On Thu, Dec 20, 2018 at 05:01:15AM +0000, DUNG NGUYEN wrote: > > The quirk code currently detects all compatible I2C chips with a shared IRQ line > > on all I2C busses, adds them into a list, and registers a bus notifier. For every > > chip for which the bus notifier triggers, the quirk code performs I2C transfer on > > that I2C bus for all addresses in the list. > > The problem is that this may generate transfers to non-existing chips on > > systems with multiple I2C busses. > > > > This patch adds a check to verify that the I2C bus to which the chip with shared > > IRQ is attached to matches the I2C bus of the chip which triggered the bus > > notifier and only starts the I2C transfer if they match. > > > > Signed-off-by: Marek Vasut <marek.vasut+renesas@xxxxxxxxx> > > Cc: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> > > Cc: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx> > > Cc: Simon Horman <horms+renesas@xxxxxxxxxxxx> > > Cc: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx> > > Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> > > Cc: linux-renesas-soc@xxxxxxxxxxxxxxx > > --- > Hi Mr Marek > > Tested-by: Nguyen Viet Dung <dung.nguyen.aj@xxxxxxxxxxx> > > I have tested this patch on H2 Lager with mainline v4.20-rc4 kernel. > Confirmed that the problem is improved by this patch. > > Best regards, Thanks, applied for v4.22.
