Re: [PATCH v3 1/7 RESEND] PM / Domains: Add a note about power domain subdomains
On Wed, Jan 14, 2015 at 3:12 PM, Marek Szyprowski
m.szyprow...@samsung.com wrote:
This patch adds a note on defining subdomains to generic PM domain
binding documentation to let power domain providers use common approach
for defining power domain hierarchy.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Acked-by: Geert Uytterhoeven geert+rene...@glider.be
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say programmer or something like that.
-- Linus Torvalds
--
To unsubscribe from this list: send the line unsubscribe devicetree in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v3 1/7 RESEND] PM / Domains: Add a note about power domain subdomains
On 14 January 2015 at 15:12, Marek Szyprowski m.szyprow...@samsung.com wrote:
This patch adds a note on defining subdomains to generic PM domain
binding documentation to let power domain providers use common approach
for defining power domain hierarchy.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
Reviewed-by: Ulf Hansson ulf.hans...@linaro.org
Kind regards
Uffe
---
RESEND version:
- fixed spelling mistakes, thanks go to Geert!
---
.../devicetree/bindings/power/power_domain.txt | 29
++
1 file changed, 29 insertions(+)
diff --git a/Documentation/devicetree/bindings/power/power_domain.txt
b/Documentation/devicetree/bindings/power/power_domain.txt
index 98c1667..eeea45b 100644
--- a/Documentation/devicetree/bindings/power/power_domain.txt
+++ b/Documentation/devicetree/bindings/power/power_domain.txt
@@ -19,6 +19,16 @@ Required properties:
providing multiple PM domains (e.g. power controllers), but can be any
value
as specified by device tree binding documentation of particular provider.
+Optional properties:
+ - power-domains : A phandle and PM domain specifier as defined by bindings
of
+ the power controller specified by phandle.
+ Some power domains might be powered from another power domain (or have
+ other hardware specific dependencies). For representing such dependency
+ a standard PM domain consumer binding is used. When provided, all domains
+ created by the given provider should be subdomains of the domain
+ specified by this binding. More details about power domain specifier are
+ available in the next section.
+
Example:
power: power-controller@1234 {
@@ -30,6 +40,25 @@ Example:
The node above defines a power controller that is a PM domain provider and
expects one cell as its phandle argument.
+Example 2:
+
+ parent: power-controller@1234 {
+ compatible = foo,power-controller;
+ reg = 0x1234 0x1000;
+ #power-domain-cells = 1;
+ };
+
+ child: power-controller@1234 {
+ compatible = foo,power-controller;
+ reg = 0x12341000 0x1000;
+ power-domains = parent 0;
+ #power-domain-cells = 1;
+ };
+
+The nodes above define two power controllers: 'parent' and 'child'.
+Domains created by the 'child' power controller are subdomains of '0' power
+domain provided by the 'parent' power controller.
+
==PM domain consumers==
Required properties:
--
1.9.2
--
To unsubscribe from this list: send the line unsubscribe devicetree in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH v3 1/7 RESEND] PM / Domains: Add a note about power domain subdomains
This patch adds a note on defining subdomains to generic PM domain
binding documentation to let power domain providers use common approach
for defining power domain hierarchy.
Signed-off-by: Marek Szyprowski m.szyprow...@samsung.com
---
RESEND version:
- fixed spelling mistakes, thanks go to Geert!
---
.../devicetree/bindings/power/power_domain.txt | 29 ++
1 file changed, 29 insertions(+)
diff --git a/Documentation/devicetree/bindings/power/power_domain.txt
b/Documentation/devicetree/bindings/power/power_domain.txt
index 98c1667..eeea45b 100644
--- a/Documentation/devicetree/bindings/power/power_domain.txt
+++ b/Documentation/devicetree/bindings/power/power_domain.txt
@@ -19,6 +19,16 @@ Required properties:
providing multiple PM domains (e.g. power controllers), but can be any value
as specified by device tree binding documentation of particular provider.
+Optional properties:
+ - power-domains : A phandle and PM domain specifier as defined by bindings of
+ the power controller specified by phandle.
+ Some power domains might be powered from another power domain (or have
+ other hardware specific dependencies). For representing such dependency
+ a standard PM domain consumer binding is used. When provided, all domains
+ created by the given provider should be subdomains of the domain
+ specified by this binding. More details about power domain specifier are
+ available in the next section.
+
Example:
power: power-controller@1234 {
@@ -30,6 +40,25 @@ Example:
The node above defines a power controller that is a PM domain provider and
expects one cell as its phandle argument.
+Example 2:
+
+ parent: power-controller@1234 {
+ compatible = foo,power-controller;
+ reg = 0x1234 0x1000;
+ #power-domain-cells = 1;
+ };
+
+ child: power-controller@1234 {
+ compatible = foo,power-controller;
+ reg = 0x12341000 0x1000;
+ power-domains = parent 0;
+ #power-domain-cells = 1;
+ };
+
+The nodes above define two power controllers: 'parent' and 'child'.
+Domains created by the 'child' power controller are subdomains of '0' power
+domain provided by the 'parent' power controller.
+
==PM domain consumers==
Required properties:
--
1.9.2
--
To unsubscribe from this list: send the line unsubscribe devicetree in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
