[PATCH v2 7/9] iio: adc: ad7606: change r/w_register signature

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The register read/write with IIO backend will require to claim the
direct mode, and doing so requires passing the corresponding iio_dev
structure.
So we need to modify the function signature to pass the iio_dev
structure.

Signed-off-by: Guillaume Stols <gstols@xxxxxxxxxxxx>
---
 drivers/iio/adc/ad7606.c     | 25 +++++++++++--------------
 drivers/iio/adc/ad7606.h     |  8 ++++----
 drivers/iio/adc/ad7606_spi.c | 10 +++++-----
 3 files changed, 20 insertions(+), 23 deletions(-)

diff --git a/drivers/iio/adc/ad7606.c b/drivers/iio/adc/ad7606.c
index 2f13b9cd2ed2..bf1f84367c72 100644
--- a/drivers/iio/adc/ad7606.c
+++ b/drivers/iio/adc/ad7606.c
@@ -574,13 +574,13 @@ static int ad7606_reg_access(struct iio_dev *indio_dev,
 	guard(mutex)(&st->lock);
 
 	if (readval) {
-		ret = st->bops->reg_read(st, reg);
+		ret = st->bops->reg_read(indio_dev, reg);
 		if (ret < 0)
 			return ret;
 		*readval = ret;
 		return 0;
 	} else {
-		return st->bops->reg_write(st, reg, writeval);
+		return st->bops->reg_write(indio_dev, reg, writeval);
 	}
 }
 
@@ -1148,26 +1148,26 @@ static const struct iio_trigger_ops ad7606_trigger_ops = {
 	.validate_device = iio_trigger_validate_own_device,
 };
 
-static int ad7606_write_mask(struct ad7606_state *st,
+static int ad7606_write_mask(struct iio_dev *indio_dev,
 			     unsigned int addr,
 			     unsigned long mask,
 			     unsigned int val)
 {
+	struct ad7606_state *st = iio_priv(indio_dev);
 	int readval;
 
-	readval = st->bops->reg_read(st, addr);
+	readval = st->bops->reg_read(indio_dev, addr);
 	if (readval < 0)
 		return readval;
 
 	readval &= ~mask;
 	readval |= val;
 
-	return st->bops->reg_write(st, addr, readval);
+	return st->bops->reg_write(indio_dev, addr, readval);
 }
 
 static int ad7616_write_scale_sw(struct iio_dev *indio_dev, int ch, int val)
 {
-	struct ad7606_state *st = iio_priv(indio_dev);
 	unsigned int ch_addr, mode, ch_index;
 
 	/*
@@ -1189,23 +1189,20 @@ static int ad7616_write_scale_sw(struct iio_dev *indio_dev, int ch, int val)
 	/* 0b01 for 2.5v, 0b10 for 5v and 0b11 for 10v */
 	mode = AD7616_RANGE_CH_MODE(ch_index, ((val + 1) & 0b11));
 
-	return ad7606_write_mask(st, ch_addr, AD7616_RANGE_CH_MSK(ch_index),
+	return ad7606_write_mask(indio_dev, ch_addr, AD7616_RANGE_CH_MSK(ch_index),
 				     mode);
 }
 
 static int ad7616_write_os_sw(struct iio_dev *indio_dev, int val)
 {
-	struct ad7606_state *st = iio_priv(indio_dev);
 
-	return ad7606_write_mask(st, AD7616_CONFIGURATION_REGISTER,
+	return ad7606_write_mask(indio_dev, AD7616_CONFIGURATION_REGISTER,
 				     AD7616_OS_MASK, val << 2);
 }
 
 static int ad7606_write_scale_sw(struct iio_dev *indio_dev, int ch, int val)
 {
-	struct ad7606_state *st = iio_priv(indio_dev);
-
-	return ad7606_write_mask(st,
+	return ad7606_write_mask(indio_dev,
 				 AD7606_RANGE_CH_ADDR(ch),
 				 AD7606_RANGE_CH_MSK(ch),
 				 AD7606_RANGE_CH_MODE(ch, val));
@@ -1215,7 +1212,7 @@ static int ad7606_write_os_sw(struct iio_dev *indio_dev, int val)
 {
 	struct ad7606_state *st = iio_priv(indio_dev);
 
-	return st->bops->reg_write(st, AD7606_OS_MODE, val);
+	return st->bops->reg_write(indio_dev, AD7606_OS_MODE, val);
 }
 
 static int ad7616_sw_mode_setup(struct iio_dev *indio_dev)
@@ -1236,7 +1233,7 @@ static int ad7616_sw_mode_setup(struct iio_dev *indio_dev)
 		return ret;
 
 	/* Activate Burst mode and SEQEN MODE */
-	return ad7606_write_mask(st,
+	return ad7606_write_mask(indio_dev,
 			      AD7616_CONFIGURATION_REGISTER,
 			      AD7616_BURST_MODE | AD7616_SEQEN_MODE,
 			      AD7616_BURST_MODE | AD7616_SEQEN_MODE);
diff --git a/drivers/iio/adc/ad7606.h b/drivers/iio/adc/ad7606.h
index 7a044b499cfe..eca7ea99e24d 100644
--- a/drivers/iio/adc/ad7606.h
+++ b/drivers/iio/adc/ad7606.h
@@ -235,10 +235,10 @@ struct ad7606_bus_ops {
 	int (*iio_backend_config)(struct device *dev, struct iio_dev *indio_dev);
 	int (*read_block)(struct device *dev, int num, void *data);
 	int (*sw_mode_config)(struct iio_dev *indio_dev);
-	int (*reg_read)(struct ad7606_state *st, unsigned int addr);
-	int (*reg_write)(struct ad7606_state *st,
-				unsigned int addr,
-				unsigned int val);
+	int (*reg_read)(struct iio_dev *indio_dev, unsigned int addr);
+	int (*reg_write)(struct iio_dev *indio_dev,
+			 unsigned int addr,
+			 unsigned int val);
 	int (*update_scan_mode)(struct iio_dev *indio_dev, const unsigned long *scan_mask);
 	u16 (*rd_wr_cmd)(int addr, char isWriteOp);
 };
diff --git a/drivers/iio/adc/ad7606_spi.c b/drivers/iio/adc/ad7606_spi.c
index e08563dd1108..15bfa7a427d9 100644
--- a/drivers/iio/adc/ad7606_spi.c
+++ b/drivers/iio/adc/ad7606_spi.c
@@ -124,8 +124,9 @@ static int ad7606_spi_read_block18to32(struct device *dev,
 	return spi_sync_transfer(spi, &xfer, 1);
 }
 
-static int ad7606_spi_reg_read(struct ad7606_state *st, unsigned int addr)
+static int ad7606_spi_reg_read(struct iio_dev *indio_dev, unsigned int addr)
 {
+	struct ad7606_state *st = iio_priv(indio_dev);
 	struct spi_device *spi = to_spi_device(st->dev);
 	struct spi_transfer t[] = {
 		{
@@ -148,10 +149,11 @@ static int ad7606_spi_reg_read(struct ad7606_state *st, unsigned int addr)
 	return be16_to_cpu(st->d16[1]);
 }
 
-static int ad7606_spi_reg_write(struct ad7606_state *st,
+static int ad7606_spi_reg_write(struct iio_dev *indio_dev,
 				unsigned int addr,
 				unsigned int val)
 {
+	struct ad7606_state *st = iio_priv(indio_dev);
 	struct spi_device *spi = to_spi_device(st->dev);
 
 	st->d16[0] = cpu_to_be16((st->bops->rd_wr_cmd(addr, 1) << 8) |
@@ -162,8 +164,6 @@ static int ad7606_spi_reg_write(struct ad7606_state *st,
 
 static int ad7616_sw_mode_config(struct iio_dev *indio_dev)
 {
-	struct ad7606_state *st = iio_priv(indio_dev);
-
 	/*
 	 * Scale can be configured individually for each channel
 	 * in software mode.
@@ -178,7 +178,7 @@ static int ad7606B_sw_mode_config(struct iio_dev *indio_dev)
 	struct ad7606_state *st = iio_priv(indio_dev);
 
 	/* Configure device spi to output on a single channel */
-	st->bops->reg_write(st,
+	st->bops->reg_write(indio_dev,
 			    AD7606_CONFIGURATION_REGISTER,
 			    AD7606_SINGLE_DOUT);
 

-- 
2.34.1





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