Hi,
On Wednesday 10 July 2013 06:38 PM, Pali Rohár wrote:
* On RX-51 probing for acx565akm driver is later then for omapfb which cause
that omapfb probe fail and framebuffer is not working
* EPROBE_DEFER causing that kernel try to probe for omapfb later again which
fixing this problem
* Without this patch display on Nokia RX-51 (N900) phone not working
Signed-off-by: Pali Rohár <[email protected]>
---
drivers/video/omap2/omapfb/omapfb-main.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c
b/drivers/video/omap2/omapfb/omapfb-main.c
index 856917b..93e7c84 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -2419,6 +2419,15 @@ static int omapfb_probe(struct platform_device *pdev)
if (omapdss_is_initialized() == false)
return -EPROBE_DEFER;
+ dssdev = NULL;
+ for_each_dss_dev(dssdev) {
+ if (!dssdev->driver) {
+ dev_warn(&pdev->dev, "no driver for display: %s\n",
+ dssdev->name);
+ return -EPROBE_DEFER;
This will make omapfb probe defer till the time every panel has a
driver. It's possible that all the panel driver modules are never
interested by userspace. This will lead to the panels having drivers
also not work.
I think Tomi was working on this, it was something like making omapfb
defer only if the default display doesn't have a driver. We can wait for
his comment.
Archit
+ }
+ }
+
if (pdev->num_resources != 0) {
dev_err(&pdev->dev, "probed for an unknown device\n");
r = -ENODEV;
--
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