From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx> The goal of this series is to update the qcom-geni-serial driver to use the DMA mode of the QUPv3 serial engine. This is accomplished by the last patch in the series. The previous ones contain either various tweaks, reworks and refactoring or prepare the driver for adding DMA support. More work will follow on the serial engine in order to reduce code redundancy among its users and add support for SE DMA to the qcom GENI SPI driver. v3 -> v4: - don't assign NULL (even cast) to variables of type dma_addr_t - refactor checking the SE_GENI_STATUS into two inline functions - drop min_t() in favor of regular min() after adding some consistency to types - check if the abort command was successful and emit a message if not when stopping TX in DMA mode v2 -> v3: - drop devres patches from the series v1 -> v2: - turn to_dev_uport() macro into a static inline function - use CIRC_CNT_TO_END() and uart_xmit_advance() where applicable and don't handle xmit->tail directly - drop sizeof() where BYTES_PER_FIFO_WORD can be used - further refactor qcom_geni_serial_handle_tx_fifo() - collect review tags Bartosz Golaszewski (13): tty: serial: qcom-geni-serial: drop unneeded forward definitions tty: serial: qcom-geni-serial: remove unused symbols tty: serial: qcom-geni-serial: align #define values tty: serial: qcom-geni-serial: improve the to_dev_port() macro tty: serial: qcom-geni-serial: remove stray newlines tty: serial: qcom-geni-serial: refactor qcom_geni_serial_isr() tty: serial: qcom-geni-serial: remove unneeded tabs tty: serial: qcom-geni-serial: refactor qcom_geni_serial_handle_tx() tty: serial: qcom-geni-serial: drop the return value from handle_rx tty: serial: qcom-geni-serial: use of_device_id data tty: serial: qcom-geni-serial: stop operations in progress at shutdown soc: qcom-geni-se: add more symbol definitions tty: serial: qcom-geni-serial: add support for serial engine DMA drivers/tty/serial/qcom_geni_serial.c | 628 +++++++++++++++++--------- include/linux/qcom-geni-se.h | 3 + 2 files changed, 415 insertions(+), 216 deletions(-) -- 2.37.2
