lantiq: Add support for linux 4.4

The following patches were dropped because they are already applied
upstream:
- 0038-MIPS-lantiq-fpi-on-ar9.patch
- 0039-MIPS-lantiq-initialize-usb-on-boot.patch
- 0042-USB-DWC2-big-endian-support.patch
- 0043-gpio-stp-xway-fix-phy-mask.patch

All other patches were simply refreshed, except the following:
- 0001-MIPS-lantiq-add-pcie-driver.patch
  Changes to arch/mips/lantiq/xway/sysctrl.c (these changes disabled
  some PMU gates for the vrx200 / VR9 SoCs) were removed since the
  upstream kernel disables unused PMU gates automatically (since
  95135bfa7ead1becc2879230f72583dde2b71a0c
  "MIPS: Lantiq: Deactivate most of the devices by default").
- 0025-NET-MIPS-lantiq-adds-xrx200-net.patch
  Since OpenWrt commit 55ba20afcc2fe785146316e5be2c2473cb329885 drivers
  should use of_get_mac_address(). of_get_mac_address_mtd is not
  available for drivers anymore since it's called automatically within
  of_get_mac_address().
- 0028-NET-lantiq-various-etop-fixes.patch
  Same changes as in 0025-NET-MIPS-lantiq-adds-xrx200-net.patch

While refreshing the kernel configuration SPI support had to be moved to
config-4.4 because otherwise M25P80 was disabled.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

SVN-Revision: 48307

1 files changed, 68 insertions, 0 deletions

diff --git a/target/linux/lantiq/patches-4.4/0012-pinctrl-lantiq-fix-up-pinmux.patch b/target/linux/lantiq/patches-4.4/0012-pinctrl-lantiq-fix-up-pinmux.patch
new file mode 100644
index 0000000000..e03fe085be
--- /dev/null
+++ b/target/linux/lantiq/patches-4.4/0012-pinctrl-lantiq-fix-up-pinmux.patch
@@ -0,0 +1,68 @@
+From 25494c55a4007a1409f53ddbafd661636e47ea34 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Fri, 9 Aug 2013 20:38:15 +0200
+Subject: [PATCH 12/36] pinctrl/lantiq: fix up pinmux
+
+We found out how to set the gphy led pinmuxing.
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ drivers/pinctrl/pinctrl-xway.c |   28 ++++++++++++++++++++++++++--
+ 1 file changed, 26 insertions(+), 2 deletions(-)
+
+--- a/drivers/pinctrl/pinctrl-xway.c
++++ b/drivers/pinctrl/pinctrl-xway.c
+@@ -609,10 +609,9 @@ static struct pinctrl_desc xway_pctrl_de
+ 	.confops	= &xway_pinconf_ops,
+ };
+ 
+-static inline int xway_mux_apply(struct pinctrl_dev *pctrldev,
++static int mux_apply(struct ltq_pinmux_info *info,
+ 				int pin, int mux)
+ {
+-	struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev);
+ 	int port = PORT(pin);
+ 	u32 alt1_reg = GPIO_ALT1(pin);
+ 
+@@ -632,6 +631,14 @@ static inline int xway_mux_apply(struct
+ 	return 0;
+ }
+ 
++static inline int xway_mux_apply(struct pinctrl_dev *pctrldev,
++				int pin, int mux)
++{
++	struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev);
++
++	return mux_apply(info, pin, mux);
++}
++
+ static const struct ltq_cfg_param xway_cfg_params[] = {
+ 	{"lantiq,pull",		LTQ_PINCONF_PARAM_PULL},
+ 	{"lantiq,open-drain",	LTQ_PINCONF_PARAM_OPEN_DRAIN},
+@@ -682,6 +689,18 @@ static int xway_gpio_dir_out(struct gpio
+ 	return 0;
+ }
+ 
++static int xway_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
++{
++	struct ltq_pinmux_info *info = dev_get_drvdata(chip->dev);
++	int i;
++
++	for (i = 0; i < info->num_exin; i++)
++		if (info->exin[i] == offset)
++			return ltq_eiu_get_irq(i);
++
++	return -1;
++}
++
+ static struct gpio_chip xway_chip = {
+ 	.label = "gpio-xway",
+ 	.direction_input = xway_gpio_dir_in,
+@@ -690,6 +709,7 @@ static struct gpio_chip xway_chip = {
+ 	.set = xway_gpio_set,
+ 	.request = gpiochip_generic_request,
+ 	.free = gpiochip_generic_free,
++	.to_irq = xway_gpio_to_irq,
+ 	.base = -1,
+ };
+