diff --git a/debian/changelog b/debian/changelog index c0d74dc03..501b94252 100644 --- a/debian/changelog +++ b/debian/changelog @@ -417,6 +417,7 @@ linux (4.9.30-1) UNRELEASED; urgency=medium * btrfs: warn about RAID5/6 being experimental at mount time (Closes: #863290) * [x86] pinctrl: cherryview: Add a quirk to make Acer Chromebook keyboard work again (Closes: #862723) + * [arm64] serial: pl011: add console matching function (Closes: #861898) [ Salvatore Bonaccorso ] * tracing: Use strlcpy() instead of strcpy() in __trace_find_cmdline() diff --git a/debian/patches/features/arm64/serial-pl011-add-console-matching-function.patch b/debian/patches/features/arm64/serial-pl011-add-console-matching-function.patch new file mode 100644 index 000000000..712800a9a --- /dev/null +++ b/debian/patches/features/arm64/serial-pl011-add-console-matching-function.patch @@ -0,0 +1,99 @@ +From: Aleksey Makarov +Date: Tue, 4 Oct 2016 10:15:32 +0300 +Subject: serial: pl011: add console matching function +Origin: https://git.kernel.org/linus/10879ae5f12e9cab3c4e8e9504c1aaa8a033bde7 +Bug-Debian: https://bugs.debian.org/861898 + +This patch adds function pl011_console_match() that implements +method match of struct console. It allows to match consoles against +data specified in a string, for example taken from command line or +compiled by ACPI SPCR table handler. + +This patch was merged to tty-next but then reverted because of +conflict with + +commit 46e36683f433 ("serial: earlycon: Extend earlycon command line option to support 64-bit addresses") + +Now it is fixed. + +Signed-off-by: Aleksey Makarov +Reviewed-by: Peter Hurley +Acked-by: Russell King +Tested-by: Christopher Covington +Signed-off-by: Greg Kroah-Hartman +--- + drivers/tty/serial/amba-pl011.c | 55 +++++++++++++++++++++++++++++++++++++++++ + 1 file changed, 55 insertions(+) + +diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c +index e2c33b9528d8..c00ab22afe9e 100644 +--- a/drivers/tty/serial/amba-pl011.c ++++ b/drivers/tty/serial/amba-pl011.c +@@ -2315,12 +2315,67 @@ static int __init pl011_console_setup(struct console *co, char *options) + return uart_set_options(&uap->port, co, baud, parity, bits, flow); + } + ++/** ++ * pl011_console_match - non-standard console matching ++ * @co: registering console ++ * @name: name from console command line ++ * @idx: index from console command line ++ * @options: ptr to option string from console command line ++ * ++ * Only attempts to match console command lines of the form: ++ * console=pl011,mmio|mmio32,[,] ++ * console=pl011,0x[,] ++ * This form is used to register an initial earlycon boot console and ++ * replace it with the amba_console at pl011 driver init. ++ * ++ * Performs console setup for a match (as required by interface) ++ * If no are specified, then assume the h/w is already setup. ++ * ++ * Returns 0 if console matches; otherwise non-zero to use default matching ++ */ ++static int __init pl011_console_match(struct console *co, char *name, int idx, ++ char *options) ++{ ++ unsigned char iotype; ++ resource_size_t addr; ++ int i; ++ ++ if (strcmp(name, "pl011") != 0) ++ return -ENODEV; ++ ++ if (uart_parse_earlycon(options, &iotype, &addr, &options)) ++ return -ENODEV; ++ ++ if (iotype != UPIO_MEM && iotype != UPIO_MEM32) ++ return -ENODEV; ++ ++ /* try to match the port specified on the command line */ ++ for (i = 0; i < ARRAY_SIZE(amba_ports); i++) { ++ struct uart_port *port; ++ ++ if (!amba_ports[i]) ++ continue; ++ ++ port = &amba_ports[i]->port; ++ ++ if (port->mapbase != addr) ++ continue; ++ ++ co->index = i; ++ port->cons = co; ++ return pl011_console_setup(co, options); ++ } ++ ++ return -ENODEV; ++} ++ + static struct uart_driver amba_reg; + static struct console amba_console = { + .name = "ttyAMA", + .write = pl011_console_write, + .device = uart_console_device, + .setup = pl011_console_setup, ++ .match = pl011_console_match, + .flags = CON_PRINTBUFFER, + .index = -1, + .data = &amba_reg, diff --git a/debian/patches/series b/debian/patches/series index 34648b8ef..227998e59 100644 --- a/debian/patches/series +++ b/debian/patches/series @@ -69,6 +69,7 @@ features/arm/ARM-dts-orion5x-lschl-More-consistent-naming-on-link.patch features/arm/ARM-orion5x-fix-Makefile-for-linkstation-lschl.dtb.patch # Miscellaneous bug fixes +features/arm64/serial-pl011-add-console-matching-function.patch bugfix/all/kbuild-use-nostdinc-in-compile-tests.patch bugfix/all/disable-some-marvell-phys.patch bugfix/all/fs-add-module_softdep-declarations-for-hard-coded-cr.patch