diff options
Diffstat (limited to 'drivers/iio/dac/ltc2632.c')
| -rw-r--r-- | drivers/iio/dac/ltc2632.c | 67 |
1 files changed, 64 insertions, 3 deletions
diff --git a/drivers/iio/dac/ltc2632.c b/drivers/iio/dac/ltc2632.c index 7adc91056aa1..f891311f05cf 100644 --- a/drivers/iio/dac/ltc2632.c +++ b/drivers/iio/dac/ltc2632.c @@ -12,6 +12,8 @@ #include <linux/iio/iio.h> #include <linux/regulator/consumer.h> +#include <asm/unaligned.h> + #define LTC2632_CMD_WRITE_INPUT_N 0x0 #define LTC2632_CMD_UPDATE_DAC_N 0x1 #define LTC2632_CMD_WRITE_INPUT_N_UPDATE_ALL 0x2 @@ -24,6 +26,7 @@ /** * struct ltc2632_chip_info - chip specific information * @channels: channel spec for the DAC + * @num_channels: DAC channel count of the chip * @vref_mv: internal reference voltage */ struct ltc2632_chip_info { @@ -53,6 +56,12 @@ enum ltc2632_supported_device_ids { ID_LTC2632H12, ID_LTC2632H10, ID_LTC2632H8, + ID_LTC2634L12, + ID_LTC2634L10, + ID_LTC2634L8, + ID_LTC2634H12, + ID_LTC2634H10, + ID_LTC2634H8, ID_LTC2636L12, ID_LTC2636L10, ID_LTC2636L8, @@ -75,9 +84,7 @@ static int ltc2632_spi_write(struct spi_device *spi, * 10-, 8-bit input code followed by 4, 6, or 8 don't care bits. */ data = (cmd << 20) | (addr << 16) | (val << shift); - msg[0] = data >> 16; - msg[1] = data >> 8; - msg[2] = data; + put_unaligned_be24(data, &msg[0]); return spi_write(spi, msg, sizeof(msg)); } @@ -235,6 +242,36 @@ static const struct ltc2632_chip_info ltc2632_chip_info_tbl[] = { .num_channels = 2, .vref_mv = 4096, }, + [ID_LTC2634L12] = { + .channels = ltc2632x12_channels, + .num_channels = 4, + .vref_mv = 2500, + }, + [ID_LTC2634L10] = { + .channels = ltc2632x10_channels, + .num_channels = 4, + .vref_mv = 2500, + }, + [ID_LTC2634L8] = { + .channels = ltc2632x8_channels, + .num_channels = 4, + .vref_mv = 2500, + }, + [ID_LTC2634H12] = { + .channels = ltc2632x12_channels, + .num_channels = 4, + .vref_mv = 4096, + }, + [ID_LTC2634H10] = { + .channels = ltc2632x10_channels, + .num_channels = 4, + .vref_mv = 4096, + }, + [ID_LTC2634H8] = { + .channels = ltc2632x8_channels, + .num_channels = 4, + .vref_mv = 4096, + }, [ID_LTC2636L12] = { .channels = ltc2632x12_channels, .num_channels = 8, @@ -356,6 +393,12 @@ static const struct spi_device_id ltc2632_id[] = { { "ltc2632-h12", (kernel_ulong_t)<c2632_chip_info_tbl[ID_LTC2632H12] }, { "ltc2632-h10", (kernel_ulong_t)<c2632_chip_info_tbl[ID_LTC2632H10] }, { "ltc2632-h8", (kernel_ulong_t)<c2632_chip_info_tbl[ID_LTC2632H8] }, + { "ltc2634-l12", (kernel_ulong_t)<c2632_chip_info_tbl[ID_LTC2634L12] }, + { "ltc2634-l10", (kernel_ulong_t)<c2632_chip_info_tbl[ID_LTC2634L10] }, + { "ltc2634-l8", (kernel_ulong_t)<c2632_chip_info_tbl[ID_LTC2634L8] }, + { "ltc2634-h12", (kernel_ulong_t)<c2632_chip_info_tbl[ID_LTC2634H12] }, + { "ltc2634-h10", (kernel_ulong_t)<c2632_chip_info_tbl[ID_LTC2634H10] }, + { "ltc2634-h8", (kernel_ulong_t)<c2632_chip_info_tbl[ID_LTC2634H8] }, { "ltc2636-l12", (kernel_ulong_t)<c2632_chip_info_tbl[ID_LTC2636L12] }, { "ltc2636-l10", (kernel_ulong_t)<c2632_chip_info_tbl[ID_LTC2636L10] }, { "ltc2636-l8", (kernel_ulong_t)<c2632_chip_info_tbl[ID_LTC2636L8] }, @@ -386,6 +429,24 @@ static const struct of_device_id ltc2632_of_match[] = { .compatible = "lltc,ltc2632-h8", .data = <c2632_chip_info_tbl[ID_LTC2632H8] }, { + .compatible = "lltc,ltc2634-l12", + .data = <c2632_chip_info_tbl[ID_LTC2634L12] + }, { + .compatible = "lltc,ltc2634-l10", + .data = <c2632_chip_info_tbl[ID_LTC2634L10] + }, { + .compatible = "lltc,ltc2634-l8", + .data = <c2632_chip_info_tbl[ID_LTC2634L8] + }, { + .compatible = "lltc,ltc2634-h12", + .data = <c2632_chip_info_tbl[ID_LTC2634H12] + }, { + .compatible = "lltc,ltc2634-h10", + .data = <c2632_chip_info_tbl[ID_LTC2634H10] + }, { + .compatible = "lltc,ltc2634-h8", + .data = <c2632_chip_info_tbl[ID_LTC2634H8] + }, { .compatible = "lltc,ltc2636-l12", .data = <c2632_chip_info_tbl[ID_LTC2636L12] }, { |