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Commit 55562449 authored by Tony Lindgren's avatar Tony Lindgren Committed by Mark Brown
Browse files

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: default avatarTony Lindgren <tony@atomide.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent f50e38c9

drivers/base/regmap/regmap.c

+9 −0
Original line number Diff line number Diff line
@@ -749,6 +749,9 @@ struct regmap *__regmap_init(struct device *dev, 
		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 @@ struct regmap *__regmap_init(struct device *dev, 
		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 @@ struct regmap *__regmap_init(struct device *dev, 
		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;