Hi Carlos, On Thu, Jul 27, 2023 at 11:03:47AM +0800, carlos.song@xxxxxxx wrote: > From: Carlos Song <carlos.song@xxxxxxx> > > 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@xxxxxxx> thanks! Reviewed-by: Andi Shyti <andi.shyti@xxxxxxxxxx> Andi
