Hello.
On 10/6/2014 4:59 AM, Yoshihiro Shimoda wrote:
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
---
arch/arm/boot/dts/r8a7790-lager.dts | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts
index 1698591..4badd0a 100644
--- a/arch/arm/boot/dts/r8a7790-lager.dts
+++ b/arch/arm/boot/dts/r8a7790-lager.dts
@@ -445,3 +445,8 @@
};
};
};
+
+&hsusb {
+ status = "okay";
+ renesas,enable-gpio = <&gpio5 18 GPIO_ACTIVE_LOW>;
It's certainly active-high.
Since the current code has the following, we have to set the active_low...
Exactly opposite conclusion follows from this code.
However, the code is unreadable, I think. So, I will modify the code.
There's no dire need, I think.
/* check GPIO determining if USB function should be enabled */
if (priv->dparam.enable_gpio) {
gpio_request_one(priv->dparam.enable_gpio, GPIOF_IN, NULL);
ret = !gpio_get_value(priv->dparam.enable_gpio);
gpio_free(priv->dparam.enable_gpio);
if (ret) {
'ret' is non-zero here if gpio_get_value() returned 0, so 0 means "host"
and 1 means "gadget", i.e. GPIO is active-high.
dev_warn(&pdev->dev,
"USB function not selected (GPIO %d)\n",
priv->dparam.enable_gpio);
ret = -ENOTSUPP;
goto probe_end_mod_exit;
}
}
Best regards,
Yoshihiro Shimoda
WBR, Sergei
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