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mx6sabresd: Avoid hang when HDMI cable is not connected

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Since commit d9b894603 (mx6sabresd: Add LVDS splash screen support) the
following hang happens if the HDMI cable is not connected or the 'panel'
variable is not set:

U-Boot 2013.10-rc2-12978-g47ac53d-dirty (Sep 11 2013 - 15:07:38)

CPU:   Freescale i.MX6Q rev1.2 at 792 MHz
Reset cause: POR
Board: MX6-SabreSD
DRAM:  1 GiB
MMC:   FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
...

Provide a check to 'dev->detect' in order to prevent the hang.

Reported-by: Pardeep Kumar Singla <b45784@freescale.com>
Suggested-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
This commit is contained in:
Fabio Estevam 2013-09-11 18:14:29 -03:00 committed by Stefano Babic
parent b4c927b33d
commit 1601ba4d1e
1 changed files with 1 additions and 1 deletions
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2
board/freescale/mx6sabresd/mx6sabresd.c
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@ -313,7 +313,7 @@ int board_video_skip(void)
if (!panel) {
for (i = 0; i < ARRAY_SIZE(displays); i++) {
struct display_info_t const *dev = displays+i;
if (dev->detect(dev)) {
if (dev->detect && dev->detect(dev)) {
panel = dev->mode.name;
printf("auto-detected panel %s\n", panel);
break;