diff options
Diffstat (limited to 'drivers/mfd/ab8500-core.c')
| -rw-r--r-- | drivers/mfd/ab8500-core.c | 82 |
1 files changed, 72 insertions, 10 deletions
diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index b6887014d687..67d01c938284 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -4,7 +4,7 @@ * License Terms: GNU General Public License v2 * Author: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> * Author: Rabin Vincent <rabin.vincent@stericsson.com> - * Changes: Mattias Wallin <mattias.wallin@stericsson.com> + * Author: Mattias Wallin <mattias.wallin@stericsson.com> */ #include <linux/kernel.h> @@ -90,6 +90,7 @@ #define AB8500_IT_MASK24_REG 0x57 #define AB8500_REV_REG 0x80 +#define AB8500_SWITCH_OFF_STATUS 0x00 /* * Map interrupt numbers to the LATCH and MASK register offsets, Interrupt @@ -333,14 +334,14 @@ static int ab8500_irq_init(struct ab8500 *ab8500) int irq; for (irq = base; irq < base + AB8500_NR_IRQS; irq++) { - set_irq_chip_data(irq, ab8500); - set_irq_chip_and_handler(irq, &ab8500_irq_chip, + irq_set_chip_data(irq, ab8500); + irq_set_chip_and_handler(irq, &ab8500_irq_chip, handle_simple_irq); - set_irq_nested_thread(irq, 1); + irq_set_nested_thread(irq, 1); #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID); #else - set_irq_noprobe(irq); + irq_set_noprobe(irq); #endif } @@ -356,11 +357,20 @@ static void ab8500_irq_remove(struct ab8500 *ab8500) #ifdef CONFIG_ARM set_irq_flags(irq, 0); #endif - set_irq_chip_and_handler(irq, NULL, NULL); - set_irq_chip_data(irq, NULL); + irq_set_chip_and_handler(irq, NULL, NULL); + irq_set_chip_data(irq, NULL); } } +static struct resource ab8500_gpio_resources[] = { + { + .name = "GPIO_INT6", + .start = AB8500_INT_GPIO6R, + .end = AB8500_INT_GPIO41F, + .flags = IORESOURCE_IRQ, + } +}; + static struct resource ab8500_gpadc_resources[] = { { .name = "HW_CONV_END", @@ -595,6 +605,11 @@ static struct mfd_cell ab8500_devs[] = { .name = "ab8500-regulator", }, { + .name = "ab8500-gpio", + .num_resources = ARRAY_SIZE(ab8500_gpio_resources), + .resources = ab8500_gpio_resources, + }, + { .name = "ab8500-gpadc", .num_resources = ARRAY_SIZE(ab8500_gpadc_resources), .resources = ab8500_gpadc_resources, @@ -652,10 +667,38 @@ static ssize_t show_chip_id(struct device *dev, return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL); } +/* + * ab8500 has switched off due to (SWITCH_OFF_STATUS): + * 0x01 Swoff bit programming + * 0x02 Thermal protection activation + * 0x04 Vbat lower then BattOk falling threshold + * 0x08 Watchdog expired + * 0x10 Non presence of 32kHz clock + * 0x20 Battery level lower than power on reset threshold + * 0x40 Power on key 1 pressed longer than 10 seconds + * 0x80 DB8500 thermal shutdown + */ +static ssize_t show_switch_off_status(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int ret; + u8 value; + struct ab8500 *ab8500; + + ab8500 = dev_get_drvdata(dev); + ret = get_register_interruptible(ab8500, AB8500_RTC, + AB8500_SWITCH_OFF_STATUS, &value); + if (ret < 0) + return ret; + return sprintf(buf, "%#x\n", value); +} + static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL); +static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL); static struct attribute *ab8500_sysfs_entries[] = { &dev_attr_chip_id.attr, + &dev_attr_switch_off_status.attr, NULL, }; @@ -686,9 +729,10 @@ int __devinit ab8500_init(struct ab8500 *ab8500) * 0x10 - Cut 1.0 * 0x11 - Cut 1.1 * 0x20 - Cut 2.0 + * 0x30 - Cut 3.0 */ - if (value == 0x0 || value == 0x10 || value == 0x11 || value == 0x20) { - ab8500->revision = value; + if (value == 0x0 || value == 0x10 || value == 0x11 || value == 0x20 || + value == 0x30) { dev_info(ab8500->dev, "detected chip, revision: %#x\n", value); } else { dev_err(ab8500->dev, "unknown chip, revision: %#x\n", value); @@ -696,6 +740,24 @@ int __devinit ab8500_init(struct ab8500 *ab8500) } ab8500->chip_id = value; + /* + * ab8500 has switched off due to (SWITCH_OFF_STATUS): + * 0x01 Swoff bit programming + * 0x02 Thermal protection activation + * 0x04 Vbat lower then BattOk falling threshold + * 0x08 Watchdog expired + * 0x10 Non presence of 32kHz clock + * 0x20 Battery level lower than power on reset threshold + * 0x40 Power on key 1 pressed longer than 10 seconds + * 0x80 DB8500 thermal shutdown + */ + + ret = get_register_interruptible(ab8500, AB8500_RTC, + AB8500_SWITCH_OFF_STATUS, &value); + if (ret < 0) + return ret; + dev_info(ab8500->dev, "switch off status: %#x", value); + if (plat && plat->init) plat->init(ab8500); @@ -764,6 +826,6 @@ int __devexit ab8500_exit(struct ab8500 *ab8500) return 0; } -MODULE_AUTHOR("Srinidhi Kasagar, Rabin Vincent"); +MODULE_AUTHOR("Mattias Wallin, Srinidhi Kasagar, Rabin Vincent"); MODULE_DESCRIPTION("AB8500 MFD core"); MODULE_LICENSE("GPL v2"); |