* [PATCH v4 0/2] mfd: act8945a: add Active-semi ACT8945A PMIC MFD driver
@ 2016-01-13 3:55 ` Wenyou Yang
0 siblings, 0 replies; 9+ messages in thread
From: Wenyou Yang @ 2016-01-13 3:55 UTC (permalink / raw)
To: Lee Jones, Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell,
Kumar Gala
Cc: linux-kernel, Javier Martinez Canillas, devicetree,
linux-arm-kernel, Krzysztof Kozlowski, Nicolas Ferre,
Wenyou Yang
This patch set adds support for the Active-semi ACT8945A PMIC
MFD driver. It is a Multi Function Device with the following
subdevices:
- Regulator
- Charger
It is interfaced to the host controller using I2C interface,
ACT8945A is a child device of the I2C.
Changes in v4:
- add a space before .compatible.
- collect Reviewed-by from Krzysztof Kozlowski.
Changes in v3:
- fix the tabbing errors in Example.
- use "pmic@5b" label, not "act8945a@5b" in Example.
- collect Acked-by from Rob.
Changes in v2:
- add more help information in Kconfig.
- update the file header with short version license and author line.
- remove unused structure members (dev, i2c_client) of stuct act8945a_dev.
- use define "PLATFORM_DEVID_NONE" for mfd_add_devices(), instead of '-1'.
- use more explicit info to indicate the failure to add sub devices.
- remove the unnecessary print out.
- substitute MODULE_LICENSE("GPL") for MODULE_LICENSE("GPL v2").
- use more specific label in Example.
- add pmic and charger nodes in Example.
Wenyou Yang (2):
mfd: act8945a: add Active-semi ACT8945A PMIC MFD driver
mfd: add documentation for ACT8945A DT bindings
Documentation/devicetree/bindings/mfd/act8945a.txt | 82 +++++++++++++++
drivers/mfd/Kconfig | 11 ++
drivers/mfd/Makefile | 1 +
drivers/mfd/act8945a.c | 109 ++++++++++++++++++++
include/linux/mfd/act8945a.h | 21 ++++
5 files changed, 224 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/act8945a.txt
create mode 100644 drivers/mfd/act8945a.c
create mode 100644 include/linux/mfd/act8945a.h
--
1.7.9.5
^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH v4 0/2] mfd: act8945a: add Active-semi ACT8945A PMIC MFD driver
@ 2016-01-13 3:55 ` Wenyou Yang
0 siblings, 0 replies; 9+ messages in thread
From: Wenyou Yang @ 2016-01-13 3:55 UTC (permalink / raw)
To: Lee Jones, Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell,
Kumar Gala
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA, Javier Martinez Canillas,
devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
Krzysztof Kozlowski, Nicolas Ferre, Wenyou Yang
This patch set adds support for the Active-semi ACT8945A PMIC
MFD driver. It is a Multi Function Device with the following
subdevices:
- Regulator
- Charger
It is interfaced to the host controller using I2C interface,
ACT8945A is a child device of the I2C.
Changes in v4:
- add a space before .compatible.
- collect Reviewed-by from Krzysztof Kozlowski.
Changes in v3:
- fix the tabbing errors in Example.
- use "pmic@5b" label, not "act8945a@5b" in Example.
- collect Acked-by from Rob.
Changes in v2:
- add more help information in Kconfig.
- update the file header with short version license and author line.
- remove unused structure members (dev, i2c_client) of stuct act8945a_dev.
- use define "PLATFORM_DEVID_NONE" for mfd_add_devices(), instead of '-1'.
- use more explicit info to indicate the failure to add sub devices.
- remove the unnecessary print out.
- substitute MODULE_LICENSE("GPL") for MODULE_LICENSE("GPL v2").
- use more specific label in Example.
- add pmic and charger nodes in Example.
Wenyou Yang (2):
mfd: act8945a: add Active-semi ACT8945A PMIC MFD driver
mfd: add documentation for ACT8945A DT bindings
Documentation/devicetree/bindings/mfd/act8945a.txt | 82 +++++++++++++++
drivers/mfd/Kconfig | 11 ++
drivers/mfd/Makefile | 1 +
drivers/mfd/act8945a.c | 109 ++++++++++++++++++++
include/linux/mfd/act8945a.h | 21 ++++
5 files changed, 224 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/act8945a.txt
create mode 100644 drivers/mfd/act8945a.c
create mode 100644 include/linux/mfd/act8945a.h
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
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^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH v4 0/2] mfd: act8945a: add Active-semi ACT8945A PMIC MFD driver
@ 2016-01-13 3:55 ` Wenyou Yang
0 siblings, 0 replies; 9+ messages in thread
From: Wenyou Yang @ 2016-01-13 3:55 UTC (permalink / raw)
To: linux-arm-kernel
This patch set adds support for the Active-semi ACT8945A PMIC
MFD driver. It is a Multi Function Device with the following
subdevices:
- Regulator
- Charger
It is interfaced to the host controller using I2C interface,
ACT8945A is a child device of the I2C.
Changes in v4:
- add a space before .compatible.
- collect Reviewed-by from Krzysztof Kozlowski.
Changes in v3:
- fix the tabbing errors in Example.
- use "pmic at 5b" label, not "act8945a at 5b" in Example.
- collect Acked-by from Rob.
Changes in v2:
- add more help information in Kconfig.
- update the file header with short version license and author line.
- remove unused structure members (dev, i2c_client) of stuct act8945a_dev.
- use define "PLATFORM_DEVID_NONE" for mfd_add_devices(), instead of '-1'.
- use more explicit info to indicate the failure to add sub devices.
- remove the unnecessary print out.
- substitute MODULE_LICENSE("GPL") for MODULE_LICENSE("GPL v2").
- use more specific label in Example.
- add pmic and charger nodes in Example.
Wenyou Yang (2):
mfd: act8945a: add Active-semi ACT8945A PMIC MFD driver
mfd: add documentation for ACT8945A DT bindings
Documentation/devicetree/bindings/mfd/act8945a.txt | 82 +++++++++++++++
drivers/mfd/Kconfig | 11 ++
drivers/mfd/Makefile | 1 +
drivers/mfd/act8945a.c | 109 ++++++++++++++++++++
include/linux/mfd/act8945a.h | 21 ++++
5 files changed, 224 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/act8945a.txt
create mode 100644 drivers/mfd/act8945a.c
create mode 100644 include/linux/mfd/act8945a.h
--
1.7.9.5
^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH v4 1/2] mfd: act8945a: add Active-semi ACT8945A PMIC MFD driver
@ 2016-01-13 3:55 ` Wenyou Yang
0 siblings, 0 replies; 9+ messages in thread
From: Wenyou Yang @ 2016-01-13 3:55 UTC (permalink / raw)
To: Lee Jones, Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell,
Kumar Gala
Cc: linux-kernel, Javier Martinez Canillas, devicetree,
linux-arm-kernel, Krzysztof Kozlowski, Nicolas Ferre,
Wenyou Yang
This patch adds support for the Active-semi ACT8945A PMIC.
It is a Multi Function Device with the following subdevices:
- Regulator
- Charger
It is interfaced to the host controller using I2C interface,
ACT8945A is a child device of the I2C.
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
Changes in v4:
- add a space before .compatible.
- collect Reviewed-by from Krzysztof Kozlowski.
Changes in v3: None
Changes in v2:
- add more help information in Kconfig.
- update the file header with short version license and author line.
- remove unused structure members (dev, i2c_client) of stuct act8945a_dev.
- use define "PLATFORM_DEVID_NONE" for mfd_add_devices(), instead of '-1'.
- use more explicit info to indicate the failure to add sub devices.
- remove the unnecessary print out.
- substitute MODULE_LICENSE("GPL") for MODULE_LICENSE("GPL v2").
drivers/mfd/Kconfig | 11 +++++
drivers/mfd/Makefile | 1 +
drivers/mfd/act8945a.c | 109 ++++++++++++++++++++++++++++++++++++++++++
include/linux/mfd/act8945a.h | 21 ++++++++
4 files changed, 142 insertions(+)
create mode 100644 drivers/mfd/act8945a.c
create mode 100644 include/linux/mfd/act8945a.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 9ca66de..34375a9 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -18,6 +18,17 @@ config MFD_CS5535
This is the core driver for CS5535/CS5536 MFD functions. This is
necessary for using the board's GPIO and MFGPT functionality.
+config MFD_ACT8945A
+ bool "Active-semi ACT8945A"
+ select MFD_CORE
+ select REGMAP_I2C
+ depends on I2C && OF
+ help
+ Support for the ACT8945A PMIC from Active-semi. This device
+ features three step-down DC/DC converters and four low-dropout
+ linear regulators, along with a complete ActivePath battery
+ charger.
+
config MFD_AS3711
bool "AMS AS3711"
select MFD_CORE
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 0f230a6..2f1ca82 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -6,6 +6,7 @@
obj-$(CONFIG_MFD_88PM860X) += 88pm860x.o
obj-$(CONFIG_MFD_88PM800) += 88pm800.o 88pm80x.o
obj-$(CONFIG_MFD_88PM805) += 88pm805.o 88pm80x.o
+obj-$(CONFIG_MFD_ACT8945A) += act8945a.o
obj-$(CONFIG_MFD_SM501) += sm501.o
obj-$(CONFIG_MFD_ASIC3) += asic3.o tmio_core.o
obj-$(CONFIG_MFD_BCM590XX) += bcm590xx.o
diff --git a/drivers/mfd/act8945a.c b/drivers/mfd/act8945a.c
new file mode 100644
index 0000000..f5745b1
--- /dev/null
+++ b/drivers/mfd/act8945a.c
@@ -0,0 +1,109 @@
+/*
+ * MFD driver for Active-semi ACT8945a PMIC
+ *
+ * Copyright (C) 2015 Atmel Corporation.
+ *
+ * Author: Wenyou Yang <wenyou.yang@atmel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/i2c.h>
+#include <linux/mfd/act8945a.h>
+#include <linux/mfd/core.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/regmap.h>
+
+static const struct mfd_cell act8945a_devs[] = {
+ {
+ .name = "act8945a-pmic",
+ .of_compatible = "active-semi,act8945a-regulator",
+ },
+ {
+ .name = "act8945a-charger",
+ .of_compatible = "active-semi,act8945a-charger",
+ },
+};
+
+static const struct regmap_config act8945a_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int act8945a_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct act8945a_dev *act8945a;
+ int ret;
+
+ act8945a = devm_kzalloc(&i2c->dev, sizeof(*act8945a), GFP_KERNEL);
+ if (!act8945a)
+ return -ENOMEM;
+
+ i2c_set_clientdata(i2c, act8945a);
+
+ act8945a->regmap = devm_regmap_init_i2c(i2c, &act8945a_regmap_config);
+ if (IS_ERR(act8945a->regmap)) {
+ ret = PTR_ERR(act8945a->regmap);
+ dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
+ return ret;
+ }
+
+ ret = mfd_add_devices(&i2c->dev, PLATFORM_DEVID_NONE, act8945a_devs,
+ ARRAY_SIZE(act8945a_devs), NULL, 0, NULL);
+ if (ret) {
+ dev_err(&i2c->dev, "Failed to add sub devices\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int act8945a_i2c_remove(struct i2c_client *i2c)
+{
+ mfd_remove_devices(&i2c->dev);
+
+ return 0;
+}
+
+static const struct i2c_device_id act8945a_i2c_id[] = {
+ { "act8945a", 0 },
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, act8945a_i2c_id);
+
+static const struct of_device_id act8945a_of_match[] = {
+ { .compatible = "active-semi,act8945a", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, act8945a_of_match);
+
+static struct i2c_driver act8945a_i2c_driver = {
+ .driver = {
+ .name = "act8945a",
+ .of_match_table = of_match_ptr(act8945a_of_match),
+ },
+ .probe = act8945a_i2c_probe,
+ .remove = act8945a_i2c_remove,
+ .id_table = act8945a_i2c_id,
+};
+
+static int __init act8945a_i2c_init(void)
+{
+ return i2c_add_driver(&act8945a_i2c_driver);
+}
+subsys_initcall(act8945a_i2c_init);
+
+static void __exit act8945a_i2c_exit(void)
+{
+ i2c_del_driver(&act8945a_i2c_driver);
+}
+module_exit(act8945a_i2c_exit);
+
+MODULE_DESCRIPTION("ACT8945A PMIC multi-function driver");
+MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/mfd/act8945a.h b/include/linux/mfd/act8945a.h
new file mode 100644
index 0000000..5f67009
--- /dev/null
+++ b/include/linux/mfd/act8945a.h
@@ -0,0 +1,21 @@
+/*
+ * MFD driver for Active-semi ACT8945a PMIC
+ *
+ * Copyright (C) 2015 Atmel Corporation.
+ *
+ * Author: Wenyou Yang <wenyou.yang@atmel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _LINUX_MFD_ACT8945A_H
+#define _LINUX_MFD_ACT8945A_H
+
+struct act8945a_dev {
+ struct regmap *regmap;
+};
+
+#endif
--
1.7.9.5
^ permalink raw reply related [flat|nested] 9+ messages in thread
* [PATCH v4 1/2] mfd: act8945a: add Active-semi ACT8945A PMIC MFD driver
@ 2016-01-13 3:55 ` Wenyou Yang
0 siblings, 0 replies; 9+ messages in thread
From: Wenyou Yang @ 2016-01-13 3:55 UTC (permalink / raw)
To: Lee Jones, Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell,
Kumar Gala
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA, Javier Martinez Canillas,
devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
Krzysztof Kozlowski, Nicolas Ferre, Wenyou Yang
This patch adds support for the Active-semi ACT8945A PMIC.
It is a Multi Function Device with the following subdevices:
- Regulator
- Charger
It is interfaced to the host controller using I2C interface,
ACT8945A is a child device of the I2C.
Signed-off-by: Wenyou Yang <wenyou.yang-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
---
Changes in v4:
- add a space before .compatible.
- collect Reviewed-by from Krzysztof Kozlowski.
Changes in v3: None
Changes in v2:
- add more help information in Kconfig.
- update the file header with short version license and author line.
- remove unused structure members (dev, i2c_client) of stuct act8945a_dev.
- use define "PLATFORM_DEVID_NONE" for mfd_add_devices(), instead of '-1'.
- use more explicit info to indicate the failure to add sub devices.
- remove the unnecessary print out.
- substitute MODULE_LICENSE("GPL") for MODULE_LICENSE("GPL v2").
drivers/mfd/Kconfig | 11 +++++
drivers/mfd/Makefile | 1 +
drivers/mfd/act8945a.c | 109 ++++++++++++++++++++++++++++++++++++++++++
include/linux/mfd/act8945a.h | 21 ++++++++
4 files changed, 142 insertions(+)
create mode 100644 drivers/mfd/act8945a.c
create mode 100644 include/linux/mfd/act8945a.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 9ca66de..34375a9 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -18,6 +18,17 @@ config MFD_CS5535
This is the core driver for CS5535/CS5536 MFD functions. This is
necessary for using the board's GPIO and MFGPT functionality.
+config MFD_ACT8945A
+ bool "Active-semi ACT8945A"
+ select MFD_CORE
+ select REGMAP_I2C
+ depends on I2C && OF
+ help
+ Support for the ACT8945A PMIC from Active-semi. This device
+ features three step-down DC/DC converters and four low-dropout
+ linear regulators, along with a complete ActivePath battery
+ charger.
+
config MFD_AS3711
bool "AMS AS3711"
select MFD_CORE
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 0f230a6..2f1ca82 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -6,6 +6,7 @@
obj-$(CONFIG_MFD_88PM860X) += 88pm860x.o
obj-$(CONFIG_MFD_88PM800) += 88pm800.o 88pm80x.o
obj-$(CONFIG_MFD_88PM805) += 88pm805.o 88pm80x.o
+obj-$(CONFIG_MFD_ACT8945A) += act8945a.o
obj-$(CONFIG_MFD_SM501) += sm501.o
obj-$(CONFIG_MFD_ASIC3) += asic3.o tmio_core.o
obj-$(CONFIG_MFD_BCM590XX) += bcm590xx.o
diff --git a/drivers/mfd/act8945a.c b/drivers/mfd/act8945a.c
new file mode 100644
index 0000000..f5745b1
--- /dev/null
+++ b/drivers/mfd/act8945a.c
@@ -0,0 +1,109 @@
+/*
+ * MFD driver for Active-semi ACT8945a PMIC
+ *
+ * Copyright (C) 2015 Atmel Corporation.
+ *
+ * Author: Wenyou Yang <wenyou.yang-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/i2c.h>
+#include <linux/mfd/act8945a.h>
+#include <linux/mfd/core.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/regmap.h>
+
+static const struct mfd_cell act8945a_devs[] = {
+ {
+ .name = "act8945a-pmic",
+ .of_compatible = "active-semi,act8945a-regulator",
+ },
+ {
+ .name = "act8945a-charger",
+ .of_compatible = "active-semi,act8945a-charger",
+ },
+};
+
+static const struct regmap_config act8945a_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int act8945a_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct act8945a_dev *act8945a;
+ int ret;
+
+ act8945a = devm_kzalloc(&i2c->dev, sizeof(*act8945a), GFP_KERNEL);
+ if (!act8945a)
+ return -ENOMEM;
+
+ i2c_set_clientdata(i2c, act8945a);
+
+ act8945a->regmap = devm_regmap_init_i2c(i2c, &act8945a_regmap_config);
+ if (IS_ERR(act8945a->regmap)) {
+ ret = PTR_ERR(act8945a->regmap);
+ dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
+ return ret;
+ }
+
+ ret = mfd_add_devices(&i2c->dev, PLATFORM_DEVID_NONE, act8945a_devs,
+ ARRAY_SIZE(act8945a_devs), NULL, 0, NULL);
+ if (ret) {
+ dev_err(&i2c->dev, "Failed to add sub devices\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int act8945a_i2c_remove(struct i2c_client *i2c)
+{
+ mfd_remove_devices(&i2c->dev);
+
+ return 0;
+}
+
+static const struct i2c_device_id act8945a_i2c_id[] = {
+ { "act8945a", 0 },
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, act8945a_i2c_id);
+
+static const struct of_device_id act8945a_of_match[] = {
+ { .compatible = "active-semi,act8945a", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, act8945a_of_match);
+
+static struct i2c_driver act8945a_i2c_driver = {
+ .driver = {
+ .name = "act8945a",
+ .of_match_table = of_match_ptr(act8945a_of_match),
+ },
+ .probe = act8945a_i2c_probe,
+ .remove = act8945a_i2c_remove,
+ .id_table = act8945a_i2c_id,
+};
+
+static int __init act8945a_i2c_init(void)
+{
+ return i2c_add_driver(&act8945a_i2c_driver);
+}
+subsys_initcall(act8945a_i2c_init);
+
+static void __exit act8945a_i2c_exit(void)
+{
+ i2c_del_driver(&act8945a_i2c_driver);
+}
+module_exit(act8945a_i2c_exit);
+
+MODULE_DESCRIPTION("ACT8945A PMIC multi-function driver");
+MODULE_AUTHOR("Wenyou Yang <wenyou.yang-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/mfd/act8945a.h b/include/linux/mfd/act8945a.h
new file mode 100644
index 0000000..5f67009
--- /dev/null
+++ b/include/linux/mfd/act8945a.h
@@ -0,0 +1,21 @@
+/*
+ * MFD driver for Active-semi ACT8945a PMIC
+ *
+ * Copyright (C) 2015 Atmel Corporation.
+ *
+ * Author: Wenyou Yang <wenyou.yang-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _LINUX_MFD_ACT8945A_H
+#define _LINUX_MFD_ACT8945A_H
+
+struct act8945a_dev {
+ struct regmap *regmap;
+};
+
+#endif
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
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More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply related [flat|nested] 9+ messages in thread
* [PATCH v4 1/2] mfd: act8945a: add Active-semi ACT8945A PMIC MFD driver
@ 2016-01-13 3:55 ` Wenyou Yang
0 siblings, 0 replies; 9+ messages in thread
From: Wenyou Yang @ 2016-01-13 3:55 UTC (permalink / raw)
To: linux-arm-kernel
This patch adds support for the Active-semi ACT8945A PMIC.
It is a Multi Function Device with the following subdevices:
- Regulator
- Charger
It is interfaced to the host controller using I2C interface,
ACT8945A is a child device of the I2C.
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
Changes in v4:
- add a space before .compatible.
- collect Reviewed-by from Krzysztof Kozlowski.
Changes in v3: None
Changes in v2:
- add more help information in Kconfig.
- update the file header with short version license and author line.
- remove unused structure members (dev, i2c_client) of stuct act8945a_dev.
- use define "PLATFORM_DEVID_NONE" for mfd_add_devices(), instead of '-1'.
- use more explicit info to indicate the failure to add sub devices.
- remove the unnecessary print out.
- substitute MODULE_LICENSE("GPL") for MODULE_LICENSE("GPL v2").
drivers/mfd/Kconfig | 11 +++++
drivers/mfd/Makefile | 1 +
drivers/mfd/act8945a.c | 109 ++++++++++++++++++++++++++++++++++++++++++
include/linux/mfd/act8945a.h | 21 ++++++++
4 files changed, 142 insertions(+)
create mode 100644 drivers/mfd/act8945a.c
create mode 100644 include/linux/mfd/act8945a.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 9ca66de..34375a9 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -18,6 +18,17 @@ config MFD_CS5535
This is the core driver for CS5535/CS5536 MFD functions. This is
necessary for using the board's GPIO and MFGPT functionality.
+config MFD_ACT8945A
+ bool "Active-semi ACT8945A"
+ select MFD_CORE
+ select REGMAP_I2C
+ depends on I2C && OF
+ help
+ Support for the ACT8945A PMIC from Active-semi. This device
+ features three step-down DC/DC converters and four low-dropout
+ linear regulators, along with a complete ActivePath battery
+ charger.
+
config MFD_AS3711
bool "AMS AS3711"
select MFD_CORE
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 0f230a6..2f1ca82 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -6,6 +6,7 @@
obj-$(CONFIG_MFD_88PM860X) += 88pm860x.o
obj-$(CONFIG_MFD_88PM800) += 88pm800.o 88pm80x.o
obj-$(CONFIG_MFD_88PM805) += 88pm805.o 88pm80x.o
+obj-$(CONFIG_MFD_ACT8945A) += act8945a.o
obj-$(CONFIG_MFD_SM501) += sm501.o
obj-$(CONFIG_MFD_ASIC3) += asic3.o tmio_core.o
obj-$(CONFIG_MFD_BCM590XX) += bcm590xx.o
diff --git a/drivers/mfd/act8945a.c b/drivers/mfd/act8945a.c
new file mode 100644
index 0000000..f5745b1
--- /dev/null
+++ b/drivers/mfd/act8945a.c
@@ -0,0 +1,109 @@
+/*
+ * MFD driver for Active-semi ACT8945a PMIC
+ *
+ * Copyright (C) 2015 Atmel Corporation.
+ *
+ * Author: Wenyou Yang <wenyou.yang@atmel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/i2c.h>
+#include <linux/mfd/act8945a.h>
+#include <linux/mfd/core.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/regmap.h>
+
+static const struct mfd_cell act8945a_devs[] = {
+ {
+ .name = "act8945a-pmic",
+ .of_compatible = "active-semi,act8945a-regulator",
+ },
+ {
+ .name = "act8945a-charger",
+ .of_compatible = "active-semi,act8945a-charger",
+ },
+};
+
+static const struct regmap_config act8945a_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int act8945a_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct act8945a_dev *act8945a;
+ int ret;
+
+ act8945a = devm_kzalloc(&i2c->dev, sizeof(*act8945a), GFP_KERNEL);
+ if (!act8945a)
+ return -ENOMEM;
+
+ i2c_set_clientdata(i2c, act8945a);
+
+ act8945a->regmap = devm_regmap_init_i2c(i2c, &act8945a_regmap_config);
+ if (IS_ERR(act8945a->regmap)) {
+ ret = PTR_ERR(act8945a->regmap);
+ dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
+ return ret;
+ }
+
+ ret = mfd_add_devices(&i2c->dev, PLATFORM_DEVID_NONE, act8945a_devs,
+ ARRAY_SIZE(act8945a_devs), NULL, 0, NULL);
+ if (ret) {
+ dev_err(&i2c->dev, "Failed to add sub devices\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int act8945a_i2c_remove(struct i2c_client *i2c)
+{
+ mfd_remove_devices(&i2c->dev);
+
+ return 0;
+}
+
+static const struct i2c_device_id act8945a_i2c_id[] = {
+ { "act8945a", 0 },
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, act8945a_i2c_id);
+
+static const struct of_device_id act8945a_of_match[] = {
+ { .compatible = "active-semi,act8945a", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, act8945a_of_match);
+
+static struct i2c_driver act8945a_i2c_driver = {
+ .driver = {
+ .name = "act8945a",
+ .of_match_table = of_match_ptr(act8945a_of_match),
+ },
+ .probe = act8945a_i2c_probe,
+ .remove = act8945a_i2c_remove,
+ .id_table = act8945a_i2c_id,
+};
+
+static int __init act8945a_i2c_init(void)
+{
+ return i2c_add_driver(&act8945a_i2c_driver);
+}
+subsys_initcall(act8945a_i2c_init);
+
+static void __exit act8945a_i2c_exit(void)
+{
+ i2c_del_driver(&act8945a_i2c_driver);
+}
+module_exit(act8945a_i2c_exit);
+
+MODULE_DESCRIPTION("ACT8945A PMIC multi-function driver");
+MODULE_AUTHOR("Wenyou Yang <wenyou.yang@atmel.com>");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/mfd/act8945a.h b/include/linux/mfd/act8945a.h
new file mode 100644
index 0000000..5f67009
--- /dev/null
+++ b/include/linux/mfd/act8945a.h
@@ -0,0 +1,21 @@
+/*
+ * MFD driver for Active-semi ACT8945a PMIC
+ *
+ * Copyright (C) 2015 Atmel Corporation.
+ *
+ * Author: Wenyou Yang <wenyou.yang@atmel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _LINUX_MFD_ACT8945A_H
+#define _LINUX_MFD_ACT8945A_H
+
+struct act8945a_dev {
+ struct regmap *regmap;
+};
+
+#endif
--
1.7.9.5
^ permalink raw reply related [flat|nested] 9+ messages in thread
* [PATCH v4 2/2] mfd: add documentation for ACT8945A DT bindings
@ 2016-01-13 3:55 ` Wenyou Yang
0 siblings, 0 replies; 9+ messages in thread
From: Wenyou Yang @ 2016-01-13 3:55 UTC (permalink / raw)
To: Lee Jones, Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell,
Kumar Gala
Cc: linux-kernel, Javier Martinez Canillas, devicetree,
linux-arm-kernel, Krzysztof Kozlowski, Nicolas Ferre,
Wenyou Yang
The Active-semi ACT8945A PMIC is a Multi-Function Device, it has
two subdevices:
- Regulator
- Charger
This patch adds documentation for ACT8945A DT bindings.
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Rob Herring <robh@kernel.org>
---
Changes in v4: None
Changes in v3:
- fix the tabbing errors in Example.
- use "pmic@5b" label, not "act8945a@5b" in Example.
- collect Acked-by from Rob.
Changes in v2:
- use more specific label in Example.
- add pmic and charger nodes in Example.
Documentation/devicetree/bindings/mfd/act8945a.txt | 82 ++++++++++++++++++++
1 file changed, 82 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/act8945a.txt
diff --git a/Documentation/devicetree/bindings/mfd/act8945a.txt b/Documentation/devicetree/bindings/mfd/act8945a.txt
new file mode 100644
index 0000000..f645344
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/act8945a.txt
@@ -0,0 +1,82 @@
+Device-Tree bindings for Active-semi ACT8945A MFD driver
+
+Required properties:
+ - compatible: "active-semi,act8945a".
+ - reg: the I2C slave address for the ACT8945A chip
+
+The chip exposes two subdevices:
+ - a regulators: see ../regulator/act8945a-regulator.txt
+ - a charger: see ../power/act8945a-charger.txt
+
+Example:
+ pmic@5b {
+ compatible = "active-semi,act8945a";
+ reg = <0x5b>;
+ status = "okay";
+
+ pmic {
+ compatible = "active-semi,act8945a-regulator";
+ active-semi,vsel-high;
+
+ regulators {
+ vdd_1v35_reg: DCDC_REG1 {
+ regulator-name = "VDD_1V35";
+ regulator-min-microvolt = <1350000>;
+ regulator-max-microvolt = <1350000>;
+ regulator-always-on;
+ };
+
+ vdd_1v2_reg: DCDC_REG2 {
+ regulator-name = "VDD_1V2";
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-always-on;
+ };
+
+ vdd_3v3_reg: DCDC_REG3 {
+ regulator-name = "VDD_3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ vdd_fuse_reg: LDO_REG1 {
+ regulator-name = "VDD_FUSE";
+ regulator-min-microvolt = <2500000>;
+ regulator-max-microvolt = <2500000>;
+ regulator-always-on;
+ };
+
+ vdd_3v3_lp_reg: LDO_REG2 {
+ regulator-name = "VDD_3V3_LP";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ vdd_led_reg: LDO_REG3 {
+ regulator-name = "VDD_LED";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ vdd_sdhc_1v8_reg: LDO_REG4 {
+ regulator-name = "VDD_SDHC_1V8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+ };
+ };
+
+ charger {
+ compatible = "active-semi,act8945a-charger";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_charger_chglev>;
+ active-semi,chglev-gpio = <&pioA 12 GPIO_ACTIVE_HIGH>;
+ active-semi,input_voltage_threshold = <6600>;
+ active-semi,precondition_timeout = <40>;
+ active-semi,total_timeout = <3>;
+ };
+ };
--
1.7.9.5
^ permalink raw reply related [flat|nested] 9+ messages in thread
* [PATCH v4 2/2] mfd: add documentation for ACT8945A DT bindings
@ 2016-01-13 3:55 ` Wenyou Yang
0 siblings, 0 replies; 9+ messages in thread
From: Wenyou Yang @ 2016-01-13 3:55 UTC (permalink / raw)
To: Lee Jones, Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell,
Kumar Gala
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA, Javier Martinez Canillas,
devicetree-u79uwXL29TY76Z2rM5mHXA,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
Krzysztof Kozlowski, Nicolas Ferre, Wenyou Yang
The Active-semi ACT8945A PMIC is a Multi-Function Device, it has
two subdevices:
- Regulator
- Charger
This patch adds documentation for ACT8945A DT bindings.
Signed-off-by: Wenyou Yang <wenyou.yang-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>
Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
---
Changes in v4: None
Changes in v3:
- fix the tabbing errors in Example.
- use "pmic@5b" label, not "act8945a@5b" in Example.
- collect Acked-by from Rob.
Changes in v2:
- use more specific label in Example.
- add pmic and charger nodes in Example.
Documentation/devicetree/bindings/mfd/act8945a.txt | 82 ++++++++++++++++++++
1 file changed, 82 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/act8945a.txt
diff --git a/Documentation/devicetree/bindings/mfd/act8945a.txt b/Documentation/devicetree/bindings/mfd/act8945a.txt
new file mode 100644
index 0000000..f645344
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/act8945a.txt
@@ -0,0 +1,82 @@
+Device-Tree bindings for Active-semi ACT8945A MFD driver
+
+Required properties:
+ - compatible: "active-semi,act8945a".
+ - reg: the I2C slave address for the ACT8945A chip
+
+The chip exposes two subdevices:
+ - a regulators: see ../regulator/act8945a-regulator.txt
+ - a charger: see ../power/act8945a-charger.txt
+
+Example:
+ pmic@5b {
+ compatible = "active-semi,act8945a";
+ reg = <0x5b>;
+ status = "okay";
+
+ pmic {
+ compatible = "active-semi,act8945a-regulator";
+ active-semi,vsel-high;
+
+ regulators {
+ vdd_1v35_reg: DCDC_REG1 {
+ regulator-name = "VDD_1V35";
+ regulator-min-microvolt = <1350000>;
+ regulator-max-microvolt = <1350000>;
+ regulator-always-on;
+ };
+
+ vdd_1v2_reg: DCDC_REG2 {
+ regulator-name = "VDD_1V2";
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-always-on;
+ };
+
+ vdd_3v3_reg: DCDC_REG3 {
+ regulator-name = "VDD_3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ vdd_fuse_reg: LDO_REG1 {
+ regulator-name = "VDD_FUSE";
+ regulator-min-microvolt = <2500000>;
+ regulator-max-microvolt = <2500000>;
+ regulator-always-on;
+ };
+
+ vdd_3v3_lp_reg: LDO_REG2 {
+ regulator-name = "VDD_3V3_LP";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ vdd_led_reg: LDO_REG3 {
+ regulator-name = "VDD_LED";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ vdd_sdhc_1v8_reg: LDO_REG4 {
+ regulator-name = "VDD_SDHC_1V8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+ };
+ };
+
+ charger {
+ compatible = "active-semi,act8945a-charger";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_charger_chglev>;
+ active-semi,chglev-gpio = <&pioA 12 GPIO_ACTIVE_HIGH>;
+ active-semi,input_voltage_threshold = <6600>;
+ active-semi,precondition_timeout = <40>;
+ active-semi,total_timeout = <3>;
+ };
+ };
--
1.7.9.5
--
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^ permalink raw reply related [flat|nested] 9+ messages in thread
* [PATCH v4 2/2] mfd: add documentation for ACT8945A DT bindings
@ 2016-01-13 3:55 ` Wenyou Yang
0 siblings, 0 replies; 9+ messages in thread
From: Wenyou Yang @ 2016-01-13 3:55 UTC (permalink / raw)
To: linux-arm-kernel
The Active-semi ACT8945A PMIC is a Multi-Function Device, it has
two subdevices:
- Regulator
- Charger
This patch adds documentation for ACT8945A DT bindings.
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Rob Herring <robh@kernel.org>
---
Changes in v4: None
Changes in v3:
- fix the tabbing errors in Example.
- use "pmic at 5b" label, not "act8945a at 5b" in Example.
- collect Acked-by from Rob.
Changes in v2:
- use more specific label in Example.
- add pmic and charger nodes in Example.
Documentation/devicetree/bindings/mfd/act8945a.txt | 82 ++++++++++++++++++++
1 file changed, 82 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/act8945a.txt
diff --git a/Documentation/devicetree/bindings/mfd/act8945a.txt b/Documentation/devicetree/bindings/mfd/act8945a.txt
new file mode 100644
index 0000000..f645344
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/act8945a.txt
@@ -0,0 +1,82 @@
+Device-Tree bindings for Active-semi ACT8945A MFD driver
+
+Required properties:
+ - compatible: "active-semi,act8945a".
+ - reg: the I2C slave address for the ACT8945A chip
+
+The chip exposes two subdevices:
+ - a regulators: see ../regulator/act8945a-regulator.txt
+ - a charger: see ../power/act8945a-charger.txt
+
+Example:
+ pmic at 5b {
+ compatible = "active-semi,act8945a";
+ reg = <0x5b>;
+ status = "okay";
+
+ pmic {
+ compatible = "active-semi,act8945a-regulator";
+ active-semi,vsel-high;
+
+ regulators {
+ vdd_1v35_reg: DCDC_REG1 {
+ regulator-name = "VDD_1V35";
+ regulator-min-microvolt = <1350000>;
+ regulator-max-microvolt = <1350000>;
+ regulator-always-on;
+ };
+
+ vdd_1v2_reg: DCDC_REG2 {
+ regulator-name = "VDD_1V2";
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-always-on;
+ };
+
+ vdd_3v3_reg: DCDC_REG3 {
+ regulator-name = "VDD_3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ vdd_fuse_reg: LDO_REG1 {
+ regulator-name = "VDD_FUSE";
+ regulator-min-microvolt = <2500000>;
+ regulator-max-microvolt = <2500000>;
+ regulator-always-on;
+ };
+
+ vdd_3v3_lp_reg: LDO_REG2 {
+ regulator-name = "VDD_3V3_LP";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ vdd_led_reg: LDO_REG3 {
+ regulator-name = "VDD_LED";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ vdd_sdhc_1v8_reg: LDO_REG4 {
+ regulator-name = "VDD_SDHC_1V8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+ };
+ };
+
+ charger {
+ compatible = "active-semi,act8945a-charger";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_charger_chglev>;
+ active-semi,chglev-gpio = <&pioA 12 GPIO_ACTIVE_HIGH>;
+ active-semi,input_voltage_threshold = <6600>;
+ active-semi,precondition_timeout = <40>;
+ active-semi,total_timeout = <3>;
+ };
+ };
--
1.7.9.5
^ permalink raw reply related [flat|nested] 9+ messages in thread
end of thread, other threads:[~2016-01-13 3:59 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-01-13 3:55 [PATCH v4 0/2] mfd: act8945a: add Active-semi ACT8945A PMIC MFD driver Wenyou Yang
2016-01-13 3:55 ` Wenyou Yang
2016-01-13 3:55 ` Wenyou Yang
2016-01-13 3:55 ` [PATCH v4 1/2] " Wenyou Yang
2016-01-13 3:55 ` Wenyou Yang
2016-01-13 3:55 ` Wenyou Yang
2016-01-13 3:55 ` [PATCH v4 2/2] mfd: add documentation for ACT8945A DT bindings Wenyou Yang
2016-01-13 3:55 ` Wenyou Yang
2016-01-13 3:55 ` Wenyou Yang
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