Adding Pisound Micro kernel module

Signed-off-by: Giedrius Trainavičius <giedrius@blokas.io>

Author: gtrainavicius

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -57,6 +57,7 @@ axis	Axis Communications AB
 bananapi BIPAI KEJI LIMITED
 bhf	Beckhoff Automation GmbH & Co. KG
 bitmain	Bitmain Technologies
+blokas	Vilniaus Blokas UAB
 blokaslabs	Vilniaus Blokas UAB
 boe	BOE Technology Group Co., Ltd.
 bosch	Bosch Sensortec GmbH

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -222,7 +222,7 @@ patternProperties:
     description: Bitmain Technologies
   "^blaize,.*":
     description: Blaize, Inc.
-  "^blokaslabs,.*":
+  "^blokas(labs)?,.*":
     description: Vilniaus Blokas UAB
   "^blutek,.*":
     description: BluTek Power

sound/drivers/Kconfig

@@ -273,4 +273,13 @@ config SND_PIMIDI
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-pimidi.
 
+config SND_PISOUND_MICRO
+	tristate "Pisound Micro driver"
+	depends on SND_SEQUENCER && CRC8
+	help
+	  Say Y here to include support for Blokas Pisound Micro.
+
+	  To compile this driver as modules, choose M here: the modules
+	  will be called snd-soc-upisnd-ctrl and snd-soc-upisnd-codec.
+
 endif	# SND_DRIVERS

sound/drivers/Makefile

@@ -27,4 +27,4 @@ obj-$(CONFIG_SND_MTS64) += snd-mts64.o
 obj-$(CONFIG_SND_PIMIDI) += snd-pimidi.o
 obj-$(CONFIG_SND_PORTMAN2X4) += snd-portman2x4.o
 
-obj-$(CONFIG_SND) += opl3/ opl4/ mpu401/ vx/ pcsp/
+obj-$(CONFIG_SND) += opl3/ opl4/ mpu401/ vx/ pcsp/ upisnd/

sound/drivers/upisnd/Makefile

@@ -0,0 +1,23 @@
+# Pisound Micro Linux kernel module.
+# Copyright (C) 2017-2025  Vilniaus Blokas UAB, https://blokas.io/
+#
+# 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.
+#
+
+-include $(shell pwd)/Makefile.dev
+
+ifdef M
+-include $(M)/Makefile.dev
+endif
+
+obj-$(CONFIG_SND_PISOUND_MICRO) := snd-soc-upisnd-ctrl.o snd-soc-upisnd-codec.o
+snd-soc-upisnd-ctrl-objs := upisnd_module.o upisnd_ctrl.o upisnd_comm.o upisnd_sound.o upisnd_midi.o upisnd_pins.o upisnd_gpio.o upisnd_sysfs.o upisnd_utils.o
+snd-soc-upisnd-codec-objs := upisnd_codec.o