When there's no irq(this can be due to various reasons, for example, no irq from HW support, or we just want to use poll solution, and so on), falling back to poll is still better than no support at all. patch1 makes the interrupt property in dt-binding optional patch2 falls back to poll if there's no interrupt since v1: - adopt Andy's suggestion to simplified the code Jisheng Zhang (2): dt-bindings: serial: snps-dw-apb-uart: make interrupt optional serial: 8250_dw: fall back to poll if there's no interrupt .../devicetree/bindings/serial/snps-dw-apb-uart.yaml | 1 - drivers/tty/serial/8250/8250_dw.c | 5 ++++- 2 files changed, 4 insertions(+), 2 deletions(-) -- 2.40.1
