enable docker ppp

hc

2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87

 kernel/drivers/power/reset/sc27xx-poweroff.c
..
..
@@ -6,6 +6,7 @@
6
6
 
7
7
 #include <linux/cpu.h>
8
8
 #include <linux/kernel.h>
9
+#include <linux/module.h>
9
10
 #include <linux/platform_device.h>
10
11
 #include <linux/pm.h>
11
12
 #include <linux/regmap.h>
..
..
@@ -13,6 +14,8 @@
13
14
 
14
15
 #define SC27XX_PWR_PD_HW	0xc2c
15
16
 #define SC27XX_PWR_OFF_EN	BIT(0)
17
+#define SC27XX_SLP_CTRL		0xdf0
18
+#define SC27XX_LDO_XTL_EN	BIT(3)
16
19
 
17
20
 static struct regmap *regmap;
18
21
 
..
..
@@ -27,10 +30,13 @@
27
30
  */
28
31
 static void sc27xx_poweroff_shutdown(void)
29
32
 {
30
-#ifdef CONFIG_PM_SLEEP_SMP
31
-	int cpu = smp_processor_id();
33
+#ifdef CONFIG_HOTPLUG_CPU
34
+	int cpu;
32
35
 
33
-	freeze_secondary_cpus(cpu);
36
+	for_each_online_cpu(cpu) {
37
+		if (cpu != smp_processor_id())
38
+			remove_cpu(cpu);
39
+	}
34
40
 #endif
35
41
 }
36
42
 
..
..
@@ -40,6 +46,9 @@
40
46
 
41
47
 static void sc27xx_poweroff_do_poweroff(void)
42
48
 {
49
+	/* Disable the external subsys connection's power firstly */
50
+	regmap_write(regmap, SC27XX_SLP_CTRL, SC27XX_LDO_XTL_EN);
51
+
43
52
 	regmap_write(regmap, SC27XX_PWR_PD_HW, SC27XX_PWR_OFF_EN);
44
53
 }
45
54
 
..
..
@@ -63,4 +72,8 @@
63
72
 		.name = "sc27xx-poweroff",
64
73
 	},
65
74
 };
66
-builtin_platform_driver(sc27xx_poweroff_driver);
75
+module_platform_driver(sc27xx_poweroff_driver);
76
+
77
+MODULE_DESCRIPTION("Power off driver for SC27XX PMIC Device");
78
+MODULE_AUTHOR("Baolin Wang <baolin.wang@unisoc.com>");
79
+MODULE_LICENSE("GPL v2");