iio: dac: ad3552r: change AD3552R_NUM_CH define name

After model data and num_hw_channles introduction, we have:

ad3552r_desc, num_ch: used to keep channel number set in fdt,
ad35xxr_model_data, num_hw_channels: for max channel checks,
AD3552R_NUM_CH: just actually used to define the max array size
on allocated arrays.

Renaming AD3552R_NUM_CH to a more consistent name, as AD3552R_MAX_CH.

Signed-off-by: Angelo Dureghello <adureghello@baylibre.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20240522150141.1776196-6-adureghello@baylibre.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/dac/ad3552r.c b/drivers/iio/dac/ad3552r.c
index f573a6ad932629c93b72e55dbf1fc62e85d31c87..dac5b60cbd5eed1a03958d7abf3bf7eac61813bf 100644 (file)
--- a/drivers/iio/dac/ad3552r.c
+++ b/drivers/iio/dac/ad3552r.c
@@ -117,7 +117,7 @@
 #define AD3552R_REG_ADDR_CH_INPUT_24B(ch)              (0x4B - (1 - ch) * 3)
 
 /* Useful defines */
-#define AD3552R_NUM_CH                                 2
+#define AD3552R_MAX_CH                                 2
 #define AD3552R_MASK_CH(ch)                            BIT(ch)
 #define AD3552R_MASK_ALL_CH                            GENMASK(1, 0)
 #define AD3552R_MAX_REG_SIZE                           3
@@ -279,8 +279,8 @@ struct ad3552r_desc {
        struct gpio_desc        *gpio_reset;
        struct gpio_desc        *gpio_ldac;
        struct spi_device       *spi;
-       struct ad3552r_ch_data  ch_data[AD3552R_NUM_CH];
-       struct iio_chan_spec    channels[AD3552R_NUM_CH + 1];
+       struct ad3552r_ch_data  ch_data[AD3552R_MAX_CH];
+       struct iio_chan_spec    channels[AD3552R_MAX_CH + 1];
        unsigned long           enabled_ch;
        unsigned int            num_ch;
 };
@@ -539,7 +539,7 @@ static int32_t ad3552r_trigger_hw_ldac(struct gpio_desc *ldac)
 static int ad3552r_write_all_channels(struct ad3552r_desc *dac, u8 *data)
 {
        int err, len;
-       u8 addr, buff[AD3552R_NUM_CH * AD3552R_MAX_REG_SIZE + 1];
+       u8 addr, buff[AD3552R_MAX_CH * AD3552R_MAX_REG_SIZE + 1];
 
        addr = AD3552R_REG_ADDR_CH_INPUT_24B(1);
        /* CH1 */
@@ -597,7 +597,7 @@ static irqreturn_t ad3552r_trigger_handler(int irq, void *p)
        struct iio_buffer *buf = indio_dev->buffer;
        struct ad3552r_desc *dac = iio_priv(indio_dev);
        /* Maximum size of a scan */
-       u8 buff[AD3552R_NUM_CH * AD3552R_MAX_REG_SIZE];
+       u8 buff[AD3552R_MAX_CH * AD3552R_MAX_REG_SIZE];
        int err;
 
        memset(buff, 0, sizeof(buff));