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Commit bf7571c00dca ("extcon: usbc-tusb320: Add USB TYPE-C support")
added an optional Type-C interface to the driver but missed to check
if it is in use when calling the IRQ handler. This causes an oops on
devices currently using the old extcon interface. Check if a Type-C
port is registered before calling the Type-C IRQ handler.
Fixes: bf7571c00dca ("extcon: usbc-tusb320: Add USB TYPE-C support")
Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20221107153317.657803-1-y.oudjana@protonmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix the warning:
drivers/extcon/extcon-usbc-tusb320.c:19: warning: expecting prototype
for drivers/extcon/extcon-tusb320.c(). Prototype was for TUSB320_REG8()
instead
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Rong Chen <rong.a.chen@intel.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
The TI TUSB320 seems like a better fit for USB TYPE-C subsystem,
which can expose details collected by the TUSB320 in a far more
precise way than extcon. Since there are existing users in the
kernel and in DT which depend on the extcon interface, keep it
for now.
Add TYPE-C interface and expose the supported supply current,
direction and connector polarity via the TYPE-C interface.
Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Move extcon code into separate functions in preparation for addition of
USB TYPE-C support. No functional change.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
TUSB320L is a newer chip with additional features, and it has additional steps
in its mode changing sequence:
- Disable CC state machine,
- Write to mode register,
- Wait for 5 ms,
- Re-enable CC state machine.
It also has an additional register that a revision number can be read from.
Add support for the mode changing sequence, and read the revision number during
probe and print it as info.
Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reset the chip and set its mode to default (maintain mode set by PORT pin)
during probe to make sure it comes up in the default state.
Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
This patch adds an extcon driver for the TI TUSB320 USB Type-C device.
This can be used to detect whether the port is configured as a
downstream or upstream facing port.
Signed-off-by: Michael Auchter <michael.auchter@ni.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
