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Commit f4beb492 authored by Lingutla Chandrasekhar's avatar Lingutla Chandrasekhar
Browse files

power: reset: msm: add support to select both dumps 



With Minidump support enabled, user may need to request
to dump both fulldump as well as minidump for debug purpose.

Add support on dload_mode sysfs entry to select both dumps.
Enable both dumps with command:
	echo both > /sys/kernel/dload/dload_mode

Change-Id: I2f7c4c6e26dc236c75ab89490990c87b7139880b
Signed-off-by: default avatarLingutla Chandrasekhar <clingutla@codeaurora.org>
parent be58516a

drivers/power/reset/msm-poweroff.c

+13 −4
Original line number Diff line number Diff line
@@ -47,7 +47,7 @@ 
#define SCM_EDLOAD_MODE			0X01

#define SCM_DLOAD_CMD			0x10

#define SCM_DLOAD_MINIDUMP		0X20



#define SCM_DLOAD_BOTHDUMPS	(SCM_DLOAD_MINIDUMP | SCM_DLOAD_FULLDUMP)



static int restart_mode;

static void *restart_reason;
@@ -488,7 +488,8 @@ static ssize_t show_dload_mode(struct kobject *kobj, struct attribute *attr, 
				char *buf)

{

	return scnprintf(buf, PAGE_SIZE, "DLOAD dump type: %s\n",

			(dload_type == SCM_DLOAD_MINIDUMP) ? "mini" : "full");

		(dload_type == SCM_DLOAD_BOTHDUMPS) ? "both" :

		((dload_type == SCM_DLOAD_MINIDUMP) ? "mini" : "full"));

}



static size_t store_dload_mode(struct kobject *kobj, struct attribute *attr,
@@ -502,8 +503,16 @@ static size_t store_dload_mode(struct kobject *kobj, struct attribute *attr, 
			return -ENODEV;

		}

		dload_type = SCM_DLOAD_MINIDUMP;

	} else if (sysfs_streq(buf, "both")) {

		if (!minidump_enabled) {

			pr_err("Minidump not enabled, setting fulldump only\n");

			dload_type = SCM_DLOAD_FULLDUMP;

			return count;

		}

		dload_type = SCM_DLOAD_BOTHDUMPS;

	} else{

		pr_err("Invalid value. Use 'full' or 'mini'\n");

		pr_err("Invalid Dump setup request..\n");

		pr_err("Supported dumps:'full', 'mini', or 'both'\n");

		return -EINVAL;

	}