linux-kernel - [PATCH v3 08/19] power: reset: axxia-reset: Use devm_register_sys_off

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Date: Thu, 8 Feb 2024 11:03:59 -0600
From: Andrew Davis <afd@...com>
To: Sebastian Reichel <sre@...nel.org>,
        Manivannan Sadhasivam
	<manivannan.sadhasivam@...aro.org>,
        Cristian Ciocaltea
	<cristian.ciocaltea@...il.com>,
        Florian Fainelli
	<florian.fainelli@...adcom.com>,
        Ray Jui <rjui@...adcom.com>, Scott Branden
	<sbranden@...adcom.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad
 Dybcio <konrad.dybcio@...aro.org>,
        Sean Wang <sean.wang@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>
CC: <linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-actions@...ts.infradead.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>, Andrew Davis <afd@...com>
Subject: [PATCH v3 08/19] power: reset: axxia-reset: Use devm_register_sys_off_handler(RESTART)

Use device life-cycle managed register function to simplify probe.

Signed-off-by: Andrew Davis <afd@...com>
---
 drivers/power/reset/axxia-reset.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/power/reset/axxia-reset.c b/drivers/power/reset/axxia-reset.c
index 24946766760c3..797bf6773860e 100644
--- a/drivers/power/reset/axxia-reset.c
+++ b/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);
 
-- 
2.39.2