brcm2708: add linux 4.4 support

- random-bcm2708 and spi-bcm2708 have been removed.
- sound-soc-bcm2708-i2s has been upstreamed as sound-soc-bcm2835-i2s.

Let's keep linux 4.1 for a while, since linux 4.4 appears to have some issues
with multicast traffic on RPi ethernet:
https://gist.github.com/Noltari/5b1cfdecce5ed4bc08fd

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

SVN-Revision: 48266

1 files changed, 36 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.4/0017-bcm2835-i2s-Eliminate-debugfs-directory-error.patch b/target/linux/brcm2708/patches-4.4/0017-bcm2835-i2s-Eliminate-debugfs-directory-error.patch
new file mode 100644
index 0000000000..1caa347237
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0017-bcm2835-i2s-Eliminate-debugfs-directory-error.patch
@@ -0,0 +1,36 @@
+From 45995262bd8d5194e9430d2a826c84ed28c408eb Mon Sep 17 00:00:00 2001
+From: Matthias Reichl <hias@horus.com>
+Date: Sun, 11 Oct 2015 15:49:51 +0200
+Subject: [PATCH 017/127] bcm2835-i2s: Eliminate debugfs directory error
+
+Code ported from bcm2708-i2s driver in Raspberry Pi tree.
+
+RPi commit fd7d7a3dbe9262d16971ef81c234ed28c6499dd7 ("bcm2708:
+Eliminate i2s debugfs directory error")
+
+Qualify the two regmap ranges uses by bcm2708-i2s ('-i2s' and '-clk')
+to avoid the name clash when registering debugfs entries.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+---
+ sound/soc/bcm/bcm2835-i2s.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/sound/soc/bcm/bcm2835-i2s.c
++++ b/sound/soc/bcm/bcm2835-i2s.c
+@@ -782,6 +782,7 @@ static const struct regmap_config bcm283
+ 		.precious_reg = bcm2835_i2s_precious_reg,
+ 		.volatile_reg = bcm2835_i2s_volatile_reg,
+ 		.cache_type = REGCACHE_RBTREE,
++		.name = "i2s",
+ 	},
+ 	{
+ 		.reg_bits = 32,
+@@ -790,6 +791,7 @@ static const struct regmap_config bcm283
+ 		.max_register = BCM2835_CLK_PCMDIV_REG,
+ 		.volatile_reg = bcm2835_clk_volatile_reg,
+ 		.cache_type = REGCACHE_RBTREE,
++		.name = "clk",
+ 	},
+ };
+