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tty: serial/8250: remove console dependency for mediatek
If the mediatek serial port driver is built-in, but serial console is disabled in Kconfig (e.g. when the serial driver itself is a loadable module), we get this build error: drivers/built-in.o: In function `early_mtk8250_setup': undefined reference to `early_serial8250_setup' To avoid that problem, this patch encloses the early_mtk8250_setup function in #ifdef CONFIG_SERIAL_8250_CONSOLE, the same symbol that guards the early_serial8250_setup function. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Eddie Huang <eddie.huang@mediatek.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -305,6 +305,7 @@ static struct platform_driver mtk8250_platform_driver = {
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};
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module_platform_driver(mtk8250_platform_driver);
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#ifdef CONFIG_SERIAL_8250_CONSOLE
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static int __init early_mtk8250_setup(struct earlycon_device *device,
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const char *options)
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{
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@ -317,6 +318,7 @@ static int __init early_mtk8250_setup(struct earlycon_device *device,
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}
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OF_EARLYCON_DECLARE(mtk8250, "mediatek,mt6577-uart", early_mtk8250_setup);
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#endif
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MODULE_AUTHOR("Matthias Brugger");
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MODULE_LICENSE("GPL");
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