diff options
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/mfd/ab3100-core.c | 17 |
2 files changed, 11 insertions, 10 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 9bcd447e71e..ea2557bb0bd 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -329,8 +329,8 @@ config PCF50633_GPIO the PCF50633 chip. config AB3100_CORE - tristate "ST-Ericsson AB3100 Mixed Signal Circuit core functions" - depends on I2C + bool "ST-Ericsson AB3100 Mixed Signal Circuit core functions" + depends on I2C=y default y if ARCH_U300 help Select this to enable the AB3100 Mixed Signal IC core diff --git a/drivers/mfd/ab3100-core.c b/drivers/mfd/ab3100-core.c index aa3824a1b4f..a2ce3b6af4a 100644 --- a/drivers/mfd/ab3100-core.c +++ b/drivers/mfd/ab3100-core.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2007-2009 ST-Ericsson + * Copyright (C) 2007-2010 ST-Ericsson * License terms: GNU General Public License (GPL) version 2 * Low-level core for exclusive access to the AB3100 IC on the I2C bus * and some basic chip-configuration. @@ -14,6 +14,7 @@ #include <linux/platform_device.h> #include <linux/device.h> #include <linux/interrupt.h> +#include <linux/random.h> #include <linux/debugfs.h> #include <linux/seq_file.h> #include <linux/uaccess.h> @@ -376,6 +377,8 @@ static irqreturn_t ab3100_irq_handler(int irq, void *data) u32 fatevent; int err; + add_interrupt_randomness(irq); + err = ab3100_get_register_page_interruptible(ab3100, AB3100_EVENTA1, event_regs, 3); if (err) @@ -720,10 +723,7 @@ static struct platform_device ab3100_##devname##_device = { \ .id = -1, \ } -/* - * This lists all the subdevices and corresponding register - * ranges. - */ +/* This lists all the subdevices */ AB3100_DEVICE(dac, "ab3100-dac"); AB3100_DEVICE(leds, "ab3100-leds"); AB3100_DEVICE(power, "ab3100-power"); @@ -889,10 +889,11 @@ static int __init ab3100_probe(struct i2c_client *client, if (err) goto exit_no_setup; - /* This real unpredictable IRQ is of course sampled for entropy */ err = request_threaded_irq(client->irq, NULL, ab3100_irq_handler, - IRQF_ONESHOT, - "ab3100-core", ab3100); + IRQF_ONESHOT, "ab3100-core", ab3100); + /* This real unpredictable IRQ is of course sampled for entropy */ + rand_initialize_irq(client->irq); + if (err) goto exit_no_irq; |