These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

6 files changed, 83 insertions, 9 deletions

diff --git a/kernel/include/linux/regulator/consumer.h b/kernel/include/linux/regulator/consumer.h
index f8a689ed6..9e0e76992 100644
--- a/kernel/include/linux/regulator/consumer.h
+++ b/kernel/include/linux/regulator/consumer.h
@@ -550,8 +550,24 @@ static inline int regulator_count_voltages(struct regulator *regulator)
 {
 	return 0;
 }
+
+static inline int regulator_list_voltage(struct regulator *regulator, unsigned selector)
+{
+	return -EINVAL;
+}
+
 #endif
 
+static inline int regulator_set_voltage_triplet(struct regulator *regulator,
+						int min_uV, int target_uV,
+						int max_uV)
+{
+	if (regulator_set_voltage(regulator, target_uV, max_uV) == 0)
+		return 0;
+
+	return regulator_set_voltage(regulator, min_uV, max_uV);
+}
+
 static inline int regulator_set_voltage_tol(struct regulator *regulator,
 					    int new_uV, int tol_uV)
 {
diff --git a/kernel/include/linux/regulator/da9211.h b/kernel/include/linux/regulator/da9211.h
index 5dd65acc2..a43a5ca11 100644
--- a/kernel/include/linux/regulator/da9211.h
+++ b/kernel/include/linux/regulator/da9211.h
@@ -1,16 +1,16 @@
 /*
- * da9211.h - Regulator device driver for DA9211/DA9213
- * Copyright (C) 2014  Dialog Semiconductor Ltd.
+ * da9211.h - Regulator device driver for DA9211/DA9213/DA9215
+ * Copyright (C) 2015  Dialog Semiconductor Ltd.
  *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
  *
- * This library is distributed in the hope that it will be useful,
+ * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  */
 
 #ifndef __LINUX_REGULATOR_DA9211_H
@@ -23,6 +23,7 @@
 enum da9211_chip_id {
 	DA9211,
 	DA9213,
+	DA9215,
 };
 
 struct da9211_pdata {
diff --git a/kernel/include/linux/regulator/driver.h b/kernel/include/linux/regulator/driver.h
index fffa688ac..9c2903e58 100644
--- a/kernel/include/linux/regulator/driver.h
+++ b/kernel/include/linux/regulator/driver.h
@@ -91,6 +91,7 @@ struct regulator_linear_range {
  * @set_current_limit: Configure a limit for a current-limited regulator.
  *                     The driver should select the current closest to max_uA.
  * @get_current_limit: Get the configured limit for a current-limited regulator.
+ * @set_input_current_limit: Configure an input limit.
  *
  * @set_mode: Set the configured operating mode for the regulator.
  * @get_mode: Get the configured operating mode for the regulator.
@@ -111,6 +112,7 @@ struct regulator_linear_range {
  *               to stabilise after being set to a new value, in microseconds.
  *               The function provides the from and to voltage selector, the
  *               function should return the worst case.
+ * @set_soft_start: Enable soft start for the regulator.
  *
  * @set_suspend_voltage: Set the voltage for the regulator when the system
  *                       is suspended.
@@ -121,6 +123,9 @@ struct regulator_linear_range {
  * @set_suspend_mode: Set the operating mode for the regulator when the
  *                    system is suspended.
  *
+ * @set_pull_down: Configure the regulator to pull down when the regulator
+ *		   is disabled.
+ *
  * This struct describes regulator operations which can be implemented by
  * regulator chip drivers.
  */
@@ -142,6 +147,9 @@ struct regulator_ops {
 				 int min_uA, int max_uA);
 	int (*get_current_limit) (struct regulator_dev *);
 
+	int (*set_input_current_limit) (struct regulator_dev *, int lim_uA);
+	int (*set_over_current_protection) (struct regulator_dev *);
+
 	/* enable/disable regulator */
 	int (*enable) (struct regulator_dev *);
 	int (*disable) (struct regulator_dev *);
@@ -158,6 +166,8 @@ struct regulator_ops {
 				     unsigned int old_selector,
 				     unsigned int new_selector);
 
+	int (*set_soft_start) (struct regulator_dev *);
+
 	/* report regulator status ... most other accessors report
 	 * control inputs, this reports results of combining inputs
 	 * from Linux (and other sources) with the actual load.
@@ -187,6 +197,8 @@ struct regulator_ops {
 
 	/* set regulator suspend operating mode (defined in consumer.h) */
 	int (*set_suspend_mode) (struct regulator_dev *, unsigned int mode);
+
+	int (*set_pull_down) (struct regulator_dev *);
 };
 
 /*
@@ -233,6 +245,7 @@ enum regulator_type {
  * @linear_min_sel: Minimal selector for starting linear mapping
  * @fixed_uV: Fixed voltage of rails.
  * @ramp_delay: Time to settle down after voltage change (unit: uV/us)
+ * @min_dropout_uV: The minimum dropout voltage this regulator can handle
  * @linear_ranges: A constant table of possible voltage ranges.
  * @n_linear_ranges: Number of entries in the @linear_ranges table.
  * @volt_table: Voltage mapping table (if table based mapping)
@@ -280,6 +293,7 @@ struct regulator_desc {
 	unsigned int linear_min_sel;
 	int fixed_uV;
 	unsigned int ramp_delay;
+	int min_dropout_uV;
 
 	const struct regulator_linear_range *linear_ranges;
 	int n_linear_ranges;
diff --git a/kernel/include/linux/regulator/machine.h b/kernel/include/linux/regulator/machine.h
index b07562e08..a1067d0b3 100644
--- a/kernel/include/linux/regulator/machine.h
+++ b/kernel/include/linux/regulator/machine.h
@@ -75,6 +75,8 @@ struct regulator_state {
  *
  * @min_uA: Smallest current consumers may set.
  * @max_uA: Largest current consumers may set.
+ * @ilim_uA: Maximum input current.
+ * @system_load: Load that isn't captured by any consumer requests.
  *
  * @valid_modes_mask: Mask of modes which may be configured by consumers.
  * @valid_ops_mask: Operations which may be performed by consumers.
@@ -86,6 +88,8 @@ struct regulator_state {
  *           applied.
  * @apply_uV: Apply the voltage constraint when initialising.
  * @ramp_disable: Disable ramp delay when initialising or when setting voltage.
+ * @soft_start: Enable soft start so that voltage ramps slowly.
+ * @pull_down: Enable pull down when regulator is disabled.
  *
  * @input_uV: Input voltage for regulator when supplied by another regulator.
  *
@@ -111,6 +115,9 @@ struct regulation_constraints {
 	/* current output range (inclusive) - for current control */
 	int min_uA;
 	int max_uA;
+	int ilim_uA;
+
+	int system_load;
 
 	/* valid regulator operating modes for this machine */
 	unsigned int valid_modes_mask;
@@ -138,6 +145,9 @@ struct regulation_constraints {
 	unsigned boot_on:1;	/* bootloader/firmware enabled regulator */
 	unsigned apply_uV:1;	/* apply uV constraint if min == max */
 	unsigned ramp_disable:1; /* disable ramp delay */
+	unsigned soft_start:1;	/* ramp voltage slowly */
+	unsigned pull_down:1;	/* pull down resistor when regulator off */
+	unsigned over_current_protection:1; /* auto disable on over current */
 };
 
 /**
diff --git a/kernel/include/linux/regulator/max8973-regulator.h b/kernel/include/linux/regulator/max8973-regulator.h
index f8acc052e..f6a8a16a0 100644
--- a/kernel/include/linux/regulator/max8973-regulator.h
+++ b/kernel/include/linux/regulator/max8973-regulator.h
@@ -58,6 +58,9 @@
  *		control signal from EN input pin. If it is false then
  *		voltage output will be enabled/disabled through EN bit of
  *		device register.
+ * @enable_gpio: Enable GPIO. If EN pin is controlled through GPIO from host
+ *		then GPIO number can be provided. If no GPIO controlled then
+ *		it should be -1.
  * @dvs_gpio: GPIO for dvs. It should be -1 if this is tied with fixed logic.
  * @dvs_def_state: Default state of dvs. 1 if it is high else 0.
  */
@@ -65,6 +68,7 @@ struct max8973_regulator_platform_data {
 	struct regulator_init_data *reg_init_data;
 	unsigned long control_flags;
 	bool enable_ext_control;
+	int enable_gpio;
 	int dvs_gpio;
 	unsigned dvs_def_state:1;
 };
diff --git a/kernel/include/linux/regulator/mt6311.h b/kernel/include/linux/regulator/mt6311.h
new file mode 100644
index 000000000..847325939
--- /dev/null
+++ b/kernel/include/linux/regulator/mt6311.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ * Author: Henry Chen <henryc.chen@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __LINUX_REGULATOR_MT6311_H
+#define __LINUX_REGULATOR_MT6311_H
+
+#define MT6311_MAX_REGULATORS	2
+
+enum {
+	MT6311_ID_VDVFS = 0,
+	MT6311_ID_VBIASN,
+};
+
+#define MT6311_E1_CID_CODE    0x10
+#define MT6311_E2_CID_CODE    0x20
+#define MT6311_E3_CID_CODE    0x30
+
+#endif /* __LINUX_REGULATOR_MT6311_H */