Commit 6f39ac4e authored by Patil, Rachna's avatar Patil, Rachna Committed by Sebastian Andrzej Siewior
Browse files

iio: ti_am335x_adc: Add DT support 



Add DT support for client ADC driver.

Acked-by: default avatarJonathan Cameron <jic23@kernel.org>
Signed-off-by: default avatarPatil, Rachna <rachna@ti.com>
Signed-off-by: default avatarPantelis Antoniou <panto@antoniou-consulting.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
Signed-off-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
parent b9194fdf

drivers/iio/adc/ti_am335x_adc.c

+24 −5
Original line number Diff line number Diff line
@@ -22,6 +22,8 @@ 
#include <linux/platform_device.h>

#include <linux/io.h>

#include <linux/iio/iio.h>

#include <linux/of.h>

#include <linux/of_device.h>



#include <linux/mfd/ti_am335x_tscadc.h>

#include <linux/platform_data/ti_am335x_adc.h>
@@ -152,11 +154,12 @@ static int tiadc_probe(struct platform_device *pdev) 
	struct iio_dev		*indio_dev;

	struct tiadc_device	*adc_dev;

	struct ti_tscadc_dev	*tscadc_dev = ti_tscadc_dev_get(pdev);

	struct mfd_tscadc_board	*pdata;

	struct mfd_tscadc_board	*pdata = tscadc_dev->dev->platform_data;

	struct device_node	*node = pdev->dev.of_node;

	int			err;

	u32			val32;



	pdata = tscadc_dev->dev->platform_data;

	if (!pdata || !pdata->adc_init) {

	if (!pdata && !node) {

		dev_err(&pdev->dev, "Could not find platform data\n");

		return -EINVAL;

	}
@@ -169,8 +172,17 @@ static int tiadc_probe(struct platform_device *pdev) 
	}

	adc_dev = iio_priv(indio_dev);



	adc_dev->mfd_tscadc = tscadc_dev;

	adc_dev->mfd_tscadc = ti_tscadc_dev_get(pdev);



	if (pdata)

		adc_dev->channels = pdata->adc_init->adc_channels;

	else {

		err = of_property_read_u32(node,

				"ti,adc-channels", &val32);

		if (err < 0)

			goto err_free_device;

		adc_dev->channels = val32;

	}



	indio_dev->dev.parent = &pdev->dev;

	indio_dev->name = dev_name(&pdev->dev);
@@ -260,11 +272,18 @@ static const struct dev_pm_ops tiadc_pm_ops = { 
#define TIADC_PM_OPS NULL

#endif



static const struct of_device_id ti_adc_dt_ids[] = {

	{ .compatible = "ti,am3359-adc", },

	{ }

};

MODULE_DEVICE_TABLE(of, ti_adc_dt_ids);



static struct platform_driver tiadc_driver = {

	.driver = {

		.name   = "tiadc",

		.owner	= THIS_MODULE,

		.pm	= TIADC_PM_OPS,

		.of_match_table = of_match_ptr(ti_adc_dt_ids),

	},

	.probe	= tiadc_probe,

	.remove	= tiadc_remove,

drivers/mfd/ti_am335x_tscadc.c

+1 −0
Original line number Diff line number Diff line
@@ -210,6 +210,7 @@ static int ti_tscadc_probe(struct platform_device *pdev) 
	/* ADC Cell */

	cell = &tscadc->cells[ADC_CELL];

	cell->name = "tiadc";

	cell->of_compatible = "ti,am3359-adc";

	cell->platform_data = &tscadc;

	cell->pdata_size = sizeof(tscadc);