linux-kernel - Re: [PATCH v4 2/5] i2c:ocores: do not handle IRQ if IF is not set

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Message-ID: <20190211102433.6m4s64t3wa63tru7@ninjato>
Date:   Mon, 11 Feb 2019 11:24:33 +0100
From:   Wolfram Sang <wsa@...-dreams.de>
To:     Federico Vaga <federico.vaga@...n.ch>
Cc:     Peter Korsgaard <peter@...sgaard.com>,
        Andrew Lunn <andrew@...n.ch>, linux-i2c@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/5] i2c:ocores: do not handle IRQ if IF is not set

On Mon, Feb 11, 2019 at 09:31:19AM +0100, Federico Vaga wrote:
> 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@...n.ch>
> Acked-by: Peter Korsgaard <peter@...sgaard.com>
> Reviewed-by: Andrew Lunn <andrew@...n.ch>
> 

Applied to for-next, thanks!


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