tty: pl011: Add suspend resume support

Add the suspend and resume handlers for the versal uart platform driver.
Adds the suspend for sbsa driver.
Sbsa is a subset of the pl011 driver.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Link: https://lore.kernel.org/r/1575873048-14313-1-git-send-email-shubhrajyoti.datta@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index c5e9475..2fb832f 100644 (file)
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -2767,6 +2767,7 @@ 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),