From ec400c9fab99d16a491cea17d27d0c6a5780b97c Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 31 Oct 2011 17:11:07 -0700 Subject: [PATCH] lis3lv02d: make regulator API usage unconditional MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The regulator API contains a range of features for stubbing itself out when not in use and for transparently restricting the actual effect of regulator API calls where they can't be supported on a particular system so that drivers don't need to individually implement this. Simplify the driver slightly by making use of this idiom. The only in tree user is ecovec24 which does not use the regulator API. Signed-off-by: Mark Brown Cc: Éric Piel Cc: Ilkka Koskinen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/misc/lis3lv02d/lis3lv02d_i2c.c | 34 ++++++++++++---------------------- include/linux/lis3lv02d.h | 1 - 2 files changed, 12 insertions(+), 23 deletions(-) diff --git a/drivers/misc/lis3lv02d/lis3lv02d_i2c.c b/drivers/misc/lis3lv02d/lis3lv02d_i2c.c index 6cdc38f..c02fea0 100644 --- a/drivers/misc/lis3lv02d/lis3lv02d_i2c.c +++ b/drivers/misc/lis3lv02d/lis3lv02d_i2c.c @@ -79,8 +79,7 @@ static int lis3_i2c_init(struct lis3lv02d *lis3) u8 reg; int ret; - if (lis3->reg_ctrl) - lis3_reg_ctrl(lis3, LIS3_REG_ON); + lis3_reg_ctrl(lis3, LIS3_REG_ON); lis3->read(lis3, WHO_AM_I, ®); if (reg != lis3->whoami) @@ -106,10 +105,6 @@ static int __devinit lis3lv02d_i2c_probe(struct i2c_client *client, struct lis3lv02d_platform_data *pdata = client->dev.platform_data; if (pdata) { - /* Regulator control is optional */ - if (pdata->driver_features & LIS3_USE_REGULATOR_CTRL) - lis3_dev.reg_ctrl = lis3_reg_ctrl; - if ((pdata->driver_features & LIS3_USE_BLOCK_READ) && (i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_I2C_BLOCK))) @@ -131,15 +126,13 @@ static int __devinit lis3lv02d_i2c_probe(struct i2c_client *client, goto fail; } - if (lis3_dev.reg_ctrl) { - lis3_dev.regulators[0].supply = reg_vdd; - lis3_dev.regulators[1].supply = reg_vdd_io; - ret = regulator_bulk_get(&client->dev, - ARRAY_SIZE(lis3_dev.regulators), - lis3_dev.regulators); - if (ret < 0) - goto fail; - } + lis3_dev.regulators[0].supply = reg_vdd; + lis3_dev.regulators[1].supply = reg_vdd_io; + ret = regulator_bulk_get(&client->dev, + ARRAY_SIZE(lis3_dev.regulators), + lis3_dev.regulators); + if (ret < 0) + goto fail; lis3_dev.pdata = pdata; lis3_dev.bus_priv = client; @@ -153,13 +146,11 @@ static int __devinit lis3lv02d_i2c_probe(struct i2c_client *client, i2c_set_clientdata(client, &lis3_dev); /* Provide power over the init call */ - if (lis3_dev.reg_ctrl) - lis3_reg_ctrl(&lis3_dev, LIS3_REG_ON); + lis3_reg_ctrl(&lis3_dev, LIS3_REG_ON); ret = lis3lv02d_init_device(&lis3_dev); - if (lis3_dev.reg_ctrl) - lis3_reg_ctrl(&lis3_dev, LIS3_REG_OFF); + lis3_reg_ctrl(&lis3_dev, LIS3_REG_OFF); if (ret) goto fail2; @@ -185,9 +176,8 @@ static int __devexit lis3lv02d_i2c_remove(struct i2c_client *client) lis3lv02d_joystick_disable(lis3); lis3lv02d_remove_fs(&lis3_dev); - if (lis3_dev.reg_ctrl) - regulator_bulk_free(ARRAY_SIZE(lis3->regulators), - lis3_dev.regulators); + regulator_bulk_free(ARRAY_SIZE(lis3->regulators), + lis3_dev.regulators); return 0; } diff --git a/include/linux/lis3lv02d.h b/include/linux/lis3lv02d.h index d4292c8..f1664c6 100644 --- a/include/linux/lis3lv02d.h +++ b/include/linux/lis3lv02d.h @@ -113,7 +113,6 @@ struct lis3lv02d_platform_data { s8 axis_x; s8 axis_y; s8 axis_z; -#define LIS3_USE_REGULATOR_CTRL 0x01 #define LIS3_USE_BLOCK_READ 0x02 u16 driver_features; int default_rate; -- 2.7.4