hwmon: (it87) Fix fan tachometer reading in IT8712F rev 0x7 (I)
The IT8712F v0.9.1 datasheet applies to revisions >= 0x8 (J). The driver was incorrectly attempting to enable 16-bit fan readings on rev 0x7 (I) which led to incorrect RPM values. Signed-off-by: Andrew Paprocki <andrew@ishiboo.com> Tested-by: John Gumb <john.gumb@tandberg.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
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@ -273,10 +273,10 @@ struct it87_data {
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static inline int has_16bit_fans(const struct it87_data *data)
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{
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/* IT8705F Datasheet 0.4.1, 3h == Version G.
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IT8712F Datasheet 0.9.1, section 8.3.5 indicates 7h == Version I.
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IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J.
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These are the first revisions with 16bit tachometer support. */
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return (data->type == it87 && data->revision >= 0x03)
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|| (data->type == it8712 && data->revision >= 0x07)
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|| (data->type == it8712 && data->revision >= 0x08)
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|| data->type == it8716
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|| data->type == it8718;
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}
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