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mfd: tps65090: add DT support for tps65090

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Add device tree support for the TI PMIC TPS65090.
The device can be registered through platform or DT.

Add device tree binding document for this device.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Laxman Dewangan
2013-01-29 14:35:15 +05:30
committed by Samuel Ortiz
parent 5f384c1f8b
commit 40719314f2
2 changed files with 141 additions and 3 deletions
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22
drivers/mfd/tps65090.c
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@@ -25,6 +25,8 @@
#include <linux/i2c.h>
#include <linux/mfd/core.h>
#include <linux/mfd/tps65090.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/err.h>
#define NUM_INT_REG 2
@@ -148,18 +150,31 @@ static const struct regmap_config tps65090_regmap_config = {
.volatile_reg = is_volatile_reg,
};
#ifdef CONFIG_OF
static const struct of_device_id tps65090_of_match[] = {
{ .compatible = "ti,tps65090",},
{},
};
MODULE_DEVICE_TABLE(of, tps65090_of_match);
#endif
static int tps65090_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct tps65090_platform_data *pdata = client->dev.platform_data;
int irq_base = 0;
struct tps65090 *tps65090;
int ret;
if (!pdata) {
dev_err(&client->dev, "tps65090 requires platform data\n");
if (!pdata && !client->dev.of_node) {
dev_err(&client->dev,
"tps65090 requires platform data or of_node\n");
return -EINVAL;
}
if (pdata)
irq_base = pdata->irq_base;
tps65090 = devm_kzalloc(&client->dev, sizeof(*tps65090), GFP_KERNEL);
if (!tps65090) {
dev_err(&client->dev, "mem alloc for tps65090 failed\n");
@@ -178,7 +193,7 @@ static int tps65090_i2c_probe(struct i2c_client *client,
if (client->irq) {
ret = regmap_add_irq_chip(tps65090->rmap, client->irq,
IRQF_ONESHOT | IRQF_TRIGGER_LOW, pdata->irq_base,
IRQF_ONESHOT | IRQF_TRIGGER_LOW, irq_base,
&tps65090_irq_chip, &tps65090->irq_data);
if (ret) {
dev_err(&client->dev,
@@ -247,6 +262,7 @@ static struct i2c_driver tps65090_driver = {
.driver = {
.name = "tps65090",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(tps65090_of_match),
.pm = &tps65090_pm_ops,
},
.probe = tps65090_i2c_probe,