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| /linux/drivers/tty/serial/ |
| H A D | qcom_geni_serial.c | diff 2aaa43c7077833301c237684cd7bc9ae5e3dec95 Thu Dec 29 16:50:30 CET 2022 Bartosz Golaszewski <bartosz.golaszewski@linaro.org> tty: serial: qcom-geni-serial: add support for serial engine DMA
The qcom-geni-serial driver currently only works in SE FIFO mode. This
limits the UART speed to around 180 kB/s. In order to achieve higher
speeds we need to use SE DMA mode.
Keep the console port working in FIFO mode but extend the code to use DMA
for the high-speed port.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20221229155030.418800-15-brgl@bgdev.pl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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