[PATCH V1] mfd: da9063: Add device tree support

From: Steve Twiss
Date: Wed Jan 14 2015 - 09:45:42 EST

From: Steve Twiss <stwiss.opensource@xxxxxxxxxxx>

Add device tree support for DA9063 regulators; Real-Time Clock
and Watchdog.


Signed-off-by: Steve Twiss <stwiss.opensource@xxxxxxxxxxx>

---
Checks performed with linux-next/v3.19-rc4/scripts/checkpatch.pl
da9063.txt total: 0 errors, 0 warnings, 94 lines checked
da9063-core.c total: 0 errors, 0 warnings, 192 lines checked
da9063-i2c.c total: 0 errors, 0 warnings, 277 lines checked
core.h total: 0 errors, 0 warnings, 99 lines checked
This patch applies against linux-next and v3.19-rc4



Documentation/devicetree/bindings/mfd/da9063.txt | 94 ++++++++++++++++++++++++
drivers/mfd/da9063-core.c | 2 +
drivers/mfd/da9063-i2c.c | 11 +++
include/linux/mfd/da9063/core.h | 1 +
4 files changed, 108 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/da9063.txt

diff --git a/Documentation/devicetree/bindings/mfd/da9063.txt b/Documentation/devicetree/bindings/mfd/da9063.txt
new file mode 100644
index 0000000..ac26af4
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/da9063.txt
@@ -0,0 +1,94 @@
+* Dialog DA9063 Power Management Integrated Circuit (PMIC)
+
+DA9093 consists of a large and varied group of sub-devices (I2C Only):
+
+Device Supply Names Description
+------ ------------ -----------
+da9063-regulator : : LDOs & BUCKs
+da9063-rtc : : Real-Time Clock
+da9063-watchdog : : Watchdog
+
+======
+
+Required properties:
+
+- compatible : Should be "dlg,da9063-ca", "dlg,da9063-bb" or/and
+ "dlg,da9063-ad".
+- reg : Specifies the I2C slave address (this defaults to 0x58 but it can be
+ modified to match the chip's OTP settings).
+- interrupt-parent : Specifies the reference to the interrupt controller for
+ the DA9063.
+- interrupts : IRQ line information.
+- interrupt-controller
+
+Sub-nodes:
+
+- regulators : This node defines the settings for the LDOs and BUCKs. The
+ DA9063 regulators are bound using their names listed below:
+
+ bcore1 : BUCK CORE1
+ bcore2 : BUCK CORE2
+ bpro : BUCK PRO
+ bmem : BUCK MEM
+ bio : BUCK IO
+ bperi : BUCK PERI
+ ldo1 : LDO_1
+ ldo2 : LDO_2
+ ldo3 : LDO_3
+ ldo4 : LDO_4
+ ldo5 : LDO_5
+ ldo6 : LDO_6
+ ldo7 : LDO_7
+ ldo8 : LDO_8
+ ldo9 : LDO_9
+ ldo10 : LDO_10
+ ldo11 : LDO_11
+
+ The component follows the standard regulator framework and the bindings
+ details of individual regulator device can be found in:
+ Documentation/devicetree/bindings/regulator/regulator.txt
+
+- rtc : This node defines settings for the Real-Time Clock associated with
+ the DA9063. There are currently no entries in this binding, however
+ compatible = "dlg,da9063-rtc" should be added if a node is created.
+
+- watchdog : This node defines settings for the Watchdog timer associated
+ with the DA9063. There are currently no entries in this binding, however
+ compatible = "dlg,da9063-watchdog" should be added if a node is created.
+
+
+Example:
+
+ pmic0: da9063@58 {
+ compatible = "dlg,da9063-ca", "dlg,da9063-bb", "dlg,da9063-ad";
+ reg = <0x58>;
+ interrupt-parent = <&gpio6>;
+ interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-controller;
+
+ rtc {
+ compatible = "dlg,da9063-rtc";
+ };
+
+ wdt {
+ compatible = "dlg,da9063-watchdog";
+ };
+
+ regulators {
+ DA9063_BCORE1: bcore1 {
+ regulator-name = "BCORE1";
+ regulator-min-microvolt = <300000>;
+ regulator-max-microvolt = <1570000>;
+ regulator-min-microamp = <500000>;
+ regulator-max-microamp = <2000000>;
+ regulator-boot-on;
+ };
+ DA9063_LDO11: ldo11 {
+ regulator-name = "LDO_11";
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <3600000>;
+ regulator-boot-on;
+ };
+ };
+ };
+
diff --git a/drivers/mfd/da9063-core.c b/drivers/mfd/da9063-core.c
index f38bc98..171ed7e 100644
--- a/drivers/mfd/da9063-core.c
+++ b/drivers/mfd/da9063-core.c
@@ -85,6 +85,7 @@ static const struct mfd_cell da9063_devs[] = {
.name = DA9063_DRVNAME_LEDS,
},
{
+ .of_compatible = "dlg,da9063-watchdog",
.name = DA9063_DRVNAME_WATCHDOG,
},
{
@@ -98,6 +99,7 @@ static const struct mfd_cell da9063_devs[] = {
.resources = da9063_onkey_resources,
},
{
+ .of_compatible = "dlg,da9063-rtc",
.name = DA9063_DRVNAME_RTC,
.num_resources = ARRAY_SIZE(da9063_rtc_resources),
.resources = da9063_rtc_resources,
diff --git a/drivers/mfd/da9063-i2c.c b/drivers/mfd/da9063-i2c.c
index 21fd8d9..c4f5351 100644
--- a/drivers/mfd/da9063-i2c.c
+++ b/drivers/mfd/da9063-i2c.c
@@ -25,6 +25,9 @@
#include <linux/mfd/da9063/pdata.h>
#include <linux/mfd/da9063/registers.h>

+#include <linux/of.h>
+#include <linux/regulator/of_regulator.h>
+
static const struct regmap_range da9063_ad_readable_ranges[] = {
{
.range_min = DA9063_REG_PAGE_CON,
@@ -203,6 +206,13 @@ static struct regmap_config da9063_regmap_config = {
.cache_type = REGCACHE_RBTREE,
};

+static const struct of_device_id da9063_dt_ids[] = {
+ { .compatible = "dlg,da9063-ad", },
+ { .compatible = "dlg,da9063-bb", },
+ { .compatible = "dlg,da9063-ca", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, da9063_dt_ids);
static int da9063_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
@@ -257,6 +267,7 @@ static struct i2c_driver da9063_i2c_driver = {
.driver = {
.name = "da9063",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(da9063_dt_ids),
},
.probe = da9063_i2c_probe,
.remove = da9063_i2c_remove,
diff --git a/include/linux/mfd/da9063/core.h b/include/linux/mfd/da9063/core.h
index b92a326..79f4d82 100644
--- a/include/linux/mfd/da9063/core.h
+++ b/include/linux/mfd/da9063/core.h
@@ -36,6 +36,7 @@ enum da9063_models {
enum da9063_variant_codes {
PMIC_DA9063_AD = 0x3,
PMIC_DA9063_BB = 0x5,
+ PMIC_DA9063_CA = 0x6,
};

/* Interrupts */
--
end-of-patch for PATCH V1

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