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

Signed-off-by: Andrew Davis <afd@ti.com>
---
 drivers/power/reset/msm-poweroff.c | 23 ++++++-----------------
 1 file changed, 6 insertions(+), 17 deletions(-)

diff --git a/drivers/power/reset/msm-poweroff.c b/drivers/power/reset/msm-poweroff.c
index bcf04491e7022..c5831c46f69e2 100644
--- a/drivers/power/reset/msm-poweroff.c
+++ b/drivers/power/reset/msm-poweroff.c
@@ -13,35 +13,24 @@
 #include <linux/reboot.h>
 #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)
 {
+	void __iomem *msm_ps_hold = data->cb_data;
+
 	writel(0, msm_ps_hold);
 	mdelay(10000);
 
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block restart_nb = {
-	.notifier_call = deassert_pshold,
-	.priority = 128,
-};
-
-static int do_msm_poweroff(struct sys_off_data *data)
-{
-	deassert_pshold(&restart_nb, 0, NULL);
-
-	return NOTIFY_DONE;
-}
-
 static int msm_restart_probe(struct platform_device *pdev)
 {
-	msm_ps_hold = devm_platform_ioremap_resource(pdev, 0);
+	void __iomem *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, msm_ps_hold);
 
 	devm_register_sys_off_handler(&pdev->dev, SYS_OFF_MODE_POWER_OFF,
 				      SYS_OFF_PRIO_DEFAULT, do_msm_poweroff,
-- 
2.39.2

Hi Andrew,

kernel test robot noticed the following build warnings:

[auto build test WARNING on sre-power-supply/for-next]
[also build test WARNING on mani-mhi/mhi-next soc/for-next linus/master v6.8-rc4 next-20240209]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Andrew-Davis/power-reset-atc260x-poweroff-Use-devm_register_sys_off_handler-RESTART/20240209-011655
base:   https://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git for-next
patch link:    https://lore.kernel.org/r/20240208170410.67975-14-afd%40ti.com
patch subject: [PATCH v3 13/19] power: reset: msm-poweroff: Use devm_register_sys_off_handler(RESTART)
:::::: branch date: 4 days ago
:::::: commit date: 4 days ago
config: arm64-randconfig-r131-20240211 (https://download.01.org/0day-ci/archive/20240212/202402121342.7WgNqBu9-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20240212/202402121342.7WgNqBu9-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/r/202402121342.7WgNqBu9-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/power/reset/msm-poweroff.c:18:41: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected void [noderef] __iomem *msm_ps_hold @@     got void *cb_data @@
   drivers/power/reset/msm-poweroff.c:18:41: sparse:     expected void [noderef] __iomem *msm_ps_hold
   drivers/power/reset/msm-poweroff.c:18:41: sparse:     got void *cb_data
>> drivers/power/reset/msm-poweroff.c:33:61: sparse: sparse: incorrect type in argument 5 (different address spaces) @@     expected void *cb_data @@     got void [noderef] __iomem *msm_ps_hold @@
   drivers/power/reset/msm-poweroff.c:33:61: sparse:     expected void *cb_data
   drivers/power/reset/msm-poweroff.c:33:61: sparse:     got void [noderef] __iomem *msm_ps_hold
   drivers/power/reset/msm-poweroff.c:37:39: sparse: sparse: incorrect type in argument 5 (different address spaces) @@     expected void *cb_data @@     got void [noderef] __iomem *msm_ps_hold @@
   drivers/power/reset/msm-poweroff.c:37:39: sparse:     expected void *cb_data
   drivers/power/reset/msm-poweroff.c:37:39: sparse:     got void [noderef] __iomem *msm_ps_hold

vim +18 drivers/power/reset/msm-poweroff.c

78be3176c4335b Abhimanyu Kapur 2013-07-30  15  
bc460fab0b719d Andrew Davis    2024-02-08  16  static int do_msm_poweroff(struct sys_off_data *data)
78be3176c4335b Abhimanyu Kapur 2013-07-30  17  {
bc460fab0b719d Andrew Davis    2024-02-08 @18  	void __iomem *msm_ps_hold = data->cb_data;
bc460fab0b719d Andrew Davis    2024-02-08  19  
78be3176c4335b Abhimanyu Kapur 2013-07-30  20  	writel(0, msm_ps_hold);
78be3176c4335b Abhimanyu Kapur 2013-07-30  21  	mdelay(10000);
18a702e0de9879 Pramod Gurav    2014-09-25  22  
18a702e0de9879 Pramod Gurav    2014-09-25  23  	return NOTIFY_DONE;
78be3176c4335b Abhimanyu Kapur 2013-07-30  24  }
78be3176c4335b Abhimanyu Kapur 2013-07-30  25  
78be3176c4335b Abhimanyu Kapur 2013-07-30  26  static int msm_restart_probe(struct platform_device *pdev)
78be3176c4335b Abhimanyu Kapur 2013-07-30  27  {
bc460fab0b719d Andrew Davis    2024-02-08  28  	void __iomem *msm_ps_hold = devm_platform_ioremap_resource(pdev, 0);
78be3176c4335b Abhimanyu Kapur 2013-07-30  29  	if (IS_ERR(msm_ps_hold))
78be3176c4335b Abhimanyu Kapur 2013-07-30  30  		return PTR_ERR(msm_ps_hold);
78be3176c4335b Abhimanyu Kapur 2013-07-30  31  
bc460fab0b719d Andrew Davis    2024-02-08  32  	devm_register_sys_off_handler(&pdev->dev, SYS_OFF_MODE_RESTART,
bc460fab0b719d Andrew Davis    2024-02-08 @33  				      128, do_msm_poweroff, msm_ps_hold);
18a702e0de9879 Pramod Gurav    2014-09-25  34  
521ef776c49589 Andrew Davis    2024-02-08  35  	devm_register_sys_off_handler(&pdev->dev, SYS_OFF_MODE_POWER_OFF,
521ef776c49589 Andrew Davis    2024-02-08  36  				      SYS_OFF_PRIO_DEFAULT, do_msm_poweroff,
521ef776c49589 Andrew Davis    2024-02-08  37  				      msm_ps_hold);
18a702e0de9879 Pramod Gurav    2014-09-25  38  
78be3176c4335b Abhimanyu Kapur 2013-07-30  39  	return 0;
78be3176c4335b Abhimanyu Kapur 2013-07-30  40  }
78be3176c4335b Abhimanyu Kapur 2013-07-30  41  

-- 
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