diff options
| author | Iliyan Malchev <malchev@google.com> | 2015-02-20 11:01:24 -0800 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2019-12-23 23:43:34 +0200 |
| commit | 6edd3f1417d82add8c98d292ba39912b830c3d80 (patch) | |
| tree | 7c030a7289a70a8b8e845b2925105cd0e082d3f3 /kernel/irq/irqdesc.c | |
| parent | 2402e1b97f9333cdd985f14810ae764ba7335342 (diff) | |
BACKPORT: PM: wakeup_reason: add functions to query and clear wakeup reasons
The query results are valid until the next PM_SUSPEND_PREPARE.
(cherry picked from commit 76543de14f860ab713114621cb62e8006b7ca952)
Change-Id: I6bc2bd47c830262319576a001d39ac9a994916cf
Signed-off-by: Iliyan Malchev <malchev@google.com>
Diffstat (limited to 'kernel/irq/irqdesc.c')
| -rw-r--r-- | kernel/irq/irqdesc.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 239e2ae2c947..a935c1bb768e 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -15,6 +15,7 @@ #include <linux/radix-tree.h> #include <linux/bitmap.h> #include <linux/irqdomain.h> +#include <linux/wakeup_reason.h> #include "internals.h" @@ -339,16 +340,25 @@ void irq_init_desc(unsigned int irq) /** * generic_handle_irq - Invoke the handler for a particular irq * @irq: The irq number to handle - * + * returns: + * negative on error + * 0 when the interrupt handler was not called + * 1 when the interrupt handler was called */ + int generic_handle_irq(unsigned int irq) { struct irq_desc *desc = irq_to_desc(irq); if (!desc) return -EINVAL; - generic_handle_irq_desc(desc); - return 0; + + if (unlikely(logging_wakeup_reasons())) + return log_possible_wakeup_reason(irq, + desc, + generic_handle_irq_desc); + + return generic_handle_irq_desc(desc); } EXPORT_SYMBOL_GPL(generic_handle_irq); |