Merge remote-tracking branch 'regmap/for-5.11' into regmap-next

2 files changed, 72 insertions, 0 deletions

diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index e7834d98207f..2cc4ecd36298 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -315,6 +315,10 @@ typedef void (*regmap_unlock)(void *);
  *                   masks are used.
  * @zero_flag_mask: If set, read_flag_mask and write_flag_mask are used even
  *                   if they are both empty.
+ * @use_relaxed_mmio: If set, MMIO R/W operations will not use memory barriers.
+ *                    This can avoid load on devices which don't require strict
+ *                    orderings, but drivers should carefully add any explicit
+ *                    memory barriers when they may require them.
  * @use_single_read: If set, converts the bulk read operation into a series of
  *                   single read operations. This is useful for a device that
  *                   does not support  bulk read.
@@ -388,6 +392,7 @@ struct regmap_config {
 
 	bool use_single_read;
 	bool use_single_write;
+	bool use_relaxed_mmio;
 	bool can_multi_write;
 
 	enum regmap_endian reg_format_endian;
@@ -570,6 +575,10 @@ struct regmap *__regmap_init_sdw(struct sdw_slave *sdw,
 				 const struct regmap_config *config,
 				 struct lock_class_key *lock_key,
 				 const char *lock_name);
+struct regmap *__regmap_init_sdw_mbq(struct sdw_slave *sdw,
+				     const struct regmap_config *config,
+				     struct lock_class_key *lock_key,
+				     const char *lock_name);
 struct regmap *__regmap_init_spi_avmm(struct spi_device *spi,
 				      const struct regmap_config *config,
 				      struct lock_class_key *lock_key,
@@ -619,6 +628,10 @@ struct regmap *__devm_regmap_init_sdw(struct sdw_slave *sdw,
 				 const struct regmap_config *config,
 				 struct lock_class_key *lock_key,
 				 const char *lock_name);
+struct regmap *__devm_regmap_init_sdw_mbq(struct sdw_slave *sdw,
+					  const struct regmap_config *config,
+					  struct lock_class_key *lock_key,
+					  const char *lock_name);
 struct regmap *__devm_regmap_init_slimbus(struct slim_device *slimbus,
 				 const struct regmap_config *config,
 				 struct lock_class_key *lock_key,
@@ -818,6 +831,19 @@ bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg);
 				sdw, config)
 
 /**
+ * regmap_init_sdw_mbq() - Initialise register map
+ *
+ * @sdw: 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_sdw_mbq(sdw, config)					\
+	__regmap_lockdep_wrapper(__regmap_init_sdw_mbq, #config,		\
+				sdw, config)
+
+/**
  * regmap_init_spi_avmm() - Initialize register map for Intel SPI Slave
  * to AVMM Bus Bridge
  *
@@ -990,6 +1016,20 @@ bool regmap_ac97_default_volatile(struct device *dev, unsigned int reg);
 				sdw, config)
 
 /**
+ * devm_regmap_init_sdw_mbq() - Initialise managed register map
+ *
+ * @sdw: 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_sdw_mbq(sdw, config)			\
+	__regmap_lockdep_wrapper(__devm_regmap_init_sdw_mbq, #config,   \
+				sdw, config)
+
+/**
  * devm_regmap_init_slimbus() - Initialise managed register map
  *
  * @slimbus: Device that will be interacted with
diff --git a/include/linux/soundwire/sdw_registers.h b/include/linux/soundwire/sdw_registers.h
index f420e8059779..e14dff9a9c7f 100644
--- a/include/linux/soundwire/sdw_registers.h
+++ b/include/linux/soundwire/sdw_registers.h
@@ -298,4 +298,36 @@
 #define SDW_CASC_PORT_MASK_INTSTAT3		1
 #define SDW_CASC_PORT_REG_OFFSET_INTSTAT3	2
 
+/*
+ * v1.2 device - SDCA address mapping
+ *
+ * Spec definition
+ *	Bits		Contents
+ *	31		0 (required by addressing range)
+ *	30:26		0b10000 (Control Prefix)
+ *	25		0 (Reserved)
+ *	24:22		Function Number [2:0]
+ *	21		Entity[6]
+ *	20:19		Control Selector[5:4]
+ *	18		0 (Reserved)
+ *	17:15		Control Number[5:3]
+ *	14		Next
+ *	13		MBQ
+ *	12:7		Entity[5:0]
+ *	6:3		Control Selector[3:0]
+ *	2:0		Control Number[2:0]
+ */
+
+#define SDW_SDCA_CTL(fun, ent, ctl, ch)		(BIT(30) |			\
+						 (((fun) & 0x7) << 22) |	\
+						 (((ent) & 0x40) << 15) |	\
+						 (((ent) & 0x3f) << 7) |	\
+						 (((ctl) & 0x30) << 15) |	\
+						 (((ctl) & 0x0f) << 3) |	\
+						 (((ch) & 0x38) << 12) |	\
+						 ((ch) & 0x07))
+
+#define SDW_SDCA_MBQ_CTL(reg)			((reg) | BIT(13))
+#define SDW_SDCA_NEXT_CTL(reg)			((reg) | BIT(14))
+
 #endif /* __SDW_REGISTERS_H */