This adds support for devices with 7 address bits and 25 data bits. The initial intended user for this are the mc13xxx mfds in spi mode. (The 25th data bit is actually a dummy bit)
Signed-off-by: Marc Reilly <[email protected]> --- drivers/base/regmap/regmap.c | 11 +++++++++++ 1 files changed, 11 insertions(+), 0 deletions(-) diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index be10a4f..62ef0df 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -100,6 +100,14 @@ static void regmap_format_10_14_write(struct regmap *map, out[0] = reg >> 2; } +static void regmap_format_7_25_write(struct regmap *map, + unsigned int reg, unsigned int val) +{ + __be32 *out = map->work_buf; + + *out = (reg << 25) | val; +} + static void regmap_format_8(void *buf, unsigned int val) { u8 *b = buf; @@ -193,6 +201,9 @@ struct regmap *regmap_init(struct device *dev, case 9: map->format.format_write = regmap_format_7_9_write; break; + case 25: + map->format.format_write = regmap_format_7_25_write; + break; default: goto err_map; } -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
