> Note that reset controller support is optional, so we want to add > > select RESET_CONTROLLER if ARCH_RENESAS && ARM64 > > to the I2C_RCAR section drivers/i2c/busses/Kconfig. Else reset will fail > silently. Actually, no. I use a non-optional reset_controller_get[1], so I will get an ERR_PTR when !RESET_CONTROLLER. And I check for this ERR_PTR. So, it will work with !RESET_CONTROLLER, just without RXDMA always then. That worked fine with the old patch, need to test my new version now. [1] In fact, this function is deprecated and I replaced it with the now more explicit reset_control_get_exclusive(). Plus devm_*, of course.
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