summaryrefslogtreecommitdiff
path: root/drivers/tty
diff options
context:
space:
mode:
authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2021-11-22 15:35:12 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-12-20 16:55:22 +0100
commit46dacba8fea90d4b2562d45e8ca132f20a9ff5ce (patch)
tree36db59fbe379e79c45107224ca7f550e2bbff5c1 /drivers/tty
parentb4ccaf5aa2d795ee7f47a6eeb209f3de981e1929 (diff)
serial: 8250_pericom: Use serial_dl_write() instead of open coded
It's better to stick with standard API to write and read DL value when the hardware is compatible with it. In case any quirks are needed it may be easily added in one place rather than modifying code here and there. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20211122133512.8947-4-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/serial/8250/8250_pericom.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tty/serial/8250/8250_pericom.c b/drivers/tty/serial/8250/8250_pericom.c
index f0d026325f17..025b055363c3 100644
--- a/drivers/tty/serial/8250/8250_pericom.c
+++ b/drivers/tty/serial/8250/8250_pericom.c
@@ -70,11 +70,11 @@ static void pericom_do_set_divisor(struct uart_port *port, unsigned int baud,
/* Update delta due to possible divisor change */
delta = maxrate / divisor - baud;
if (abs(delta) < baud / 50) {
+ struct uart_8250_port *up = up_to_u8250p(port);
int lcr = serial_port_in(port, UART_LCR);
serial_port_out(port, UART_LCR, lcr | 0x80);
- serial_port_out(port, UART_DLL, divisor & 0xff);
- serial_port_out(port, UART_DLM, (divisor >> 8) & 0xff);
+ serial_dl_write(up, divisor);
serial_port_out(port, 2, 16 - scr);
serial_port_out(port, UART_LCR, lcr);
return;