com>
---
arch/arm/boot/dts/overlays/Makefile | 2 +
arch/arm/boot/dts/overlays/README | 42 ++++++++++++
.../hifiberry-dacplus-pro-overlay.dts | 64 ++++++++++++++++++
.../hifiberry-dacplus-std-overlay.dts | 65 +++++++++++++++++++
4 files changed, 173 insertions(+)
create mode 100644 arch/arm/boot/dts/overlays/hifiberry-dacplus-pro-overlay.dts
create mode 100644 arch/arm/boot/dts/overlays/hifiberry-dacplus-std-overlay.dts
--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -91,6 +91,8 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
hifiberry-dac.dtbo \
hifiberry-dac8x.dtbo \
hifiberry-dacplus.dtbo \
+ hifiberry-dacplus-pro.dtbo \
+ hifiberry-dacplus-std.dtbo \
hifiberry-dacplusadc.dtbo \
hifiberry-dacplusadcpro.dtbo \
hifiberry-dacplusdsp.dtbo \
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -1819,6 +1819,48 @@ Params: 24db_digital_gain Allow ga
are switched off at all times.
+Name: hifiberry-dacplus-pro
+Info: Configures the HifiBerry DAC+ PRO audio card (onboard clocks)
+Load: dtoverlay=hifiberry-dacplus-pro,<param>=<val>
+Params: 24db_digital_gain Allow gain to be applied via the PCM512x codec
+ Digital volume control. Enable with
+ "dtoverlay=hifiberry-dacplus,24db_digital_gain"
+ (The default behaviour is that the Digital
+ volume control is limited to a maximum of
+ 0dB. ie. it can attenuate but not provide
+ gain. For most users, this will be desired
+ as it will prevent clipping. By appending
+ the 24dB_digital_gain parameter, the Digital
+ volume control will allow up to 24dB of
+ gain. If this parameter is enabled, it is the
+ responsibility of the user to ensure that
+ the Digital volume control is set to a value
+ that does not result in clipping/distortion!)
+ leds_off If set to 'true' the onboard indicator LEDs
+ are switched off at all times.
+
+
+Name: hifiberry-dacplus-std
+Info: Configures the HifiBerry DAC+ standard audio card (no onboard clocks)
+Load: dtoverlay=hifiberry-dacplus-std,<param>=<val>
+Params: 24db_digital_gain Allow gain to be applied via the PCM512x codec
+ Digital volume control. Enable with
+ "dtoverlay=hifiberry-dacplus,24db_digital_gain"
+ (The default behaviour is that the Digital
+ volume control is limited to a maximum of
+ 0dB. ie. it can attenuate but not provide
+ gain. For most users, this will be desired
+ as it will prevent clipping. By appending
+ the 24dB_digital_gain parameter, the Digital
+ volume control will allow up to 24dB of
+ gain. If this parameter is enabled, it is the
+ responsibility of the user to ensure that
+ the Digital volume control is set to a value
+ that does not result in clipping/distortion!)
+ leds_off If set to 'true' the onboard indicator LEDs
+ are switched off at all times.
+
+
Name: hifiberry-dacplusadc
Info: Configures the HifiBerry DAC+ADC audio card
Load: dtoverlay=hifiberry-dacplusadc,<param>=<val>
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/hifiberry-dacplus-pro-overlay.dts
@@ -0,0 +1,64 @@
+// Definitions for HiFiBerry DAC+ PRO, with onboard clocks
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "brcm,bcm2835";
+
+ fragment@0 {
+ target-path = "/";
+ __overlay__ {
+ dacpro_osc: dacpro_osc {
+ compatible = "hifiberry,dacpro-clk";
+ #clock-cells = <0>;
+ };
+ };
+ };
+
+ frag1: fragment@1 {
+ target = <&i2s_clk_consumer>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+
+ fragment@2 {
+ target = <&i2c1>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ pcm5122@4d {
+ #sound-dai-cells = <0>;
+ compatible = "ti,pcm5122";
+ reg = <0x4d>;
+ clocks = <&dacpro_osc>;
+ AVDD-supply = <&vdd_3v3_reg>;
+ DVDD-supply = <&vdd_3v3_reg>;
+ CPVDD-supply = <&vdd_3v3_reg>;
+ status = "okay";
+ };
+ hpamp: hpamp@60 {
+ compatible = "ti,tpa6130a2";
+ reg = <0x60>;
+ status = "disabled";
+ };
+ };
+ };
+
+ fragment@3 {
+ target = <&sound>;
+ hifiberry_dacplus: __overlay__ {
+ compatible = "hifiberry,hifiberry-dacplus";
+ i2s-controller = <&i2s_clk_consumer>;
+ status = "okay";
+ };
+ };
+
+ __overrides__ {
+ 24db_digital_gain =
+ <&hifiberry_dacplus>,"hifiberry,24db_digital_gain?";
+ leds_off = <&hifiberry_dacplus>,"hifiberry-dacplus,leds_off?";
+ };
+};
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/hifiberry-dacplus-std-overlay.dts
@@ -0,0 +1,65 @@
+// Definitions for HiFiBerry DAC+ Standard w/o onboard clocks
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "brcm,bcm2835";
+
+ fragment@0 {
+ target-path = "/";
+ __overlay__ {
+ dacpro_osc: dacpro_osc {
+ compatible = "hifiberry,dacpro-clk";
+ #clock-cells = <0>;
+ };
+ };
+ };
+
+ fragment@1 {
+ target = <&i2s_clk_producer>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+
+ fragment@2 {
+ target = <&i2c1>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ pcm5122@4d {
+ #sound-dai-cells = <0>;
+ compatible = "ti,pcm5122";
+ reg = <0x4d>;
+ clocks = <&dacpro_osc>;
+ AVDD-supply = <&vdd_3v3_reg>;
+ DVDD-supply = <&vdd_3v3_reg>;
+ CPVDD-supply = <&vdd_3v3_reg>;
+ status = "okay";
+ };
+ hpamp: hpamp@60 {
+ compatible = "ti,tpa6130a2";
+ reg = <0x60>;
+ status = "disabled";
+ };
+ };
+ };
+
+ fragment@3 {
+ target = <&sound>;
+ hifiberry_dacplus: __overlay__ {
+ compatible = "hifiberry,hifiberry-dacplus";
+ i2s-controller = <&i2s_clk_producer>;
+ hifiberry-dacplus,slave;
+ status = "okay";
+ };
+ };
+
+ __overrides__ {
+ 24db_digital_gain =
+ <&hifiberry_dacplus>,"hifiberry,24db_digital_gain?";
+ leds_off = <&hifiberry_dacplus>,"hifiberry-dacplus,leds_off?";
+ };
+};