diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c index cdc80e8c2d8a..119aeb658c81 100644 --- a/drivers/usb/misc/usb251xb.c +++ b/drivers/usb/misc/usb251xb.c @@ -374,18 +374,31 @@ out_err: } #ifdef CONFIG_OF +static void usb251xb_get_ports_field(struct usb251xb *hub, + const char *prop_name, u8 port_cnt, u8 *fld) +{ + struct device *dev = hub->dev; + struct property *prop; + const __be32 *p; + u32 port; + + of_property_for_each_u32(dev->of_node, prop_name, prop, p, port) { + if ((port >= 1) && (port <= port_cnt)) + *fld |= BIT(port); + else + dev_warn(dev, "port %u doesn't exist\n", port); + } +} + static int usb251xb_get_ofdata(struct usb251xb *hub, struct usb251xb_data *data) { struct device *dev = hub->dev; struct device_node *np = dev->of_node; - int len, err, i; - u32 port, property_u32 = 0; - const u32 *cproperty_u32; + int len, err; + u32 property_u32 = 0; const char *cproperty_char; char str[USB251XB_STRING_BUFSIZE / 2]; - struct property *prop; - const __be32 *p; if (!np) { dev_err(dev, "failed to get ofdata\n"); @@ -487,46 +500,16 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, hub->conf_data3 |= BIT(0); hub->non_rem_dev = USB251XB_DEF_NON_REMOVABLE_DEVICES; - cproperty_u32 = of_get_property(np, "non-removable-ports", &len); - if (cproperty_u32 && (len / sizeof(u32)) > 0) { - for (i = 0; i < len / sizeof(u32); i++) { - u32 port = be32_to_cpu(cproperty_u32[i]); - - if ((port >= 1) && (port <= data->port_cnt)) - hub->non_rem_dev |= BIT(port); - else - dev_warn(dev, "NRD port %u doesn't exist\n", - port); - } - } + usb251xb_get_ports_field(hub, "non-removable-ports", data->port_cnt, + &hub->non_rem_dev); hub->port_disable_sp = USB251XB_DEF_PORT_DISABLE_SELF; - cproperty_u32 = of_get_property(np, "sp-disabled-ports", &len); - if (cproperty_u32 && (len / sizeof(u32)) > 0) { - for (i = 0; i < len / sizeof(u32); i++) { - u32 port = be32_to_cpu(cproperty_u32[i]); - - if ((port >= 1) && (port <= data->port_cnt)) - hub->port_disable_sp |= BIT(port); - else - dev_warn(dev, "PDS port %u doesn't exist\n", - port); - } - } + usb251xb_get_ports_field(hub, "sp-disabled-ports", data->port_cnt, + &hub->port_disable_sp); hub->port_disable_bp = USB251XB_DEF_PORT_DISABLE_BUS; - cproperty_u32 = of_get_property(np, "bp-disabled-ports", &len); - if (cproperty_u32 && (len / sizeof(u32)) > 0) { - for (i = 0; i < len / sizeof(u32); i++) { - u32 port = be32_to_cpu(cproperty_u32[i]); - - if ((port >= 1) && (port <= data->port_cnt)) - hub->port_disable_bp |= BIT(port); - else - dev_warn(dev, "PDB port %u doesn't exist\n", - port); - } - } + usb251xb_get_ports_field(hub, "bp-disabled-ports", data->port_cnt, + &hub->port_disable_bp); hub->max_power_sp = USB251XB_DEF_MAX_POWER_SELF; if (!of_property_read_u32(np, "sp-max-total-current-microamp", @@ -589,10 +572,8 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, * register controls the USB DP/DM signal swapping for each port. */ hub->port_swap = USB251XB_DEF_PORT_SWAP; - of_property_for_each_u32(np, "swap-dx-lanes", prop, p, port) { - if (port <= data->port_cnt) - hub->port_swap |= BIT(port); - } + usb251xb_get_ports_field(hub, "swap-dx-lanes", data->port_cnt, + &hub->port_swap); /* The following parameters are currently not exposed to devicetree, but * may be as soon as needed.