These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / iio / accel / mma9551_core.c

diff --git a/kernel/drivers/iio/accel/mma9551_core.c b/kernel/drivers/iio/accel/mma9551_core.c
index c6d5a3a..c34c5ce 100644 (file)
--- a/kernel/drivers/iio/accel/mma9551_core.c
+++ b/kernel/drivers/iio/accel/mma9551_core.c
@@ -297,7 +297,7 @@ EXPORT_SYMBOL(mma9551_read_status_byte);
  * Returns: 0 on success, negative value on failure.
  */
 int mma9551_read_config_word(struct i2c_client *client, u8 app_id,
-                           u16 reg, u16 *val)
+                            u16 reg, u16 *val)
 {
        int ret;
        __be16 v;
@@ -328,12 +328,12 @@ EXPORT_SYMBOL(mma9551_read_config_word);
  * Returns: 0 on success, negative value on failure.
  */
 int mma9551_write_config_word(struct i2c_client *client, u8 app_id,
-                            u16 reg, u16 val)
+                             u16 reg, u16 val)
 {
        __be16 v = cpu_to_be16(val);
 
        return mma9551_transfer(client, app_id, MMA9551_CMD_WRITE_CONFIG, reg,
-                               (u8 *) &v, 2, NULL, 0);
+                               (u8 *)&v, 2, NULL, 0);
 }
 EXPORT_SYMBOL(mma9551_write_config_word);
 
@@ -373,8 +373,8 @@ EXPORT_SYMBOL(mma9551_read_status_word);
  * @client:    I2C client
  * @app_id:    Application ID
  * @reg:       Application register
- * @len:       Length of array to read in bytes
- * @val:       Array of words to read
+ * @len:       Length of array to read (in words)
+ * @buf:       Array of words to read
  *
  * Read multiple configuration registers (word-sized registers).
  *
@@ -385,23 +385,22 @@ EXPORT_SYMBOL(mma9551_read_status_word);
  * Returns: 0 on success, negative value on failure.
  */
 int mma9551_read_config_words(struct i2c_client *client, u8 app_id,
-                            u16 reg, u8 len, u16 *buf)
+                             u16 reg, u8 len, u16 *buf)
 {
        int ret, i;
-       int len_words = len / sizeof(u16);
        __be16 be_buf[MMA9551_MAX_MAILBOX_DATA_REGS / 2];
 
-       if (len_words > ARRAY_SIZE(be_buf)) {
+       if (len > ARRAY_SIZE(be_buf)) {
                dev_err(&client->dev, "Invalid buffer size %d\n", len);
                return -EINVAL;
        }
 
        ret = mma9551_transfer(client, app_id, MMA9551_CMD_READ_CONFIG,
-                              reg, NULL, 0, (u8 *) be_buf, len);
+                              reg, NULL, 0, (u8 *)be_buf, len * sizeof(u16));
        if (ret < 0)
                return ret;
 
-       for (i = 0; i < len_words; i++)
+       for (i = 0; i < len; i++)
                buf[i] = be16_to_cpu(be_buf[i]);
 
        return 0;
@@ -413,8 +412,8 @@ EXPORT_SYMBOL(mma9551_read_config_words);
  * @client:    I2C client
  * @app_id:    Application ID
  * @reg:       Application register
- * @len:       Length of array to read in bytes
- * @val:       Array of words to read
+ * @len:       Length of array to read (in words)
+ * @buf:       Array of words to read
  *
  * Read multiple status registers (word-sized registers).
  *
@@ -428,20 +427,19 @@ int mma9551_read_status_words(struct i2c_client *client, u8 app_id,
                              u16 reg, u8 len, u16 *buf)
 {
        int ret, i;
-       int len_words = len / sizeof(u16);
        __be16 be_buf[MMA9551_MAX_MAILBOX_DATA_REGS / 2];
 
-       if (len_words > ARRAY_SIZE(be_buf)) {
+       if (len > ARRAY_SIZE(be_buf)) {
                dev_err(&client->dev, "Invalid buffer size %d\n", len);
                return -EINVAL;
        }
 
        ret = mma9551_transfer(client, app_id, MMA9551_CMD_READ_STATUS,
-                              reg, NULL, 0, (u8 *) be_buf, len);
+                              reg, NULL, 0, (u8 *)be_buf, len * sizeof(u16));
        if (ret < 0)
                return ret;
 
-       for (i = 0; i < len_words; i++)
+       for (i = 0; i < len; i++)
                buf[i] = be16_to_cpu(be_buf[i]);
 
        return 0;
@@ -453,8 +451,8 @@ EXPORT_SYMBOL(mma9551_read_status_words);
  * @client:    I2C client
  * @app_id:    Application ID
  * @reg:       Application register
- * @len:       Length of array to write in bytes
- * @val:       Array of words to write
+ * @len:       Length of array to write (in words)
+ * @buf:       Array of words to write
  *
  * Write multiple configuration registers (word-sized registers).
  *
@@ -468,19 +466,18 @@ int mma9551_write_config_words(struct i2c_client *client, u8 app_id,
                               u16 reg, u8 len, u16 *buf)
 {
        int i;
-       int len_words = len / sizeof(u16);
        __be16 be_buf[(MMA9551_MAX_MAILBOX_DATA_REGS - 1) / 2];
 
-       if (len_words > ARRAY_SIZE(be_buf)) {
+       if (len > ARRAY_SIZE(be_buf)) {
                dev_err(&client->dev, "Invalid buffer size %d\n", len);
                return -EINVAL;
        }
 
-       for (i = 0; i < len_words; i++)
+       for (i = 0; i < len; i++)
                be_buf[i] = cpu_to_be16(buf[i]);
 
        return mma9551_transfer(client, app_id, MMA9551_CMD_WRITE_CONFIG,
-                               reg, (u8 *) be_buf, len, NULL, 0);
+                               reg, (u8 *)be_buf, len * sizeof(u16), NULL, 0);
 }
 EXPORT_SYMBOL(mma9551_write_config_words);
 
@@ -800,7 +797,7 @@ EXPORT_SYMBOL(mma9551_read_accel_scale);
  */
 int mma9551_app_reset(struct i2c_client *client, u32 app_mask)
 {
-       return mma9551_write_config_byte(client, MMA9551_APPID_RCS,
+       return mma9551_write_config_byte(client, MMA9551_APPID_RSC,
                                         MMA9551_RSC_RESET +
                                         MMA9551_RSC_OFFSET(app_mask),
                                         MMA9551_RSC_VAL(app_mask));