The TCA9538 is an 8 bit version of the already supported TCA9539.
This chip also has interrupt support.

Signed-off-by: Liam Beguin <liambeguin@gmail.com>
---
Liam Beguin (2):
      gpio: pca953x: add support for TCA9538
      dt-bindings: gpio: pca95xx: document new tca9538 chip

 Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml | 1 +
 drivers/gpio/gpio-pca953x.c                              | 2 ++
 2 files changed, 3 insertions(+)
---
base-commit: a5e505a99ca748583dbe558b691be1b26f05d678
change-id: 20230824-tca9538-4dbf8d93f1ba

Best regards,
-- 
Liam Beguin <liambeguin@gmail.com>