bcm27xx: add support for linux v5.15

Build system: x86_64
Build-tested: bcm2708, bcm2709, bcm2710, bcm2711
Run-tested: bcm2708/RPiB+, bcm2709/RPi3B, bcm2710/RPi3B, bcm2711/RPi4B

Signed-off-by: Marty Jones <mj8263788@gmail.com>
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 75 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.15/950-0673-ASoC-bcm-allo-piano-dac-plus-Remove-unnecessary-cons.patch b/target/linux/bcm27xx/patches-5.15/950-0673-ASoC-bcm-allo-piano-dac-plus-Remove-unnecessary-cons.patch
new file mode 100644
index 0000000000..a98d09e94c
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.15/950-0673-ASoC-bcm-allo-piano-dac-plus-Remove-unnecessary-cons.patch
@@ -0,0 +1,75 @@
+From fb7adf252e4813f86d2871448a0bdb586bfcd1f1 Mon Sep 17 00:00:00 2001
+From: Nathan Chancellor <nathan@kernel.org>
+Date: Mon, 31 Jan 2022 17:20:55 -0700
+Subject: [PATCH] ASoC: bcm: allo-piano-dac-plus: Remove unnecessary
+ const specifiers
+
+Clang warns:
+
+  sound/soc/bcm/allo-piano-dac-plus.c:66:14: warning: duplicate 'const' declaration specifier [-Wduplicate-decl-specifier]
+  static const SOC_ENUM_SINGLE_DECL(allo_piano_mode_enum,
+               ^
+  ./include/sound/soc.h:355:2: note: expanded from macro 'SOC_ENUM_SINGLE_DECL'
+          SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
+          ^
+  ./include/sound/soc.h:352:2: note: expanded from macro 'SOC_ENUM_DOUBLE_DECL'
+          const struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
+          ^
+  sound/soc/bcm/allo-piano-dac-plus.c:75:14: warning: duplicate 'const' declaration specifier [-Wduplicate-decl-specifier]
+  static const SOC_ENUM_SINGLE_DECL(allo_piano_dual_mode_enum,
+               ^
+  ./include/sound/soc.h:355:2: note: expanded from macro 'SOC_ENUM_SINGLE_DECL'
+          SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
+          ^
+  ./include/sound/soc.h:352:2: note: expanded from macro 'SOC_ENUM_DOUBLE_DECL'
+          const struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
+          ^
+  sound/soc/bcm/allo-piano-dac-plus.c:96:14: warning: duplicate 'const' declaration specifier [-Wduplicate-decl-specifier]
+  static const SOC_ENUM_SINGLE_DECL(allo_piano_enum,
+               ^
+  ./include/sound/soc.h:355:2: note: expanded from macro 'SOC_ENUM_SINGLE_DECL'
+          SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
+          ^
+  ./include/sound/soc.h:352:2: note: expanded from macro 'SOC_ENUM_DOUBLE_DECL'
+          const struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
+          ^
+  3 warnings generated.
+
+SOC_VALUE_ENUM_DOUBLE_DECL already has a const specifier. Remove the duplicate
+const specifiers to clean up the warnings.
+
+Fixes: 42444979e710 ("Add support for all the downstream rpi sound card drivers")
+Signed-off-by: Nathan Chancellor <nathan@kernel.org>
+---
+ sound/soc/bcm/allo-piano-dac-plus.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+--- a/sound/soc/bcm/allo-piano-dac-plus.c
++++ b/sound/soc/bcm/allo-piano-dac-plus.c
+@@ -63,7 +63,7 @@ static const char * const allo_piano_mod
+ 	"2.2",
+ };
+ 
+-static const SOC_ENUM_SINGLE_DECL(allo_piano_mode_enum,
++static SOC_ENUM_SINGLE_DECL(allo_piano_mode_enum,
+ 		0, 0, allo_piano_mode_texts);
+ 
+ static const char * const allo_piano_dual_mode_texts[] = {
+@@ -72,7 +72,7 @@ static const char * const allo_piano_dua
+ 	"Dual-Stereo",
+ };
+ 
+-static const SOC_ENUM_SINGLE_DECL(allo_piano_dual_mode_enum,
++static SOC_ENUM_SINGLE_DECL(allo_piano_dual_mode_enum,
+ 		0, 0, allo_piano_dual_mode_texts);
+ 
+ static const char * const allo_piano_dsp_low_pass_texts[] = {
+@@ -93,7 +93,7 @@ static const char * const allo_piano_dsp
+ 	"200",
+ };
+ 
+-static const SOC_ENUM_SINGLE_DECL(allo_piano_enum,
++static SOC_ENUM_SINGLE_DECL(allo_piano_enum,
+ 		0, 0, allo_piano_dsp_low_pass_texts);
+ 
+ static int __snd_allo_piano_dsp_program(struct snd_soc_pcm_runtime *rtd,