linux-kernel - [PATCH] serial: uartps: Check if the device is a console

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Message-Id: <ad7c37027afef738fcda5d978a73cc4c595ef412.1544016036.git.michal.simek@xilinx.com>
Date:   Wed,  5 Dec 2018 14:20:38 +0100
From:   Michal Simek <michal.simek@...inx.com>
To:     linux-kernel@...r.kernel.org, monstr@...str.eu,
        michal.simek@...inx.com,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>
Cc:     Jiri Slaby <jslaby@...e.com>, linux-serial@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH] serial: uartps: Check if the device is a console

From: Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>

While checking for console_suspend_enabled also check if the
device is a console.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>
Signed-off-by: Michal Simek <michal.simek@...inx.com>
---

 drivers/tty/serial/xilinx_uartps.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 0140644391df..9cdc36be5b13 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -1255,7 +1255,7 @@ static int cdns_uart_suspend(struct device *device)
 
 	may_wake = device_may_wakeup(device);
 
-	if (console_suspend_enabled && may_wake) {
+	if (console_suspend_enabled && uart_console(port) && may_wake) {
 		unsigned long flags = 0;
 
 		spin_lock_irqsave(&port->lock, flags);
@@ -1293,7 +1293,7 @@ static int cdns_uart_resume(struct device *device)
 
 	may_wake = device_may_wakeup(device);
 
-	if (console_suspend_enabled && !may_wake) {
+	if (console_suspend_enabled && uart_console(port) && !may_wake) {
 		clk_enable(cdns_uart->pclk);
 		clk_enable(cdns_uart->uartclk);
 
-- 
1.9.1