[media] si4713: switch to devm regulator API
This switches back to the normal regulator API (but use
managed variant) in preparation for device tree support.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: fixed two trival compiler warnings]
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
diff --git a/drivers/media/radio/si4713/si4713.c b/drivers/media/radio/si4713/si4713.c
index b576555..5c2a2fc 100644
--- a/drivers/media/radio/si4713/si4713.c
+++ b/drivers/media/radio/si4713/si4713.c
@@ -23,6 +23,7 @@
#include <linux/completion.h>
#include <linux/delay.h>
+#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/i2c.h>
#include <linux/slab.h>
@@ -366,13 +367,22 @@
if (sdev->power_state)
return 0;
- if (sdev->supplies) {
- err = regulator_bulk_enable(sdev->supplies, sdev->supply_data);
+ if (sdev->vdd) {
+ err = regulator_enable(sdev->vdd);
if (err) {
- v4l2_err(&sdev->sd, "Failed to enable supplies: %d\n", err);
+ v4l2_err(&sdev->sd, "Failed to enable vdd: %d\n", err);
return err;
}
}
+
+ if (sdev->vio) {
+ err = regulator_enable(sdev->vio);
+ if (err) {
+ v4l2_err(&sdev->sd, "Failed to enable vio: %d\n", err);
+ return err;
+ }
+ }
+
if (gpio_is_valid(sdev->gpio_reset)) {
udelay(50);
gpio_set_value(sdev->gpio_reset, 1);
@@ -399,11 +409,18 @@
}
if (gpio_is_valid(sdev->gpio_reset))
gpio_set_value(sdev->gpio_reset, 0);
- if (sdev->supplies) {
- err = regulator_bulk_disable(sdev->supplies, sdev->supply_data);
+
+
+ if (sdev->vdd) {
+ err = regulator_disable(sdev->vdd);
if (err)
- v4l2_err(&sdev->sd,
- "Failed to disable supplies: %d\n", err);
+ v4l2_err(&sdev->sd, "Failed to disable vdd: %d\n", err);
+ }
+
+ if (sdev->vio) {
+ err = regulator_disable(sdev->vio);
+ if (err)
+ v4l2_err(&sdev->sd, "Failed to disable vio: %d\n", err);
}
return err;
@@ -432,12 +449,21 @@
v4l2_dbg(1, debug, &sdev->sd, "Device in reset mode\n");
if (gpio_is_valid(sdev->gpio_reset))
gpio_set_value(sdev->gpio_reset, 0);
- if (sdev->supplies) {
- err = regulator_bulk_disable(sdev->supplies,
- sdev->supply_data);
- if (err)
+
+ if (sdev->vdd) {
+ err = regulator_disable(sdev->vdd);
+ if (err) {
v4l2_err(&sdev->sd,
- "Failed to disable supplies: %d\n", err);
+ "Failed to disable vdd: %d\n", err);
+ }
+ }
+
+ if (sdev->vio) {
+ err = regulator_disable(sdev->vio);
+ if (err) {
+ v4l2_err(&sdev->sd,
+ "Failed to disable vio: %d\n", err);
+ }
}
sdev->power_state = POWER_OFF;
}
@@ -1422,7 +1448,7 @@
struct si4713_device *sdev;
struct si4713_platform_data *pdata = client->dev.platform_data;
struct v4l2_ctrl_handler *hdl;
- int rval, i;
+ int rval;
sdev = kzalloc(sizeof(*sdev), GFP_KERNEL);
if (!sdev) {
@@ -1441,17 +1467,26 @@
}
sdev->gpio_reset = pdata->gpio_reset;
gpio_direction_output(sdev->gpio_reset, 0);
- sdev->supplies = pdata->supplies;
}
- for (i = 0; i < sdev->supplies; i++)
- sdev->supply_data[i].supply = pdata->supply_names[i];
+ sdev->vdd = devm_regulator_get_optional(&client->dev, "vdd");
+ if (IS_ERR(sdev->vdd)) {
+ rval = PTR_ERR(sdev->vdd);
+ if (rval == -EPROBE_DEFER)
+ goto exit;
- rval = regulator_bulk_get(&client->dev, sdev->supplies,
- sdev->supply_data);
- if (rval) {
- dev_err(&client->dev, "Cannot get regulators: %d\n", rval);
- goto free_gpio;
+ dev_dbg(&client->dev, "no vdd regulator found: %d\n", rval);
+ sdev->vdd = NULL;
+ }
+
+ sdev->vio = devm_regulator_get_optional(&client->dev, "vio");
+ if (IS_ERR(sdev->vio)) {
+ rval = PTR_ERR(sdev->vio);
+ if (rval == -EPROBE_DEFER)
+ goto exit;
+
+ dev_dbg(&client->dev, "no vio regulator found: %d\n", rval);
+ sdev->vio = NULL;
}
v4l2_i2c_subdev_init(&sdev->sd, client, &si4713_subdev_ops);
@@ -1559,7 +1594,7 @@
client->name, sdev);
if (rval < 0) {
v4l2_err(&sdev->sd, "Could not request IRQ\n");
- goto put_reg;
+ goto free_ctrls;
}
v4l2_dbg(1, debug, &sdev->sd, "IRQ requested.\n");
} else {
@@ -1579,9 +1614,6 @@
free_irq(client->irq, sdev);
free_ctrls:
v4l2_ctrl_handler_free(hdl);
-put_reg:
- regulator_bulk_free(sdev->supplies, sdev->supply_data);
-free_gpio:
if (gpio_is_valid(sdev->gpio_reset))
gpio_free(sdev->gpio_reset);
free_sdev:
@@ -1604,7 +1636,6 @@
v4l2_device_unregister_subdev(sd);
v4l2_ctrl_handler_free(sd->ctrl_handler);
- regulator_bulk_free(sdev->supplies, sdev->supply_data);
if (gpio_is_valid(sdev->gpio_reset))
gpio_free(sdev->gpio_reset);
kfree(sdev);
diff --git a/drivers/media/radio/si4713/si4713.h b/drivers/media/radio/si4713/si4713.h
index ed700e3..ed28ed2 100644
--- a/drivers/media/radio/si4713/si4713.h
+++ b/drivers/media/radio/si4713/si4713.h
@@ -190,8 +190,6 @@
#define MIN_ACOMP_THRESHOLD (-40)
#define MAX_ACOMP_GAIN 20
-#define SI4713_NUM_SUPPLIES 2
-
/*
* si4713_device - private data
*/
@@ -236,8 +234,8 @@
struct v4l2_ctrl *tune_ant_cap;
};
struct completion work;
- unsigned supplies;
- struct regulator_bulk_data supply_data[SI4713_NUM_SUPPLIES];
+ struct regulator *vdd;
+ struct regulator *vio;
int gpio_reset;
u32 power_state;
u32 rds_enabled;