lkml.org 
[lkml]   [2017]   [Sep]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 4/9 v2] usb: usb251xb: Add 5,6,7 ports boost settings
    Date
    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>
    ---
    drivers/usb/misc/usb251xb.c | 15 ++++++++++-----
    1 file changed, 10 insertions(+), 5 deletions(-)

    diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c
    index 3de0de93b..44fa7d084 100644
    --- 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
    @@ -149,7 +151,8 @@ 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;
    @@ -280,7 +283,8 @@ 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;
    @@ -517,7 +521,8 @@ 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;
    --
    2.12.0
    \
     
     \ /
      Last update: 2017-09-16 12:44    [W:5.142 / U:0.688 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site