diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-10-18 09:38:54 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-10-18 09:38:54 +0200 |
| commit | 412a5feba414127a6c69452dfad454086867011f (patch) | |
| tree | bf5934b41bff82f4ec69283d10fb1a799f42a641 /drivers/tty | |
| parent | dt-bindings: serial: uartlite: drop $ref for -bits property (diff) | |
| parent | Linux 5.15-rc6 (diff) | |
| download | linux-412a5feba414127a6c69452dfad454086867011f.tar.xz linux-412a5feba414127a6c69452dfad454086867011f.zip | |
Merge 5.15-rc6 into tty-next
We need the serial/tty fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/hvc/hvc_xen.c | 13 | ||||
| -rw-r--r-- | drivers/tty/serial/8250/Kconfig | 8 |
2 files changed, 11 insertions, 10 deletions
diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c index 8f143c09a169..f0bf01ea069a 100644 --- a/drivers/tty/hvc/hvc_xen.c +++ b/drivers/tty/hvc/hvc_xen.c @@ -618,10 +618,8 @@ static int __init xenboot_console_setup(struct console *console, char *string) { static struct xencons_info xenboot; - if (xen_initial_domain()) + if (xen_initial_domain() || !xen_pv_domain()) return 0; - if (!xen_pv_domain()) - return -ENODEV; return xencons_info_pv_init(&xenboot, 0); } @@ -632,17 +630,16 @@ static void xenboot_write_console(struct console *console, const char *string, unsigned int linelen, off = 0; const char *pos; + if (dom0_write_console(0, string, len) >= 0) + return; + if (!xen_pv_domain()) { xen_hvm_early_write(0, string, len); return; } - dom0_write_console(0, string, len); - - if (xen_initial_domain()) + if (domU_write_console(0, "(early) ", 8) < 0) return; - - domU_write_console(0, "(early) ", 8); while (off < len && NULL != (pos = strchr(string+off, '\n'))) { linelen = pos-string+off; if (off + linelen > len) diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig index 808268edd2e8..8cd11aa63ed5 100644 --- a/drivers/tty/serial/8250/Kconfig +++ b/drivers/tty/serial/8250/Kconfig @@ -361,9 +361,13 @@ config SERIAL_8250_BCM2835AUX If unsure, say N. config SERIAL_8250_FSL - bool + bool "Freescale 16550 UART support" if COMPILE_TEST && !(PPC || ARM || ARM64) depends on SERIAL_8250_CONSOLE - default PPC || ARM || ARM64 || COMPILE_TEST + default PPC || ARM || ARM64 + help + Selecting this option enables a workaround for a break-detection + erratum for Freescale 16550 UARTs in the 8250 driver. It also + enables support for ACPI enumeration. config SERIAL_8250_DW tristate "Support for Synopsys DesignWare 8250 quirks" |