| Message ID | 1413467997-32131-1-git-send-email-lorenzo.pieralisi@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> writes: > On some platforms the device tree bindings must provide the kernel > with a status flag for idle states, that defines whether the idle > state is operational or not in the current configuration. > > This patch adds a status property to the ARM idle states compliant > with ePAPR v1.1 and updates the DT parsing code accordingly. > > Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> For the series: Acked-by: Kevin Hilman <khilman@linaro.org> Kevin
On Mon, Oct 20, 2014 at 10:38:02PM +0100, Kevin Hilman wrote: > Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> writes: > > > On some platforms the device tree bindings must provide the kernel > > with a status flag for idle states, that defines whether the idle > > state is operational or not in the current configuration. > > > > This patch adds a status property to the ARM idle states compliant > > with ePAPR v1.1 and updates the DT parsing code accordingly. > > > > Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> > > For the series: > > Acked-by: Kevin Hilman <khilman@linaro.org> Thanks ! I will queue it for 3.19 then. Lorenzo
On 10/21/2014 06:20 PM, Lorenzo Pieralisi wrote: > On Mon, Oct 20, 2014 at 10:38:02PM +0100, Kevin Hilman wrote: >> Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> writes: >> >>> On some platforms the device tree bindings must provide the kernel >>> with a status flag for idle states, that defines whether the idle >>> state is operational or not in the current configuration. >>> >>> This patch adds a status property to the ARM idle states compliant >>> with ePAPR v1.1 and updates the DT parsing code accordingly. >>> >>> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> >> >> For the series: >> >> Acked-by: Kevin Hilman <khilman@linaro.org> > > Thanks ! I will queue it for 3.19 then. Applied to my tree for 3.19. Thanks -- Daniel
On Mon, Nov 10, 2014 at 07:45:32AM +0000, Daniel Lezcano wrote: > On 10/21/2014 06:20 PM, Lorenzo Pieralisi wrote: > > On Mon, Oct 20, 2014 at 10:38:02PM +0100, Kevin Hilman wrote: > >> Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> writes: > >> > >>> On some platforms the device tree bindings must provide the kernel > >>> with a status flag for idle states, that defines whether the idle > >>> state is operational or not in the current configuration. > >>> > >>> This patch adds a status property to the ARM idle states compliant > >>> with ePAPR v1.1 and updates the DT parsing code accordingly. > >>> > >>> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> > >> > >> For the series: > >> > >> Acked-by: Kevin Hilman <khilman@linaro.org> > > > > Thanks ! I will queue it for 3.19 then. > > Applied to my tree for 3.19. > > Thanks > -- Daniel Thank you ! Lorenzo
diff --git a/Documentation/devicetree/bindings/arm/idle-states.txt b/Documentation/devicetree/bindings/arm/idle-states.txt index 37375c7..d8ab4b9 100644 --- a/Documentation/devicetree/bindings/arm/idle-states.txt +++ b/Documentation/devicetree/bindings/arm/idle-states.txt @@ -317,6 +317,20 @@ follows: In such systems entry-latency-us + exit-latency-us will exceed wakeup-latency-us by this duration. + - status: + Usage: Optional + Value type: <string> + Definition: A standard device tree property [5] that indicates + the operational status of an idle-state. + If present, it shall be: + "okay": to indicate that the idle state is + operational. + "disabled": to indicate that the idle state has + been disabled in firmware so it is not + operational. + If property is not present the idle-state must be + considered operational. + In addition to the properties listed above, a state node may require additional properties specifics to the entry-method defined in the idle-states node, please refer to the entry-method bindings diff --git a/drivers/cpuidle/dt_idle_states.c b/drivers/cpuidle/dt_idle_states.c index 52f4d11..22840f4 100644 --- a/drivers/cpuidle/dt_idle_states.c +++ b/drivers/cpuidle/dt_idle_states.c @@ -169,6 +169,9 @@ int dt_init_idle_driver(struct cpuidle_driver *drv, if (!state_node) break; + if (!of_device_is_available(state_node)) + continue; + if (!idle_state_valid(state_node, i, cpumask)) { pr_warn("%s idle state not valid, bailing out\n", state_node->full_name);
On some platforms the device tree bindings must provide the kernel with a status flag for idle states, that defines whether the idle state is operational or not in the current configuration. This patch adds a status property to the ARM idle states compliant with ePAPR v1.1 and updates the DT parsing code accordingly. Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> --- Documentation/devicetree/bindings/arm/idle-states.txt | 14 ++++++++++++++ drivers/cpuidle/dt_idle_states.c | 3 +++ 2 files changed, 17 insertions(+)