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Reading an empty FIFO on the IP version used in TDA54 triggers a data abort. The interrupt storm this dummy read was meant to avoid no longer occurs on this version of the IP, so skip the read via a new capability. Also, guard the empty FIFO reads during startup and shutdown of the port using the same capability. Changes since v1: Link: https://lore.kernel.org/all/20260911092529.306082-1-m-shah@ti.com/ - Gate the empty FIFO read during startup and shutdown of the UART port using the new capability. - Make use of the new capability in the driver as to skip empty FIFO read, replacing the quirk which was being used. Moteen Shah (2): dt-bindings: serial: snps-dw-apb-uart: Add ti,tda54-uart serial: 8250_dw: Add capability to skip empty FIFO read .../bindings/serial/snps-dw-apb-uart.yaml | 1 + drivers/tty/serial/8250/8250.h | 1 + drivers/tty/serial/8250/8250_dw.c | 16 +++++++++++++++- drivers/tty/serial/8250/8250_port.c | 12 +++++++++--- 4 files changed, 26 insertions(+), 4 deletions(-) -- 2.34.1