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regulator: tps65910 regulator: add device tree support 

Add devicetree based initialization support for TI tps65910 regulators.

Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Rhyland Klein 2012-05-08 11:42:41 -07:00 committed by Mark Brown
parent 9447f35a1e
commit 6790178f55
1 changed files with 108 additions and 0 deletions
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108
drivers/regulator/tps65910-regulator.c
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@ -23,6 +23,7 @@
#include <linux/slab.h>
#include <linux/gpio.h>
#include <linux/mfd/tps65910.h>
#include <linux/regulator/of_regulator.h>
#define TPS65910_SUPPLY_STATE_ENABLED 0x1
#define EXT_SLEEP_CONTROL (TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1 | \
@ -1035,6 +1036,105 @@ static int tps65910_set_ext_sleep_config(struct tps65910_reg *pmic,
return ret;
}
#ifdef CONFIG_OF
static struct of_regulator_match tps65910_matches[] = {
{ .name = "VRTC", .driver_data = (void *) &tps65910_regs[0] },
{ .name = "VIO", .driver_data = (void *) &tps65910_regs[1] },
{ .name = "VDD1", .driver_data = (void *) &tps65910_regs[2] },
{ .name = "VDD2", .driver_data = (void *) &tps65910_regs[3] },
{ .name = "VDD3", .driver_data = (void *) &tps65910_regs[4] },
{ .name = "VDIG1", .driver_data = (void *) &tps65910_regs[5] },
{ .name = "VDIG2", .driver_data = (void *) &tps65910_regs[6] },
{ .name = "VPLL", .driver_data = (void *) &tps65910_regs[7] },
{ .name = "VDAC", .driver_data = (void *) &tps65910_regs[8] },
{ .name = "VAUX1", .driver_data = (void *) &tps65910_regs[9] },
{ .name = "VAUX2", .driver_data = (void *) &tps65910_regs[10] },
{ .name = "VAUX33", .driver_data = (void *) &tps65910_regs[11] },
{ .name = "VMMC", .driver_data = (void *) &tps65910_regs[12] },
};
static struct of_regulator_match tps65911_matches[] = {
{ .name = "VRTC", .driver_data = (void *) &tps65911_regs[0] },
{ .name = "VIO", .driver_data = (void *) &tps65911_regs[1] },
{ .name = "VDD1", .driver_data = (void *) &tps65911_regs[2] },
{ .name = "VDD2", .driver_data = (void *) &tps65911_regs[3] },
{ .name = "VDDCTRL", .driver_data = (void *) &tps65911_regs[4] },
{ .name = "LDO1", .driver_data = (void *) &tps65911_regs[5] },
{ .name = "LDO2", .driver_data = (void *) &tps65911_regs[6] },
{ .name = "LDO3", .driver_data = (void *) &tps65911_regs[7] },
{ .name = "LDO4", .driver_data = (void *) &tps65911_regs[8] },
{ .name = "LDO5", .driver_data = (void *) &tps65911_regs[9] },
{ .name = "LDO6", .driver_data = (void *) &tps65911_regs[10] },
{ .name = "LDO7", .driver_data = (void *) &tps65911_regs[11] },
{ .name = "LDO8", .driver_data = (void *) &tps65911_regs[12] },
};
static struct tps65910_board *tps65910_parse_dt_reg_data(
struct platform_device *pdev)
{
struct tps65910_board *pmic_plat_data;
struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
struct device_node *np = pdev->dev.parent->of_node;
struct device_node *regulators;
struct of_regulator_match *matches;
unsigned int prop;
int idx = 0, ret, count;
pmic_plat_data = devm_kzalloc(&pdev->dev, sizeof(*pmic_plat_data),
GFP_KERNEL);
if (!pmic_plat_data) {
dev_err(&pdev->dev, "Failure to alloc pdata for regulators.\n");
return NULL;
}
regulators = of_find_node_by_name(np, "regulators");
switch (tps65910_chip_id(tps65910)) {
case TPS65910:
count = ARRAY_SIZE(tps65910_matches);
matches = tps65910_matches;
break;
case TPS65911:
count = ARRAY_SIZE(tps65911_matches);
matches = tps65911_matches;
break;
default:
pr_err("Invalid tps chip version\n");
return NULL;
}
ret = of_regulator_match(pdev->dev.parent, regulators, matches, count);
if (ret < 0) {
dev_err(&pdev->dev, "Error parsing regulator init data: %d\n",
ret);
return NULL;
}
for (idx = 0; idx < count; idx++) {
if (!matches[idx].init_data || !matches[idx].of_node)
continue;
pmic_plat_data->tps65910_pmic_init_data[idx] =
matches[idx].init_data;
ret = of_property_read_u32(matches[idx].of_node,
"ti,regulator-ext-sleep-control", &prop);
if (!ret)
pmic_plat_data->regulator_ext_sleep_control[idx] = prop;
}
return pmic_plat_data;
}
#else
static inline struct tps65910_board *tps65910_parse_dt_reg_data(
struct platform_device *pdev)
{
return 0;
}
#endif
static __devinit int tps65910_probe(struct platform_device *pdev)
{
struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
@ -1047,6 +1147,9 @@ static __devinit int tps65910_probe(struct platform_device *pdev)
int i, err;
pmic_plat_data = dev_get_platdata(tps65910->dev);
if (!pmic_plat_data && tps65910->dev->of_node)
pmic_plat_data = tps65910_parse_dt_reg_data(pdev);
if (!pmic_plat_data)
return -EINVAL;
@ -1154,6 +1257,11 @@ static __devinit int tps65910_probe(struct platform_device *pdev)
config.driver_data = pmic;
config.regmap = tps65910->regmap;
#ifdef CONFIG_OF
config.of_node = of_find_node_by_name(tps65910->dev->of_node,
info->name);
#endif
rdev = regulator_register(&pmic->desc[i], &config);
if (IS_ERR(rdev)) {
dev_err(tps65910->dev,