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regmap: add support for 7/17 register formating 

This patch adds support for 7 bits register, 17 bits value type register
formating. This is used, for example, by the Analog Devices
ADMV1013/ADMV1014.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Signed-off-by: Andrei Drimbarean <andrei.drimbarean@analog.com>
Message-Id: <20210526085223.14896-1-antoniu.miclaus@analog.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Antoniu Miclaus 2021-05-26 11:52:24 +03:00 committed by Mark Brown
parent e56360d6a1
commit b24412aff3
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GPG Key ID: 24D68B725D5487D0
1 changed files with 13 additions and 0 deletions
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13
drivers/base/regmap/regmap.c
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@ -243,6 +243,16 @@ static void regmap_format_7_9_write(struct regmap *map,
*out = cpu_to_be16((reg << 9) | val);
}
static void regmap_format_7_17_write(struct regmap *map,
unsigned int reg, unsigned int val)
{
u8 *out = map->work_buf;
out[2] = val;
out[1] = val >> 8;
out[0] = (val >> 16) | (reg << 1);
}
static void regmap_format_10_14_write(struct regmap *map,
unsigned int reg, unsigned int val)
{
@ -885,6 +895,9 @@ struct regmap *__regmap_init(struct device *dev,
case 9:
map->format.format_write = regmap_format_7_9_write;
break;
case 17:
map->format.format_write = regmap_format_7_17_write;
break;
default:
goto err_hwlock;
}