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Add a simple SpacemiT I2C driver for basic byte transfers over the I2C
bus, prioritizing simplicity over performance. The driver operates in
PIO mode and does not use interrupts, FIFO, or DMA.
The controller is reset at the start of each transaction to ensure a
known initial state, regardless of prior configuration by the kernel.
This also avoids the need for additional error recovery code.
This will be used for communication with onboard PMIC to reset and
power-off the board.
Signed-off-by: Aurelien Jarno <[email protected]>
Tested-by: Anand Moon <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Anup Patel <[email protected]>
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Starfive JH7110 I2C IP is synopsys designware.
Minimum StarFIve I2C driver to read/send bytes over I2C bus.
This allows querying information and perform operation of onboard PMIC,
as well as power-off and reset.
Signed-off-by: Minda Chen <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
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We update FDT support makefile to use kconfig for enabling/disabling.
To avoid compilation errors, we also enable FDT for each platform.
Signed-off-by: Anup Patel <[email protected]>
Tested-by: Andrew Jones <[email protected]>
Acked-by: Atish Patra <[email protected]>
Tested-by: Atish Patra <[email protected]>
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We update i2c drivers makefile to use kconfig for enabling/disabling
drivers. To avoid compile errors, we also enable appropriate i2c
drivers for each platform.
Signed-off-by: Anup Patel <[email protected]>
Tested-by: Andrew Jones <[email protected]>
Acked-by: Atish Patra <[email protected]>
Tested-by: Atish Patra <[email protected]>
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