On Mon, May 14, 2018 at 12:18:42AM +0300, Dmitry Osipenko wrote: > Reading of status register within the interrupt handler fails with -EAGAIN > if I2C is busy with handling some other request at the same time. Move the > actual interrupt handling into a workqueue to avoid the unfortunate I2C > failure and to avoid hanging CPU in interrupt up to 1 second (transfer > timeout in the Tegra I2C driver). > > Signed-off-by: Dmitry Osipenko <[email protected]> > --- > drivers/mfd/tps6586x.c | 40 +++++++++++++++++++++++++++++----------- > 1 file changed, 29 insertions(+), 11 deletions(-)
Could this not be achieved with a threaded interrupt handler? Thierry
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