kernel/linux.git/drivers/tty/serial/sccnxp.c, branch v4.9.331

serial: sccnxp: Fix error handling in sccnxp_probe()

2018-05-19T08:27:00+00:00

commit c91261437985d481c472639d4397931d77f5d4e9 upstream. sccnxp_probe() returns result of regulator_disable() that may lead to returning zero, while device is not properly initialized. Also the driver enables clocks, but it does not disable it. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Cc: Ben Hutchings Signed-off-by: Greg Kroah-Hartman

Fix serial console on SNI RM400 machines

2018-04-13T17:48:18+00:00

[ Upstream commit e279e6d98e0cf2c2fe008b3c29042b92f0e17b1d ] sccnxp driver doesn't get the correct uart clock rate, if CONFIG_HAVE_CLOCK is disabled. Correct usage of clk API to make it work with/without it. Fixes: 90efa75f7ab0 (serial: sccnxp: Using CLK API for getting UART clock) Suggested-by: Russell King - ARM Linux Signed-off-by: Thomas Bogendoerfer Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

tty: serial: drop owner assignment from platform_drivers

2014-10-20T14:21:45+00:00

A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang

serial: treewide: Remove empty implementations of enable_ms()

2014-07-10T00:29:38+00:00

Signed-off-by: Alexander Shiyan Signed-off-by: Greg Kroah-Hartman

serial: Fix IGNBRK handling

2014-06-19T20:04:52+00:00

If IGNBRK is set without either BRKINT or PARMRK set, some uart drivers send a 0x00 byte for BREAK without the TTYBREAK flag to the line discipline, when it should send either nothing or the TTYBREAK flag set. This happens because the read_status_mask masks out the BI condition, which uart_insert_char() then interprets as a normal 0x00 byte. SUS v3 is clear regarding the meaning of IGNBRK; Section 11.2.2, General Terminal Interface - Input Modes, states: "If IGNBRK is set, a break condition detected on input shall be ignored; that is, not put on the input queue and therefore not read by any process." Fix read_status_mask to include the BI bit if IGNBRK is set; the lsr status retains the BI bit if a BREAK is recv'd, which is subsequently ignored in uart_insert_char() when masked with the ignore_status_mask. Affected drivers: 8250 - all serial_txx9 mfd amba-pl010 amba-pl011 atmel_serial bfin_uart dz ip22zilog max310x mxs-auart netx-serial pnx8xxx_uart pxa sb1250-duart sccnxp serial_ks8695 sirfsoc_uart st-asc vr41xx_siu zs sunzilog fsl_lpuart sunsab ucc_uart bcm63xx_uart sunsu efm32-uart pmac_zilog mpsc msm_serial m32r_sio Unaffected drivers: omap-serial rp2 sa1100 imx icom Annotated for fixes: altera_uart mcf Drivers without break detection: 21285 xilinx-uartps altera_jtaguart apbuart arc-uart clps711x max3100 uartlite msm_serial_hs nwpserial lantiq vt8500_serial Unknown: samsung mpc52xx_uart bfin_sport_uart cpm_uart/core Fixes: Bugzilla #71651, '8250_core.c incorrectly handles IGNBRK flag' Reported-by: Ivan Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman

serial: sccnxp: Add IGNPAR flag handling

2014-05-28T19:41:58+00:00

This patch add IGNPAR flag handling for the driver. Signed-off-by: Alexander Shiyan Signed-off-by: Greg Kroah-Hartman

serial: sccnxp: Remove useless timer_pending() check

2014-05-28T19:41:58+00:00

sccnxp_timer() is triggered only by timer, so there are no need to check for timer_pending(). Signed-off-by: Alexander Shiyan Signed-off-by: Greg Kroah-Hartman

serial: sccnxp: missing uart_unregister_driver() on error in sccnxp_probe()

2013-09-26T22:44:45+00:00

Add the missing uart_unregister_driver() before return from sccnxp_probe() in the error handling case. Signed-off-by: Wei Yongjun Signed-off-by: Greg Kroah-Hartman

Revert "serial: sccnxp: Add DT support"

2013-08-02T07:25:19+00:00

This reverts commit 85c996907473e4ef824774b97b26499adf66521f. Alexander wishes to remove this patch as it is incorrect. Reported-by: Alexander Shiyan Signed-off-by: Greg Kroah-Hartman

serial: sccnxp: Add DT support

2013-08-01T01:09:35+00:00

Add DT support to the SCCNCP serial driver. Signed-off-by: Alexander Shiyan Signed-off-by: Greg Kroah-Hartman