lcd: calculate line_length after lcd_ctrl_init()
authorStephen Warren <swarren@wwwdotorg.org>
Tue, 29 Jan 2013 16:37:38 +0000 (16:37 +0000)
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>
Wed, 20 Mar 2013 14:29:39 +0000 (15:29 +0100)
commit6d3307195d583b7590068299420db4b44c6df4bf
tree0902be421192247e67ba1acbb767f27698e7c106
parent3f397782ae6c6148f7fa12bbb62f309a4f5d897c
lcd: calculate line_length after lcd_ctrl_init()

When an LCD driver is actually driving a regular external display, e.g.
an HDMI monitor, the display resolution might not be known until the
display controller has initialized, i.e. during lcd_ctrl_init(). However,
lcd.c calculates lcd_line_length before calling this function, thus
relying on a hard-coded resolution in struct panel_info.

Instead, defer this calculation until after lcd_ctrl_init() has had the
chance to dynamically determine the resolution. This needs to happen
before lcd_clear(), since the value is used there.

grep indicates that no code outside lcd.c uses this lcd_line_length; in
particular, no lcd_ctrl_init() implementations read it.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
common/lcd.c