From 31e54086dd7bb86ad40f1d76a9063f2a95866b87 Mon Sep 17 00:00:00 2001
From: Pawel Moll <pawel.moll@arm.com>
Date: Mon, 24 Sep 2012 18:56:54 +0100
Subject: regulator: Versatile Express regulator driver
Implementation of the regulator framework driver for the
Versatile Express voltage control. Devices without
voltage constraints (ie. "regulator-[min|max]-microvolt"
properties in the DT node) are treated as fixed (or rather
read-only) regulators.
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
.../devicetree/bindings/regulator/vexpress.txt | 32 ++++++++++++++++++++++
1 file changed, 32 insertions(+)
create mode 100644 Documentation/devicetree/bindings/regulator/vexpress.txt
(limited to 'Documentation')
diff --git a/Documentation/devicetree/bindings/regulator/vexpress.txt b/Documentation/devicetree/bindings/regulator/vexpress.txt
new file mode 100644
index 000000000000..d775f72487aa
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/vexpress.txt
@@ -0,0 +1,32 @@
+Versatile Express voltage regulators
+------------------------------------
+
+Requires node properties:
+- "compatible" value: "arm,vexpress-volt"
+- "arm,vexpress-sysreg,func" when controlled via vexpress-sysreg
+ (see Documentation/devicetree/bindings/arm/vexpress-sysreg.txt
+ for more details)
+
+Required regulator properties:
+- "regulator-name"
+- "regulator-always-on"
+
+Optional regulator properties:
+- "regulator-min-microvolt"
+- "regulator-max-microvolt"
+
+See Documentation/devicetree/bindings/regulator/regulator.txt
+for more details about the regulator properties.
+
+When no "regulator-[min|max]-microvolt" properties are defined,
+the device is treated as fixed (or rather "read-only") regulator.
+
+Example:
+ volt@0 {
+ compatible = "arm,vexpress-volt";
+ arm,vexpress-sysreg,func = <2 0>;
+ regulator-name = "Cores";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <1050000>;
+ regulator-always-on;
+ };
--
cgit v1.2.1
From 006694d099e86e5a928fb39bdea280ab42c9d59c Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 15 Oct 2012 14:16:59 +0100
Subject: regulator: gpio-regulator: Allow use of GPIO controlled regulators
though DT
Here we provide the GPIO Regulator driver with Device Tree capability, so
that when a platform is booting with DT instead of platform data we can
still make full use of it.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
.../bindings/regulator/gpio-regulator.txt | 36 ++++++++++++++++++++++
1 file changed, 36 insertions(+)
create mode 100644 Documentation/devicetree/bindings/regulator/gpio-regulator.txt
(limited to 'Documentation')
diff --git a/Documentation/devicetree/bindings/regulator/gpio-regulator.txt b/Documentation/devicetree/bindings/regulator/gpio-regulator.txt
new file mode 100644
index 000000000000..3703be2ab821
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/gpio-regulator.txt
@@ -0,0 +1,36 @@
+GPIO controlled regulators
+
+Required properties:
+- compatible : Must be "regulator-gpio".
+
+Optional properties:
+- gpio-enable : GPIO to use to enable/disable the regulator.
+- gpios : GPIO group used to control voltage.
+- states : Selection of available voltages and GPIO configs.
+- startup-delay-us : Startup time in microseconds.
+- enable-active-high : Polarity of GPIO is active high (default is low).
+
+Any property defined as part of the core regulator binding defined in
+regulator.txt can also be used.
+
+Example:
+
+ mmciv: gpio-regulator {
+ compatible = "regulator-gpio";
+
+ regulator-name = "mmci-gpio-supply";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <2600000>;
+ regulator-boot-on;
+
+ gpio-enable = <&gpio0 23 0x4>;
+ gpios = <&gpio0 24 0x4
+ &gpio0 25 0x4>;
+ states = <1800000 0x3
+ 2200000 0x2
+ 2600000 0x1
+ 2900000 0x0>;
+
+ startup-delay-us = <100000>;
+ enable-active-high;
+ };
--
cgit v1.2.1
From 45b6f8e8fc014fe404d155a657a04b25b861001d Mon Sep 17 00:00:00 2001
From: Qing Xu <qingx@marvell.com>
Date: Wed, 7 Nov 2012 18:09:53 +0800
Subject: regulator: max8925: support dt for regulator
Signed-off-by: Qing Xu <qingx@marvell.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
.../bindings/regulator/max8925-regulator.txt | 29 ++++++++++++++++++++++
1 file changed, 29 insertions(+)
create mode 100644 Documentation/devicetree/bindings/regulator/max8925-regulator.txt
(limited to 'Documentation')
diff --git a/Documentation/devicetree/bindings/regulator/max8925-regulator.txt b/Documentation/devicetree/bindings/regulator/max8925-regulator.txt
new file mode 100644
index 000000000000..073b41d90f2c
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/max8925-regulator.txt
@@ -0,0 +1,29 @@
+Max8925 Voltage regulators
+
+max8925 regulator device register is still handled by mfd_add_devices, not by
+of_xxx, so, it is not necessary to add compatible name. Also, those reg
+offset and id info is stored in mfd_cell(see max8925-core.c), as a result
+there is not private properties in dts.
+
+node's name should match with the definition in max8925_regulator_matches
+(see max8925-regulator.c)
+
+
+Optional properties:
+- Any optional property defined in bindings/regulator/regulator.txt
+
+
+Example:
+
+
+ regulators {
+ SDV1 {
+ regulator-min-microvolt = <637500>;
+ regulator-max-microvolt = <1425000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ...
+ ...
+ }
--
cgit v1.2.1
From 560615ef8b95bb9aa4ea77ccaf3b2114dc93206f Mon Sep 17 00:00:00 2001
From: Qing Xu <qingx@marvell.com>
Date: Thu, 8 Nov 2012 10:31:32 +0800
Subject: regulator: max8925: update dt regulator binding doc
remove linux specific references, enumerates all supported
regulators
Signed-off-by: Qing Xu <qingx@marvell.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
.../bindings/regulator/max8925-regulator.txt | 51 +++++++++++++---------
1 file changed, 31 insertions(+), 20 deletions(-)
(limited to 'Documentation')
diff --git a/Documentation/devicetree/bindings/regulator/max8925-regulator.txt b/Documentation/devicetree/bindings/regulator/max8925-regulator.txt
index 073b41d90f2c..0057695aae8f 100644
--- a/Documentation/devicetree/bindings/regulator/max8925-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/max8925-regulator.txt
@@ -1,29 +1,40 @@
Max8925 Voltage regulators
-max8925 regulator device register is still handled by mfd_add_devices, not by
-of_xxx, so, it is not necessary to add compatible name. Also, those reg
-offset and id info is stored in mfd_cell(see max8925-core.c), as a result
-there is not private properties in dts.
-
-node's name should match with the definition in max8925_regulator_matches
-(see max8925-regulator.c)
-
+Required nodes:
+-nodes:
+ - SDV1 for SDV SDV1
+ - SDV2 for SDV SDV2
+ - SDV3 for SDV SDV3
+ - LDO1 for LDO LDO1
+ - LDO2 for LDO LDO2
+ - LDO3 for LDO LDO3
+ - LDO4 for LDO LDO4
+ - LDO5 for LDO LDO5
+ - LDO6 for LDO LDO6
+ - LDO7 for LDO LDO7
+ - LDO8 for LDO LDO8
+ - LDO9 for LDO LDO9
+ - LDO10 for LDO LDO10
+ - LDO11 for LDO LDO11
+ - LDO12 for LDO LDO12
+ - LDO13 for LDO LDO13
+ - LDO14 for LDO LDO14
+ - LDO15 for LDO LDO15
+ - LDO16 for LDO LDO16
+ - LDO17 for LDO LDO17
+ - LDO18 for LDO LDO18
+ - LDO19 for LDO LDO19
+ - LDO20 for LDO LDO20
Optional properties:
- Any optional property defined in bindings/regulator/regulator.txt
-
Example:
+ SDV1 {
+ regulator-min-microvolt = <637500>;
+ regulator-max-microvolt = <1425000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
- regulators {
- SDV1 {
- regulator-min-microvolt = <637500>;
- regulator-max-microvolt = <1425000>;
- regulator-boot-on;
- regulator-always-on;
- };
-
- ...
- ...
- }
--
cgit v1.2.1
From dea05fe66edb4540a53ed6623794c4978315256a Mon Sep 17 00:00:00 2001
From: Frank Li <Frank.Li@freescale.com>
Date: Mon, 12 Nov 2012 17:58:28 +0800
Subject: regulator: gpio-regulator: doc: Fix wrong key gpio-enable
Wrong description in binding document.
Doc use "gpio-enable", but code use "enable-gpio"
In drivers/regulator/gpio-regulator.c
config->enable_gpio = of_get_named_gpio(np, "enable-gpio", 0);
Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
Documentation/devicetree/bindings/regulator/gpio-regulator.txt | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
(limited to 'Documentation')
diff --git a/Documentation/devicetree/bindings/regulator/gpio-regulator.txt b/Documentation/devicetree/bindings/regulator/gpio-regulator.txt
index 3703be2ab821..f71f8083c2ae 100644
--- a/Documentation/devicetree/bindings/regulator/gpio-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/gpio-regulator.txt
@@ -4,7 +4,7 @@ Required properties:
- compatible : Must be "regulator-gpio".
Optional properties:
-- gpio-enable : GPIO to use to enable/disable the regulator.
+- enable-gpio : GPIO to use to enable/disable the regulator.
- gpios : GPIO group used to control voltage.
- states : Selection of available voltages and GPIO configs.
- startup-delay-us : Startup time in microseconds.
@@ -23,7 +23,7 @@ Example:
regulator-max-microvolt = <2600000>;
regulator-boot-on;
- gpio-enable = <&gpio0 23 0x4>;
+ enable-gpio = <&gpio0 23 0x4>;
gpios = <&gpio0 24 0x4
&gpio0 25 0x4>;
states = <1800000 0x3
--
cgit v1.2.1
From 216f2b9c95ac6e4f00b08df807bc4454434a9afb Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 14 Nov 2012 11:51:36 +0000
Subject: regulator: gpio-regulator: Catch 'no states property' misuse
A selection of voltage or current values (AKA states) should always
be specified when using a GPIO regulator. If there are no switchable
states then the fixed regulators should be used instead.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
Documentation/devicetree/bindings/regulator/gpio-regulator.txt | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'Documentation')
diff --git a/Documentation/devicetree/bindings/regulator/gpio-regulator.txt b/Documentation/devicetree/bindings/regulator/gpio-regulator.txt
index f71f8083c2ae..63c659800c03 100644
--- a/Documentation/devicetree/bindings/regulator/gpio-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/gpio-regulator.txt
@@ -2,11 +2,12 @@ GPIO controlled regulators
Required properties:
- compatible : Must be "regulator-gpio".
+- states : Selection of available voltages and GPIO configs.
+ if there are no states, then use a fixed regulator
Optional properties:
- enable-gpio : GPIO to use to enable/disable the regulator.
- gpios : GPIO group used to control voltage.
-- states : Selection of available voltages and GPIO configs.
- startup-delay-us : Startup time in microseconds.
- enable-active-high : Polarity of GPIO is active high (default is low).
--
cgit v1.2.1