From 7749ca5e2b52ed36d77a2d409b1a33327df09bd9 Mon Sep 17 00:00:00 2001 From: Mian Yousaf Kaukab Date: Fri, 27 Jan 2012 11:22:16 +0100 Subject: mfd: abx500: add api to dump all registers Some drivers can detect sub system failures e.g. shared memory driver can detect modem sub system failures. It would be helpful in analyzing these failures if AB register dump is available at that point. This patch adds the API for the drivers to dump AB registers in the kernel log. ST-Ericsson Linux next: - ST-Ericsson ID: 402239 ST-Ericsson FOSS-OUT ID: Trivial Change-Id: I544e40b4e2f68a80a6aa73135d4a15c433ec6a8b Signed-off-by: Mian Yousaf Kaukab Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/46909 Reviewed-by: Linus WALLEIJ Reviewed-by: QABUILD Reviewed-by: Jonas ABERG --- drivers/mfd/abx500-core.c | 16 ++++++++++++++++ include/linux/mfd/abx500.h | 2 ++ 2 files changed, 18 insertions(+) diff --git a/drivers/mfd/abx500-core.c b/drivers/mfd/abx500-core.c index 7ce65f49480..9818afba251 100644 --- a/drivers/mfd/abx500-core.c +++ b/drivers/mfd/abx500-core.c @@ -153,6 +153,22 @@ int abx500_startup_irq_enabled(struct device *dev, unsigned int irq) } EXPORT_SYMBOL(abx500_startup_irq_enabled); +void abx500_dump_all_banks(void) +{ + struct abx500_ops *ops; + struct device dummy_child = {0}; + struct abx500_device_entry *dev_entry; + + list_for_each_entry(dev_entry, &abx500_list, list) { + dummy_child.parent = dev_entry->dev; + ops = &dev_entry->ops; + + if ((ops != NULL) && (ops->dump_all_banks != NULL)) + ops->dump_all_banks(&dummy_child); + } +} +EXPORT_SYMBOL(abx500_dump_all_banks); + MODULE_AUTHOR("Mattias Wallin "); MODULE_DESCRIPTION("ABX500 core driver"); MODULE_LICENSE("GPL"); diff --git a/include/linux/mfd/abx500.h b/include/linux/mfd/abx500.h index 33bf25b9e58..2cf7f7b1823 100644 --- a/include/linux/mfd/abx500.h +++ b/include/linux/mfd/abx500.h @@ -444,6 +444,7 @@ int abx500_mask_and_set_register_interruptible(struct device *dev, u8 bank, int abx500_get_chip_id(struct device *dev); int abx500_event_registers_startup_state_get(struct device *dev, u8 *event); int abx500_startup_irq_enabled(struct device *dev, unsigned int irq); +void abx500_dump_all_banks(void); #define abx500_get abx500_get_register_interruptible #define abx500_set abx500_set_register_interruptible @@ -460,6 +461,7 @@ struct abx500_ops { int (*mask_and_set_register) (struct device *, u8, u8, u8, u8); int (*event_registers_startup_state_get) (struct device *, u8 *); int (*startup_irq_enabled) (struct device *, unsigned int); + void (*dump_all_banks) (struct device *); }; int abx500_register_ops(struct device *core_dev, struct abx500_ops *ops); -- cgit v1.2.3