commit 55562449032c43b84f839e2fbb84bf1d351d6603
author Tony Lindgren <tony@atomide.com> Thu Sep 15 13:56:11 2016 -0700
committer Mark Brown <broonie@kernel.org> Fri Sep 16 12:06:27 2016 +0100
tree 0abc946447244b9f316e5b440bc9f3e1e6da4b89
parent f50e38c9966076465bc8d9dd0bc582c268a0031e

regmap: Add missing little endian functions

This with the longer read and write masks allow supporting more
exotic devices. For example a little endian SPI device:

static const struct regmap_config foo_regmap_config = {
	.reg_bits = 16,
	.reg_stride = 4,
	.val_bits = 16,
	.write_flag_mask = 0x8000,
	.reg_format_endian = REGMAP_ENDIAN_LITTLE,
	.val_format_endian = REGMAP_ENDIAN_LITTLE,
	...
};

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/base/regmap/regmap.c

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index a6a5236..31cfe70 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -749,6 +749,9 @@
 		case REGMAP_ENDIAN_BIG:
 			map->format.format_reg = regmap_format_16_be;
 			break;
+		case REGMAP_ENDIAN_LITTLE:
+			map->format.format_reg = regmap_format_16_le;
+			break;
 		case REGMAP_ENDIAN_NATIVE:
 			map->format.format_reg = regmap_format_16_native;
 			break;
@@ -768,6 +771,9 @@
 		case REGMAP_ENDIAN_BIG:
 			map->format.format_reg = regmap_format_32_be;
 			break;
+		case REGMAP_ENDIAN_LITTLE:
+			map->format.format_reg = regmap_format_32_le;
+			break;
 		case REGMAP_ENDIAN_NATIVE:
 			map->format.format_reg = regmap_format_32_native;
 			break;
@@ -782,6 +788,9 @@
 		case REGMAP_ENDIAN_BIG:
 			map->format.format_reg = regmap_format_64_be;
 			break;
+		case REGMAP_ENDIAN_LITTLE:
+			map->format.format_reg = regmap_format_64_le;
+			break;
 		case REGMAP_ENDIAN_NATIVE:
 			map->format.format_reg = regmap_format_64_native;
 			break;