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Commit 750100a4 authored by Javier Martinez Canillas's avatar Javier Martinez Canillas Committed by Greg Kroah-Hartman
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auxdisplay: img-ascii-lcd: Fix module autoload 



If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.

Export the module alias information using the MODULE_DEVICE_TABLE() macro.

Before this patch:

$ modinfo drivers/auxdisplay/img-ascii-lcd.ko | grep alias
$

After this patch:

$ modinfo drivers/auxdisplay/img-ascii-lcd.ko | grep alias
alias:          of:N*T*Cmti,sead3-lcdC*
alias:          of:N*T*Cmti,sead3-lcd
alias:          of:N*T*Cmti,malta-lcdC*
alias:          of:N*T*Cmti,malta-lcd
alias:          of:N*T*Cimg,boston-lcdC*
alias:          of:N*T*Cimg,boston-lcd

Signed-off-by: default avatarJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e1f990c2

drivers/auxdisplay/img-ascii-lcd.c

+1 −0
Original line number Diff line number Diff line
@@ -220,6 +220,7 @@ static const struct of_device_id img_ascii_lcd_matches[] = { 
	{ .compatible = "mti,sead3-lcd", .data = &sead3_config },

	{ /* sentinel */ }

};

MODULE_DEVICE_TABLE(of, img_ascii_lcd_matches);



/**

 * img_ascii_lcd_scroll() - scroll the display by a character