The Dead Battery resistors interfere with port partner
detection. So, Dead Battery is disabled after the system
starts and sets the Rd or Rp resistors on the CC lines.
Tested on b_g474e_dpow1 with JP5 set to USBC.
Tested on stm32g081b_eval with JP17 set to D5V.
Signed-off-by: Sam Hurst <sbh1187@gmail.com>
This change enables the ISR Hard Reset sent bits, so that
an interrupt is generated when a Hard Reset is sent or
the Hard Reset failed.
Signed-off-by: Sam Hurst <sbh1187@gmail.com>
The Hard Reset sent signal was tested twice in the same
"if else" structure but only handled in the last test. This
change removes the first detection so that Hard Reset can
be correctly detected.
Signed-off-by: Sam Hurst <sbh1187@gmail.com>
When operating as a Source, the driver will wait indefinitely for
a GoodCRC message from a Sink. This PR adds a timer to trigger a
no response when a GoodCRC message isn't received.
Signed-off-by: Sam Hurst <sbh1187@gmail.com>
Since all UCPD devices share the same ISR, the interrupt
should be enabled after all UCPD devices are initialized.
Signed-off-by: Sam Hurst <sbh1187@gmail.com>
At system startup, the SYSCFG ITLINE registers might not
indicate an interrupt even though a UCPD interrupt is pending.
This cause the ISR to be called repeatedly without being serviced,
resulting in a system lockup. Reading the UCPD Status Reg instead
of the SYSCFG ITLINE register fixes the issue.
Signed-off-by: Sam Hurst <sbh1187@gmail.com>
Update TCPC driver to use DT_HAS_<compat>_ENABLED Kconfig symbol
to expose the driver and enable it by default based on devicetree.
Signed-off-by: Sam Hurst <sbh1187@gmail.com>
The "@return" command should be used for the arbitrary return
description, and "@retval <return value>" for the description
of named return value
Signed-off-by: Sam Hurst <sbh1187@gmail.com>
Use DT_NUM_INST_STATUS_OKAY(DT_DRV_COMPAT) to determine
number of potential interrupt sources. This mitigates
the wasting of memory on devices with mutliple UCPD ports
but only one UCPD port is used.
Signed-off-by: Sam Hurst <sbh1187@gmail.com>
Assign the pins for the STM32G071b and STM32G081b STM32
UCPD peripherals so the UCPD driver can properly
configure the device.
Signed-off-by: Sam Hurst <sbh1187@gmail.com>
Sam Hurst