diff options
| author | Charles Keepax <ckeepax@opensource.wolfsonmicro.com> | 2014-04-16 11:01:38 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-04-18 19:35:03 +0200 |
| commit | 4a8c475f5fd5c1271dba36a453d666d5ed473aa6 (patch) | |
| tree | fcbc82d2b185af50f6070323e8142e4127aca125 /drivers/regulator/arizona-ldo1.c | |
| parent | regulator: arizona-micsupp: Add processing of init_data from device tree (diff) | |
| download | linux-4a8c475f5fd5c1271dba36a453d666d5ed473aa6.tar.xz linux-4a8c475f5fd5c1271dba36a453d666d5ed473aa6.zip | |
regulator: arizona-ldo1: Move setup processing from arizona-core
It is more idiomatic to process things relating to the regulator in its
driver. This patch moves both processing of device tree relating to the
regulator and checking if the regulator is external from arizona-core
into the regulator driver.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/regulator/arizona-ldo1.c')
| -rw-r--r-- | drivers/regulator/arizona-ldo1.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/regulator/arizona-ldo1.c b/drivers/regulator/arizona-ldo1.c index b1033d30b504..2248733ea394 100644 --- a/drivers/regulator/arizona-ldo1.c +++ b/drivers/regulator/arizona-ldo1.c @@ -178,6 +178,15 @@ static const struct regulator_init_data arizona_ldo1_default = { .num_consumer_supplies = 1, }; +static int arizona_ldo1_of_get_pdata(struct arizona *arizona) +{ + struct arizona_pdata *pdata = &arizona->pdata; + + pdata->ldoena = arizona_of_get_named_gpio(arizona, "wlf,ldoena", true); + + return 0; +} + static int arizona_ldo1_probe(struct platform_device *pdev) { struct arizona *arizona = dev_get_drvdata(pdev->dev.parent); @@ -186,6 +195,8 @@ static int arizona_ldo1_probe(struct platform_device *pdev) struct arizona_ldo1 *ldo1; int ret; + arizona->external_dcvdd = false; + ldo1 = devm_kzalloc(&pdev->dev, sizeof(*ldo1), GFP_KERNEL); if (!ldo1) return -ENOMEM; @@ -216,6 +227,15 @@ static int arizona_ldo1_probe(struct platform_device *pdev) config.dev = arizona->dev; config.driver_data = ldo1; config.regmap = arizona->regmap; + + if (IS_ENABLED(CONFIG_OF)) { + if (!dev_get_platdata(arizona->dev)) { + ret = arizona_ldo1_of_get_pdata(arizona); + if (ret < 0) + return ret; + } + } + config.ena_gpio = arizona->pdata.ldoena; if (arizona->pdata.ldo1) @@ -223,6 +243,13 @@ static int arizona_ldo1_probe(struct platform_device *pdev) else config.init_data = &ldo1->init_data; + /* + * LDO1 can only be used to supply DCVDD so if it has no + * consumers then DCVDD is supplied externally. + */ + if (config.init_data->num_consumer_supplies == 0) + arizona->external_dcvdd = true; + ldo1->regulator = devm_regulator_register(&pdev->dev, desc, &config); if (IS_ERR(ldo1->regulator)) { ret = PTR_ERR(ldo1->regulator); |