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fb3e0557a4
The I2C interrupts are only routed to the legacy interrupt controller. This means that for modern device trees that use the GIC, the interrupts don't work. This patch adds a splitter to route the I2C interrupt to both the legacy interrupt controller and the GIC. Testing Add these lines to QEMU invocation -drive if=none,id=i2c_storage,format=raw,file=eeprom.bin \ -device at24c-eeprom,bus=i2c-bus.1,address=0x50,drive=i2c_storage,rom-size=4096 \ note: eeprom.bin is all zeros Before this change, running i2c get to read from EEPROM would result in this i2cget -y 1 0x50 Error: Read failed After this change, running i2c to read from EEPROM results in this i2cget -y 1 0x50 0x00 The eeprom can now also be enabled in the device tree. Before the eeprom driver load would fail due to the read failing ls -l /sys/bus/i2c/devices/i2c-1/1-0050/ | grep -i eeprom -rw------- 1 root root 4096 May 17 16:57 eeprom Signed-off-by: Nicholas Righi <nicholasrighi@gmail.com> Message-id: 20260609024027.22140-1-nicholasrighi@gmail.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>