It contains improved version of the old v3 patchset "[PATCH v3] serial: mxs-auart: gpios as modem signals (dirty)" v3 -> v4 changelog: [PATCH 1/4] serial: mxs-auart: clean get_mctrl and set_mctrl * renamed from "serial: mxs-auart: ctrl removed from mxs_auart_port" * mxs_auart_get_mctrl() read back RTS line. It is removed too. [PATCH 2/4] serial: mxs-auart: use mctrl_gpio helpers for handling modem signals * RTS_AT_AUART() and CTS_AT_AUART() macro defined * DMA engine disabled if RTS or CTS is GPIO line * warn if fsl,uart-has-rtscts and RTS/CTS via GPIO are mixed * CTSEN can't be enabled for hardware flow control block if CTS is defined as GPIO line * RTSEN can be enabled for hardware flow control block even if RTS is defined as GPIO line. RTS pin depends on pinctrl configuration which selects RTS output from hardware flow control block or GPIO line. * mxs_auart_settermios(): RTS_AT_AUART() and CTS_AT_AUART() used * mxs_auart_irq_handle(): CTS_AT_AUART() used * mxs_auart_init_gpios() returns true(success)/false(failure) * dev_err() message fixed in mxs_auart_probe() [PATCH 3/4] serial: mxs-auart: add interrupts for modem control lines * rebased [PATCH 4/4] serial: mxs-auart: enable PPS support * coding style: braces in both branches of condition v2 -> v3 changelog: * own patches reordered to apply mainline * patch "serial: mxs-auart: add sysrq support" removed from the patchset and resent as independent new [PATCH 1/4] serial: mxs-auart: ctrl removed from mxs_auart_port * the ctrl variable duplicated mctrl, member of uart_port structure in serial_core.h * the code duplicated uart_update_mctrl() and uart_tiocmget() in serial_core.c * mxs_auart_get_mctrl() reads back RTS line. It could be removed too but not sure. [PATCH 2/4] serial: mxs-auart: use mctrl_gpio helpers for handling modem signals * mctrl_gpio_free() removed to simplify: mctrl_gpio_free() is not necessary in mxs_auart_probe() and mxs_auart_remove() because mctrl_gpio_init() does all allocations with devm_* functions. (see Documentation/serial/driver since kernel 3.16) * DMA on HW flow control comment updated, still not sure about the comment * mxs_auart_modem_status() removed from mxs_auart_get_mctrl(): mctrl_gpio_get() does not clear gpio interrupt pendings like 8250_core.c does with MSR. * mxs_auart_modem_status() moved to [3/4] If enable_ms() is not called, uart_handle_cts_change() shouldn't be called. [PATCH 3/4] serial: mxs-auart: add interrupts for modem control lines * introduces mctrl_prev instead of removed ctrl * mxs_auart_modem_status() moved from [3/4] * mxs_auart_modem_status() interrupt_enabled meant s->ms_irq_enabled [PATCH 4/4] serial: mxs-auart: enable PPS support * no changes Janusz Uzycki (4): serial: mxs-auart: clean get_mctrl and set_mctrl serial: mxs-auart: use mctrl_gpio helpers for handling modem signals serial: mxs-auart: add interrupts for modem control lines serial: mxs-auart: enable PPS support .../devicetree/bindings/serial/fsl-mxs-auart.txt | 10 +- drivers/tty/serial/Kconfig | 1 + drivers/tty/serial/mxs-auart.c | 237 +++++++++++++++++++-- 3 files changed, 233 insertions(+), 15 deletions(-) -- 1.7.11.3 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
