diff options
| author | Mattias Wallin <mattias.wallin@stericsson.com> | 2012-09-28 09:34:24 +0200 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2013-03-07 05:29:00 +0100 |
| commit | abee26cdb685fa47d3d17ec9cf39f6149ce67083 (patch) | |
| tree | 27dffb6d68473910866adbf1685be565bb62fdcf /drivers/mfd | |
| parent | mfd: ab8500-debug: Add ADC input channel usb_id in debugfs (diff) | |
| download | linux-abee26cdb685fa47d3d17ec9cf39f6149ce67083.tar.xz linux-abee26cdb685fa47d3d17ec9cf39f6149ce67083.zip | |
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')
| -rw-r--r-- | drivers/mfd/ab8500-core.c | 26 |
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); |