Merge tag 'regulator-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "A quiet release for the regulator API, conference season must've been
  slowing everyone down:

   - a new interface allowing drivers to provide an interface for
     reading a more detailed description of error conditions which
     allows devices using these regulators to build

   - ACPI support for the fixed voltage regulator.

   - cleanups for the TI TWL drivers to reduce code duplication"

* tag 'regulator-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (24 commits)
  regulator: tps65086: Fix 25mV ranges for BUCK regulators 1, 2, and 6
  regulator: Fix regulator_get_error_flags() signature mismatch
  regulator: core: add newline in debug message
  regulator: tps65086: Fix 25mV ranges for BUCK regulators
  regulator: core: Correct type of mode in regulator_mode_constrain
  regulator: max77620: add documentation for MPOK property
  regulator: max77620: add support to configure MPOK
  regulator: twl6030: Remove unused fields from struct twlreg_info
  regulator: twl: Remove unused fields from struct twlreg_info
  regulator: twl: split twl6030 logic into its own file
  regulator: twl: kill unused functions
  regulator: twl: make driver DT only
  regulator: twl-regulator: rework fixed regulator definition
  regulator: max77620: remove unused variable
  regulator: pwm: Add missing quotes to DT example
  regulator: stw481x-vmmc: fix ages old enable error
  regulator: gpio: properly check return value of of_get_named_gpio
  regulator: lp873x: Add support for populating input supply
  regulator: axp20x: Fix axp809 ldo_io registration error on cold boot
  regulators: helpers: Fix handling of bypass_val_on in get_bypass_regmap
  ...

3 files changed, 33 insertions, 0 deletions

diff --git a/include/linux/mfd/max77620.h b/include/linux/mfd/max77620.h
index 3ca0af07fc78..ad2a9a852aea 100644
--- a/include/linux/mfd/max77620.h
+++ b/include/linux/mfd/max77620.h
@@ -180,6 +180,7 @@
 #define MAX77620_SD_CFG1_FPWM_SD_MASK           BIT(2)
 #define MAX77620_SD_CFG1_FPWM_SD_SKIP           0
 #define MAX77620_SD_CFG1_FPWM_SD_FPWM           BIT(2)
+#define MAX20024_SD_CFG1_MPOK_MASK              BIT(1)
 #define MAX77620_SD_CFG1_FSRADE_SD_MASK         BIT(0)
 #define MAX77620_SD_CFG1_FSRADE_SD_DISABLE      0
 #define MAX77620_SD_CFG1_FSRADE_SD_ENABLE       BIT(0)
@@ -187,6 +188,7 @@
 /* LDO_CNFG2 */
 #define MAX77620_LDO_POWER_MODE_MASK            0xC0
 #define MAX77620_LDO_POWER_MODE_SHIFT           6
+#define MAX20024_LDO_CFG2_MPOK_MASK             BIT(2)
 #define MAX77620_LDO_CFG2_ADE_MASK              BIT(1)
 #define MAX77620_LDO_CFG2_ADE_DISABLE           0
 #define MAX77620_LDO_CFG2_ADE_ENABLE            BIT(1)
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index 692108222271..ea0fffa5faeb 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -120,6 +120,25 @@ struct regmap;
 #define REGULATOR_EVENT_PRE_DISABLE             0x400
 #define REGULATOR_EVENT_ABORT_DISABLE           0x800
 
+/*
+ * Regulator errors that can be queried using regulator_get_error_flags
+ *
+ * UNDER_VOLTAGE  Regulator output is under voltage.
+ * OVER_CURRENT   Regulator output current is too high.
+ * REGULATION_OUT Regulator output is out of regulation.
+ * FAIL           Regulator output has failed.
+ * OVER_TEMP      Regulator over temp.
+ *
+ * NOTE: These errors can be OR'ed together.
+ */
+
+#define REGULATOR_ERROR_UNDER_VOLTAGE           BIT(1)
+#define REGULATOR_ERROR_OVER_CURRENT            BIT(2)
+#define REGULATOR_ERROR_REGULATION_OUT          BIT(3)
+#define REGULATOR_ERROR_FAIL                    BIT(4)
+#define REGULATOR_ERROR_OVER_TEMP               BIT(5)
+
+
 /**
  * struct pre_voltage_change_data - Data sent with PRE_VOLTAGE_CHANGE event
  *
@@ -237,6 +256,8 @@ int regulator_get_current_limit(struct regulator *regulator);
 
 int regulator_set_mode(struct regulator *regulator, unsigned int mode);
 unsigned int regulator_get_mode(struct regulator *regulator);
+int regulator_get_error_flags(struct regulator *regulator,
+                                unsigned int *flags);
 int regulator_set_load(struct regulator *regulator, int load_uA);
 
 int regulator_allow_bypass(struct regulator *regulator, bool allow);
@@ -477,6 +498,12 @@ static inline unsigned int regulator_get_mode(struct regulator *regulator)
         return REGULATOR_MODE_NORMAL;
 }
 
+static inline int regulator_get_error_flags(struct regulator *regulator,
+                                            unsigned int *flags)
+{
+        return -EINVAL;
+}
+
 static inline int regulator_set_load(struct regulator *regulator, int load_uA)
 {
         return REGULATOR_MODE_NORMAL;
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 37b532410528..dac8e7b16bc6 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -100,6 +100,7 @@ struct regulator_linear_range {
  *
  * @set_mode: Set the configured operating mode for the regulator.
  * @get_mode: Get the configured operating mode for the regulator.
+ * @get_error_flags: Get the current error(s) for the regulator.
  * @get_status: Return actual (not as-configured) status of regulator, as a
  *      REGULATOR_STATUS value (or negative errno)
  * @get_optimum_mode: Get the most efficient operating mode for the regulator
@@ -169,6 +170,9 @@ struct regulator_ops {
         int (*set_mode) (struct regulator_dev *, unsigned int mode);
         unsigned int (*get_mode) (struct regulator_dev *);
 
+        /* retrieve current error flags on the regulator */
+        int (*get_error_flags)(struct regulator_dev *, unsigned int *flags);
+
         /* Time taken to enable or set voltage on the regulator */
         int (*enable_time) (struct regulator_dev *);
         int (*set_ramp_delay) (struct regulator_dev *, int ramp_delay);