The patch adapt the serial core/driver to take care of the case when "no_console_suspend"
is used in the bootargs. The patch will remove dependency to set od->flags to
"OMAP_DEVICE_NO_IDLE_ON_SUSPEND" in serial.c(non dt case) and omap_device.c(dt case).
Prepare and complete callbacks will ensure that clocks remain active for the console
uart when "no_console_suspend" is used in the bootargs.
Signed-off-by: Sourav Poddar <sourav.poddar@xxxxxx>
---
drivers/tty/serial/omap-serial.c | 20 ++++++++++++++++++++
1 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 08332f3..9ef80cf 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -1278,6 +1278,24 @@ static struct uart_driver serial_omap_reg = {
};
#ifdef CONFIG_PM_SLEEP
+static int serial_omap_prepare(struct device *dev)
+{
+ struct uart_omap_port *up = dev_get_drvdata(dev);
+
+ if (!console_suspend_enabled && uart_console(&up->port))
+ pm_runtime_disable(dev);
+
+ return 0;
+}
+
+static void serial_omap_complete(struct device *dev)
+{
+ struct uart_omap_port *up = dev_get_drvdata(dev);
+
+ if (!console_suspend_enabled && uart_console(&up->port))
+ pm_runtime_enable(dev);
+}
+
static int serial_omap_suspend(struct device *dev)
{
struct uart_omap_port *up = dev_get_drvdata(dev);
@@ -1632,6 +1650,8 @@ static const struct dev_pm_ops serial_omap_dev_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(serial_omap_suspend, serial_omap_resume)
SET_RUNTIME_PM_OPS(serial_omap_runtime_suspend,
serial_omap_runtime_resume, NULL)
+ .prepare = serial_omap_prepare,
+ .complete = serial_omap_complete,
};
#if defined(CONFIG_OF)
--
1.7.1
--
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