From: Axel Haslam <ahaslam@xxxxxxxxxxxx>
The phy framework requests an optional "phy" regulator. If it does
not find one, it returns -EPROBE_DEFER. In the case of non-DT based boot
for the omap138-lcdk board, this would prevent the usb11 phy to probe
correctly and ohci would not enumerate.
By calling "regulator_has_full_constraints", An error would be returned
instead of DEFER for the "optional" regulator, and the probe of
the phy driver can continue normally without a regulator.
Signed-off-by: Axel Haslam <ahaslam@xxxxxxxxxxxx>
---
arch/arm/mach-davinci/board-omapl138-hawk.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c
index c5cb8d9..1dc6112 100644
--- a/arch/arm/mach-davinci/board-omapl138-hawk.c
+++ b/arch/arm/mach-davinci/board-omapl138-hawk.c
@@ -14,6 +14,7 @@
#include <linux/console.h>
#include <linux/gpio.h>
#include <linux/platform_data/gpio-davinci.h>
+#include <linux/regulator/machine.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -328,6 +329,7 @@ static __init void omapl138_hawk_init(void)
if (ret)
pr_warn("%s: dsp/rproc registration failed: %d\n",
__func__, ret);
+ regulator_has_full_constraints();
}
#ifdef CONFIG_SERIAL_8250_CONSOLE
--
2.7.1
--
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