diff options
| author | Shawn Guo <shawn.guo@linaro.org> | 2011-12-21 19:00:46 +0400 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-12-22 15:10:45 +0400 |
| commit | 93bcb23b38f634e8fb4ddda0d3f4862fda5cedae (patch) | |
| tree | 9f087497a7511022c8e740c3e16bb3703efc4fda /drivers/regulator/mc13892-regulator.c | |
| parent | 3a5d03158d0174ae700e15b63eab2023f27aeb88 (diff) | |
| download | linux-93bcb23b38f634e8fb4ddda0d3f4862fda5cedae.tar.xz | |
regulator: mc13892: add device tree probe support
It adds device tree probe support for mc13892-regulator driver.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/regulator/mc13892-regulator.c')
| -rw-r--r-- | drivers/regulator/mc13892-regulator.c | 43 |
1 files changed, 32 insertions, 11 deletions
diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c index 2824804a2892..46bfa4ae2afd 100644 --- a/drivers/regulator/mc13892-regulator.c +++ b/drivers/regulator/mc13892-regulator.c @@ -527,18 +527,27 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev) struct mc13xxx *mc13892 = dev_get_drvdata(pdev->dev.parent); struct mc13xxx_regulator_platform_data *pdata = dev_get_platdata(&pdev->dev); - struct mc13xxx_regulator_init_data *init_data; + struct mc13xxx_regulator_init_data *mc13xxx_data; int i, ret; + int num_regulators = 0; u32 val; + num_regulators = mc13xxx_get_num_regulators_dt(pdev); + if (num_regulators <= 0 && pdata) + num_regulators = pdata->num_regulators; + if (num_regulators <= 0) + return -EINVAL; + priv = kzalloc(sizeof(*priv) + - pdata->num_regulators * sizeof(priv->regulators[0]), + num_regulators * sizeof(priv->regulators[0]), GFP_KERNEL); if (!priv) return -ENOMEM; + priv->num_regulators = num_regulators; priv->mc13xxx_regulators = mc13892_regulators; priv->mc13xxx = mc13892; + platform_set_drvdata(pdev, priv); mc13xxx_lock(mc13892); ret = mc13xxx_reg_read(mc13892, MC13892_REVISION, &val); @@ -569,11 +578,27 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev) = mc13892_vcam_set_mode; mc13892_regulators[MC13892_VCAM].desc.ops->get_mode = mc13892_vcam_get_mode; - for (i = 0; i < pdata->num_regulators; i++) { - init_data = &pdata->regulators[i]; + + mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13892_regulators, + ARRAY_SIZE(mc13892_regulators)); + for (i = 0; i < num_regulators; i++) { + struct regulator_init_data *init_data; + struct regulator_desc *desc; + struct device_node *node = NULL; + int id; + + if (mc13xxx_data) { + id = mc13xxx_data[i].id; + init_data = mc13xxx_data[i].init_data; + node = mc13xxx_data[i].node; + } else { + id = pdata->regulators[i].id; + init_data = pdata->regulators[i].init_data; + } + desc = &mc13892_regulators[id].desc; + priv->regulators[i] = regulator_register( - &mc13892_regulators[init_data->id].desc, - &pdev->dev, init_data->init_data, priv, NULL); + desc, &pdev->dev, init_data, priv, node); if (IS_ERR(priv->regulators[i])) { dev_err(&pdev->dev, "failed to register regulator %s\n", @@ -583,8 +608,6 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev) } } - platform_set_drvdata(pdev, priv); - return 0; err: while (--i >= 0) @@ -600,13 +623,11 @@ err_free: static int __devexit mc13892_regulator_remove(struct platform_device *pdev) { struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev); - struct mc13xxx_regulator_platform_data *pdata = - dev_get_platdata(&pdev->dev); int i; platform_set_drvdata(pdev, NULL); - for (i = 0; i < pdata->num_regulators; i++) + for (i = 0; i < priv->num_regulators; i++) regulator_unregister(priv->regulators[i]); kfree(priv); |