i2c-cht-wc: Ack read irqs after reading the data register

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Testing has shown that writing 1 to clear the read-complete irq does
not work until the data register has been read first.

This commit fixes the driver to read the data register first, halving the
amount of interrupts in most cases since we mostly read on this i2c bus.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

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Hans de Goede 2017-08-14 22:17:25 +02:00 • committed by Wolfram Sang

parent a5a46bd008

commit 8de60c636e

1 changed files with 19 additions and 10 deletions

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drivers/i2c/busses/i2c-cht-wc.c

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