diff options
Diffstat (limited to 'drivers/tty/serial/amba-pl011.c')
| -rw-r--r-- | drivers/tty/serial/amba-pl011.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index 4b28134d596a..2296bb0f9578 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -16,11 +16,6 @@ * and hooked into this driver. */ - -#if defined(CONFIG_SERIAL_AMBA_PL011_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) -#define SUPPORT_SYSRQ -#endif - #include <linux/module.h> #include <linux/ioport.h> #include <linux/init.h> @@ -1452,8 +1447,6 @@ static void pl011_modem_status(struct uart_amba_port *uap) static void check_apply_cts_event_workaround(struct uart_amba_port *uap) { - unsigned int dummy_read; - if (!uap->vendor->cts_event_workaround) return; @@ -1465,8 +1458,8 @@ static void check_apply_cts_event_workaround(struct uart_amba_port *uap) * single apb access will incur 2 pclk(133.12Mhz) delay, * so add 2 dummy reads */ - dummy_read = pl011_read(uap, REG_ICR); - dummy_read = pl011_read(uap, REG_ICR); + pl011_read(uap, REG_ICR); + pl011_read(uap, REG_ICR); } static irqreturn_t pl011_int(int irq, void *dev_id) @@ -2579,6 +2572,7 @@ static int pl011_setup_port(struct device *dev, struct uart_amba_port *uap, uap->port.mapbase = mmiobase->start; uap->port.membase = base; uap->port.fifosize = uap->fifosize; + uap->port.has_sysrq = IS_ENABLED(CONFIG_SERIAL_AMBA_PL011_CONSOLE); uap->port.flags = UPF_BOOT_AUTOCONF; uap->port.line = index; @@ -2769,6 +2763,7 @@ static struct platform_driver arm_sbsa_uart_platform_driver = { .remove = sbsa_uart_remove, .driver = { .name = "sbsa-uart", + .pm = &pl011_dev_pm_ops, .of_match_table = of_match_ptr(sbsa_uart_of_match), .acpi_match_table = ACPI_PTR(sbsa_uart_acpi_match), .suppress_bind_attrs = IS_BUILTIN(CONFIG_SERIAL_AMBA_PL011), |