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SubjectRe: [PATCH V2 2/4] regulator: tps62360: add dt support
Date
On Fri, 11 May 2012 02:19:37 +0530, Laxman Dewangan <ldewangan@nvidia.com> wrote:
> Add dt support for the pmu device tps62360 and
> Add binding documentation with example.
> With this patch driver will support both device-tree and
> non-device tree registration.
>
> Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
> ---
> Changes from V1:
> Fixed possible build error in non devicetree.

Minor comments below...

>
> .../bindings/regulator/tps62360-regulator.txt | 45 ++++++++++++
> drivers/regulator/tps62360-regulator.c | 74 +++++++++++++++++++-
> 2 files changed, 118 insertions(+), 1 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/regulator/tps62360-regulator.txt
>
> diff --git a/Documentation/devicetree/bindings/regulator/tps62360-regulator.txt b/Documentation/devicetree/bindings/regulator/tps62360-regulator.txt
> new file mode 100644
> index 0000000..e337cd6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/regulator/tps62360-regulator.txt
> @@ -0,0 +1,45 @@
> +TPS62360 Voltage regulators
> +
> +Required properties:
> +- compatible: Must be one of the following.
> + "ti,tps62360"
> + "ti,tps62361",
> + "ti,tps62362",
> + "ti,tps62363",
> +- reg: I2C slave address
> +
> +Optional properties:
> +- ti,enable-force-pwm: Enable fore PWM mode. This is boolean value.
typo ----------------------------^^^^

> +- ti,enable-vout-discharge: Enable output discharge. This is boolean value.
> +- ti,enable-pull-down: Enable pull down. This is boolean value.
> +- ti,vsel0-gpio: GPIO for controlling VSEL0 line.
> + If this property is missing, then assume that there is no GPIO
> + for vsel0 control.
> +- ti,vsel1-gpio: Gpio for controlling VSEL1 line.
> + If this property is missing, then assume that there is no GPIO
> + for vsel1 control.
> +- ti,vsel0-state-high: Inital state of vsel0 input is high.
> + If this property is missing, then assume the state as low (0).
> +- ti,vsel1-state-high: Inital state of vsel1 input is high.
> + If this property is missing, then assume the state as low (0).
> +
> +Any property defined as part of the core regulator binding, defined in
> +regulator.txt, can also be used.
> +
> +Example:
> +
> + abc: tps62360 {
> + compatible = "ti,tps62361";
> + reg = <0x60>;
> + regulator-name = "tps62361-vout";
> + regulator-min-microvolt = <500000>;
> + regulator-max-microvolt = <1500000>;
> + regulator-boot-on
> + ti,vsel0-gpio = <&gpio1 16 0>;
> + ti,vsel1-gpio = <&gpio1 17 0>;
> + ti,vsel0-state-high;
> + ti,vsel1-state-high;
> + ti,enable-pull-down;
> + ti,enable-force-pwm;
> + ti,enable-vout-discharge;
> + };
> diff --git a/drivers/regulator/tps62360-regulator.c b/drivers/regulator/tps62360-regulator.c
> index 3506900..9985303 100644
> --- a/drivers/regulator/tps62360-regulator.c
> +++ b/drivers/regulator/tps62360-regulator.c
> @@ -26,6 +26,10 @@
> #include <linux/module.h>
> #include <linux/init.h>
> #include <linux/err.h>
> +#include <linux/of.h>
> +#include <linux/of_device.h>
> +#include <linux/of_gpio.h>
> +#include <linux/regulator/of_regulator.h>
> #include <linux/platform_device.h>
> #include <linux/regulator/driver.h>
> #include <linux/regulator/machine.h>
> @@ -297,6 +301,58 @@ static const struct regmap_config tps62360_regmap_config = {
> .cache_type = REGCACHE_RBTREE,
> };
>
> +static struct tps62360_regulator_platform_data *
> + of_get_tps62360_platform_data(struct device *dev)
> +{
> + struct tps62360_regulator_platform_data *pdata;
> + struct device_node *np = dev->of_node;
> +
> + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
> + if (!pdata) {
> + dev_err(dev, "Memory alloc failed for platform data\n");
> + return NULL;
> + }
> +
> + pdata->reg_init_data = of_get_regulator_init_data(dev, dev->of_node);
> + if (!pdata->reg_init_data) {
> + dev_err(dev, "Not able to get OF regulator init data\n");
> + return NULL;
> + }
> +
> + pdata->vsel0_gpio = of_get_named_gpio(np, "vsel0-gpio", 0);
> + pdata->vsel1_gpio = of_get_named_gpio(np, "vsel1_gpio", 0);
typo --------------------------------------------------^^^

Otherwise looks good to me.

g.



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