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regulator: mc13783: Add device tree probe support 

Patch adds device tree probe support for mc13783-regulator driver.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Mark Brown <broonie@sirena.org.uk>
This commit is contained in:
Alexander Shiyan 2013-04-27 10:29:25 +04:00 committed by Mark Brown
parent eb0d8e7a14
commit 86b139f0f3
2 changed files with 61 additions and 17 deletions
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36
Documentation/devicetree/bindings/mfd/mc13xxx.txt
View File

@ -10,10 +10,40 @@ Optional properties:
- fsl,mc13xxx-uses-touch : Indicate the touchscreen controller is being used
Sub-nodes:
- regulators : Contain the regulator nodes. The MC13892 regulators are
bound using their names as listed below with their registers and bits
for enabling.
- regulators : Contain the regulator nodes. The regulators are bound using
their names as listed below with their registers and bits for enabling.
MC13783 regulators:
sw1a : regulator SW1A (register 24, bit 0)
sw1b : regulator SW1B (register 25, bit 0)
sw2a : regulator SW2A (register 26, bit 0)
sw2b : regulator SW2B (register 27, bit 0)
sw3 : regulator SW3 (register 29, bit 20)
vaudio : regulator VAUDIO (register 32, bit 0)
viohi : regulator VIOHI (register 32, bit 3)
violo : regulator VIOLO (register 32, bit 6)
vdig : regulator VDIG (register 32, bit 9)
vgen : regulator VGEN (register 32, bit 12)
vrfdig : regulator VRFDIG (register 32, bit 15)
vrfref : regulator VRFREF (register 32, bit 18)
vrfcp : regulator VRFCP (register 32, bit 21)
vsim : regulator VSIM (register 33, bit 0)
vesim : regulator VESIM (register 33, bit 3)
vcam : regulator VCAM (register 33, bit 6)
vrfbg : regulator VRFBG (register 33, bit 9)
vvib : regulator VVIB (register 33, bit 11)
vrf1 : regulator VRF1 (register 33, bit 12)
vrf2 : regulator VRF2 (register 33, bit 15)
vmmc1 : regulator VMMC1 (register 33, bit 18)
vmmc2 : regulator VMMC2 (register 33, bit 21)
gpo1 : regulator GPO1 (register 34, bit 6)
gpo2 : regulator GPO2 (register 34, bit 8)
gpo3 : regulator GPO3 (register 34, bit 10)
gpo4 : regulator GPO4 (register 34, bit 12)
pwgt1spi : regulator PWGT1SPI (register 34, bit 15)
pwgt2spi : regulator PWGT2SPI (register 34, bit 16)
MC13892 regulators:
vcoincell : regulator VCOINCELL (register 13, bit 23)
sw1 : regulator SW1 (register 24, bit 0)
sw2 : regulator SW2 (register 25, bit 0)

42
drivers/regulator/mc13783-regulator.c
View File

@ -398,33 +398,51 @@ static int mc13783_regulator_probe(struct platform_device *pdev)
struct mc13xxx *mc13783 = 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;
struct regulator_config config = { };
int i, ret;
int i, ret, num_regulators;
dev_dbg(&pdev->dev, "%s id %d\n", __func__, pdev->id);
num_regulators = mc13xxx_get_num_regulators_dt(pdev);
if (!pdata)
if (num_regulators <= 0 && pdata)
num_regulators = pdata->num_regulators;
if (num_regulators <= 0)
return -EINVAL;
priv = devm_kzalloc(&pdev->dev, 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 = mc13783_regulators;
priv->mc13xxx = mc13783;
platform_set_drvdata(pdev, priv);
for (i = 0; i < pdata->num_regulators; i++) {
mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13783_regulators,
ARRAY_SIZE(mc13783_regulators));
for (i = 0; i < priv->num_regulators; i++) {
struct regulator_init_data *init_data;
struct regulator_desc *desc;
struct device_node *node = NULL;
int id;
init_data = &pdata->regulators[i];
desc = &mc13783_regulators[init_data->id].desc;
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 = &mc13783_regulators[id].desc;
config.dev = &pdev->dev;
config.init_data = init_data->init_data;
config.init_data = init_data;
config.driver_data = priv;
config.of_node = node;
priv->regulators[i] = regulator_register(desc, &config);
if (IS_ERR(priv->regulators[i])) {
@ -435,8 +453,6 @@ static int mc13783_regulator_probe(struct platform_device *pdev)
}
}
platform_set_drvdata(pdev, priv);
return 0;
err:
while (--i >= 0)
@ -448,13 +464,11 @@ static int mc13783_regulator_probe(struct platform_device *pdev)
static int mc13783_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]);
return 0;