Merge tag 'for-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:
 "New features:
   - axp20x_usb_power: report USB type

  Cleanups:
   - convert lots of drivers to use devm_power_supply_register()
   - convert lots of reset drivers to use devm_register_sys_off_handler()
   - constify device_type and power_supply_class
   - axp20x_usb_power: use correct property to report input current limit
   - mm8013: correct handling of "not charging" status register
   - core: fix charge_behaviour formatting
   - minor fixes cleanups"

* tag 'for-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (66 commits)
  power: supply: core: fix charge_behaviour formatting
  power: supply: core: ease special formatting implementations
  power: supply: mm8013: fix "not charging" detection
  power: supply: move power_supply_attr_groups definition back to sysfs
  power: supply: core: simplify power_supply_class_init
  power: supply: core: add power_supply_for_each_device()
  power: supply: core: make power_supply_class constant
  power: supply: bq2415x_charger: report online status
  power: supply: core: move power_supply_attr_group into #ifdef block
  power: supply: core: Fix power_supply_init_attrs() stub
  power: supply: bq27xxx: Report charge full state correctly
  power: reset: rmobile-reset: Make sysc_base2 local
  power: supply: core: constify the struct device_type usage
  power: supply: axp288_fuel_gauge: Deny ROCK Pi X
  power: reset: rmobile-reset: Map correct MMIO resource
  power: reset: xgene-reboot: Fix a NULL vs IS_ERR() test
  power: supply: axp288_fuel_gauge: Add STCK1A* Intel Compute Sticks to the deny-list
  power: reset: syscon-poweroff: Use devm_register_sys_off_handler(POWER_OFF)
  power: reset: syscon-poweroff: Move device data into a struct
  power: reset: restart-poweroff: Use devm_register_sys_off_handler(POWER_OFF)
  ...

Author: torvalds

drivers/power/reset/as3722-poweroff.c

@@ -11,29 +11,26 @@
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
+#include <linux/reboot.h>
 #include <linux/slab.h>
 
 struct as3722_poweroff {
 	struct device *dev;
 	struct as3722 *as3722;
 };
 
-static struct as3722_poweroff *as3722_pm_poweroff;
-
-static void as3722_pm_power_off(void)
+static int as3722_pm_power_off(struct sys_off_data *data)
 {
+	struct as3722_poweroff *as3722_pm_poweroff = data->cb_data;
 	int ret;
 
-	if (!as3722_pm_poweroff) {
-		pr_err("AS3722 poweroff is not initialised\n");
-		return;
-	}
-
 	ret = as3722_update_bits(as3722_pm_poweroff->as3722,
 		AS3722_RESET_CONTROL_REG, AS3722_POWER_OFF, AS3722_POWER_OFF);
 	if (ret < 0)
 		dev_err(as3722_pm_poweroff->dev,
 			"RESET_CONTROL_REG update failed, %d\n", ret);
+
+	return NOTIFY_DONE;
 }
 
 static int as3722_poweroff_probe(struct platform_device *pdev)
@@ -54,26 +51,21 @@ static int as3722_poweroff_probe(struct platform_device *pdev)
 
 	as3722_poweroff->as3722 = dev_get_drvdata(pdev->dev.parent);
 	as3722_poweroff->dev = &pdev->dev;
-	as3722_pm_poweroff = as3722_poweroff;
-	if (!pm_power_off)
-		pm_power_off = as3722_pm_power_off;
 
-	return 0;
-}
+	return devm_register_sys_off_handler(as3722_poweroff->dev,
+					     SYS_OFF_MODE_POWER_OFF,
+					     SYS_OFF_PRIO_DEFAULT,
+					     as3722_pm_power_off,
+					     as3722_poweroff);
 
-static void as3722_poweroff_remove(struct platform_device *pdev)
-{
-	if (pm_power_off == as3722_pm_power_off)
-		pm_power_off = NULL;
-	as3722_pm_poweroff = NULL;
+	return 0;
 }
 
 static struct platform_driver as3722_poweroff_driver = {
 	.driver = {
 		.name = "as3722-power-off",
 	},
 	.probe = as3722_poweroff_probe,
-	.remove_new = as3722_poweroff_remove,
 };
 
 module_platform_driver(as3722_poweroff_driver);

drivers/power/reset/atc260x-poweroff.c

@@ -16,13 +16,9 @@
 struct atc260x_pwrc {
 	struct device *dev;
 	struct regmap *regmap;
-	struct notifier_block restart_nb;
 	int (*do_poweroff)(const struct atc260x_pwrc *pwrc, bool restart);
 };
 
-/* Global variable needed only for pm_power_off */
-static struct atc260x_pwrc *atc260x_pwrc_data;
-
 static int atc2603c_do_poweroff(const struct atc260x_pwrc *pwrc, bool restart)
 {
 	int ret, deep_sleep = 0;
@@ -165,18 +161,20 @@ static int atc2609a_init(const struct atc260x_pwrc *pwrc)
 	return ret;
 }
 
-static void atc260x_pwrc_pm_handler(void)
+static int atc260x_pwrc_pm_handler(struct sys_off_data *data)
 {
-	atc260x_pwrc_data->do_poweroff(atc260x_pwrc_data, false);
+	struct atc260x_pwrc *pwrc = data->cb_data;
+
+	pwrc->do_poweroff(pwrc, false);
 
 	WARN_ONCE(1, "Unable to power off system\n");
+
+	return NOTIFY_DONE;
 }
 
-static int atc260x_pwrc_restart_handler(struct notifier_block *nb,
-					unsigned long mode, void *cmd)
+static int atc260x_pwrc_restart_handler(struct sys_off_data *data)
 {
-	struct atc260x_pwrc *pwrc = container_of(nb, struct atc260x_pwrc,
-						 restart_nb);
+	struct atc260x_pwrc *pwrc = data->cb_data;
 	pwrc->do_poweroff(pwrc, true);
 
 	return NOTIFY_DONE;
@@ -194,8 +192,6 @@ static int atc260x_pwrc_probe(struct platform_device *pdev)
 
 	priv->dev = &pdev->dev;
 	priv->regmap = atc260x->regmap;
-	priv->restart_nb.notifier_call = atc260x_pwrc_restart_handler;
-	priv->restart_nb.priority = 192;
 
 	switch (atc260x->ic_type) {
 	case ATC2603C:
@@ -216,38 +212,29 @@ static int atc260x_pwrc_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	platform_set_drvdata(pdev, priv);
-
-	if (!pm_power_off) {
-		atc260x_pwrc_data = priv;
-		pm_power_off = atc260x_pwrc_pm_handler;
-	} else {
-		dev_warn(priv->dev, "Poweroff callback already assigned\n");
-	}
+	ret = devm_register_sys_off_handler(priv->dev,
+					    SYS_OFF_MODE_POWER_OFF,
+					    SYS_OFF_PRIO_DEFAULT,
+					    atc260x_pwrc_pm_handler,
+					    priv);
+	if (ret)
+		dev_err(priv->dev, "failed to register power-off handler: %d\n",
+			ret);
 
-	ret = register_restart_handler(&priv->restart_nb);
+	ret = devm_register_sys_off_handler(priv->dev,
+					    SYS_OFF_MODE_RESTART,
+					    SYS_OFF_PRIO_HIGH,
+					    atc260x_pwrc_restart_handler,
+					    priv);
 	if (ret)
 		dev_err(priv->dev, "failed to register restart handler: %d\n",
 			ret);
 
 	return ret;
 }
 
-static void atc260x_pwrc_remove(struct platform_device *pdev)
-{
-	struct atc260x_pwrc *priv = platform_get_drvdata(pdev);
-
-	if (atc260x_pwrc_data == priv) {
-		pm_power_off = NULL;
-		atc260x_pwrc_data = NULL;
-	}
-
-	unregister_restart_handler(&priv->restart_nb);
-}
-
 static struct platform_driver atc260x_pwrc_driver = {
 	.probe = atc260x_pwrc_probe,
-	.remove_new = atc260x_pwrc_remove,
 	.driver = {
 		.name = "atc260x-pwrc",
 	},

drivers/power/reset/axxia-reset.c

@@ -26,11 +26,10 @@
 #define SC_EFUSE_INT_STATUS	0x180c
 #define   EFUSE_READ_DONE	(1<<31)
 
-static struct regmap *syscon;
-
-static int axxia_restart_handler(struct notifier_block *this,
-				 unsigned long mode, void *cmd)
+static int axxia_restart_handler(struct sys_off_data *data)
 {
+	struct regmap *syscon = data->cb_data;
+
 	/* Access Key (0xab) */
 	regmap_write(syscon, SC_CRIT_WRITE_KEY, 0xab);
 	/* Select internal boot from 0xffff0000 */
@@ -44,14 +43,10 @@ static int axxia_restart_handler(struct notifier_block *this,
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block axxia_restart_nb = {
-	.notifier_call = axxia_restart_handler,
-	.priority = 128,
-};
-
 static int axxia_reset_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
+	struct regmap *syscon;
 	int err;
 
 	syscon = syscon_regmap_lookup_by_phandle(dev->of_node, "syscon");
@@ -60,7 +55,8 @@ static int axxia_reset_probe(struct platform_device *pdev)
 		return PTR_ERR(syscon);
 	}
 
-	err = register_restart_handler(&axxia_restart_nb);
+	err = devm_register_sys_off_handler(&pdev->dev, SYS_OFF_MODE_RESTART,
+					    128, axxia_restart_handler, syscon);
 	if (err)
 		dev_err(dev, "cannot register restart handler (err=%d)\n", err);
 

drivers/power/reset/brcm-kona-reset.c

@@ -15,8 +15,7 @@
 
 static void __iomem *kona_reset_base;
 
-static int kona_reset_handler(struct notifier_block *this,
-				unsigned long mode, void *cmd)
+static int kona_reset_handler(struct sys_off_data *data)
 {
 	/*
 	 * A soft reset is triggered by writing a 0 to bit 0 of the soft reset
@@ -31,18 +30,14 @@ static int kona_reset_handler(struct notifier_block *this,
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block kona_reset_nb = {
-	.notifier_call = kona_reset_handler,
-	.priority = 128,
-};
-
 static int kona_reset_probe(struct platform_device *pdev)
 {
 	kona_reset_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(kona_reset_base))
 		return PTR_ERR(kona_reset_base);
 
-	return register_restart_handler(&kona_reset_nb);
+	return devm_register_sys_off_handler(&pdev->dev, SYS_OFF_MODE_RESTART,
+					     128, kona_reset_handler, NULL);
 }
 
 static const struct of_device_id of_match[] = {

drivers/power/reset/gemini-poweroff.c

@@ -70,12 +70,9 @@ static irqreturn_t gemini_powerbutton_interrupt(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-/* This callback needs this static local as it has void as argument */
-static struct gemini_powercon *gpw_poweroff;
-
-static void gemini_poweroff(void)
+static int gemini_poweroff(struct sys_off_data *data)
 {
-	struct gemini_powercon *gpw = gpw_poweroff;
+	struct gemini_powercon *gpw = data->cb_data;
 	u32 val;
 
 	dev_crit(gpw->dev, "Gemini power off\n");
@@ -86,6 +83,8 @@ static void gemini_poweroff(void)
 	val &= ~GEMINI_CTRL_ENABLE;
 	val |= GEMINI_CTRL_SHUTDOWN;
 	writel(val, gpw->base + GEMINI_PWC_CTRLREG);
+
+	return NOTIFY_DONE;
 }
 
 static int gemini_poweroff_probe(struct platform_device *pdev)
@@ -148,8 +147,11 @@ static int gemini_poweroff_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	pm_power_off = gemini_poweroff;
-	gpw_poweroff = gpw;
+	ret = devm_register_sys_off_handler(dev, SYS_OFF_MODE_POWER_OFF,
+					    SYS_OFF_PRIO_DEFAULT,
+					    gemini_poweroff, gpw);
+	if (ret)
+		return ret;
 
 	dev_info(dev, "Gemini poweroff driver registered\n");
 

drivers/power/reset/msm-poweroff.c

@@ -14,34 +14,27 @@
 #include <linux/pm.h>
 
 static void __iomem *msm_ps_hold;
-static int deassert_pshold(struct notifier_block *nb, unsigned long action,
-			   void *data)
+
+static int do_msm_poweroff(struct sys_off_data *data)
 {
 	writel(0, msm_ps_hold);
 	mdelay(10000);
 
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block restart_nb = {
-	.notifier_call = deassert_pshold,
-	.priority = 128,
-};
-
-static void do_msm_poweroff(void)
-{
-	deassert_pshold(&restart_nb, 0, NULL);
-}
-
 static int msm_restart_probe(struct platform_device *pdev)
 {
 	msm_ps_hold = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(msm_ps_hold))
 		return PTR_ERR(msm_ps_hold);
 
-	register_restart_handler(&restart_nb);
+	devm_register_sys_off_handler(&pdev->dev, SYS_OFF_MODE_RESTART,
+				      128, do_msm_poweroff, NULL);
 
-	pm_power_off = do_msm_poweroff;
+	devm_register_sys_off_handler(&pdev->dev, SYS_OFF_MODE_POWER_OFF,
+				      SYS_OFF_PRIO_DEFAULT, do_msm_poweroff,
+				      NULL);
 
 	return 0;
 }

drivers/power/reset/mt6323-poweroff.c

@@ -14,18 +14,17 @@
 #include <linux/platform_device.h>
 #include <linux/mfd/mt6397/core.h>
 #include <linux/mfd/mt6397/rtc.h>
+#include <linux/reboot.h>
 
 struct mt6323_pwrc {
 	struct device *dev;
 	struct regmap *regmap;
 	u32 base;
 };
 
-static struct mt6323_pwrc *mt_pwrc;
-
-static void mt6323_do_pwroff(void)
+static int mt6323_do_pwroff(struct sys_off_data *data)
 {
-	struct mt6323_pwrc *pwrc = mt_pwrc;
+	struct mt6323_pwrc *pwrc = data->cb_data;
 	unsigned int val;
 	int ret;
 
@@ -44,13 +43,16 @@ static void mt6323_do_pwroff(void)
 	mdelay(1000);
 
 	WARN_ONCE(1, "Unable to power off system\n");
+
+	return NOTIFY_DONE;
 }
 
 static int mt6323_pwrc_probe(struct platform_device *pdev)
 {
 	struct mt6397_chip *mt6397_chip = dev_get_drvdata(pdev->dev.parent);
 	struct mt6323_pwrc *pwrc;
 	struct resource *res;
+	int ret;
 
 	pwrc = devm_kzalloc(&pdev->dev, sizeof(*pwrc), GFP_KERNEL);
 	if (!pwrc)
@@ -63,19 +65,18 @@ static int mt6323_pwrc_probe(struct platform_device *pdev)
 	pwrc->base = res->start;
 	pwrc->regmap = mt6397_chip->regmap;
 	pwrc->dev = &pdev->dev;
-	mt_pwrc = pwrc;
 
-	pm_power_off = &mt6323_do_pwroff;
+	ret = devm_register_sys_off_handler(pwrc->dev,
+					    SYS_OFF_MODE_POWER_OFF,
+					    SYS_OFF_PRIO_DEFAULT,
+					    mt6323_do_pwroff,
+					    pwrc);
+	if (ret)
+		return dev_err_probe(pwrc->dev, ret, "failed to register power-off handler\n");
 
 	return 0;
 }
 
-static void mt6323_pwrc_remove(struct platform_device *pdev)
-{
-	if (pm_power_off == &mt6323_do_pwroff)
-		pm_power_off = NULL;
-}
-
 static const struct of_device_id mt6323_pwrc_dt_match[] = {
 	{ .compatible = "mediatek,mt6323-pwrc" },
 	{},
@@ -84,7 +85,6 @@ MODULE_DEVICE_TABLE(of, mt6323_pwrc_dt_match);
 
 static struct platform_driver mt6323_pwrc_driver = {
 	.probe          = mt6323_pwrc_probe,
-	.remove_new     = mt6323_pwrc_remove,
 	.driver         = {
 		.name   = "mt6323-pwrc",
 		.of_match_table = mt6323_pwrc_dt_match,