在 2018/8/18 1:47, Rob Herring 写道:
On Tue, Aug 14, 2018 at 7:26 PM Frank Rowand wrote:
On 08/14/18 07:46, 张波 wrote:
/delete-node/ /delete-prop/ could be used in dtsi files without device
tree overlay.
but with device tree overlay, /delete-node/ and /delete-prop/ are not work.
How to delete
his condition the device will start keypad and enable irq once after
resume. and then irqs are disabled yet because irqs are disabled twice and
only enable once.
Take lock around keypad->stopped to ensure irqs operation is in atomic
operation.
Signed-off-by: Zhang Bo
---
Changes in v3:
- del
disabled
> > twice and
> > only enable once.
> >
> > Take lock around keypad->stopped and queue delayed work in
> > matrix_keypad_start() and matrix_keypad_stop() to ensure irqs
> > operation and
> > scheduling scan work are in atomic operation.
>
At 2018-02-03 21:44:50, "Marcus Folkesson" wrote:
>> diff --git a/drivers/input/keyboard/matrix_keypad.c
>> b/drivers/input/keyboard/matrix_keypad.c
>> index 1f316d66e6f7..13fe51824637 100644
>> --- a/drivers/input/keyboard/matrix_keypad.c
>> +++ b/drivers/input/keyboard/matrix_keypad.c
>> @@ -16
At 2018-02-03 21:44:50, "Marcus Folkesson" wrote:
>> diff --git a/drivers/input/keyboard/matrix_keypad.c
>> b/drivers/input/keyboard/matrix_keypad.c
>> index 1f316d66e6f7..13fe51824637 100644
>> --- a/drivers/input/keyboard/matrix_keypad.c
>> +++ b/drivers/input/keyboard/matrix_keypad.c
>> @@ -16
on and
scheduling scan work are in atomic operation.
Signed-off-by: Zhang Bo
---
Changes in v2:
- Change commit message and full name in the signed-off-by tag.
drivers/input/keyboard/matrix_keypad.c | 18 --
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers
on and
scheduling scan work are in atomic operation.
Signed-off-by: Zhang Bo
---
drivers/input/keyboard/matrix_keypad.c | 18 --
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/drivers/input/keyboard/matrix_keypad.c
b/drivers/input/keyboard/matrix_keypad.c
index 1f316d
From: zhangbo
If matrix_keypad_stop() is calling and the keypad interrupt is triggered,
disable_row_irqs() is called by both matrix_keypad_interrupt() and
matrix_keypad_stop() at the same time. then disable_row_irqs() is called
twice, and the device enter suspend state before keypad->work is exec
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