linux-stable/drivers/tty
Ilpo Järvinen 387ea14f2a serial: 8250_lpss: Use 16B DMA burst with Elkhart Lake
commit 7090abd6ad upstream.

Configure DMA to use 16B burst size with Elkhart Lake. This makes the
bus use more efficient and works around an issue which occurs with the
previously used 1B.

The fix was initially developed by Srikanth Thokala and Aman Kumar.
This together with the previous config change is the cleaned up version
of the original fix.

Fixes: 0a9410b981 ("serial: 8250_lpss: Enable DMA on Intel Elkhart Lake")
Cc: <stable@vger.kernel.org> # serial: 8250_lpss: Configure DMA also w/o DMA filter
Reported-by: Wentong Wu <wentong.wu@intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221108121952.5497-4-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-26 09:27:48 +01:00
..
hvc
ipwireless
serdev
serial serial: 8250_lpss: Use 16B DMA burst with Elkhart Lake 2022-11-26 09:27:48 +01:00
vt vt: Clear selection before changing the font 2022-08-30 14:30:52 +02:00
amiserial.c tty: amiserial: Fix comment typo 2022-07-28 16:33:29 +02:00
ehv_bytechan.c
goldfish.c
Kconfig
Makefile
mips_ejtag_fdc.c serial: Convert SERIAL_XMIT_SIZE to UART_XMIT_SIZE 2022-06-27 14:41:31 +02:00
moxa.c
mxser.c
n_gsm.c tty: n_gsm: fix sleep-in-atomic-context bug in gsm_control_send 2022-11-26 09:27:27 +01:00
n_hdlc.c
n_null.c
n_tty.c
nozomi.c
pty.c tty: use new tty_insert_flip_string_and_push_buffer() in pty_write() 2022-07-08 15:16:28 +02:00
rpmsg_tty.c
synclink_gt.c
sysrq.c Merge branch 'rework/kthreads' into for-linus 2022-06-23 19:11:28 +02:00
tty.h tty: use new tty_insert_flip_string_and_push_buffer() in pty_write() 2022-07-08 15:16:28 +02:00
tty_audit.c
tty_baudrate.c
tty_buffer.c tty: Fix lookahead_buf crash with serdev 2022-08-30 14:31:53 +02:00
tty_io.c
tty_ioctl.c serial: Support for RS-485 multipoint addresses 2022-06-27 14:44:20 +02:00
tty_jobctrl.c
tty_ldisc.c
tty_ldsem.c
tty_mutex.c
tty_port.c
ttynull.c
vcc.c