mediatek: add support for the new MT7623 Arm SoC

the support is still WIP. next steps are to make the pmic and ethernet work.
this is the first commit to make sure nothing gets lost.

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 47354

1 files changed, 123 insertions, 0 deletions

diff --git a/target/linux/mediatek/patches/0016-thermal-streamline-get_trend-callbacks.patch b/target/linux/mediatek/patches/0016-thermal-streamline-get_trend-callbacks.patch
new file mode 100644
index 0000000..99d490f
--- /dev/null
+++ b/target/linux/mediatek/patches/0016-thermal-streamline-get_trend-callbacks.patch
@@ -0,0 +1,123 @@
+From 5da86f6a2b4c2c318e153649dc8fd34fe73f8292 Mon Sep 17 00:00:00 2001
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Wed, 13 May 2015 10:52:35 +0200
+Subject: [PATCH 16/76] thermal: streamline get_trend callbacks
+
+The .get_trend callback in struct thermal_zone_device_ops has the prototype:
+
+	int (*get_trend) (struct thermal_zone_device *, int,
+			  enum thermal_trend *);
+
+whereas the .get_trend callback in struct thermal_zone_of_device_ops has:
+
+	int (*get_trend)(void *, long *);
+
+Streamline both prototypes and add the trip argument to the OF callback
+aswell and use enum thermal_trend * instead of an integer pointer.
+
+While the OF prototype may be the better one, this should be decided at
+framework level and not on OF level.
+
+Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
+---
+ drivers/thermal/of-thermal.c                       |   11 +--------
+ drivers/thermal/ti-soc-thermal/ti-thermal-common.c |   25 +++++++-------------
+ include/linux/thermal.h                            |    2 +-
+ 3 files changed, 10 insertions(+), 28 deletions(-)
+
+diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c
+index 03839df..c84404d 100644
+--- a/drivers/thermal/of-thermal.c
++++ b/drivers/thermal/of-thermal.c
+@@ -187,24 +187,15 @@ static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip,
+ 				enum thermal_trend *trend)
+ {
+ 	struct __thermal_zone *data = tz->devdata;
+-	long dev_trend;
+ 	int r;
+ 
+ 	if (!data->ops->get_trend)
+ 		return -EINVAL;
+ 
+-	r = data->ops->get_trend(data->sensor_data, &dev_trend);
++	r = data->ops->get_trend(data->sensor_data, trip, trend);
+ 	if (r)
+ 		return r;
+ 
+-	/* TODO: These intervals might have some thresholds, but in core code */
+-	if (dev_trend > 0)
+-		*trend = THERMAL_TREND_RAISING;
+-	else if (dev_trend < 0)
+-		*trend = THERMAL_TREND_DROPPING;
+-	else
+-		*trend = THERMAL_TREND_STABLE;
+-
+ 	return 0;
+ }
+ 
+diff --git a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
+index d3a42bf..ade78eb 100644
+--- a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
++++ b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c
+@@ -238,7 +238,7 @@ static int ti_thermal_get_trip_temp(struct thermal_zone_device *thermal,
+ 	return 0;
+ }
+ 
+-static int __ti_thermal_get_trend(void *p, long *trend)
++static int __ti_thermal_get_trend(void *p, int trip, enum thermal_trend *trend)
+ {
+ 	struct ti_thermal_data *data = p;
+ 	struct ti_bandgap *bgp;
+@@ -251,22 +251,6 @@ static int __ti_thermal_get_trend(void *p, long *trend)
+ 	if (ret)
+ 		return ret;
+ 
+-	*trend = tr;
+-
+-	return 0;
+-}
+-
+-/* Get the temperature trend callback functions for thermal zone */
+-static int ti_thermal_get_trend(struct thermal_zone_device *thermal,
+-				int trip, enum thermal_trend *trend)
+-{
+-	int ret;
+-	long tr;
+-
+-	ret = __ti_thermal_get_trend(thermal->devdata, &tr);
+-	if (ret)
+-		return ret;
+-
+ 	if (tr > 0)
+ 		*trend = THERMAL_TREND_RAISING;
+ 	else if (tr < 0)
+@@ -277,6 +261,13 @@ static int ti_thermal_get_trend(struct thermal_zone_device *thermal,
+ 	return 0;
+ }
+ 
++/* Get the temperature trend callback functions for thermal zone */
++static int ti_thermal_get_trend(struct thermal_zone_device *thermal,
++				int trip, enum thermal_trend *trend)
++{
++	return __ti_thermal_get_trend(thermal->devdata, trip, trend);
++}
++
+ /* Get critical temperature callback functions for thermal zone */
+ static int ti_thermal_get_crit_temp(struct thermal_zone_device *thermal,
+ 				    int *temp)
+diff --git a/include/linux/thermal.h b/include/linux/thermal.h
+index e9f2863..5c6a589 100644
+--- a/include/linux/thermal.h
++++ b/include/linux/thermal.h
+@@ -269,7 +269,7 @@ struct thermal_genl_event {
+  */
+ struct thermal_zone_of_device_ops {
+ 	int (*get_temp)(void *, int *);
+-	int (*get_trend)(void *, long *);
++	int (*get_trend)(void *, int, enum thermal_trend *);
+ 	int (*set_emul_temp)(void *, int);
+ };
+ 
+-- 
+1.7.10.4
+