Ulaş Sertan Kemeç b813b61a6e arch/arm/am67: Add I2C0/WKUP_I2C0 master driver. ... Adds an I2C master driver for the AM67 I2C instances, completing transfers on ARDY as the K3 controller signals. Bring-up is deferred to the first transfer, because the Linux Device Manager enables the I2C clocks late and touching the bus during early board init is not safe here. The last reference drop clears the flag so the next transfer re-initialises the hardware. t3-gem-o1 registers WKUP_I2C0 as /dev/i2c2. Verified on t3-gem-o1: i2c dev finds 0x30, 0x40, 0x51 and 0x68, the RTC at 0x68 reads a ticking BCD seconds register, repeated reads are consistent, and NACK recovery returns the bus to a usable state. Assisted-by: Claude Code:claude-fable-5 Assisted-by: Claude Code:claude-opus-4-8 Signed-off-by: Ulaş Sertan Kemeç <sertan.usk@gmail.com>		2026-09-17 13:49:35 +08:00
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irq.h