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mfd: ab8500-core: Show turn on status at boot

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Several states can be detected when a device is initially turned on.
This patch displays these states in the log. If none of the states
are true, then we report that too.

Signed-off-by: Mattias Wallin <mattias.wallin@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Marcus COOPER <marcus.xm.cooper@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Mattias Wallin 2012-09-28 09:34:24 +02:00 committed by Lee Jones
parent 127629d74e
commit abee26cdb6
1 changed files with 26 additions and 0 deletions
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26
drivers/mfd/ab8500-core.c
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@ -1542,6 +1542,15 @@ static int ab8500_probe(struct platform_device *pdev)
"Battery level lower than power on reset threshold",
"Power on key 1 pressed longer than 10 seconds",
"DB8500 thermal shutdown"};
static char *turn_on_status[] = {
"Battery rising (Vbat)",
"Power On Key 1 dbF",
"Power On Key 2 dbF",
"RTC Alarm",
"Main Charger Detect",
"Vbus Detect (USB)",
"USB ID Detect",
"UART Factory Mode Detect"};
struct ab8500_platform_data *plat = dev_get_platdata(&pdev->dev);
const struct platform_device_id *platid = platform_get_device_id(pdev);
enum ab8500_version version = AB8500_VERSION_UNDEFINED;
@ -1655,9 +1664,26 @@ static int ab8500_probe(struct platform_device *pdev)
} else {
printk(KERN_CONT " None\n");
}
ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
AB8500_TURN_ON_STATUS, &value);
if (ret < 0)
return ret;
dev_info(ab8500->dev, "turn on reason(s) (%#x): ", value);
if (value) {
for (i = 0; i < ARRAY_SIZE(turn_on_status); i++) {
if (value & 1)
printk("\"%s\" ", turn_on_status[i]);
value = value >> 1;
}
printk("\n");
} else {
printk("None\n");
}
if (plat && plat->init)
plat->init(ab8500);
if (is_ab9540(ab8500)) {
ret = get_register_interruptible(ab8500, AB8500_CHARGER,
AB8500_CH_USBCH_STAT1_REG, &value);