Move the SPI and I2C specific write callbacks to the respective
"#if IS_ENABLED(CONFIG_SPI_MASTER)" and "#if IS_ENABLED(CONFIG_I2C)"
protected sections of the code.
This fixes the following warning which occurs if CONFIG_I2C is not set:
drivers/iio/dac/ad5064.c: In function ‘ad5064_i2c_write’:
drivers/iio/dac/ad5064.c:132: error: implicit declaration of function ‘i2c_master_send’
And the follwing warning which occurs when CONFIG_SPI_MASTER is not set:
drivers/iio/dac/ad5064.c:137: warning: ‘ad5064_spi_write’ defined but not used
Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxx>
Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
---
drivers/iio/dac/ad5064.c | 38 +++++++++++++++++++-------------------
1 file changed, 19 insertions(+), 19 deletions(-)
diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c
index aa739c4..de2c368 100644
--- a/drivers/iio/dac/ad5064.c
+++ b/drivers/iio/dac/ad5064.c
@@ -122,25 +122,6 @@ enum ad5064_type {
ID_AD5668_2,
};
-static int ad5064_i2c_write(struct ad5064_state *st, unsigned int cmd,
- unsigned int addr, unsigned int val)
-{
- struct i2c_client *i2c = to_i2c_client(st->dev);
-
- st->data.i2c[0] = (cmd << 4) | addr;
- put_unaligned_be16(val, &st->data.i2c[1]);
- return i2c_master_send(i2c, st->data.i2c, 3);
-}
-
-static int ad5064_spi_write(struct ad5064_state *st, unsigned int cmd,
- unsigned int addr, unsigned int val)
-{
- struct spi_device *spi = to_spi_device(st->dev);
-
- st->data.spi = cpu_to_be32(AD5064_CMD(cmd) | AD5064_ADDR(addr) | val);
- return spi_write(spi, &st->data.spi, sizeof(st->data.spi));
-}
-
static int ad5064_write(struct ad5064_state *st, unsigned int cmd,
unsigned int addr, unsigned int val, unsigned int shift)
{
@@ -533,6 +514,15 @@ static int __devexit ad5064_remove(struct device *dev)
#if IS_ENABLED(CONFIG_SPI_MASTER)
+static int ad5064_spi_write(struct ad5064_state *st, unsigned int cmd,
+ unsigned int addr, unsigned int val)
+{
+ struct spi_device *spi = to_spi_device(st->dev);
+
+ st->data.spi = cpu_to_be32(AD5064_CMD(cmd) | AD5064_ADDR(addr) | val);
+ return spi_write(spi, &st->data.spi, sizeof(st->data.spi));
+}
+
static int __devinit ad5064_spi_probe(struct spi_device *spi)
{
const struct spi_device_id *id = spi_get_device_id(spi);
@@ -596,6 +586,16 @@ static inline void ad5064_spi_unregister_driver(void) { }
#if IS_ENABLED(CONFIG_I2C)
+static int ad5064_i2c_write(struct ad5064_state *st, unsigned int cmd,
+ unsigned int addr, unsigned int val)
+{
+ struct i2c_client *i2c = to_i2c_client(st->dev);
+
+ st->data.i2c[0] = (cmd << 4) | addr;
+ put_unaligned_be16(val, &st->data.i2c[1]);
+ return i2c_master_send(i2c, st->data.i2c, 3);
+}
+
static int __devinit ad5064_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
--
1.7.10.4
--
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