From: Heikki Krogerus <heikki.kroge...@linux.intel.com>
It should not be used together with Auto Flow Control, and
Auto Flow Control is always enabled on Baytrail.
Signed-off-by: Heikki Krogerus <heikki.kroge...@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
(cherry picked from commit 716e115cd7f75e3ab717f467432fd4b8cd23ee2c)
Signed-off-by: Ng, Wei Tee <wei.tee...@intel.com>
---
drivers/tty/serial/8250/8250_pci.c | 13 -------------
1 file changed, 13 deletions(-)
diff --git a/drivers/tty/serial/8250/8250_pci.c
b/drivers/tty/serial/8250/8250_pci.c
index 0754db6..eb9bd91 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1333,9 +1333,6 @@ ce4100_serial_setup(struct serial_private *priv,
#define BYT_PRV_CLK_N_VAL_SHIFT 16
#define BYT_PRV_CLK_UPDATE (1 << 31)
-#define BYT_GENERAL_REG 0x808
-#define BYT_GENERAL_DIS_RTS_N_OVERRIDE (1 << 3)
-
#define BYT_TX_OVF_INT 0x820
#define BYT_TX_OVF_INT_MASK (1 << 1)
@@ -1369,16 +1366,6 @@ byt_set_termios(struct uart_port *p, struct ktermios
*termios,
reg |= BYT_PRV_CLK_EN | BYT_PRV_CLK_UPDATE;
writel(reg, p->membase + BYT_PRV_CLK);
- /*
- * If auto-handshake mechanism is not enabled,
- * disable rts_n override
- */
- reg = readl(p->membase + BYT_GENERAL_REG);
- reg &= ~BYT_GENERAL_DIS_RTS_N_OVERRIDE;
- if (termios->c_cflag & CRTSCTS)
- reg |= BYT_GENERAL_DIS_RTS_N_OVERRIDE;
- writel(reg, p->membase + BYT_GENERAL_REG);
-
serial8250_do_set_termios(p, termios, old);
}
--
1.7.9.5
--
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