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authorMattias Wallin <mattias.wallin@stericsson.com>2012-09-28 11:34:24 +0400
committerLee Jones <lee.jones@linaro.org>2013-03-07 08:29:00 +0400
commitabee26cdb685fa47d3d17ec9cf39f6149ce67083 (patch)
tree27dffb6d68473910866adbf1685be565bb62fdcf /drivers/mfd/ab8500-core.c
parent127629d74efff202372fbd6097e607fcb2c8a7af (diff)
downloadlinux-abee26cdb685fa47d3d17ec9cf39f6149ce67083.tar.xz
mfd: ab8500-core: Show turn on status at boot
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>
Diffstat (limited to 'drivers/mfd/ab8500-core.c')
-rw-r--r--drivers/mfd/ab8500-core.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index 141572c6c392..a4120edbccf2 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -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);