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authorSander Vanheule <sander@svanheule.net>2021-05-17 22:28:03 +0300
committerMark Brown <broonie@kernel.org>2021-05-19 16:19:10 +0300
commit1f89d2fe16072a74b34bdb895160910091427891 (patch)
tree74d11349d77590477b8b85ae3748058328900382 /include/linux/regmap.h
parent6efb943b8616ec53a5e444193dccf1af9ad627b5 (diff)
downloadlinux-1f89d2fe16072a74b34bdb895160910091427891.tar.xz
regmap: Add MDIO bus support
Basic support for MDIO bus access. Support only includes clause-22 register access, with 5-bit addresses, and 16-bit wide registers. Signed-off-by: Sander Vanheule <sander@svanheule.net> Link: https://lore.kernel.org/r/63b99a2fec2c4ea3c461d59d451af8d675ecf312.1621279162.git.sander@svanheule.net Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/regmap.h')
-rw-r--r--include/linux/regmap.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index f87a11a5cc4a..e97dd05f7cdb 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -27,6 +27,7 @@ struct device_node;
struct i2c_client;
struct i3c_device;
struct irq_domain;
+struct mdio_device;
struct slim_device;
struct spi_device;
struct spmi_device;
@@ -538,6 +539,10 @@ struct regmap *__regmap_init_i2c(struct i2c_client *i2c,
const struct regmap_config *config,
struct lock_class_key *lock_key,
const char *lock_name);
+struct regmap *__regmap_init_mdio(struct mdio_device *mdio_dev,
+ const struct regmap_config *config,
+ struct lock_class_key *lock_key,
+ const char *lock_name);
struct regmap *__regmap_init_sccb(struct i2c_client *i2c,
const struct regmap_config *config,
struct lock_class_key *lock_key,
@@ -594,6 +599,10 @@ struct regmap *__devm_regmap_init_i2c(struct i2c_client *i2c,
const struct regmap_config *config,
struct lock_class_key *lock_key,
const char *lock_name);
+struct regmap *__devm_regmap_init_mdio(struct mdio_device *mdio_dev,
+ const struct regmap_config *config,
+ struct lock_class_key *lock_key,
+ const char *lock_name);
struct regmap *__devm_regmap_init_sccb(struct i2c_client *i2c,
const struct regmap_config *config,
struct lock_class_key *lock_key,
@@ -698,6 +707,19 @@ int regmap_attach_dev(struct device *dev, struct regmap *map,
i2c, config)
/**
+ * regmap_init_mdio() - Initialise register map
+ *
+ * @mdio_dev: Device that will be interacted with
+ * @config: Configuration for register map
+ *
+ * The return value will be an ERR_PTR() on error or a valid pointer to
+ * a struct regmap.
+ */
+#define regmap_init_mdio(mdio_dev, config) \
+ __regmap_lockdep_wrapper(__regmap_init_mdio, #config, \
+ mdio_dev, config)
+
+/**
* regmap_init_sccb() - Initialise register map
*
* @i2c: Device that will be interacted with
@@ -889,6 +911,20 @@ bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg);
i2c, config)
/**
+ * devm_regmap_init_mdio() - Initialise managed register map
+ *
+ * @mdio_dev: Device that will be interacted with
+ * @config: Configuration for register map
+ *
+ * The return value will be an ERR_PTR() on error or a valid pointer
+ * to a struct regmap. The regmap will be automatically freed by the
+ * device management code.
+ */
+#define devm_regmap_init_mdio(mdio_dev, config) \
+ __regmap_lockdep_wrapper(__devm_regmap_init_mdio, #config, \
+ mdio_dev, config)
+
+/**
* devm_regmap_init_sccb() - Initialise managed register map
*
* @i2c: Device that will be interacted with