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| author | Stephen Warren <swarren@wwwdotorg.org> | 2013-01-29 16:37:38 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2013-03-20 15:29:39 +0100 |
| commit | 6d3307195d583b7590068299420db4b44c6df4bf (patch) | |
| tree | 0902be421192247e67ba1acbb767f27698e7c106 /common/lcd.c | |
| parent | 3f397782ae6c6148f7fa12bbb62f309a4f5d897c (diff) | |
| download | u-boot-imx-6d3307195d583b7590068299420db4b44c6df4bf.zip u-boot-imx-6d3307195d583b7590068299420db4b44c6df4bf.tar.gz u-boot-imx-6d3307195d583b7590068299420db4b44c6df4bf.tar.bz2 | |
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>
Diffstat (limited to 'common/lcd.c')
| -rw-r--r-- | common/lcd.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/common/lcd.c b/common/lcd.c index 590bbb9..77914ad 100644 --- a/common/lcd.c +++ b/common/lcd.c @@ -386,8 +386,6 @@ int drv_lcd_init (void) lcd_base = (void *)(gd->fb_base); - lcd_get_size(&lcd_line_length); - lcd_init(lcd_base); /* LCD initialization */ /* Device initialization */ @@ -470,6 +468,8 @@ static int lcd_init(void *lcdbase) debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); lcd_ctrl_init(lcdbase); + lcd_get_size(&lcd_line_length); + lcd_line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; lcd_is_enabled = 1; lcd_clear(); lcd_enable (); |