iio:ad5064: Use a enum for the register map layout type

Currently the ad5064 only supports two different register map variations
and this is represented by a bool. This patch changes since to a enum so
we can support more variations in the future.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c
index 7cc3e93..b7f717c 100644 (file)
--- a/drivers/iio/dac/ad5064.c
+++ b/drivers/iio/dac/ad5064.c
@@ -49,6 +49,16 @@
 #define AD5064_LDAC_PWRDN_100K                 0x2
 #define AD5064_LDAC_PWRDN_3STATE               0x3
 
+/**
+ * enum ad5064_regmap_type - Register layout variant
+ * @AD5064_REGMAP_ADI: Analog Devices register map layout
+ * @AD5064_REGMAP_LTC: LTC register map layout
+ */
+enum ad5064_regmap_type {
+       AD5064_REGMAP_ADI,
+       AD5064_REGMAP_LTC,
+};
+
 /**
  * struct ad5064_chip_info - chip specific information
  * @shared_vref:       whether the vref supply is shared between channels
@@ -56,8 +66,7 @@
                        internal vref.
  * @channel:           channel specification
  * @num_channels:      number of channels
- * @powerdown_ltc:     Use alternative power down addressing as required by
- *                     ltc2617 and others.
+ * @regmap_type:       register map layout variant
  */
 
 struct ad5064_chip_info {
@@ -65,7 +74,7 @@ struct ad5064_chip_info {
        unsigned long internal_vref;
        const struct iio_chan_spec *channels;
        unsigned int num_channels;
-       bool powerdown_ltc;
+       enum ad5064_regmap_type regmap_type;
 };
 
 struct ad5064_state;
@@ -153,7 +162,7 @@ static int ad5064_sync_powerdown_mode(struct ad5064_state *st,
        unsigned int val, address;
        int ret;
 
-       if (st->chip_info->powerdown_ltc) {
+       if (st->chip_info->regmap_type == AD5064_REGMAP_LTC) {
                val = 0;
                address = chan->address;
        } else {
@@ -393,171 +402,190 @@ static const struct ad5064_chip_info ad5064_chip_info_tbl[] = {
                .shared_vref = false,
                .channels = ad5024_channels,
                .num_channels = 4,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_AD5025] = {
                .shared_vref = false,
                .channels = ad5025_channels,
                .num_channels = 2,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_AD5044] = {
                .shared_vref = false,
                .channels = ad5044_channels,
                .num_channels = 4,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_AD5045] = {
                .shared_vref = false,
                .channels = ad5045_channels,
                .num_channels = 2,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_AD5064] = {
                .shared_vref = false,
                .channels = ad5064_channels,
                .num_channels = 4,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_AD5064_1] = {
                .shared_vref = true,
                .channels = ad5064_channels,
                .num_channels = 4,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_AD5065] = {
                .shared_vref = false,
                .channels = ad5065_channels,
                .num_channels = 2,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_AD5628_1] = {
                .shared_vref = true,
                .internal_vref = 2500000,
                .channels = ad5024_channels,
                .num_channels = 8,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_AD5628_2] = {
                .shared_vref = true,
                .internal_vref = 5000000,
                .channels = ad5024_channels,
                .num_channels = 8,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_AD5629_1] = {
                .shared_vref = true,
                .internal_vref = 2500000,
                .channels = ad5629_channels,
                .num_channels = 8,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_AD5629_2] = {
                .shared_vref = true,
                .internal_vref = 5000000,
                .channels = ad5629_channels,
                .num_channels = 8,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_AD5648_1] = {
                .shared_vref = true,
                .internal_vref = 2500000,
                .channels = ad5044_channels,
                .num_channels = 8,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_AD5648_2] = {
                .shared_vref = true,
                .internal_vref = 5000000,
                .channels = ad5044_channels,
                .num_channels = 8,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_AD5666_1] = {
                .shared_vref = true,
                .internal_vref = 2500000,
                .channels = ad5064_channels,
                .num_channels = 4,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_AD5666_2] = {
                .shared_vref = true,
                .internal_vref = 5000000,
                .channels = ad5064_channels,
                .num_channels = 4,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_AD5668_1] = {
                .shared_vref = true,
                .internal_vref = 2500000,
                .channels = ad5064_channels,
                .num_channels = 8,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_AD5668_2] = {
                .shared_vref = true,
                .internal_vref = 5000000,
                .channels = ad5064_channels,
                .num_channels = 8,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_AD5669_1] = {
                .shared_vref = true,
                .internal_vref = 2500000,
                .channels = ad5669_channels,
                .num_channels = 8,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_AD5669_2] = {
                .shared_vref = true,
                .internal_vref = 5000000,
                .channels = ad5669_channels,
                .num_channels = 8,
+               .regmap_type = AD5064_REGMAP_ADI,
        },
        [ID_LTC2606] = {
                .shared_vref = true,
                .internal_vref = 0,
                .channels = ltc2607_channels,
                .num_channels = 1,
-               .powerdown_ltc = true,
+               .regmap_type = AD5064_REGMAP_LTC,
        },
        [ID_LTC2607] = {
                .shared_vref = true,
                .internal_vref = 0,
                .channels = ltc2607_channels,
                .num_channels = 2,
-               .powerdown_ltc = true,
+               .regmap_type = AD5064_REGMAP_LTC,
        },
        [ID_LTC2609] = {
                .shared_vref = false,
                .internal_vref = 0,
                .channels = ltc2607_channels,
                .num_channels = 4,
-               .powerdown_ltc = true,
+               .regmap_type = AD5064_REGMAP_LTC,
        },
        [ID_LTC2616] = {
                .shared_vref = true,
                .internal_vref = 0,
                .channels = ltc2617_channels,
                .num_channels = 1,
-               .powerdown_ltc = true,
+               .regmap_type = AD5064_REGMAP_LTC,
        },
        [ID_LTC2617] = {
                .shared_vref = true,
                .internal_vref = 0,
                .channels = ltc2617_channels,
                .num_channels = 2,
-               .powerdown_ltc = true,
+               .regmap_type = AD5064_REGMAP_LTC,
        },
        [ID_LTC2619] = {
                .shared_vref = false,
                .internal_vref = 0,
                .channels = ltc2617_channels,
                .num_channels = 4,
-               .powerdown_ltc = true,
+               .regmap_type = AD5064_REGMAP_LTC,
        },
        [ID_LTC2626] = {
                .shared_vref = true,
                .internal_vref = 0,
                .channels = ltc2627_channels,
                .num_channels = 1,
-               .powerdown_ltc = true,
+               .regmap_type = AD5064_REGMAP_LTC,
        },
        [ID_LTC2627] = {
                .shared_vref = true,
                .internal_vref = 0,
                .channels = ltc2627_channels,
                .num_channels = 2,
-               .powerdown_ltc = true,
+               .regmap_type = AD5064_REGMAP_LTC,
        },
        [ID_LTC2629] = {
                .shared_vref = false,
                .internal_vref = 0,
                .channels = ltc2627_channels,
                .num_channels = 4,
-               .powerdown_ltc = true,
+               .regmap_type = AD5064_REGMAP_LTC,
        },
 };