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usb: dwc2: use dev_read_bool() instead of fdt_getprop()

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Use dev_read_bool() instead of fdt_getprop() to get the property
from DTS. And add a comment for "hnp-srp-disable" property to
fully describe its effect.

Signed-off-by: Meng Dongyang <daniel.meng@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
This commit is contained in:
Meng Dongyang 2017-06-28 19:22:43 +08:00 committed by Philipp Tomsich
parent 6424de9303
commit dd22bace7a
1 changed files with 6 additions and 10 deletions
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16
drivers/usb/host/dwc2.c
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@ -43,6 +43,10 @@ struct dwc2_priv {
struct dwc2_core_regs *regs; struct dwc2_core_regs *regs;
int root_hub_devnum; int root_hub_devnum;
bool ext_vbus; bool ext_vbus;
/*
* The hnp/srp capability must be disabled if the platform
* does't support hnp/srp. Otherwise the force mode can't work.
*/
bool hnp_srp_disable; bool hnp_srp_disable;
bool oc_disable; bool oc_disable;
}; };
@ -1239,7 +1243,6 @@ static int dwc2_submit_int_msg(struct udevice *dev, struct usb_device *udev,
static int dwc2_usb_ofdata_to_platdata(struct udevice *dev) static int dwc2_usb_ofdata_to_platdata(struct udevice *dev)
{ {
struct dwc2_priv *priv = dev_get_priv(dev); struct dwc2_priv *priv = dev_get_priv(dev);
const void *prop;
fdt_addr_t addr; fdt_addr_t addr;
addr = devfdt_get_addr(dev); addr = devfdt_get_addr(dev);
@ -1247,15 +1250,8 @@ static int dwc2_usb_ofdata_to_platdata(struct udevice *dev)
return -EINVAL; return -EINVAL;
priv->regs = (struct dwc2_core_regs *)addr; priv->regs = (struct dwc2_core_regs *)addr;
prop = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), priv->oc_disable = dev_read_bool(dev, "disable-over-current");
"disable-over-current", NULL); priv->hnp_srp_disable = dev_read_bool(dev, "hnp-srp-disable");
if (prop)
priv->oc_disable = true;
prop = fdt_getprop(gd->fdt_blob, dev_of_offset(dev),
"hnp-srp-disable", NULL);
if (prop)
priv->hnp_srp_disable = true;
return 0; return 0;
} }