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| author | Michael Hennerich <michael.hennerich@analog.com> | 2008-08-15 13:53:08 -0400 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2008-09-10 12:12:26 -0400 |
| commit | 108fcb42c7bfd9ee205d1b8247813548705073b7 (patch) | |
| tree | 5c748af0e103912ad0ca5167e7c2bc556b67604b /drivers/input/keyboard/bf54x-keys.c | |
| parent | d8c1f317d1b3bb5c21175550968c86acfab3ff36 (diff) | |
| download | lwn-108fcb42c7bfd9ee205d1b8247813548705073b7.tar.gz lwn-108fcb42c7bfd9ee205d1b8247813548705073b7.zip | |
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: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/keyboard/bf54x-keys.c')
| -rw-r--r-- | drivers/input/keyboard/bf54x-keys.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/input/keyboard/bf54x-keys.c b/drivers/input/keyboard/bf54x-keys.c index 54ed8e2e1c02..f1d20817ef29 100644 --- a/drivers/input/keyboard/bf54x-keys.c +++ b/drivers/input/keyboard/bf54x-keys.c @@ -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); |