iio: accel: mma9553: comment and error message fixes

Use "GPIO" instead of "gpio" and "ACPI" instead of "acpi".

Includes a couple of small style fixes in comments
(missing full stop, whitespace, paranthesis).

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Suggested-by: Hartmut Knaack <knaack.h@gmx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/accel/mma9553.c b/drivers/iio/accel/mma9553.c
index f2118b1a7010e46255a70911c22243ab02423319..7c87ec41b8d05a1e00d12a859a1bca8554a57c25 100644 (file)
--- a/drivers/iio/accel/mma9553.c
+++ b/drivers/iio/accel/mma9553.c
@@ -75,14 +75,14 @@
 #define MMA9553_DEFAULT_GPIO_PIN       mma9551_gpio6
 #define MMA9553_DEFAULT_GPIO_POLARITY  0
 
-/* Bitnum used for gpio configuration = bit number in high status byte */
 #define STATUS_TO_BITNUM(bit)          (ffs(bit) - 9)
+/* Bitnum used for GPIO configuration = bit number in high status byte */
 
 #define MMA9553_DEFAULT_SAMPLE_RATE    30      /* Hz */
 
 /*
  * The internal activity level must be stable for ACTTHD samples before
- * ACTIVITY is updated.The ACTIVITY variable contains the current activity
+ * ACTIVITY is updated. The ACTIVITY variable contains the current activity
  * level and is updated every time a step is detected or once a second
  * if there are no steps.
  */
@@ -401,13 +401,13 @@ static int mma9553_init(struct mma9553_data *data)
                                      sizeof(data->conf), (u16 *) &data->conf);
        if (ret < 0) {
                dev_err(&data->client->dev,
-                       "device is not MMA9553L: failed to read cfg regs\n");
+                       "failed to read configuration registers\n");
                return ret;
        }
 
 
-       /* Reset gpio */
        data->gpio_bitnum = -1;
+       /* Reset GPIO */
        ret = mma9553_conf_gpio(data);
        if (ret < 0)
                return ret;
@@ -459,7 +459,8 @@ static int mma9553_read_raw(struct iio_dev *indio_dev,
                         * The HW only counts steps and other dependent
                         * parameters (speed, distance, calories, activity)
                         * if power is on (from enabling an event or the
-                        * step counter */
+                        * step counter).
+                        */
                        powered_on =
                            mma9553_is_any_event_enabled(data, false, 0) ||
                            data->stepcnt_enabled;
@@ -899,7 +900,7 @@ static int mma9553_get_calibgender_mode(struct iio_dev *indio_dev,
        gender = mma9553_get_bits(data->conf.filter, MMA9553_MASK_CONF_MALE);
        /*
         * HW expects 0 for female and 1 for male,
-        * while iio index is 0 for male and 1 for female
+        * while iio index is 0 for male and 1 for female.
         */
        return !gender;
 }
@@ -1111,16 +1112,16 @@ static int mma9553_gpio_probe(struct i2c_client *client)
 
        dev = &client->dev;
 
-       /* data ready gpio interrupt pin */
+       /* data ready GPIO interrupt pin */
        gpio = devm_gpiod_get_index(dev, MMA9553_GPIO_NAME, 0, GPIOD_IN);
        if (IS_ERR(gpio)) {
-               dev_err(dev, "acpi gpio get index failed\n");
+               dev_err(dev, "ACPI GPIO get index failed\n");
                return PTR_ERR(gpio);
        }
 
        ret = gpiod_to_irq(gpio);
 
-       dev_dbg(dev, "gpio resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
+       dev_dbg(dev, "GPIO resource, no:%d irq:%d\n", desc_to_gpio(gpio), ret);
 
        return ret;
 }