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Unverified Commit e76ad18b authored by Srinivas Kandagatla's avatar Srinivas Kandagatla Committed by Mark Brown
Browse files

regmap: slimbus: add support to multi read/write 



SLIMbus supports upto 16 bytes in value management messages,
so add support to read/writes upto 16 bytes.

This also removes redundant single register reg_read/reg_write.

Also useful for paged register access on SLIMbus interfaced codecs.

Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent ce397d21

drivers/base/regmap/regmap-slimbus.c

+7 −16
Original line number Diff line number Diff line
@@ -7,33 +7,24 @@ 


#include "internal.h"



static int regmap_slimbus_byte_reg_read(void *context, unsigned int reg,

					unsigned int *val)

static int regmap_slimbus_write(void *context, const void *data, size_t count)

{

	struct slim_device *sdev = context;

	int v;



	v = slim_readb(sdev, reg);



	if (v < 0)

		return v;



	*val = v;



	return 0;

	return slim_write(sdev, *(u16 *)data, count - 2, (u8 *)data + 2);

}



static int regmap_slimbus_byte_reg_write(void *context, unsigned int reg,

					 unsigned int val)

static int regmap_slimbus_read(void *context, const void *reg, size_t reg_size,

			       void *val, size_t val_size)

{

	struct slim_device *sdev = context;



	return slim_writeb(sdev, reg, val);

	return slim_read(sdev, *(u16 *)reg, val_size, val);

}



static struct regmap_bus regmap_slimbus_bus = {

	.reg_write = regmap_slimbus_byte_reg_write,

	.reg_read = regmap_slimbus_byte_reg_read,

	.write = regmap_slimbus_write,

	.read = regmap_slimbus_read,

	.reg_format_endian_default = REGMAP_ENDIAN_LITTLE,

	.val_format_endian_default = REGMAP_ENDIAN_LITTLE,

};