regmap: Add support for device with 24 data bits.
Add support for devices with 24 data bits. Signed-off-by: Marc Reilly <marc@cpdesign.com.au> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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@ -126,6 +126,15 @@ static void regmap_format_16(void *buf, unsigned int val)
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b[0] = cpu_to_be16(val);
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}
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static void regmap_format_24(void *buf, unsigned int val)
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{
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u8 *b = buf;
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b[0] = val >> 16;
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b[1] = val >> 8;
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b[2] = val;
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}
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static void regmap_format_32(void *buf, unsigned int val)
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{
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__be32 *b = buf;
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@ -149,6 +158,16 @@ static unsigned int regmap_parse_16(void *buf)
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return b[0];
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}
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static unsigned int regmap_parse_24(void *buf)
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{
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u8 *b = buf;
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unsigned int ret = b[2];
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ret |= ((unsigned int)b[1]) << 8;
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ret |= ((unsigned int)b[0]) << 16;
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return ret;
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}
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static unsigned int regmap_parse_32(void *buf)
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{
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__be32 *b = buf;
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@ -273,6 +292,10 @@ struct regmap *regmap_init(struct device *dev,
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map->format.format_val = regmap_format_16;
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map->format.parse_val = regmap_parse_16;
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break;
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case 24:
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map->format.format_val = regmap_format_24;
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map->format.parse_val = regmap_parse_24;
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break;
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case 32:
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map->format.format_val = regmap_format_32;
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map->format.parse_val = regmap_parse_32;
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