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-rw-r--r--include/linux/device.h38
-rw-r--r--include/linux/device/devres.h41
-rw-r--r--include/linux/gpio/consumer.h11
-rw-r--r--include/linux/mfd/max77759.h165
4 files changed, 216 insertions, 39 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index 79e49fe494b7..4940db137fff 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -281,44 +281,6 @@ int __must_check device_create_bin_file(struct device *dev,
void device_remove_bin_file(struct device *dev,
const struct bin_attribute *attr);
-/* allows to add/remove a custom action to devres stack */
-int devm_remove_action_nowarn(struct device *dev, void (*action)(void *), void *data);
-
-/**
- * devm_remove_action() - removes previously added custom action
- * @dev: Device that owns the action
- * @action: Function implementing the action
- * @data: Pointer to data passed to @action implementation
- *
- * Removes instance of @action previously added by devm_add_action().
- * Both action and data should match one of the existing entries.
- */
-static inline
-void devm_remove_action(struct device *dev, void (*action)(void *), void *data)
-{
- WARN_ON(devm_remove_action_nowarn(dev, action, data));
-}
-
-void devm_release_action(struct device *dev, void (*action)(void *), void *data);
-
-int __devm_add_action(struct device *dev, void (*action)(void *), void *data, const char *name);
-#define devm_add_action(dev, action, data) \
- __devm_add_action(dev, action, data, #action)
-
-static inline int __devm_add_action_or_reset(struct device *dev, void (*action)(void *),
- void *data, const char *name)
-{
- int ret;
-
- ret = __devm_add_action(dev, action, data, name);
- if (ret)
- action(data);
-
- return ret;
-}
-#define devm_add_action_or_reset(dev, action, data) \
- __devm_add_action_or_reset(dev, action, data, #action)
-
/**
* devm_alloc_percpu - Resource-managed alloc_percpu
* @dev: Device to allocate per-cpu memory for
diff --git a/include/linux/device/devres.h b/include/linux/device/devres.h
index 9b49f9915850..ae696d10faff 100644
--- a/include/linux/device/devres.h
+++ b/include/linux/device/devres.h
@@ -8,6 +8,7 @@
#include <linux/overflow.h>
#include <linux/stdarg.h>
#include <linux/types.h>
+#include <asm/bug.h>
struct device;
struct device_node;
@@ -126,4 +127,44 @@ void __iomem *devm_of_iomap(struct device *dev, struct device_node *node, int in
#endif
+/* allows to add/remove a custom action to devres stack */
+int devm_remove_action_nowarn(struct device *dev, void (*action)(void *), void *data);
+
+/**
+ * devm_remove_action() - removes previously added custom action
+ * @dev: Device that owns the action
+ * @action: Function implementing the action
+ * @data: Pointer to data passed to @action implementation
+ *
+ * Removes instance of @action previously added by devm_add_action().
+ * Both action and data should match one of the existing entries.
+ */
+static inline
+void devm_remove_action(struct device *dev, void (*action)(void *), void *data)
+{
+ WARN_ON(devm_remove_action_nowarn(dev, action, data));
+}
+
+void devm_release_action(struct device *dev, void (*action)(void *), void *data);
+
+int __devm_add_action(struct device *dev, void (*action)(void *), void *data, const char *name);
+#define devm_add_action(dev, action, data) \
+ __devm_add_action(dev, action, data, #action)
+
+static inline int __devm_add_action_or_reset(struct device *dev, void (*action)(void *),
+ void *data, const char *name)
+{
+ int ret;
+
+ ret = __devm_add_action(dev, action, data, name);
+ if (ret)
+ action(data);
+
+ return ret;
+}
+#define devm_add_action_or_reset(dev, action, data) \
+ __devm_add_action_or_reset(dev, action, data, #action)
+
+bool devm_is_action_added(struct device *dev, void (*action)(void *), void *data);
+
#endif /* _DEVICE_DEVRES_H_ */
diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h
index 8adc8e9cb4a7..f0b1982da0cc 100644
--- a/include/linux/gpio/consumer.h
+++ b/include/linux/gpio/consumer.h
@@ -181,6 +181,8 @@ struct gpio_desc *devm_fwnode_gpiod_get_index(struct device *dev,
enum gpiod_flags flags,
const char *label);
+bool gpiod_is_equal(struct gpio_desc *desc, struct gpio_desc *other);
+
#else /* CONFIG_GPIOLIB */
#include <linux/bug.h>
@@ -548,6 +550,13 @@ struct gpio_desc *devm_fwnode_gpiod_get_index(struct device *dev,
return ERR_PTR(-ENOSYS);
}
+static inline bool
+gpiod_is_equal(struct gpio_desc *desc, struct gpio_desc *other)
+{
+ WARN_ON(desc || other);
+ return false;
+}
+
#endif /* CONFIG_GPIOLIB */
#if IS_ENABLED(CONFIG_GPIOLIB) && IS_ENABLED(CONFIG_HTE)
@@ -588,7 +597,7 @@ struct gpio_desc *devm_fwnode_gpiod_get(struct device *dev,
struct acpi_gpio_params {
unsigned int crs_entry_index;
- unsigned int line_index;
+ unsigned short line_index;
bool active_low;
};
diff --git a/include/linux/mfd/max77759.h b/include/linux/mfd/max77759.h
new file mode 100644
index 000000000000..c6face34e385
--- /dev/null
+++ b/include/linux/mfd/max77759.h
@@ -0,0 +1,165 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2020 Google Inc.
+ * Copyright 2025 Linaro Ltd.
+ *
+ * Maxim MAX77759 core driver
+ */
+
+#ifndef __LINUX_MFD_MAX77759_H
+#define __LINUX_MFD_MAX77759_H
+
+#include <linux/completion.h>
+#include <linux/mutex.h>
+#include <linux/regmap.h>
+
+#define MAX77759_PMIC_REG_PMIC_ID 0x00
+#define MAX77759_PMIC_REG_PMIC_REVISION 0x01
+#define MAX77759_PMIC_REG_OTP_REVISION 0x02
+#define MAX77759_PMIC_REG_INTSRC 0x22
+#define MAX77759_PMIC_REG_INTSRCMASK 0x23
+#define MAX77759_PMIC_REG_INTSRC_MAXQ BIT(3)
+#define MAX77759_PMIC_REG_INTSRC_TOPSYS BIT(1)
+#define MAX77759_PMIC_REG_INTSRC_CHGR BIT(0)
+#define MAX77759_PMIC_REG_TOPSYS_INT 0x24
+#define MAX77759_PMIC_REG_TOPSYS_INT_MASK 0x26
+#define MAX77759_PMIC_REG_TOPSYS_INT_TSHDN BIT(6)
+#define MAX77759_PMIC_REG_TOPSYS_INT_SYSOVLO BIT(5)
+#define MAX77759_PMIC_REG_TOPSYS_INT_SYSUVLO BIT(4)
+#define MAX77759_PMIC_REG_TOPSYS_INT_FSHIP BIT(0)
+#define MAX77759_PMIC_REG_I2C_CNFG 0x40
+#define MAX77759_PMIC_REG_SWRESET 0x50
+#define MAX77759_PMIC_REG_CONTROL_FG 0x51
+
+#define MAX77759_MAXQ_REG_UIC_INT1 0x64
+#define MAX77759_MAXQ_REG_UIC_INT1_APCMDRESI BIT(7)
+#define MAX77759_MAXQ_REG_UIC_INT1_SYSMSGI BIT(6)
+#define MAX77759_MAXQ_REG_UIC_INT1_GPIO6I BIT(1)
+#define MAX77759_MAXQ_REG_UIC_INT1_GPIO5I BIT(0)
+#define MAX77759_MAXQ_REG_UIC_INT1_GPIOxI(offs, en) (((en) & 1) << (offs))
+#define MAX77759_MAXQ_REG_UIC_INT1_GPIOxI_MASK(offs) \
+ MAX77759_MAXQ_REG_UIC_INT1_GPIOxI(offs, ~0)
+#define MAX77759_MAXQ_REG_UIC_INT2 0x65
+#define MAX77759_MAXQ_REG_UIC_INT3 0x66
+#define MAX77759_MAXQ_REG_UIC_INT4 0x67
+#define MAX77759_MAXQ_REG_UIC_UIC_STATUS1 0x68
+#define MAX77759_MAXQ_REG_UIC_UIC_STATUS2 0x69
+#define MAX77759_MAXQ_REG_UIC_UIC_STATUS3 0x6a
+#define MAX77759_MAXQ_REG_UIC_UIC_STATUS4 0x6b
+#define MAX77759_MAXQ_REG_UIC_UIC_STATUS5 0x6c
+#define MAX77759_MAXQ_REG_UIC_UIC_STATUS6 0x6d
+#define MAX77759_MAXQ_REG_UIC_UIC_STATUS7 0x6f
+#define MAX77759_MAXQ_REG_UIC_UIC_STATUS8 0x6f
+#define MAX77759_MAXQ_REG_UIC_INT1_M 0x70
+#define MAX77759_MAXQ_REG_UIC_INT2_M 0x71
+#define MAX77759_MAXQ_REG_UIC_INT3_M 0x72
+#define MAX77759_MAXQ_REG_UIC_INT4_M 0x73
+#define MAX77759_MAXQ_REG_AP_DATAOUT0 0x81
+#define MAX77759_MAXQ_REG_AP_DATAOUT32 0xa1
+#define MAX77759_MAXQ_REG_AP_DATAIN0 0xb1
+#define MAX77759_MAXQ_REG_UIC_SWRST 0xe0
+
+#define MAX77759_CHGR_REG_CHG_INT 0xb0
+#define MAX77759_CHGR_REG_CHG_INT2 0xb1
+#define MAX77759_CHGR_REG_CHG_INT_MASK 0xb2
+#define MAX77759_CHGR_REG_CHG_INT2_MASK 0xb3
+#define MAX77759_CHGR_REG_CHG_INT_OK 0xb4
+#define MAX77759_CHGR_REG_CHG_DETAILS_00 0xb5
+#define MAX77759_CHGR_REG_CHG_DETAILS_01 0xb6
+#define MAX77759_CHGR_REG_CHG_DETAILS_02 0xb7
+#define MAX77759_CHGR_REG_CHG_DETAILS_03 0xb8
+#define MAX77759_CHGR_REG_CHG_CNFG_00 0xb9
+#define MAX77759_CHGR_REG_CHG_CNFG_01 0xba
+#define MAX77759_CHGR_REG_CHG_CNFG_02 0xbb
+#define MAX77759_CHGR_REG_CHG_CNFG_03 0xbc
+#define MAX77759_CHGR_REG_CHG_CNFG_04 0xbd
+#define MAX77759_CHGR_REG_CHG_CNFG_05 0xbe
+#define MAX77759_CHGR_REG_CHG_CNFG_06 0xbf
+#define MAX77759_CHGR_REG_CHG_CNFG_07 0xc0
+#define MAX77759_CHGR_REG_CHG_CNFG_08 0xc1
+#define MAX77759_CHGR_REG_CHG_CNFG_09 0xc2
+#define MAX77759_CHGR_REG_CHG_CNFG_10 0xc3
+#define MAX77759_CHGR_REG_CHG_CNFG_11 0xc4
+#define MAX77759_CHGR_REG_CHG_CNFG_12 0xc5
+#define MAX77759_CHGR_REG_CHG_CNFG_13 0xc6
+#define MAX77759_CHGR_REG_CHG_CNFG_14 0xc7
+#define MAX77759_CHGR_REG_CHG_CNFG_15 0xc8
+#define MAX77759_CHGR_REG_CHG_CNFG_16 0xc9
+#define MAX77759_CHGR_REG_CHG_CNFG_17 0xca
+#define MAX77759_CHGR_REG_CHG_CNFG_18 0xcb
+#define MAX77759_CHGR_REG_CHG_CNFG_19 0xcc
+
+/* MaxQ opcodes for max77759_maxq_command() */
+#define MAX77759_MAXQ_OPCODE_MAXLENGTH (MAX77759_MAXQ_REG_AP_DATAOUT32 - \
+ MAX77759_MAXQ_REG_AP_DATAOUT0 + \
+ 1)
+
+#define MAX77759_MAXQ_OPCODE_GPIO_TRIGGER_READ 0x21
+#define MAX77759_MAXQ_OPCODE_GPIO_TRIGGER_WRITE 0x22
+#define MAX77759_MAXQ_OPCODE_GPIO_CONTROL_READ 0x23
+#define MAX77759_MAXQ_OPCODE_GPIO_CONTROL_WRITE 0x24
+#define MAX77759_MAXQ_OPCODE_USER_SPACE_READ 0x81
+#define MAX77759_MAXQ_OPCODE_USER_SPACE_WRITE 0x82
+
+/**
+ * struct max77759 - core max77759 internal data structure
+ *
+ * @regmap_top: Regmap for accessing TOP registers
+ * @maxq_lock: Lock for serializing access to MaxQ
+ * @regmap_maxq: Regmap for accessing MaxQ registers
+ * @cmd_done: Used to signal completion of a MaxQ command
+ * @regmap_charger: Regmap for accessing charger registers
+ *
+ * The MAX77759 comprises several sub-blocks, namely TOP, MaxQ, Charger,
+ * Fuel Gauge, and TCPCI.
+ */
+struct max77759 {
+ struct regmap *regmap_top;
+
+ /* This protects MaxQ commands - only one can be active */
+ struct mutex maxq_lock;
+ struct regmap *regmap_maxq;
+ struct completion cmd_done;
+
+ struct regmap *regmap_charger;
+};
+
+/**
+ * struct max77759_maxq_command - structure containing the MaxQ command to
+ * send
+ *
+ * @length: The number of bytes to send.
+ * @cmd: The data to send.
+ */
+struct max77759_maxq_command {
+ u8 length;
+ u8 cmd[] __counted_by(length);
+};
+
+/**
+ * struct max77759_maxq_response - structure containing the MaxQ response
+ *
+ * @length: The number of bytes to receive.
+ * @rsp: The data received. Must have at least @length bytes space.
+ */
+struct max77759_maxq_response {
+ u8 length;
+ u8 rsp[] __counted_by(length);
+};
+
+/**
+ * max77759_maxq_command() - issue a MaxQ command and wait for the response
+ * and associated data
+ *
+ * @max77759: The core max77759 device handle.
+ * @cmd: The command to be sent.
+ * @rsp: Any response data associated with the command will be copied here;
+ * can be %NULL if the command has no response (other than ACK).
+ *
+ * Return: 0 on success, a negative error number otherwise.
+ */
+int max77759_maxq_command(struct max77759 *max77759,
+ const struct max77759_maxq_command *cmd,
+ struct max77759_maxq_response *rsp);
+
+#endif /* __LINUX_MFD_MAX77759_H */
generated by cgit v1.2.3 (git 2.39.0) at 2026-01-03 17:03:59 +0300