diff options
author | Colin Ian King <colin.king@canonical.com> | 2015-01-19 13:32:58 +0000 |
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committer | Johan Hovold <johan@kernel.org> | 2015-01-19 15:58:16 +0100 |
commit | 3e264ffc831e70c4a3ecc8c2eeb5bfbc1c8a30d3 (patch) | |
tree | 9de8c12e3a14e63bae8cf52b6ea13bda4d49026a /drivers/usb/serial/mos7840.c | |
parent | 46dc0fc4befac07e71621d122a72194d2ae61c36 (diff) | |
download | linux-3e264ffc831e70c4a3ecc8c2eeb5bfbc1c8a30d3.tar.bz2 |
USB: mos7840: remove unused code
There is old, unused code that is #defined out by the use of NOTMOS7840
and NOTMCS7840 - these are not defined anywhere.
If NOTMOS7840 is defined then the code will break on null pointer
dereferences on mos7840_port. So the code is currently unused, and
broken anyway, so why not just remove it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb/serial/mos7840.c')
-rw-r--r-- | drivers/usb/serial/mos7840.c | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 220b4be89641..e4473a9109cf 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -1309,35 +1309,6 @@ static int mos7840_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *current_position = data; unsigned char *data1; -#ifdef NOTMOS7840 - Data = 0x00; - status = mos7840_get_uart_reg(port, LINE_CONTROL_REGISTER, &Data); - mos7840_port->shadowLCR = Data; - dev_dbg(&port->dev, "%s: LINE_CONTROL_REGISTER is %x\n", __func__, Data); - dev_dbg(&port->dev, "%s: mos7840_port->shadowLCR is %x\n", __func__, mos7840_port->shadowLCR); - - /* Data = 0x03; */ - /* status = mos7840_set_uart_reg(port,LINE_CONTROL_REGISTER,Data); */ - /* mos7840_port->shadowLCR=Data;//Need to add later */ - - Data |= SERIAL_LCR_DLAB; /* data latch enable in LCR 0x80 */ - status = mos7840_set_uart_reg(port, LINE_CONTROL_REGISTER, Data); - - /* Data = 0x0c; */ - /* status = mos7840_set_uart_reg(port,DIVISOR_LATCH_LSB,Data); */ - Data = 0x00; - status = mos7840_get_uart_reg(port, DIVISOR_LATCH_LSB, &Data); - dev_dbg(&port->dev, "%s: DLL value is %x\n", __func__, Data); - - Data = 0x0; - status = mos7840_get_uart_reg(port, DIVISOR_LATCH_MSB, &Data); - dev_dbg(&port->dev, "%s: DLM value is %x\n", __func__, Data); - - Data = Data & ~SERIAL_LCR_DLAB; - dev_dbg(&port->dev, "%s: mos7840_port->shadowLCR is %x\n", __func__, mos7840_port->shadowLCR); - status = mos7840_set_uart_reg(port, LINE_CONTROL_REGISTER, Data); -#endif - if (mos7840_port_paranoia_check(port, __func__)) return -1; @@ -1614,37 +1585,6 @@ static int mos7840_calc_baud_rate_divisor(struct usb_serial_port *port, *clk_sel_val = 0x70; } return 0; - -#ifdef NOTMCS7840 - - for (i = 0; i < ARRAY_SIZE(mos7840_divisor_table); i++) { - if (mos7840_divisor_table[i].BaudRate == baudrate) { - *divisor = mos7840_divisor_table[i].Divisor; - return 0; - } - } - - /* After trying for all the standard baud rates * - * Try calculating the divisor for this baud rate */ - - if (baudrate > 75 && baudrate < 230400) { - /* get the divisor */ - custom = (__u16) (230400L / baudrate); - - /* Check for round off */ - round1 = (__u16) (2304000L / baudrate); - round = (__u16) (round1 - (custom * 10)); - if (round > 4) - custom++; - *divisor = custom; - - dev_dbg(&port->dev, " Baud %d = %d\n", baudrate, custom); - return 0; - } - - dev_dbg(&port->dev, "%s", " Baud calculation Failed...\n"); - return -1; -#endif } /***************************************************************************** |