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| author | Laxman Dewangan <ldewangan@nvidia.com> | 2012-09-04 14:43:39 -0600 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-09-06 07:57:00 +0800 |
| commit | 9394b80c35760d13492a3a895add2891bc64bf86 (patch) | |
| tree | d602dfa31f1e59defe4dc40a7672b8a74bca877f /drivers/mfd/tps6586x.c | |
| parent | 4cbe5a555fa58a79b6ecbb6c531b8bab0650778d (diff) | |
| download | linux-9394b80c35760d13492a3a895add2891bc64bf86.tar.gz linux-9394b80c35760d13492a3a895add2891bc64bf86.tar.bz2 linux-9394b80c35760d13492a3a895add2891bc64bf86.zip | |
regulator: tps6586x: add support for SYS rail
Device have SYS rail which is always ON. It is system power bus. LDO5
and LDO_RTC get powered through this rail internally. Add support for
this rail and make the LDO5/LDO_RTC supply by it. Update document
accordingly.
[swarren: Instantiate the sys regulator from board-harmony-power.c to
avoid regression.]
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/mfd/tps6586x.c')
| -rw-r--r-- | drivers/mfd/tps6586x.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c index 353c34812120..380a3c886d31 100644 --- a/drivers/mfd/tps6586x.c +++ b/drivers/mfd/tps6586x.c @@ -25,6 +25,7 @@ #include <linux/i2c.h> #include <linux/regmap.h> #include <linux/regulator/of_regulator.h> +#include <linux/regulator/machine.h> #include <linux/mfd/core.h> #include <linux/mfd/tps6586x.h> @@ -346,6 +347,7 @@ failed: #ifdef CONFIG_OF static struct of_regulator_match tps6586x_matches[] = { + { .name = "sys", .driver_data = (void *)TPS6586X_ID_SYS }, { .name = "sm0", .driver_data = (void *)TPS6586X_ID_SM_0 }, { .name = "sm1", .driver_data = (void *)TPS6586X_ID_SM_1 }, { .name = "sm2", .driver_data = (void *)TPS6586X_ID_SM_2 }, @@ -369,6 +371,7 @@ static struct tps6586x_platform_data *tps6586x_parse_dt(struct i2c_client *clien struct tps6586x_platform_data *pdata; struct tps6586x_subdev_info *devs; struct device_node *regs; + const char *sys_rail_name = NULL; unsigned int count; unsigned int i, j; int err; @@ -391,12 +394,22 @@ static struct tps6586x_platform_data *tps6586x_parse_dt(struct i2c_client *clien return NULL; for (i = 0, j = 0; i < num && j < count; i++) { + struct regulator_init_data *reg_idata; + if (!tps6586x_matches[i].init_data) continue; + reg_idata = tps6586x_matches[i].init_data; devs[j].name = "tps6586x-regulator"; devs[j].platform_data = tps6586x_matches[i].init_data; devs[j].id = (int)tps6586x_matches[i].driver_data; + if (devs[j].id == TPS6586X_ID_SYS) + sys_rail_name = reg_idata->constraints.name; + + if ((devs[j].id == TPS6586X_ID_LDO_5) || + (devs[j].id == TPS6586X_ID_LDO_RTC)) + reg_idata->supply_regulator = sys_rail_name; + devs[j].of_node = tps6586x_matches[i].of_node; j++; } |