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regmap: Add missing little endian functions

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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>
This commit is contained in:
Tony Lindgren 2016-09-15 13:56:11 -07:00 committed by Mark Brown
parent f50e38c996
commit 5556244903
1 changed files with 9 additions and 0 deletions
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9
drivers/base/regmap/regmap.c
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@ -749,6 +749,9 @@ struct regmap *__regmap_init(struct device *dev,
case REGMAP_ENDIAN_BIG: case REGMAP_ENDIAN_BIG:
map->format.format_reg = regmap_format_16_be; map->format.format_reg = regmap_format_16_be;
break; break;
case REGMAP_ENDIAN_LITTLE:
map->format.format_reg = regmap_format_16_le;
break;
case REGMAP_ENDIAN_NATIVE: case REGMAP_ENDIAN_NATIVE:
map->format.format_reg = regmap_format_16_native; map->format.format_reg = regmap_format_16_native;
break; break;
@ -768,6 +771,9 @@ struct regmap *__regmap_init(struct device *dev,
case REGMAP_ENDIAN_BIG: case REGMAP_ENDIAN_BIG:
map->format.format_reg = regmap_format_32_be; map->format.format_reg = regmap_format_32_be;
break; break;
case REGMAP_ENDIAN_LITTLE:
map->format.format_reg = regmap_format_32_le;
break;
case REGMAP_ENDIAN_NATIVE: case REGMAP_ENDIAN_NATIVE:
map->format.format_reg = regmap_format_32_native; map->format.format_reg = regmap_format_32_native;
break; break;
@ -782,6 +788,9 @@ struct regmap *__regmap_init(struct device *dev,
case REGMAP_ENDIAN_BIG: case REGMAP_ENDIAN_BIG:
map->format.format_reg = regmap_format_64_be; map->format.format_reg = regmap_format_64_be;
break; break;
case REGMAP_ENDIAN_LITTLE:
map->format.format_reg = regmap_format_64_le;
break;
case REGMAP_ENDIAN_NATIVE: case REGMAP_ENDIAN_NATIVE:
map->format.format_reg = regmap_format_64_native; map->format.format_reg = regmap_format_64_native;
break; break;