[PATCH 1/3] regulators: max8660: use i2c_id->driver_data rather than ->name

From: Daniel Mack
Date: Fri Aug 02 2013 - 04:19:39 EST


Introduce an enum and denote the device type via struct i2c_id's
driver_data field rather than comparing strings.

Signed-off-by: Daniel Mack <zonque@xxxxxxxxx>
---
drivers/regulator/max8660.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c
index d428ef9..ba3b8af 100644
--- a/drivers/regulator/max8660.c
+++ b/drivers/regulator/max8660.c
@@ -305,6 +305,11 @@ static const struct regulator_desc max8660_reg[] = {
},
};

+enum {
+ MAX8660 = 0,
+ MAX8661 = 1,
+};
+
static int max8660_probe(struct i2c_client *client,
const struct i2c_device_id *i2c_id)
{
@@ -313,6 +318,7 @@ static int max8660_probe(struct i2c_client *client,
struct regulator_config config = { };
struct max8660 *max8660;
int boot_on, i, id, ret = -EINVAL;
+ unsigned int type;

if (pdata->num_subdevs > MAX8660_V_END) {
dev_err(&client->dev, "Too many regulators found!\n");
@@ -327,6 +333,7 @@ static int max8660_probe(struct i2c_client *client,

max8660->client = client;
rdev = max8660->rdev;
+ type = i2c_id->driver_data;

if (pdata->en34_is_high) {
/* Simulate always on */
@@ -376,7 +383,7 @@ static int max8660_probe(struct i2c_client *client,
break;

case MAX8660_V7:
- if (!strcmp(i2c_id->name, "max8661")) {
+ if (type == MAX8661) {
dev_err(&client->dev, "Regulator not on this chip!\n");
goto err_out;
}
@@ -431,8 +438,8 @@ static int max8660_remove(struct i2c_client *client)
}

static const struct i2c_device_id max8660_id[] = {
- { "max8660", 0 },
- { "max8661", 0 },
+ { .name = "max8660", .driver_data = MAX8660 },
+ { .name = "max8661", .driver_data = MAX8661 },
{ }
};
MODULE_DEVICE_TABLE(i2c, max8660_id);
--
1.8.3.1

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