Commit 108fcb42 authored by Michael Hennerich's avatar Michael Hennerich Committed by Dmitry Torokhov

Input: bf54x-keys - add power management support

Fix Bug: does nor properply resume after suspend mem
Fix for PM_SUSPEND_MEM: Save and restore peripheral base registers
Signed-off-by: default avatarMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: default avatarBryan Wu <cooloney@kernel.org>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent d8c1f317
......@@ -8,7 +8,7 @@
*
*
* Modified:
* Copyright 2007 Analog Devices Inc.
* Copyright 2007-2008 Analog Devices Inc.
*
* Bugs: Enter bugs at http://blackfin.uclinux.org/
*
......@@ -82,6 +82,9 @@ struct bf54x_kpad {
unsigned short *keycode;
struct timer_list timer;
unsigned int keyup_test_jiffies;
unsigned short kpad_msel;
unsigned short kpad_prescale;
unsigned short kpad_ctl;
};
static inline int bfin_kpad_find_key(struct bf54x_kpad *bf54x_kpad,
......@@ -361,6 +364,10 @@ static int bfin_kpad_suspend(struct platform_device *pdev, pm_message_t state)
{
struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
bf54x_kpad->kpad_msel = bfin_read_KPAD_MSEL();
bf54x_kpad->kpad_prescale = bfin_read_KPAD_PRESCALE();
bf54x_kpad->kpad_ctl = bfin_read_KPAD_CTL();
if (device_may_wakeup(&pdev->dev))
enable_irq_wake(bf54x_kpad->irq);
......@@ -371,6 +378,10 @@ static int bfin_kpad_resume(struct platform_device *pdev)
{
struct bf54x_kpad *bf54x_kpad = platform_get_drvdata(pdev);
bfin_write_KPAD_MSEL(bf54x_kpad->kpad_msel);
bfin_write_KPAD_PRESCALE(bf54x_kpad->kpad_prescale);
bfin_write_KPAD_CTL(bf54x_kpad->kpad_ctl);
if (device_may_wakeup(&pdev->dev))
disable_irq_wake(bf54x_kpad->irq);
......
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