bcm27xx: import latest patches from the RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

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

1 files changed, 43 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0974-ASoC-cs42xx8-Only-define-cs42xx8_of_match-once.patch b/target/linux/bcm27xx/patches-5.4/950-0974-ASoC-cs42xx8-Only-define-cs42xx8_of_match-once.patch
new file mode 100644
index 0000000000..1c8e4d6699
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0974-ASoC-cs42xx8-Only-define-cs42xx8_of_match-once.patch
@@ -0,0 +1,43 @@
+From e84f00c45ad064f1503d2eb03d7600e59744f0e6 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Tue, 29 Sep 2020 15:03:34 +0100
+Subject: [PATCH] ASoC: cs42xx8: Only define cs42xx8_of_match once
+
+cs42xx8.c exports cs42xx8_of_match, so there's no need to redefine it
+in cs42xx8-i2c.c - doing so breaks linking when loadable module
+support is disabled. It would be tidy to use the exported match table
+in cs42xx8.c's of_match_table member, but an imported symbol can't be
+used in a module's MODULE_DEVICE_TABLE declaration. Instead, rename
+the duplicated declarations so as not to clash.
+
+See: https://github.com/raspberrypi/linux/issues/3873
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ sound/soc/codecs/cs42xx8-i2c.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+--- a/sound/soc/codecs/cs42xx8-i2c.c
++++ b/sound/soc/codecs/cs42xx8-i2c.c
+@@ -45,18 +45,18 @@ static struct i2c_device_id cs42xx8_i2c_
+ };
+ MODULE_DEVICE_TABLE(i2c, cs42xx8_i2c_id);
+ 
+-const struct of_device_id cs42xx8_of_match[] = {
++const struct of_device_id cs42xx8_i2c_of_match[] = {
+ 	{ .compatible = "cirrus,cs42448", .data = &cs42448_data, },
+ 	{ .compatible = "cirrus,cs42888", .data = &cs42888_data, },
+ 	{ /* sentinel */ }
+ };
+-MODULE_DEVICE_TABLE(of, cs42xx8_of_match);
++MODULE_DEVICE_TABLE(of, cs42xx8_i2c_of_match);
+ 
+ static struct i2c_driver cs42xx8_i2c_driver = {
+ 	.driver = {
+ 		.name = "cs42xx8",
+ 		.pm = &cs42xx8_pm,
+-		.of_match_table = cs42xx8_of_match,
++		.of_match_table = cs42xx8_i2c_of_match,
+ 	},
+ 	.probe = cs42xx8_i2c_probe,
+ 	.remove = cs42xx8_i2c_remove,