mfd: wm8400-core: Delete wm8400_reg_read()
There was a static checker warning in wm8400_reg_read() because we were returning u16 and that can't hold the negative error codes. The function isn't used, so let's just delete it. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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@ -35,27 +35,6 @@ static bool wm8400_volatile(struct device *dev, unsigned int reg)
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}
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}
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/**
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* wm8400_reg_read - Single register read
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*
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* @wm8400: Pointer to wm8400 control structure
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* @reg: Register to read
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*
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* @return Read value
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*/
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u16 wm8400_reg_read(struct wm8400 *wm8400, u8 reg)
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{
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unsigned int val;
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int ret;
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ret = regmap_read(wm8400->regmap, reg, &val);
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if (ret < 0)
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return ret;
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return val;
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}
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EXPORT_SYMBOL_GPL(wm8400_reg_read);
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int wm8400_block_read(struct wm8400 *wm8400, u8 reg, int count, u16 *data)
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{
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return regmap_bulk_read(wm8400->regmap, reg, data, count);
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@ -923,7 +923,6 @@ struct wm8400 {
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#define WM8400_LINE_CMP_VTHD_SHIFT 0 /* LINE_CMP_VTHD - [3:0] */
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#define WM8400_LINE_CMP_VTHD_WIDTH 4 /* LINE_CMP_VTHD - [3:0] */
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u16 wm8400_reg_read(struct wm8400 *wm8400, u8 reg);
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int wm8400_block_read(struct wm8400 *wm8400, u8 reg, int count, u16 *data);
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static inline int wm8400_set_bits(struct wm8400 *wm8400, u8 reg,
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