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authorLinus Torvalds <torvalds@linux-foundation.org>2016-05-20 20:57:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-20 20:57:27 -0700
commite10abc629f38efd9b6936cf3612583cc846104d9 (patch)
tree58fb8f6dba5d085d4b0352137d18faf7cfa47a69 /drivers/tty/serial/sc16is7xx.c
parent0eff4589c36edd03d50b835d0768b2c2ef3f20bd (diff)
parentd20bb59af64667a16f2468b54fc0adb2f824a3b6 (diff)
Merge tag 'tty-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty and serial driver updates from Greg KH: "Here's the large TTY and Serial driver update for 4.7-rc1. A few new serial drivers are added here, and Peter has fixed a bunch of long-standing bugs in the tty layer and serial drivers as normal. Full details in the shortlog. All of these have been in linux-next for a while with no reported issues" * tag 'tty-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (88 commits) MAINTAINERS: 8250: remove website reference serial: core: Fix port mutex assert if lockdep disabled serial: 8250_dw: fix wrong logic in dw8250_check_lcr() tty: vt, finish looping on duplicate tty: vt, return error when con_startup fails QE-UART: add "fsl,t1040-ucc-uart" to of_device_id serial: mctrl_gpio: Drop support for out1-gpios and out2-gpios serial: 8250dw: Add device HID for future AMD UART controller Fix OpenSSH pty regression on close serial: mctrl_gpio: add IRQ locking serial: 8250: Integrate Fintek into 8250_base serial: mps2-uart: add support for early console serial: mps2-uart: add MPS2 UART driver dt-bindings: document the MPS2 UART bindings serial: sirf: Use generic uart-has-rtscts DT property serial: sirf: Introduce helper variable struct device_node *np serial: mxs-auart: Use generic uart-has-rtscts DT property serial: imx: Use generic uart-has-rtscts DT property doc: DT: Add Generic Serial Device Tree Bindings serial: 8250: of: Make tegra_serial_handle_break() static ...
Diffstat (limited to 'drivers/tty/serial/sc16is7xx.c')
-rw-r--r--drivers/tty/serial/sc16is7xx.c13
1 files changed, 3 insertions, 10 deletions
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index e6393619405a..f36e6df2fa90 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -666,7 +666,7 @@ static void sc16is7xx_port_irq(struct sc16is7xx_port *s, int portno)
struct uart_port *port = &s->p[portno].port;
do {
- unsigned int iir, msr, rxlen;
+ unsigned int iir, rxlen;
iir = sc16is7xx_port_read(port, SC16IS7XX_IIR_REG);
if (iir & SC16IS7XX_IIR_NO_INT_BIT)
@@ -683,12 +683,6 @@ static void sc16is7xx_port_irq(struct sc16is7xx_port *s, int portno)
if (rxlen)
sc16is7xx_handle_rx(port, rxlen, iir);
break;
-
- case SC16IS7XX_IIR_CTSRTS_SRC:
- msr = sc16is7xx_port_read(port, SC16IS7XX_MSR_REG);
- uart_handle_cts_change(port,
- !!(msr & SC16IS7XX_MSR_DCTS_BIT));
- break;
case SC16IS7XX_IIR_THRI_SRC:
sc16is7xx_handle_tx(port);
break;
@@ -1014,9 +1008,8 @@ static int sc16is7xx_startup(struct uart_port *port)
SC16IS7XX_EFCR_TXDISABLE_BIT,
0);
- /* Enable RX, TX, CTS change interrupts */
- val = SC16IS7XX_IER_RDI_BIT | SC16IS7XX_IER_THRI_BIT |
- SC16IS7XX_IER_CTSI_BIT;
+ /* Enable RX, TX interrupts */
+ val = SC16IS7XX_IER_RDI_BIT | SC16IS7XX_IER_THRI_BIT;
sc16is7xx_port_write(port, SC16IS7XX_IER_REG, val);
return 0;