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usb: usb251xb: remove max_{power,current}_{sp,bp} properties 

Remove the max_{power,current}_{sp,bp} properties of the usb251xb driver
from devicetree. This is done to simplify the dt bindings as requested
by Rob Herring in https://lkml.org/lkml/2017/2/15/1283. If those
properties are ever needed by somebody they can be enabled again easily.

Signed-off-by: Richard Leitner <richard.leitner@skidata.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Richard Leitner 2017-03-06 09:24:20 +01:00 committed by Greg Kroah-Hartman
parent d595259fbb
commit cfa47afe77
2 changed files with 4 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
Documentation/devicetree/bindings/usb/usb251xb.txt
View File

@ -40,26 +40,6 @@ Optional properties :
device connected.
- sp-disabled-ports : Specifies the ports which will be self-power disabled
- bp-disabled-ports : Specifies the ports which will be bus-power disabled
- max-sp-power : Specifies the maximum current the hub consumes from an
upstream port when operating as self-powered hub including the power
consumption of a permanently attached peripheral if the hub is
configured as a compound device. The value is given in mA in a 0 - 500
range (default is 2).
- max-bp-power : Specifies the maximum current the hub consumes from an
upstream port when operating as bus-powered hub including the power
consumption of a permanently attached peripheral if the hub is
configured as a compound device. The value is given in mA in a 0 - 500
range (default is 100).
- max-sp-current : Specifies the maximum current the hub consumes from an
upstream port when operating as self-powered hub EXCLUDING the power
consumption of a permanently attached peripheral if the hub is
configured as a compound device. The value is given in mA in a 0 - 500
range (default is 2).
- max-bp-current : Specifies the maximum current the hub consumes from an
upstream port when operating as bus-powered hub EXCLUDING the power
consumption of a permanently attached peripheral if the hub is
configured as a compound device. The value is given in mA in a 0 - 500
range (default is 100).
- power-on-time : Specifies the time it takes from the time the host initiates
the power-on sequence to a port until the port has adequate power. The
value is given in ms in a 0 - 510 range (default is 100ms).

24
drivers/usb/misc/usb251xb.c
View File

@ -432,26 +432,6 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
}
}
hub->max_power_sp = USB251XB_DEF_MAX_POWER_SELF;
if (!of_property_read_u32(np, "max-sp-power", property_u32))
hub->max_power_sp = min_t(u8, be32_to_cpu(*property_u32) / 2,
250);
hub->max_power_bp = USB251XB_DEF_MAX_POWER_BUS;
if (!of_property_read_u32(np, "max-bp-power", property_u32))
hub->max_power_bp = min_t(u8, be32_to_cpu(*property_u32) / 2,
250);
hub->max_current_sp = USB251XB_DEF_MAX_CURRENT_SELF;
if (!of_property_read_u32(np, "max-sp-current", property_u32))
hub->max_current_sp = min_t(u8, be32_to_cpu(*property_u32) / 2,
250);
hub->max_current_bp = USB251XB_DEF_MAX_CURRENT_BUS;
if (!of_property_read_u32(np, "max-bp-current", property_u32))
hub->max_current_bp = min_t(u8, be32_to_cpu(*property_u32) / 2,
250);
hub->power_on_time = USB251XB_DEF_POWER_ON_TIME;
if (!of_property_read_u32(np, "power-on-time", property_u32))
hub->power_on_time = min_t(u8, be32_to_cpu(*property_u32) / 2,
@ -492,6 +472,10 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
/* The following parameters are currently not exposed to devicetree, but
* 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->boost_up = USB251XB_DEF_BOOST_UP;
hub->boost_x = USB251XB_DEF_BOOST_X;