This patch set improves RXWATER setting for lpuart, also adds support for imx8ulp which has different rx_watermark value with imx7ulp. Sherry Sun (6): tty: serial: fsl_lpuart: make rx_watermark configurable for different platforms tty: serial: fsl_lpuart: set receive watermark for imx8qxp platform tty: serial: fsl_lpuart: Fix the wrong RXWATER setting for rx dma case tty: serial: fsl_lpuart: Enable Receiver Idle Empty function for LPUART tty: serial: fsl_lpuart: set RTS watermark for lpuart tty: serial: fsl_lpuart: add imx8ulp support drivers/tty/serial/fsl_lpuart.c | 50 +++++++++++++++++++++++++++------ 1 file changed, 41 insertions(+), 9 deletions(-) -- 2.17.1