[6/9] regulator: make fixed regulator driver extract data from dt

Message ID 1317118372-17052-7-git-send-email-rnayak@ti.com
State New
Headers show

Commit Message

Rajendra Nayak Sept. 27, 2011, 10:12 a.m.
Modify the fixed regulator driver to extract fixed_voltage_config from
device tree when passed, instead of getting it through platform_data
structures (on non-DT builds)

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
---
 drivers/regulator/fixed.c |   18 +++++++++++++++++-
 1 files changed, 17 insertions(+), 1 deletions(-)

Comments

Grant Likely Sept. 30, 2011, 1:34 a.m. | #1
On Tue, Sep 27, 2011 at 03:42:49PM +0530, Rajendra Nayak wrote:
> Modify the fixed regulator driver to extract fixed_voltage_config from
> device tree when passed, instead of getting it through platform_data
> structures (on non-DT builds)
> 
> Signed-off-by: Rajendra Nayak <rnayak@ti.com>
> ---
>  drivers/regulator/fixed.c |   18 +++++++++++++++++-
>  1 files changed, 17 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c
> index c09f791..0a9a10d 100644
> --- a/drivers/regulator/fixed.c
> +++ b/drivers/regulator/fixed.c
> @@ -140,10 +140,15 @@ static struct regulator_ops fixed_voltage_ops = {
>  
>  static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev)
>  {
> -	struct fixed_voltage_config *config = pdev->dev.platform_data;
> +	struct fixed_voltage_config *config;

This line doesn't actually need to change; just override it below if
the of_node is present.

>  	struct fixed_voltage_data *drvdata;
>  	int ret;
>  
> +	if (pdev->dev.of_node)
> +		config = of_get_fixed_voltage_config(&pdev->dev);
> +	else
> +		config = pdev->dev.platform_data;
> +
>  	drvdata = kzalloc(sizeof(struct fixed_voltage_data), GFP_KERNEL);
>  	if (drvdata == NULL) {
>  		dev_err(&pdev->dev, "Failed to allocate device data\n");
> @@ -252,12 +257,23 @@ static int __devexit reg_fixed_voltage_remove(struct platform_device *pdev)
>  	return 0;
>  }
>  
> +#if defined(CONFIG_OF)
> +static const struct of_device_id fixed_of_match[] __devinitconst = {
> +	{ .compatible = "regulator-fixed", },
> +	{},
> +};
> +MODULE_DEVICE_TABLE(of, fixed_of_match);
> +#else
> +#define fixed_of_match NULL
> +#endif
> +
>  static struct platform_driver regulator_fixed_voltage_driver = {
>  	.probe		= reg_fixed_voltage_probe,
>  	.remove		= __devexit_p(reg_fixed_voltage_remove),
>  	.driver		= {
>  		.name		= "reg-fixed-voltage",
>  		.owner		= THIS_MODULE,
> +		.of_match_table = fixed_of_match,


>  	},
>  };
>  
> -- 
> 1.7.1
>

Patch

diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c
index c09f791..0a9a10d 100644
--- a/drivers/regulator/fixed.c
+++ b/drivers/regulator/fixed.c
@@ -140,10 +140,15 @@  static struct regulator_ops fixed_voltage_ops = {
 
 static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev)
 {
-	struct fixed_voltage_config *config = pdev->dev.platform_data;
+	struct fixed_voltage_config *config;
 	struct fixed_voltage_data *drvdata;
 	int ret;
 
+	if (pdev->dev.of_node)
+		config = of_get_fixed_voltage_config(&pdev->dev);
+	else
+		config = pdev->dev.platform_data;
+
 	drvdata = kzalloc(sizeof(struct fixed_voltage_data), GFP_KERNEL);
 	if (drvdata == NULL) {
 		dev_err(&pdev->dev, "Failed to allocate device data\n");
@@ -252,12 +257,23 @@  static int __devexit reg_fixed_voltage_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#if defined(CONFIG_OF)
+static const struct of_device_id fixed_of_match[] __devinitconst = {
+	{ .compatible = "regulator-fixed", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, fixed_of_match);
+#else
+#define fixed_of_match NULL
+#endif
+
 static struct platform_driver regulator_fixed_voltage_driver = {
 	.probe		= reg_fixed_voltage_probe,
 	.remove		= __devexit_p(reg_fixed_voltage_remove),
 	.driver		= {
 		.name		= "reg-fixed-voltage",
 		.owner		= THIS_MODULE,
+		.of_match_table = fixed_of_match,
 	},
 };