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Commit 7e5ec63e authored by Lars-Peter Clausen's avatar Lars-Peter Clausen Committed by Mark Brown
Browse files

regmap: Add support for 10/14 register formating 



This patch adds support for 10 bits register, 14 bits value type register
formating. This is for example used by the Analog Devices AD5380.

Signed-off-by: default avatarLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 19254411

drivers/base/regmap/regmap.c

+20 −0
Original line number Diff line number Diff line
@@ -90,6 +90,16 @@ static void regmap_format_7_9_write(struct regmap *map, 
	*out = cpu_to_be16((reg << 9) | val);

}



static void regmap_format_10_14_write(struct regmap *map,

				    unsigned int reg, unsigned int val)

{

	u8 *out = map->work_buf;



	out[2] = val;

	out[1] = (val >> 8) | (reg << 6);

	out[0] = reg >> 2;

}



static void regmap_format_8(void *buf, unsigned int val)

{

	u8 *b = buf;
@@ -188,6 +198,16 @@ struct regmap *regmap_init(struct device *dev, 
		}

		break;



	case 10:

		switch (config->val_bits) {

		case 14:

			map->format.format_write = regmap_format_10_14_write;

			break;

		default:

			goto err_map;

		}

		break;



	case 8:

		map->format.format_reg = regmap_format_8;

		break;