linux-kernel - [PATCH RFC v3 3/5] regulator: add getter for active monitors

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Message-Id: <20230419-dynamic-vmon-v3-3-4179b586d8a1@skidata.com>
Date:   Sun, 21 May 2023 13:39:52 +0200
From:   Benjamin Bara <bbara93@...il.com>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>
Cc:     support.opensource@...semi.com,
        DLG-Adam.Ward.opensource@...renesas.com,
        linux-kernel@...r.kernel.org,
        Matti Vaittinen <mazziesaccount@...il.com>,
        Benjamin Bara <benjamin.bara@...data.com>
Subject: [PATCH RFC v3 3/5] regulator: add getter for active monitors

From: Benjamin Bara <benjamin.bara@...data.com>

Add an op to get all active monitors of a regulator.

Signed-off-by: Benjamin Bara <benjamin.bara@...data.com>
---
 include/linux/regulator/driver.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index d3b4a3d4514a..35547e9eca48 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -25,6 +25,12 @@ struct regulator_config;
 struct regulator_init_data;
 struct regulator_enable_gpio;
 
+#define REGULATOR_MONITOR_INVALID 0x0
+#define REGULATOR_MONITOR_OVER_CURRENT 0x1
+#define REGULATOR_MONITOR_OVER_VOLTAGE 0x2
+#define REGULATOR_MONITOR_UNDER_VOLTAGE 0x4
+#define REGULATOR_MONITOR_OVER_TEMPERATURE 0x8
+
 enum regulator_status {
 	REGULATOR_STATUS_OFF,
 	REGULATOR_STATUS_ON,
@@ -112,6 +118,8 @@ enum regulator_detection_severity {
  * @set_thermal_protection: Support enabling of and setting limits for over
  *	temperature situation detection.Detection can be configured for same
  *	severities as over current protection. Units of degree Kelvin.
+ * @get_active_protections: Get all enabled monitors of a regulator. OR'ed val
+ *	of REGULATOR_MONITOR_*. REGULATOR_MONITOR_INVALID means no one active.
  *
  * @set_active_discharge: Set active discharge enable/disable of regulators.
  *
@@ -183,6 +191,7 @@ struct regulator_ops {
 					    int severity, bool enable);
 	int (*set_thermal_protection)(struct regulator_dev *, int lim,
 				      int severity, bool enable);
+	int (*get_active_protections)(struct regulator_dev *dev, unsigned int *state);
 	int (*set_active_discharge)(struct regulator_dev *, bool enable);
 
 	/* enable/disable regulator */

-- 
2.34.1