If CONFIG_I2C_STATS is enabled, the device state for all I2C controller
drivers must contain the I2C stats. This space is allocated by calling
Z_I2C_INIT_FN as part of the device definition; this is done automatically
when using I2C_DEVICE_DT_DEFINE instead of DEVICE_DT_DEFINE. If space
for statistics is not properly allocated but CONFIG_I2C_STATS is enabled,
an unexpected write to memory outside of the stats region may occur on
an I2C transfer. This commit uses I2C_DEVICE_DT_DEFINE or
I2C_DEVICE_DT_INST_DEFINE for all in-tree SPI controller drivers that do
not already.
Signed-off-by: Dane Wagner <dane.wagner@gmail.com>
Use the RTIO work queue to fake the i2c submit calls for drivers which
haven't yet implemented the API. Applications can change the size of
the work queue pool depending on how much traffic they have on the buses.
Signed-off-by: Yuval Peress <peress@google.com>
This patch adds driver support for Microchip's PolarFire SoC I2C. This
initial support implements the Controller API only.
Signed-off-by: Conor Paxton <conor.paxton@microchip.com>
