usb: usb251xb: Add 5,6,7 ports boost settings

USB electrical signaling drive strength boost bit is also supported
by USB2517 hub. Since it got three addition ports, the designers
needed to add one more register for initialization. It turned out
to be formerly reserved 0xF7. As before we just initialize it with
default zeros.

Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Acked-by: Richard Leitner <richard.leitner@skidata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c
index 202e931c697ae4211b91fc37ed1c568cc6c31e6f..530ef13b353d4782a1282cc5223d092af4001003 100644 (file)
--- a/drivers/usb/misc/usb251xb.c
+++ b/drivers/usb/misc/usb251xb.c
@@ -94,8 +94,10 @@
 
 #define USB251XB_ADDR_BOOST_UP 0xF6
 #define USB251XB_DEF_BOOST_UP  0x00
-#define USB251XB_ADDR_BOOST_X  0xF8
-#define USB251XB_DEF_BOOST_X   0x00
+#define USB251XB_ADDR_BOOST_57 0xF7
+#define USB251XB_DEF_BOOST_57  0x00
+#define USB251XB_ADDR_BOOST_14 0xF8
+#define USB251XB_DEF_BOOST_14  0x00
 
 #define USB251XB_ADDR_PORT_SWAP        0xFA
 #define USB251XB_DEF_PORT_SWAP 0x00
@@ -148,7 +150,8 @@ struct usb251xb {
        char serial[USB251XB_STRING_BUFSIZE];
        u8  bat_charge_en;
        u8  boost_up;
-       u8  boost_x;
+       u8  boost_57;
+       u8  boost_14;
        u8  port_swap;
        u8  port_map12;
        u8  port_map34;
@@ -279,7 +282,8 @@ static int usb251xb_connect(struct usb251xb *hub)
               USB251XB_STRING_BUFSIZE);
        i2c_wb[USB251XB_ADDR_BATTERY_CHARGING_ENABLE] = hub->bat_charge_en;
        i2c_wb[USB251XB_ADDR_BOOST_UP]          = hub->boost_up;
-       i2c_wb[USB251XB_ADDR_BOOST_X]           = hub->boost_x;
+       i2c_wb[USB251XB_ADDR_BOOST_57]          = hub->boost_57;
+       i2c_wb[USB251XB_ADDR_BOOST_14]          = hub->boost_14;
        i2c_wb[USB251XB_ADDR_PORT_SWAP]         = hub->port_swap;
        i2c_wb[USB251XB_ADDR_PORT_MAP_12]       = hub->port_map12;
        i2c_wb[USB251XB_ADDR_PORT_MAP_34]       = hub->port_map34;
@@ -519,7 +523,8 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
        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;
+       hub->boost_57 = USB251XB_DEF_BOOST_57;
+       hub->boost_14 = USB251XB_DEF_BOOST_14;
        hub->port_swap = USB251XB_DEF_PORT_SWAP;
        hub->port_map12 = USB251XB_DEF_PORT_MAP_12;
        hub->port_map34 = USB251XB_DEF_PORT_MAP_34;