mfd: Constify WM8994 write path
Allow const buffers to be passed in without type safety issues. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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@ -97,9 +97,9 @@ int wm8994_bulk_read(struct wm8994 *wm8994, unsigned short reg,
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EXPORT_SYMBOL_GPL(wm8994_bulk_read);
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static int wm8994_write(struct wm8994 *wm8994, unsigned short reg,
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int bytes, void *src)
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int bytes, const void *src)
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{
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u16 *buf = src;
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const u16 *buf = src;
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int i;
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BUG_ON(bytes % 2);
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@ -146,7 +146,7 @@ EXPORT_SYMBOL_GPL(wm8994_reg_write);
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* @buf: Buffer to write from. Data must be big-endian formatted.
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*/
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int wm8994_bulk_write(struct wm8994 *wm8994, unsigned short reg,
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int count, u16 *buf)
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int count, const u16 *buf)
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{
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int ret;
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@ -583,7 +583,7 @@ static int wm8994_i2c_read_device(struct wm8994 *wm8994, unsigned short reg,
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}
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static int wm8994_i2c_write_device(struct wm8994 *wm8994, unsigned short reg,
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int bytes, void *src)
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int bytes, const void *src)
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{
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struct i2c_client *i2c = wm8994->control_data;
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struct i2c_msg xfer[2];
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@ -59,7 +59,7 @@ struct wm8994 {
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int (*read_dev)(struct wm8994 *wm8994, unsigned short reg,
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int bytes, void *dest);
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int (*write_dev)(struct wm8994 *wm8994, unsigned short reg,
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int bytes, void *src);
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int bytes, const void *src);
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void *control_data;
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@ -89,7 +89,7 @@ int wm8994_set_bits(struct wm8994 *wm8994, unsigned short reg,
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int wm8994_bulk_read(struct wm8994 *wm8994, unsigned short reg,
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int count, u16 *buf);
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int wm8994_bulk_write(struct wm8994 *wm8994, unsigned short reg,
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int count, u16 *buf);
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int count, const u16 *buf);
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/* Helper to save on boilerplate */
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