mfd: wm5102: Mark register write sequencer control 3 readable
During init the core checks if the wm5102 has finished starting by reading register 0x19 and looking at the value. This read always fails since this is not a readable register, mark it as being one. While we're at it provide a constant for the register name (as supplied by Charles Keepax). Signed-off-by: Mark Brown <broonie@linaro.org> Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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@ -784,7 +784,8 @@ int arizona_dev_init(struct arizona *arizona)
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/* Ensure device startup is complete */
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switch (arizona->type) {
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case WM5102:
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ret = regmap_read(arizona->regmap, 0x19, &val);
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ret = regmap_read(arizona->regmap,
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ARIZONA_WRITE_SEQUENCER_CTRL_3, &val);
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if (ret != 0)
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dev_err(dev,
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"Failed to check write sequencer state: %d\n",
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@ -1017,6 +1017,7 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg)
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case ARIZONA_WRITE_SEQUENCER_CTRL_0:
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case ARIZONA_WRITE_SEQUENCER_CTRL_1:
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case ARIZONA_WRITE_SEQUENCER_CTRL_2:
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case ARIZONA_WRITE_SEQUENCER_CTRL_3:
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case ARIZONA_WRITE_SEQUENCER_PROM:
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case ARIZONA_TONE_GENERATOR_1:
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case ARIZONA_TONE_GENERATOR_2:
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@ -27,6 +27,7 @@
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#define ARIZONA_WRITE_SEQUENCER_CTRL_0 0x16
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#define ARIZONA_WRITE_SEQUENCER_CTRL_1 0x17
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#define ARIZONA_WRITE_SEQUENCER_CTRL_2 0x18
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#define ARIZONA_WRITE_SEQUENCER_CTRL_3 0x19
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#define ARIZONA_WRITE_SEQUENCER_PROM 0x1A
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#define ARIZONA_TONE_GENERATOR_1 0x20
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#define ARIZONA_TONE_GENERATOR_2 0x21
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