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-rw-r--r--arch/i386/kernel/i8259.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/i386/kernel/i8259.c b/arch/i386/kernel/i8259.c
index 2c4813b47e57..178f4e9bac9d 100644
--- a/arch/i386/kernel/i8259.c
+++ b/arch/i386/kernel/i8259.c
@@ -268,10 +268,22 @@ static int i8259A_suspend(struct sys_device *dev, pm_message_t state)
268 return 0; 268 return 0;
269} 269}
270 270
271static int i8259A_shutdown(struct sys_device *dev)
272{
273 /* Put the i8259A into a quiescent state that
274 * the kernel initialization code can get it
275 * out of.
276 */
277 outb(0xff, 0x21); /* mask all of 8259A-1 */
278 outb(0xff, 0xA1); /* mask all of 8259A-1 */
279 return 0;
280}
281
271static struct sysdev_class i8259_sysdev_class = { 282static struct sysdev_class i8259_sysdev_class = {
272 set_kset_name("i8259"), 283 set_kset_name("i8259"),
273 .suspend = i8259A_suspend, 284 .suspend = i8259A_suspend,
274 .resume = i8259A_resume, 285 .resume = i8259A_resume,
286 .shutdown = i8259A_shutdown,
275}; 287};
276 288
277static struct sys_device device_i8259A = { 289static struct sys_device device_i8259A = {