Pisound: Set the spi-speed-hz for Pisound in the Device Tree overlay, and specify spi-speed-hz override for Pi 5.

Signed-off-by: Giedrius Trainavičius <[email protected]>

Author: gtrainavicius

arch/arm/boot/dts/overlays/Makefile

@@ -193,6 +193,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	piscreen.dtbo \
 	piscreen2r.dtbo \
 	pisound.dtbo \
+	pisound-pi5.dtbo \
 	pitft22.dtbo \
 	pitft28-capacitive.dtbo \
 	pitft28-resistive.dtbo \

arch/arm/boot/dts/overlays/README

@@ -3492,11 +3492,17 @@ Params: speed                   Display SPI bus speed
 
 
 Name:   pisound
-Info:   Configures the Blokas Labs pisound card
+Info:   Configures the Blokas Labs Pisound card
 Load:   dtoverlay=pisound
 Params: <None>
 
 
+Name:   pisound-pi5
+Info:   Pi 5 specific overlay override for Blokas Labs Pisound card, see pisound
+Load:   dtoverlay=pisound-pi5
+Params: <None>
+
+
 Name:   pitft22
 Info:   Adafruit PiTFT 2.2" screen
 Load:   dtoverlay=pitft22,<param>=<val>

arch/arm/boot/dts/overlays/overlay_map.dts

@@ -203,6 +203,16 @@
 		renamed = "miniuart-bt";
 	};
 
+	pisound {
+		bcm2835;
+		bcm2711;
+		bcm2712 = "pisound-pi5";
+	};
+
+	pisound-pi5 {
+		bcm2712;
+	};
+
 	pwm1 {
 		bcm2711;
 	};

arch/arm/boot/dts/overlays/pisound-overlay.dts

@@ -1,6 +1,6 @@
 /*
  * Pisound Linux kernel module.
- * Copyright (C) 2016-2017  Vilniaus Blokas UAB, https://blokas.io/pisound
+ * Copyright (C) 2016-2024  Vilniaus Blokas UAB, https://blokas.io/pisound
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -56,6 +56,7 @@
 				compatible = "blokaslabs,pisound-spi";
 				reg = <0>;
 				spi-max-frequency = <1000000>;
+				spi-speed-hz = <150000>;
 			};
 		};
 	};
@@ -76,6 +77,7 @@
 		__overlay__ {
 			compatible = "blokaslabs,pisound";
 			i2s-controller = <&i2s_clk_consumer>;
+			spi-controller = <&pisound_spi>;
 			status = "okay";
 
 			pinctrl-names = "default";

arch/arm/boot/dts/overlays/pisound-pi5-overlay.dts

@@ -0,0 +1,31 @@
+/*
+ * Pisound Linux kernel module.
+ * Copyright (C) 2016-2024  Vilniaus Blokas UAB, https://blokas.io/pisound
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include "pisound-overlay.dts"
+
+&pisound_spi {
+	spi-speed-hz = <100000>;
+};
+
+/ {
+	compatible = "brcm,bcm2712";
+};