iio: adc: ad4695: rename AD4695_MAX_VIN_CHANNELS

Rename AD4695_MAX_CHANNELS to AD4695_MAX_VIN_CHANNELS. It has been a
point of confusion that this macro is only the voltage input channels
and not all channels.

Reviewed-by: Trevor Gamblin <tgamblin@baylibre.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20250507-iio-introduce-iio_declare_buffer_with_ts-v6-4-4aee1b9f1b89@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/ad4695.c b/drivers/iio/adc/ad4695.c
index 992abf6..cda4196 100644 (file)
--- a/drivers/iio/adc/ad4695.c
+++ b/drivers/iio/adc/ad4695.c
@@ -105,7 +105,7 @@
 #define AD4695_REG_ACCESS_SCLK_HZ      (10 * MEGA)
 
 /* Max number of voltage input channels. */
-#define AD4695_MAX_CHANNELS            16
+#define AD4695_MAX_VIN_CHANNELS                16
 
 enum ad4695_in_pair {
        AD4695_IN_PAIR_REFGND,
@@ -143,8 +143,8 @@ struct ad4695_state {
        /* offload also requires separate gpio to manually control CNV */
        struct gpio_desc *cnv_gpio;
        /* voltages channels plus temperature and timestamp */
-       struct iio_chan_spec iio_chan[AD4695_MAX_CHANNELS + 2];
-       struct ad4695_channel_config channels_cfg[AD4695_MAX_CHANNELS];
+       struct iio_chan_spec iio_chan[AD4695_MAX_VIN_CHANNELS + 2];
+       struct ad4695_channel_config channels_cfg[AD4695_MAX_VIN_CHANNELS];
        const struct ad4695_chip_info *chip_info;
        int sample_freq_range[3];
        /* Reference voltage. */
@@ -157,10 +157,10 @@ struct ad4695_state {
         * to control CS and add a delay between the last SCLK and next
         * CNV rising edges.
         */
-       struct spi_transfer buf_read_xfer[AD4695_MAX_CHANNELS * 2 + 3];
+       struct spi_transfer buf_read_xfer[AD4695_MAX_VIN_CHANNELS * 2 + 3];
        struct spi_message buf_read_msg;
        /* Raw conversion data received. */
-       IIO_DECLARE_DMA_BUFFER_WITH_TS(u16, buf, AD4695_MAX_CHANNELS + 1);
+       IIO_DECLARE_DMA_BUFFER_WITH_TS(u16, buf, AD4695_MAX_VIN_CHANNELS + 1);
        u16 raw_data;
        /* Commands to send for single conversion. */
        u16 cnv_cmd;