Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

genirq: Improve documentation to match current implementation

Browse source 
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Jiri Kosina <trivial@kernel.org>
Link: http://lkml.kernel.org/r/1401178092-1228-3-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Jiang Liu 2014-05-27 16:07:37 +08:00 committed by Thomas Gleixner
parent 8d2af85e87
commit a257954bb3
3 changed files with 5 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
Documentation/IRQ-domain.txt
View file

@ -41,8 +41,7 @@ An interrupt controller driver creates and registers an irq_domain by
calling one of the irq_domain_add_*() functions (each mapping method calling one of the irq_domain_add_*() functions (each mapping method
has a different allocator function, more on that later). The function has a different allocator function, more on that later). The function
will return a pointer to the irq_domain on success. The caller must will return a pointer to the irq_domain on success. The caller must
provide the allocator function with an irq_domain_ops structure with provide the allocator function with an irq_domain_ops structure.
the .map callback populated as a minimum.
In most cases, the irq_domain will begin empty without any mappings In most cases, the irq_domain will begin empty without any mappings
between hwirq and IRQ numbers. Mappings are added to the irq_domain between hwirq and IRQ numbers. Mappings are added to the irq_domain

2
kernel/irq/internals.h
View file

@ -33,7 +33,7 @@ enum {
}; };
/* /*
* Bit masks for desc->state * Bit masks for desc->core_internal_state__do_not_mess_with_it
* *
* IRQS_AUTODETECT - autodetection in progress * IRQS_AUTODETECT - autodetection in progress
* IRQS_SPURIOUS_DISABLED - was disabled due to spurious interrupt * IRQS_SPURIOUS_DISABLED - was disabled due to spurious interrupt

6
kernel/irq/irqdomain.c
View file

@ -27,14 +27,14 @@ static struct irq_domain *irq_default_domain;
* __irq_domain_add() - Allocate a new irq_domain data structure * __irq_domain_add() - Allocate a new irq_domain data structure
* @of_node: optional device-tree node of the interrupt controller * @of_node: optional device-tree node of the interrupt controller
* @size: Size of linear map; 0 for radix mapping only * @size: Size of linear map; 0 for radix mapping only
* @hwirq_max: Maximum number of interrupts supported by controller
* @direct_max: Maximum value of direct maps; Use ~0 for no limit; 0 for no * @direct_max: Maximum value of direct maps; Use ~0 for no limit; 0 for no
* direct mapping * direct mapping
* @ops: map/unmap domain callbacks * @ops: map/unmap domain callbacks
* @host_data: Controller private data pointer * @host_data: Controller private data pointer
* *
* Allocates and initialize and irq_domain structure. Caller is expected to * Allocates and initialize and irq_domain structure.
* register allocated irq_domain with irq_domain_register(). Returns pointer * Returns pointer to IRQ domain, or NULL on failure.
* to IRQ domain, or NULL on failure.
*/ */
struct irq_domain *__irq_domain_add(struct device_node *of_node, int size, struct irq_domain *__irq_domain_add(struct device_node *of_node, int size,
irq_hw_number_t hwirq_max, int direct_max, irq_hw_number_t hwirq_max, int direct_max,