watchdog: da9063: Do not use a global variable

Using the 'use_sw_pm' variable as global is not recommended
as it prevents multi instances of the driver to run.

Make it a member of the da9063 structure instead.

Signed-off-by: Fabio Estevam <[email protected]>
Reviewed-by: Guenter Roeck <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Guenter Roeck <[email protected]>
Signed-off-by: Wim Van Sebroeck <[email protected]>

Author: Fabio Estevam

drivers/watchdog/da9063_wdt.c

@@ -27,7 +27,6 @@
  *   others: timeout = 2048 ms * 2^(TWDSCALE-1).
  */
 static const unsigned int wdt_timeout[] = { 0, 2, 4, 8, 16, 32, 65, 131 };
-static bool use_sw_pm;
 
 #define DA9063_TWDSCALE_DISABLE		0
 #define DA9063_TWDSCALE_MIN		1
@@ -230,7 +229,7 @@ static int da9063_wdt_probe(struct platform_device *pdev)
 	if (!wdd)
 		return -ENOMEM;
 
-	use_sw_pm = device_property_present(dev, "dlg,use-sw-pm");
+	da9063->use_sw_pm = device_property_present(dev, "dlg,use-sw-pm");
 
 	wdd->info = &da9063_watchdog_info;
 	wdd->ops = &da9063_watchdog_ops;
@@ -267,8 +266,9 @@ static int da9063_wdt_probe(struct platform_device *pdev)
 static int __maybe_unused da9063_wdt_suspend(struct device *dev)
 {
 	struct watchdog_device *wdd = dev_get_drvdata(dev);
+	struct da9063 *da9063 = watchdog_get_drvdata(wdd);
 
-	if (!use_sw_pm)
+	if (!da9063->use_sw_pm)
 		return 0;
 
 	if (watchdog_active(wdd))
@@ -280,8 +280,9 @@ static int __maybe_unused da9063_wdt_suspend(struct device *dev)
 static int __maybe_unused da9063_wdt_resume(struct device *dev)
 {
 	struct watchdog_device *wdd = dev_get_drvdata(dev);
+	struct da9063 *da9063 = watchdog_get_drvdata(wdd);
 
-	if (!use_sw_pm)
+	if (!da9063->use_sw_pm)
 		return 0;
 
 	if (watchdog_active(wdd))

include/linux/mfd/da9063/core.h

@@ -78,6 +78,7 @@ struct da9063 {
 	enum da9063_type type;
 	unsigned char	variant_code;
 	unsigned int	flags;
+	bool use_sw_pm;
 
 	/* Control interface */
 	struct regmap	*regmap;