i2c: ocores: do not handle IRQ if IF is not set

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If the Interrupt Flag (IF) is not set, we should not handle the IRQ:
- the line can be shared with other devices
- it can be a spurious interrupt

To avoid reading twice the status register, the ocores_process() function
expects it to be read by the caller.

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
Acked-by: Peter Korsgaard <peter@korsgaard.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

...

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Federico Vaga 2019-02-14 09:51:31 +01:00 • committed by Wolfram Sang

parent e7663ef5ae

commit 2dc9834688

1 changed files with 6 additions and 3 deletions

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drivers/i2c/busses/i2c-ocores.c

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