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Subject[PATCH 4/8] serial: imx: use dev_pm_ops
Date
This is a simple reorganization to start using
struct dev_pm_ops instead of assigning .suspend
and .resume callbacks in platform driver.
The change allows further code to be added,
for example, runtime_pm.

Cc: Fabio Stevam <festevam@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: linux-serial@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
---
drivers/tty/serial/imx.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 70802be..a03855d 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -39,6 +39,7 @@
#include <linux/of_device.h>
#include <linux/io.h>
#include <linux/dma-mapping.h>
+#include <linux/pm.h>

#include <asm/irq.h>
#include <linux/platform_data/serial-imx.h>
@@ -1821,9 +1822,9 @@ static void serial_imx_enable_wakeup(struct imx_port *sport, bool on)
writel(val, sport->port.membase + UCR1);
}

-static int serial_imx_suspend(struct platform_device *dev, pm_message_t state)
+static int serial_imx_suspend(struct device *dev)
{
- struct imx_port *sport = platform_get_drvdata(dev);
+ struct imx_port *sport = dev_get_drvdata(dev);

/* enable wakeup from i.MX UART */
serial_imx_enable_wakeup(sport, true);
@@ -1833,9 +1834,9 @@ static int serial_imx_suspend(struct platform_device *dev, pm_message_t state)
return 0;
}

-static int serial_imx_resume(struct platform_device *dev)
+static int serial_imx_resume(struct device *dev)
{
- struct imx_port *sport = platform_get_drvdata(dev);
+ struct imx_port *sport = dev_get_drvdata(dev);

/* disable wakeup from i.MX UART */
serial_imx_enable_wakeup(sport, false);
@@ -1996,15 +1997,18 @@ static int serial_imx_remove(struct platform_device *pdev)
return uart_remove_one_port(&imx_reg, &sport->port);
}

+static const struct dev_pm_ops serial_imx_dev_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(serial_imx_suspend, serial_imx_resume)
+};
+
static struct platform_driver serial_imx_driver = {
.probe = serial_imx_probe,
.remove = serial_imx_remove,

- .suspend = serial_imx_suspend,
- .resume = serial_imx_resume,
.id_table = imx_uart_devtype,
.driver = {
.name = "imx-uart",
+ .pm = &serial_imx_dev_pm_ops,
.of_match_table = imx_uart_dt_ids,
},
};
--
2.5.0


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