From: Dmitry Shmidt <dimitrysh@xxxxxxxxxx>
This adds the ability to specify multiple DT overlay
configurations, which are predefined in the overlay_mgr entry,
at once via the boot arguments.
Example:
overlay_mgr.overlay_dt_entry=hardware_cfg_0,hardware_cfg_1,...
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Frank Rowand <frowand.list@xxxxxxxxx>
Cc: Dmitry Shmidt <dimitrysh@xxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Signed-off-by: Dmitry Shmidt <dimitrysh@xxxxxxxxxx>
[jstultz: reworded commit message]
Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx>
---
drivers/of/overlay_mgr.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/of/overlay_mgr.c b/drivers/of/overlay_mgr.c
index 5a082be..6b15f7c 100644
--- a/drivers/of/overlay_mgr.c
+++ b/drivers/of/overlay_mgr.c
@@ -112,12 +112,22 @@ static DEVICE_ATTR(current_overlay, 0644, current_overlay_show,
static int of_overlay_mgr_probe(struct platform_device *pdev)
{
+ char *cur_entry;
+ char *next_entry;
+
if (device_create_file(&pdev->dev, &dev_attr_current_overlay))
pr_err("overlay_mgr: fail to register apply entry\n");
if (!of_overlay_dt_entry)
return 0;
- of_overlay_mgr_apply_dt(&pdev->dev, of_overlay_dt_entry);
+ next_entry = of_overlay_dt_entry;
+ do {
+ cur_entry = next_entry;
+ next_entry = strchr(cur_entry, ',');
+ if (next_entry)
+ *next_entry++ = '\0';
+ of_overlay_mgr_apply_dt(&pdev->dev, cur_entry);
+ } while (next_entry);
return 0;
}
--
2.7.4
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