lkml.org 
[lkml]   [2022]   [Jun]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v3 1/4] tty: serial: atmel: stop using legacy pm ops
Date
Stop using legacy PM ops and switch using dev_pm_ops. Along with
it #ifdef CONFIG_PM are removed and __maybe_unused and pm_ptr() used
instead. Coding style recommends (at chapter Conditional Compilation)
to avoid using preprocessor conditional and use __maybe_unused
instead.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: Richard Genoud <richard.genoud@gmail.com>
---
drivers/tty/serial/atmel_serial.c | 28 +++++++++++-----------------
1 file changed, 11 insertions(+), 17 deletions(-)

diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index 74dd1d3ac46f..c618d7e93058 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -166,7 +166,6 @@ struct atmel_uart_port {
unsigned int fidi_min;
unsigned int fidi_max;

-#ifdef CONFIG_PM
struct {
u32 cr;
u32 mr;
@@ -177,7 +176,6 @@ struct atmel_uart_port {
u32 fmr;
u32 fimr;
} cache;
-#endif

int (*prepare_rx)(struct uart_port *port);
int (*prepare_tx)(struct uart_port *port);
@@ -2718,7 +2716,6 @@ static struct uart_driver atmel_uart = {
.cons = ATMEL_CONSOLE_DEVICE,
};

-#ifdef CONFIG_PM
static bool atmel_serial_clk_will_stop(void)
{
#ifdef CONFIG_ARCH_AT91
@@ -2728,10 +2725,9 @@ static bool atmel_serial_clk_will_stop(void)
#endif
}

-static int atmel_serial_suspend(struct platform_device *pdev,
- pm_message_t state)
+static int __maybe_unused atmel_serial_suspend(struct device *dev)
{
- struct uart_port *port = platform_get_drvdata(pdev);
+ struct uart_port *port = dev_get_drvdata(dev);
struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);

if (uart_console(port) && console_suspend_enabled) {
@@ -2756,14 +2752,14 @@ static int atmel_serial_suspend(struct platform_device *pdev,
}

/* we can not wake up if we're running on slow clock */
- atmel_port->may_wakeup = device_may_wakeup(&pdev->dev);
+ atmel_port->may_wakeup = device_may_wakeup(dev);
if (atmel_serial_clk_will_stop()) {
unsigned long flags;

spin_lock_irqsave(&atmel_port->lock_suspended, flags);
atmel_port->suspended = true;
spin_unlock_irqrestore(&atmel_port->lock_suspended, flags);
- device_set_wakeup_enable(&pdev->dev, 0);
+ device_set_wakeup_enable(dev, 0);
}

uart_suspend_port(&atmel_uart, port);
@@ -2771,9 +2767,9 @@ static int atmel_serial_suspend(struct platform_device *pdev,
return 0;
}

-static int atmel_serial_resume(struct platform_device *pdev)
+static int __maybe_unused atmel_serial_resume(struct device *dev)
{
- struct uart_port *port = platform_get_drvdata(pdev);
+ struct uart_port *port = dev_get_drvdata(dev);
struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
unsigned long flags;

@@ -2808,14 +2804,10 @@ static int atmel_serial_resume(struct platform_device *pdev)
spin_unlock_irqrestore(&atmel_port->lock_suspended, flags);

uart_resume_port(&atmel_uart, port);
- device_set_wakeup_enable(&pdev->dev, atmel_port->may_wakeup);
+ device_set_wakeup_enable(dev, atmel_port->may_wakeup);

return 0;
}
-#else
-#define atmel_serial_suspend NULL
-#define atmel_serial_resume NULL
-#endif

static void atmel_serial_probe_fifos(struct atmel_uart_port *atmel_port,
struct platform_device *pdev)
@@ -3019,14 +3011,16 @@ static int atmel_serial_remove(struct platform_device *pdev)
return ret;
}

+static SIMPLE_DEV_PM_OPS(atmel_serial_pm_ops, atmel_serial_suspend,
+ atmel_serial_resume);
+
static struct platform_driver atmel_serial_driver = {
.probe = atmel_serial_probe,
.remove = atmel_serial_remove,
- .suspend = atmel_serial_suspend,
- .resume = atmel_serial_resume,
.driver = {
.name = "atmel_usart_serial",
.of_match_table = of_match_ptr(atmel_serial_dt_ids),
+ .pm = pm_ptr(&atmel_serial_pm_ops),
},
};

--
2.34.1
\
 
 \ /
  Last update: 2022-06-16 16:00    [W:0.055 / U:0.024 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site