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Subject[PATCH] regmap: add support for 7/17 register formating
Date
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>
---
drivers/base/regmap/regmap.c | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 19f57ccfbe1d..bc1c36b93c15 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -230,6 +230,16 @@ 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)
{
@@ -864,6 +874,9 @@ 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;
}
--
2.25.1
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