Messages in this thread | | | Date | Thu, 27 Jul 2023 10:38:49 +0200 | From | Andi Shyti <> | Subject | Re: [PATCH v4] i2c: imx-lpi2c: directly return ISR when detect a NACK |
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Hi Carlos,
On Thu, Jul 27, 2023 at 11:03:47AM +0800, carlos.song@nxp.com wrote: > From: Carlos Song <carlos.song@nxp.com> > > A NACK flag in ISR means i2c bus error. In such condition, > there is no need to do read/write operation. > > In this patch, i2c will check MSR_NDF, MSR_RDF and MSR_TDF > flag in turn, it's making mutually exclusive NACK/read/write. > So when a NACK is received(MSR_NDF), i2c will return ISR > directly and then stop i2c transfer. > > Signed-off-by: Carlos Song <carlos.song@nxp.com>
thanks!
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Andi
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