Commit 4ed466ae authored by Serge Semin's avatar Serge Semin Committed by Greg Kroah-Hartman

usb: usb251xb: Add max power/current dts property support

This parameters may be varied in accordance with hardware specifics.
So lets add the corresponding settings to the usb251xb driver dts
specification.
Signed-off-by: default avatarSerge Semin <fancer.lancer@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 287c2bb6
...@@ -499,6 +499,26 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, ...@@ -499,6 +499,26 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
} }
} }
hub->max_power_sp = USB251XB_DEF_MAX_POWER_SELF;
if (!of_property_read_u32(np, "sp-max-total-current-microamp",
&property_u32))
hub->max_power_sp = min_t(u8, property_u32 / 2000, 50);
hub->max_power_bp = USB251XB_DEF_MAX_POWER_BUS;
if (!of_property_read_u32(np, "bp-max-total-current-microamp",
&property_u32))
hub->max_power_bp = min_t(u8, property_u32 / 2000, 255);
hub->max_current_sp = USB251XB_DEF_MAX_CURRENT_SELF;
if (!of_property_read_u32(np, "sp-max-removable-current-microamp",
&property_u32))
hub->max_current_sp = min_t(u8, property_u32 / 2000, 50);
hub->max_current_bp = USB251XB_DEF_MAX_CURRENT_BUS;
if (!of_property_read_u32(np, "bp-max-removable-current-microamp",
&property_u32))
hub->max_current_bp = min_t(u8, property_u32 / 2000, 255);
hub->power_on_time = USB251XB_DEF_POWER_ON_TIME; hub->power_on_time = USB251XB_DEF_POWER_ON_TIME;
if (!of_property_read_u32(np, "power-on-time-ms", &property_u32)) if (!of_property_read_u32(np, "power-on-time-ms", &property_u32))
hub->power_on_time = min_t(u8, property_u32 / 2, 255); hub->power_on_time = min_t(u8, property_u32 / 2, 255);
...@@ -538,10 +558,6 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, ...@@ -538,10 +558,6 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
/* The following parameters are currently not exposed to devicetree, but /* The following parameters are currently not exposed to devicetree, but
* may be as soon as needed. * may be as soon as needed.
*/ */
hub->max_power_sp = USB251XB_DEF_MAX_POWER_SELF;
hub->max_power_bp = USB251XB_DEF_MAX_POWER_BUS;
hub->max_current_sp = USB251XB_DEF_MAX_CURRENT_SELF;
hub->max_current_bp = USB251XB_DEF_MAX_CURRENT_BUS;
hub->bat_charge_en = USB251XB_DEF_BATTERY_CHARGING_ENABLE; hub->bat_charge_en = USB251XB_DEF_BATTERY_CHARGING_ENABLE;
hub->boost_up = USB251XB_DEF_BOOST_UP; hub->boost_up = USB251XB_DEF_BOOST_UP;
hub->boost_57 = USB251XB_DEF_BOOST_57; hub->boost_57 = USB251XB_DEF_BOOST_57;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment