linux-imx
Public
Source
committed d87814a3e8446
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ret = i2c_smbus_read_byte_data(tc3589x->i2c, reg);47
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if (ret < 0)48
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dev_err(tc3589x->dev, "failed to read reg %#x: %d\n",49
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reg, ret);50
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return ret;52
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}53
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EXPORT_SYMBOL_GPL(tc3589x_reg_read);54
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/**56
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* tc3589x_reg_read() - write a single TC3589x register56
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* tc3589x_reg_write() - write a single TC3589x register57
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* @tc3589x: Device to write to58
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* @reg: Register to read59
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* @data: Value to write60
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*/61
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int tc3589x_reg_write(struct tc3589x *tc3589x, u8 reg, u8 data)62
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{63
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int ret;64
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ret = i2c_smbus_write_byte_data(tc3589x->i2c, reg, data);66
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if (ret < 0)111
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return ret;113
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}114
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EXPORT_SYMBOL_GPL(tc3589x_block_write);115
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/**117
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* tc3589x_set_bits() - set the value of a bitfield in a TC3589x register118
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* @tc3589x: Device to write to119
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* @reg: Register to write120
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* @mask: Mask of bits to set121
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* @values: Value to set121
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* @val: Value to set122
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*/123
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int tc3589x_set_bits(struct tc3589x *tc3589x, u8 reg, u8 mask, u8 val)124
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{125
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int ret;126
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mutex_lock(&tc3589x->lock);128
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ret = tc3589x_reg_read(tc3589x, reg);130
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if (ret < 0)131
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goto out;