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mfd: ntxec: Support for EC in Tolino Shine 2 HD

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Add the version of the EC in the Tolino Shine 2 HD
to the supported versions. It seems not to have an RTC
and does not ack data written to it.
The vendor kernel happily ignores write errors, using
I2C via userspace i2c-set also shows the error.
So add a quirk to ignore that error.

PWM can be successfully configured despite of that error.

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Andreas Kemnade
2021-03-15 20:18:32 +01:00
committed by Lee Jones
parent 4917e498c6
commit d1157530d4
2 changed files with 54 additions and 3 deletions
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include/linux/mfd/ntxec.h
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@@ -33,5 +33,6 @@ static inline __be16 ntxec_reg8(u8 value)
/* Known firmware versions */
#define NTXEC_VERSION_KOBO_AURA 0xd726 /* found in Kobo Aura */
#define NTXEC_VERSION_TOLINO_SHINE2 0xf110 /* found in Tolino Shine 2 HD */
#endif