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Commit d43b54d2 authored by Scott Wood's avatar Scott Wood Committed by Greg Kroah-Hartman
Browse files

serial: Enable Freescale 16550 workaround on arm 



The same serial hardware is present on LS2080A which is arm64, and
LS1021A which is arm32, so don't limit the workaround to PPC.

Unlike PPC which uses arch/powerpc/kernel/legacy_serial.c, the ARM
targets use drivers/tty/serial/of_serial.c, so add the handle_irq
override check there as well.

Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 37f06799

drivers/tty/serial/8250/Kconfig

+2 −2
Original line number Diff line number Diff line
@@ -274,8 +274,8 @@ config SERIAL_8250_ACORN 


config SERIAL_8250_FSL

	bool

	depends on SERIAL_8250_CONSOLE && PPC_UDBG_16550

	default PPC

	depends on SERIAL_8250_CONSOLE

	default PPC || ARM || ARM64



config SERIAL_8250_DW

	tristate "Support for Synopsys DesignWare 8250 quirks"

drivers/tty/serial/of_serial.c

+5 −0
Original line number Diff line number Diff line
@@ -154,6 +154,11 @@ static int of_platform_serial_setup(struct platform_device *ofdev, 
		break;

	}



	if (IS_ENABLED(CONFIG_SERIAL_8250_FSL) &&

	    (of_device_is_compatible(np, "fsl,ns16550") ||

	     of_device_is_compatible(np, "fsl,16550-FIFO64")))

		port->handle_irq = fsl8250_handle_irq;



	return 0;

out:

	if (info->clk)