Re: [PATCH 11/15] iio:adc:ad799x: Add helper function to read/write config register

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On 06/04/2014 12:42 AM, Peter Meerwald wrote:
16-bit on ad7997/ad7998, 8-bit elsewhere

Signed-off-by: Peter Meerwald <pmeerw@xxxxxxxxxx>

Acked-by: Lars-Peter Clausen <lars@xxxxxxxxxx>

Should this and patch 13 be considered a bug fix?

---
  drivers/iio/adc/ad799x.c | 24 ++++++++++++++++++++++++
  1 file changed, 24 insertions(+)

diff --git a/drivers/iio/adc/ad799x.c b/drivers/iio/adc/ad799x.c
index dbc7c2b..0219970 100644
--- a/drivers/iio/adc/ad799x.c
+++ b/drivers/iio/adc/ad799x.c
@@ -136,6 +136,30 @@ struct ad799x_state {
  	unsigned int			transfer_size;
  };

+static int ad799x_write_config(struct ad799x_state *st, u16 val)
+{
+	switch (st->id) {
+	case ad7997:
+	case ad7998:
+		return i2c_smbus_write_word_swapped(st->client, AD7998_CONF_REG,
+			val);
+	default:
+		return i2c_smbus_write_byte_data(st->client, AD7998_CONF_REG,
+			val);
+	}
+}
+
+static int ad799x_read_config(struct ad799x_state *st)
+{
+	switch (st->id) {
+	case ad7997:
+	case ad7998:
+		return i2c_smbus_read_word_swapped(st->client, AD7998_CONF_REG);
+	default:
+		return i2c_smbus_read_byte_data(st->client, AD7998_CONF_REG);
+	}
+}
+
  /**
   * ad799x_trigger_handler() bh of trigger launched polling to ring buffer
   *


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