Hello Miroslav, forgive me if it's a dumb question, but would this also apply to Intel platforms, or this kind of stuff chip maker specific? I got an Intel Tiger Lake. Thanks! Andrea IPPOLITO Il giorno gio 6 gen 2022 alle ore 16:03 Miroslav Bendík <miroslav.bendik@xxxxxxxxx> ha scritto: > > Address detection does not work because cd6h/cd7h port io can be > disabled, but > it's accessible using mmio. This patch: > https://lore.kernel.org/all/20210715221828.244536-1-Terry.Bowman@xxxxxxx/ > with > modified AMD_PCI_SMBUS_REVISION_MMIO fixed base address detection. > > Problem with RMI4 touchpad / trackpoint remains, because rmi4-smbus > needs host > notify feature. I have tried implement this feature, without success. > Interrupts > on IRQ 7 (SMBus) are generated only for block data transfers, but not for > trackpoint / touchpad move actions. I have looked at pinctrl_amd and it > looks, > that activity is signaled using GPIO. This looks promising: > > cat /sys/kernel/debug/pinctrl/AMDI0030:00/pingroups: > > group: i2c0 > pin 145 (GPIO_145) > pin 146 (GPIO_146) > > group: i2c1 > pin 147 (GPIO_147) > pin 148 (GPIO_148) > > group: i2c2 > pin 113 (GPIO_113) > pin 114 (GPIO_114) > > group: i2c3 > pin 19 (GPIO_19) > pin 20 (GPIO_20) > > After loading psmouse with forced enabled intertouch pin 19/20 started > generating events. >
