Merge tag 'regmap-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap updates from Mark Brown:
 "The main change here is Marek's addition of bulk read/write callbacks
  for individual regmaps, we've supported single register operations for
  a while but there's enough hardware out there which can use bulk
  equivalents to make it worthwhile"

* tag 'regmap-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: Add missing map->bus check
  regmap: Add bulk read/write callbacks into regmap_config
  regmap: cache: set max_register with reg_stride
  regmap: Constify static regmap_bus structs

1 files changed, 12 insertions, 0 deletions

diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index de81a94d7b30..8952fa3d0d59 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -299,6 +299,12 @@ typedef void (*regmap_unlock)(void *);
  *		     if the function require special handling with lock and reg
  *		     handling and the operation cannot be represented as a simple
  *		     update_bits operation on a bus such as SPI, I2C, etc.
+ * @read: Optional callback that if filled will be used to perform all the
+ *        bulk reads from the registers. Data is returned in the buffer used
+ *        to transmit data.
+ * @write: Same as above for writing.
+ * @max_raw_read: Max raw read size that can be used on the device.
+ * @max_raw_write: Max raw write size that can be used on the device.
  * @fast_io:	  Register IO is fast. Use a spinlock instead of a mutex
  *	     	  to perform locking. This field is ignored if custom lock/unlock
  *	     	  functions are used (see fields lock/unlock of struct regmap_config).
@@ -385,6 +391,12 @@ struct regmap_config {
 	int (*reg_write)(void *context, unsigned int reg, unsigned int val);
 	int (*reg_update_bits)(void *context, unsigned int reg,
 			       unsigned int mask, unsigned int val);
+	/* Bulk read/write */
+	int (*read)(void *context, const void *reg_buf, size_t reg_size,
+		    void *val_buf, size_t val_size);
+	int (*write)(void *context, const void *data, size_t count);
+	size_t max_raw_read;
+	size_t max_raw_write;
 
 	bool fast_io;