Hugo Villeneuve e635f65269 serial: sc16is7xx: convert from _raw_ to _noinc_ regmap functions for FIFO ... commit dbf4ab8218 upstream. The SC16IS7XX IC supports a burst mode to access the FIFOs where the initial register address is sent ($00), followed by all the FIFO data without having to resend the register address each time. In this mode, the IC doesn't increment the register address for each R/W byte. The regmap_raw_read() and regmap_raw_write() are functions which can perform IO over multiple registers. They are currently used to read/write from/to the FIFO, and although they operate correctly in this burst mode on the SPI bus, they would corrupt the regmap cache if it was not disabled manually. The reason is that when the R/W size is more than 1 byte, these functions assume that the register address is incremented and handle the cache accordingly. Convert FIFO R/W functions to use the regmap _noinc_ versions in order to remove the manual cache control which was a workaround when using the _raw_ versions. FIFO registers are properly declared as volatile so cache will not be used/updated for FIFO accesses. Fixes: dfeae619d7 ("serial: sc16is7xx") Cc: <stable@vger.kernel.org> Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com> Link: https://lore.kernel.org/r/20231211171353.2901416-6-hugo@hugovil.com Cc: Hugo Villeneuve <hvilleneuve@dimonoff.com> Signed-off-by: GONG, Ruiqi <gongruiqi1@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-04-10 16:19:30 +02:00
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hvc	hvc/xen: fix event channel handling for secondary consoles	2023-11-28 16:56:28 +00:00
ipwireless	…
serdev	…
serial	serial: sc16is7xx: convert from _raw_ to _noinc_ regmap functions for FIFO	2024-04-10 16:19:30 +02:00
vt	vt: fix unicode buffer corruption when deleting characters	2024-04-10 16:18:46 +02:00
Kconfig	…
Makefile	…
amiserial.c	…
ehv_bytechan.c	…
goldfish.c	…
mips_ejtag_fdc.c	…
moxa.c	…
moxa.h	…
mxser.c	…
n_gsm.c	tty: n_gsm: fix race condition in status line change on dead connections	2023-11-08 17:26:50 +01:00
n_hdlc.c	…
n_null.c	…
n_tty.c	tty: fix hang on tty device with no_room set	2023-08-03 10:22:29 +02:00
nozomi.c	…
pty.c	…
synclink_gt.c	…
sysrq.c	tty/sysrq: replace smp_processor_id() with get_cpu()	2023-11-28 16:56:27 +00:00
tty.h	tty: change tty_write_lock()'s ndelay parameter to bool	2024-01-25 14:52:51 -08:00
tty_audit.c	…
tty_baudrate.c	…
tty_buffer.c	…
tty_io.c	usb: cdc-acm: return correct error code on unsupported break	2024-01-25 14:52:52 -08:00
tty_ioctl.c	tty: allow TIOCSLCKTRMIOS with CAP_CHECKPOINT_RESTORE	2024-02-23 08:54:51 +01:00
tty_jobctrl.c	tty: tty_jobctrl: fix pid memleak in disassociate_ctty()	2023-11-20 11:08:25 +01:00
tty_ldisc.c	…
tty_ldsem.c	…
tty_mutex.c	…
tty_port.c	…
ttynull.c	…
vcc.c	tty: vcc: Add check for kstrdup() in vcc_probe()	2023-11-28 16:56:19 +00:00