* [RFC PATCH v3 0/6] Report wakeup events in cros_ec_keyb and make cros-ec-spi wakeup optional
@ 2017-06-21 10:01 Jeffy Chen
[not found] ` <1498039313-24220-1-git-send-email-jeffy.chen-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2017-06-21 10:01 ` [RFC PATCH v3 2/6] dt-bindings: spi/core: add wakeup-source optional property Jeffy Chen
0 siblings, 2 replies; 8+ messages in thread
From: Jeffy Chen @ 2017-06-21 10:01 UTC (permalink / raw)
To: linux-kernel-u79uwXL29TY76Z2rM5mHXA
Cc: briannorris-F7+t8E8rja9g9hUCZPvPmw,
dmitry.torokhov-Re5JQEeQqe8AvxtiuMwx3w,
dianders-F7+t8E8rja9g9hUCZPvPmw, Jeffy Chen, Guenter Roeck,
Arnd Bergmann, Vic Yang, Rob Herring, Catalin Marinas,
linux-samsung-soc-u79uwXL29TY76Z2rM5mHXA, Heiko Stuebner,
linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
Krzysztof Kozlowski, linux-input-u79uwXL29TY76Z2rM5mHXA,
Will Deacon, devicetree-u79uwXL29TY76Z2rM5mHXA, Kukjin Kim,
Thierry Reding, Jonathan Hunter, Lee Jones,
linux-tegra-u79uwXL29TY76Z2rM5mHXA, Russell King,
linux-arm-kerne
We are enabling wakeup unconditionally for cros-ec-spi, it would be good to make it optional.
And we also need to enable wakeup for cros_ec_keyb, so the userspace could disable keyboard wakeup along with other cros-ec sub devices.
Changes in v3:
Use wakeup-source property to enable wakeup.
Suggested by Dmitry Torokhov <dmitry.torokhov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>.
Jeffy Chen (6):
spi: core: add support for wakeup-source dts property
dt-bindings: spi/core: add wakeup-source optional property
ARM/arm64: dts: enable wakeup for cros-ec-spi devices
mfd: cros ec: spi: remove unconditionally wakeup enable
input: cros_ec_keyb: report wakeup events
ARM: dts: cros-ec-keyboard: enable as wakeup source
Documentation/devicetree/bindings/spi/spi-bus.txt | 1 +
arch/arm/boot/dts/cros-ec-keyboard.dtsi | 1 +
arch/arm/boot/dts/exynos5420-peach-pit.dts | 1 +
arch/arm/boot/dts/exynos5800-peach-pi.dts | 1 +
arch/arm/boot/dts/rk3288-veyron-chromebook.dtsi | 1 +
arch/arm/boot/dts/tegra124-nyan.dtsi | 1 +
arch/arm/boot/dts/tegra124-venice2.dts | 1 +
arch/arm64/boot/dts/nvidia/tegra132-norrin.dts | 1 +
arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi | 1 +
drivers/input/keyboard/cros_ec_keyb.c | 8 ++++++++
drivers/mfd/cros_ec_spi.c | 2 --
drivers/spi/spi.c | 15 +++++++++++----
12 files changed, 28 insertions(+), 6 deletions(-)
--
2.1.4
^ permalink raw reply [flat|nested] 8+ messages in thread
* [RFC PATCH v3 1/6] spi: core: add support for wakeup-source dts property
[not found] ` <1498039313-24220-1-git-send-email-jeffy.chen-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
@ 2017-06-21 10:01 ` Jeffy Chen
2017-06-21 10:52 ` Mark Brown
0 siblings, 1 reply; 8+ messages in thread
From: Jeffy Chen @ 2017-06-21 10:01 UTC (permalink / raw)
To: linux-kernel-u79uwXL29TY76Z2rM5mHXA
Cc: briannorris-F7+t8E8rja9g9hUCZPvPmw,
dmitry.torokhov-Re5JQEeQqe8AvxtiuMwx3w,
dianders-F7+t8E8rja9g9hUCZPvPmw, Jeffy Chen, Mark Brown,
linux-spi-u79uwXL29TY76Z2rM5mHXA
Use generic wakeup-source property to enable spi device wakeup.
Signed-off-by: Jeffy Chen <jeffy.chen-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
---
Changes in v3: None
drivers/spi/spi.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index c3f6b52..a510bba 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -547,11 +547,16 @@ int spi_add_device(struct spi_device *spi)
/* Device may be bound to an active driver when this returns */
status = device_add(&spi->dev);
- if (status < 0)
+ if (status < 0) {
dev_err(dev, "can't add %s, status %d\n",
- dev_name(&spi->dev), status);
- else
- dev_dbg(dev, "registered child %s\n", dev_name(&spi->dev));
+ dev_name(&spi->dev), status);
+ goto done;
+ }
+
+ dev_dbg(dev, "registered child %s\n", dev_name(&spi->dev));
+
+ if (device_property_read_bool(&spi->dev, "wakeup-source"))
+ device_init_wakeup(&spi->dev, true);
done:
mutex_unlock(&spi_add_lock);
@@ -638,6 +643,8 @@ void spi_unregister_device(struct spi_device *spi)
if (!spi)
return;
+ device_init_wakeup(&spi->dev, false);
+
if (spi->dev.of_node) {
of_node_clear_flag(spi->dev.of_node, OF_POPULATED);
of_node_put(spi->dev.of_node);
--
2.1.4
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^ permalink raw reply related [flat|nested] 8+ messages in thread
* [RFC PATCH v3 2/6] dt-bindings: spi/core: add wakeup-source optional property
2017-06-21 10:01 [RFC PATCH v3 0/6] Report wakeup events in cros_ec_keyb and make cros-ec-spi wakeup optional Jeffy Chen
[not found] ` <1498039313-24220-1-git-send-email-jeffy.chen-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
@ 2017-06-21 10:01 ` Jeffy Chen
[not found] ` <1498039313-24220-3-git-send-email-jeffy.chen-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
1 sibling, 1 reply; 8+ messages in thread
From: Jeffy Chen @ 2017-06-21 10:01 UTC (permalink / raw)
To: linux-kernel
Cc: briannorris, dmitry.torokhov, dianders, Jeffy Chen, devicetree,
Mark Brown, linux-spi, Rob Herring, Mark Rutland
Update document devicetree bindings to support "wakeup-source" property.
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
---
Changes in v3: None
Documentation/devicetree/bindings/spi/spi-bus.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/spi/spi-bus.txt b/Documentation/devicetree/bindings/spi/spi-bus.txt
index 1f6e86f..0fa1ccf 100644
--- a/Documentation/devicetree/bindings/spi/spi-bus.txt
+++ b/Documentation/devicetree/bindings/spi/spi-bus.txt
@@ -77,6 +77,7 @@ All slave nodes can contain the following optional properties:
Defaults to 1 if not present.
- spi-rx-delay-us - Microsecond delay after a read transfer.
- spi-tx-delay-us - Microsecond delay after a write transfer.
+- wakeup-source - Device can be used as a wakeup source.
Some SPI controllers and devices support Dual and Quad SPI transfer mode.
It allows data in the SPI system to be transferred using 2 wires (DUAL) or 4
--
2.1.4
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [RFC PATCH v3 1/6] spi: core: add support for wakeup-source dts property
2017-06-21 10:01 ` [RFC PATCH v3 1/6] spi: core: add support for wakeup-source dts property Jeffy Chen
@ 2017-06-21 10:52 ` Mark Brown
0 siblings, 0 replies; 8+ messages in thread
From: Mark Brown @ 2017-06-21 10:52 UTC (permalink / raw)
To: Jeffy Chen
Cc: linux-kernel, briannorris, dmitry.torokhov, dianders, linux-spi
[-- Attachment #1: Type: text/plain, Size: 227 bytes --]
On Wed, Jun 21, 2017 at 06:01:48PM +0800, Jeffy Chen wrote:
> Use generic wakeup-source property to enable spi device wakeup.
If this is a generic property shouldn't it be in the driver core rather
than individual subsystems?
[-- Attachment #2: signature.asc --]
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [RFC PATCH v3 2/6] dt-bindings: spi/core: add wakeup-source optional property
[not found] ` <1498039313-24220-3-git-send-email-jeffy.chen-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
@ 2017-06-26 16:00 ` Rob Herring
2017-06-26 16:40 ` Dmitry Torokhov
0 siblings, 1 reply; 8+ messages in thread
From: Rob Herring @ 2017-06-26 16:00 UTC (permalink / raw)
To: Jeffy Chen
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA,
briannorris-F7+t8E8rja9g9hUCZPvPmw,
dmitry.torokhov-Re5JQEeQqe8AvxtiuMwx3w,
dianders-F7+t8E8rja9g9hUCZPvPmw,
devicetree-u79uwXL29TY76Z2rM5mHXA, Mark Brown,
linux-spi-u79uwXL29TY76Z2rM5mHXA, Mark Rutland
On Wed, Jun 21, 2017 at 06:01:49PM +0800, Jeffy Chen wrote:
> Update document devicetree bindings to support "wakeup-source" property.
>
> Signed-off-by: Jeffy Chen <jeffy.chen-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
> ---
>
> Changes in v3: None
>
> Documentation/devicetree/bindings/spi/spi-bus.txt | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/Documentation/devicetree/bindings/spi/spi-bus.txt b/Documentation/devicetree/bindings/spi/spi-bus.txt
> index 1f6e86f..0fa1ccf 100644
> --- a/Documentation/devicetree/bindings/spi/spi-bus.txt
> +++ b/Documentation/devicetree/bindings/spi/spi-bus.txt
> @@ -77,6 +77,7 @@ All slave nodes can contain the following optional properties:
> Defaults to 1 if not present.
> - spi-rx-delay-us - Microsecond delay after a read transfer.
> - spi-tx-delay-us - Microsecond delay after a write transfer.
> +- wakeup-source - Device can be used as a wakeup source.
wakeup-source is valid for any device with an interrupts property
already, so I don't think this is necessary.
Rob
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [RFC PATCH v3 2/6] dt-bindings: spi/core: add wakeup-source optional property
2017-06-26 16:00 ` Rob Herring
@ 2017-06-26 16:40 ` Dmitry Torokhov
2017-06-27 2:04 ` jeffy
0 siblings, 1 reply; 8+ messages in thread
From: Dmitry Torokhov @ 2017-06-26 16:40 UTC (permalink / raw)
To: Rob Herring
Cc: Jeffy Chen, linux-kernel-u79uwXL29TY76Z2rM5mHXA,
briannorris-F7+t8E8rja9g9hUCZPvPmw,
dianders-F7+t8E8rja9g9hUCZPvPmw,
devicetree-u79uwXL29TY76Z2rM5mHXA, Mark Brown,
linux-spi-u79uwXL29TY76Z2rM5mHXA, Mark Rutland
On Mon, Jun 26, 2017 at 11:00:11AM -0500, Rob Herring wrote:
> On Wed, Jun 21, 2017 at 06:01:49PM +0800, Jeffy Chen wrote:
> > Update document devicetree bindings to support "wakeup-source" property.
> >
> > Signed-off-by: Jeffy Chen <jeffy.chen-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
> > ---
> >
> > Changes in v3: None
> >
> > Documentation/devicetree/bindings/spi/spi-bus.txt | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/Documentation/devicetree/bindings/spi/spi-bus.txt b/Documentation/devicetree/bindings/spi/spi-bus.txt
> > index 1f6e86f..0fa1ccf 100644
> > --- a/Documentation/devicetree/bindings/spi/spi-bus.txt
> > +++ b/Documentation/devicetree/bindings/spi/spi-bus.txt
> > @@ -77,6 +77,7 @@ All slave nodes can contain the following optional properties:
> > Defaults to 1 if not present.
> > - spi-rx-delay-us - Microsecond delay after a read transfer.
> > - spi-tx-delay-us - Microsecond delay after a write transfer.
> > +- wakeup-source - Device can be used as a wakeup source.
>
> wakeup-source is valid for any device with an interrupts property
> already, so I don't think this is necessary.
Do you mean it is not necessary on SPI level or not necessary at all? Or
you disagree with wording? Because we do need a way to say that on given
platform the device is supposed to be configured as a wakeup source.
Thanks.
--
Dmitry
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [RFC PATCH v3 2/6] dt-bindings: spi/core: add wakeup-source optional property
2017-06-26 16:40 ` Dmitry Torokhov
@ 2017-06-27 2:04 ` jeffy
2017-06-30 14:44 ` Rob Herring
0 siblings, 1 reply; 8+ messages in thread
From: jeffy @ 2017-06-27 2:04 UTC (permalink / raw)
To: Dmitry Torokhov, Rob Herring
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA,
briannorris-F7+t8E8rja9g9hUCZPvPmw,
dianders-F7+t8E8rja9g9hUCZPvPmw,
devicetree-u79uwXL29TY76Z2rM5mHXA, Mark Brown,
linux-spi-u79uwXL29TY76Z2rM5mHXA, Mark Rutland
Hi Rob,
On 06/27/2017 12:40 AM, Dmitry Torokhov wrote:
> On Mon, Jun 26, 2017 at 11:00:11AM -0500, Rob Herring wrote:
>> On Wed, Jun 21, 2017 at 06:01:49PM +0800, Jeffy Chen wrote:
>>> Update document devicetree bindings to support "wakeup-source" property.
>>>
>>> Signed-off-by: Jeffy Chen <jeffy.chen-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
>>> ---
>>>
>>> Changes in v3: None
>>>
>>> Documentation/devicetree/bindings/spi/spi-bus.txt | 1 +
>>> 1 file changed, 1 insertion(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/spi/spi-bus.txt b/Documentation/devicetree/bindings/spi/spi-bus.txt
>>> index 1f6e86f..0fa1ccf 100644
>>> --- a/Documentation/devicetree/bindings/spi/spi-bus.txt
>>> +++ b/Documentation/devicetree/bindings/spi/spi-bus.txt
>>> @@ -77,6 +77,7 @@ All slave nodes can contain the following optional properties:
>>> Defaults to 1 if not present.
>>> - spi-rx-delay-us - Microsecond delay after a read transfer.
>>> - spi-tx-delay-us - Microsecond delay after a write transfer.
>>> +- wakeup-source - Device can be used as a wakeup source.
>>
>> wakeup-source is valid for any device with an interrupts property
>> already, so I don't think this is necessary.
i saw http://lkml.iu.edu/hypermail/linux/kernel/1510.2/04553.html add a
Documentation/devicetree/bindings/power/wakeup-source.txt for this, but
that serial didn't remove all wakeup-source property from other
bindings, but standardize them, for example:
71a0151 Documentation: devicetree: fix reference to legacy wakeup properties
+++ b/Documentation/devicetree/bindings/input/gpio-keys.txt
@@ -24,6 +24,7 @@ Optional subnode-properties:
- debounce-interval: Debouncing interval time in milliseconds.
If not specified defaults to 5.
- wakeup-source: Boolean, button can wake-up the system.
+ (Legacy property supported: "gpio-key,wakeup")
>
> Do you mean it is not necessary on SPI level or not necessary at all? Or
> you disagree with wording? Because we do need a way to say that on given
> platform the device is supposed to be configured as a wakeup source.
>
> Thanks.
>
Hi guys,
Mark Brown suggested to put wakeup-source support in some common place
instead of sub drivers, should we do that?
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [RFC PATCH v3 2/6] dt-bindings: spi/core: add wakeup-source optional property
2017-06-27 2:04 ` jeffy
@ 2017-06-30 14:44 ` Rob Herring
0 siblings, 0 replies; 8+ messages in thread
From: Rob Herring @ 2017-06-30 14:44 UTC (permalink / raw)
To: jeffy
Cc: Dmitry Torokhov, linux-kernel, Brian Norris, Doug Anderson,
devicetree, Mark Brown, linux-spi, Mark Rutland
On Mon, Jun 26, 2017 at 9:04 PM, jeffy <jeffy.chen@rock-chips.com> wrote:
> Hi Rob,
>
> On 06/27/2017 12:40 AM, Dmitry Torokhov wrote:
>>
>> On Mon, Jun 26, 2017 at 11:00:11AM -0500, Rob Herring wrote:
>>>
>>> On Wed, Jun 21, 2017 at 06:01:49PM +0800, Jeffy Chen wrote:
>>>>
>>>> Update document devicetree bindings to support "wakeup-source" property.
>>>>
>>>> Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
>>>> ---
>>>>
>>>> Changes in v3: None
>>>>
>>>> Documentation/devicetree/bindings/spi/spi-bus.txt | 1 +
>>>> 1 file changed, 1 insertion(+)
>>>>
>>>> diff --git a/Documentation/devicetree/bindings/spi/spi-bus.txt
>>>> b/Documentation/devicetree/bindings/spi/spi-bus.txt
>>>> index 1f6e86f..0fa1ccf 100644
>>>> --- a/Documentation/devicetree/bindings/spi/spi-bus.txt
>>>> +++ b/Documentation/devicetree/bindings/spi/spi-bus.txt
>>>> @@ -77,6 +77,7 @@ All slave nodes can contain the following optional
>>>> properties:
>>>> Defaults to 1 if not present.
>>>> - spi-rx-delay-us - Microsecond delay after a read transfer.
>>>> - spi-tx-delay-us - Microsecond delay after a write transfer.
>>>> +- wakeup-source - Device can be used as a wakeup source.
>>>
>>>
>>> wakeup-source is valid for any device with an interrupts property
>>> already, so I don't think this is necessary.
>
> i saw http://lkml.iu.edu/hypermail/linux/kernel/1510.2/04553.html add a
> Documentation/devicetree/bindings/power/wakeup-source.txt for this, but that
> serial didn't remove all wakeup-source property from other bindings, but
> standardize them, for example:
> 71a0151 Documentation: devicetree: fix reference to legacy wakeup properties
>
> +++ b/Documentation/devicetree/bindings/input/gpio-keys.txt
> @@ -24,6 +24,7 @@ Optional subnode-properties:
> - debounce-interval: Debouncing interval time in milliseconds.
> If not specified defaults to 5.
> - wakeup-source: Boolean, button can wake-up the system.
> + (Legacy property supported: "gpio-key,wakeup")
>
>>
>> Do you mean it is not necessary on SPI level or not necessary at all? Or
>> you disagree with wording? Because we do need a way to say that on given
>> platform the device is supposed to be configured as a wakeup source.
>>
>> Thanks.
>>
>
> Hi guys,
>
> Mark Brown suggested to put wakeup-source support in some common place
> instead of sub drivers, should we do that?
As you point out, it is already documented in a common place. In SPI
makes no sense. Are you going to document in I2C, simple-bus, USB,
etc. as well?
wakeup-source is really a property of the system (the upstream
interrupt controller in particular), so it doesn't really need to be
documented per device.
Rob
^ permalink raw reply [flat|nested] 8+ messages in thread
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2017-06-21 10:01 [RFC PATCH v3 0/6] Report wakeup events in cros_ec_keyb and make cros-ec-spi wakeup optional Jeffy Chen
[not found] ` <1498039313-24220-1-git-send-email-jeffy.chen-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2017-06-21 10:01 ` [RFC PATCH v3 1/6] spi: core: add support for wakeup-source dts property Jeffy Chen
2017-06-21 10:52 ` Mark Brown
2017-06-21 10:01 ` [RFC PATCH v3 2/6] dt-bindings: spi/core: add wakeup-source optional property Jeffy Chen
[not found] ` <1498039313-24220-3-git-send-email-jeffy.chen-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2017-06-26 16:00 ` Rob Herring
2017-06-26 16:40 ` Dmitry Torokhov
2017-06-27 2:04 ` jeffy
2017-06-30 14:44 ` Rob Herring
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