This is a note to let you know that I've just added the patch titled MIPS: AR7: Ensure that serial ports are properly set up to the 4.13-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: mips-ar7-ensure-that-serial-ports-are-properly-set-up.patch and it can be found in the queue-4.13 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From b084116f8587b222a2c5ef6dcd846f40f24b9420 Mon Sep 17 00:00:00 2001 From: Oswald Buddenhagen <oswald.buddenhagen@xxxxxx> Date: Sun, 29 Oct 2017 16:27:20 +0100 Subject: MIPS: AR7: Ensure that serial ports are properly set up From: Oswald Buddenhagen <oswald.buddenhagen@xxxxxx> commit b084116f8587b222a2c5ef6dcd846f40f24b9420 upstream. Without UPF_FIXED_TYPE, the data from the PORT_AR7 uart_config entry is never copied, resulting in a dead port. Fixes: 154615d55459 ("MIPS: AR7: Use correct UART port type") Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@xxxxxx> [jonas.gorski: add Fixes tag] Signed-off-by: Jonas Gorski <jonas.gorski@xxxxxxxxx> Reviewed-by: Florian Fainelli <f.fainelli@xxxxxxxxx> Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@xxxxxxxxxxx> Cc: Nicolas Schichan <nschichan@xxxxxxxxxx> Cc: Oswald Buddenhagen <oswald.buddenhagen@xxxxxx> Cc: linux-mips@xxxxxxxxxxxxxx Cc: linux-serial@xxxxxxxxxxxxxxx Patchwork: https://patchwork.linux-mips.org/patch/17543/ Signed-off-by: James Hogan <jhogan@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/mips/ar7/platform.c | 1 + 1 file changed, 1 insertion(+) --- a/arch/mips/ar7/platform.c +++ b/arch/mips/ar7/platform.c @@ -575,6 +575,7 @@ static int __init ar7_register_uarts(voi uart_port.type = PORT_AR7; uart_port.uartclk = clk_get_rate(bus_clk) / 2; uart_port.iotype = UPIO_MEM32; + uart_port.flags = UPF_FIXED_TYPE; uart_port.regshift = 2; uart_port.line = 0; Patches currently in stable-queue which might be from oswald.buddenhagen@xxxxxx are queue-4.13/mips-ar7-ensure-that-serial-ports-are-properly-set-up.patch