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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2015-10-13 12:45:30 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-10-16 17:59:34 +0100 |
| commit | 0d19208e70b3a65144c7a0b6368f849c57818242 (patch) | |
| tree | 1a53457881eae01b10618f3cafd5e88e30af4e91 | |
| parent | 5abe4f223ed6b820443d3657bd48600692f61c12 (diff) | |
| download | linux-0d19208e70b3a65144c7a0b6368f849c57818242.tar.bz2 | |
regulator: i.MX anatop: Allow supply regulator
The anatop regulators are SoC internal LDO regulators usually supplied
by an external PMIC. This patch adds support for specifying the supply
from the device tree using the vin-supply property.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | Documentation/devicetree/bindings/regulator/anatop-regulator.txt | 1 | ||||
| -rw-r--r-- | drivers/regulator/anatop-regulator.c | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/regulator/anatop-regulator.txt b/Documentation/devicetree/bindings/regulator/anatop-regulator.txt index 758eae24082a..37c4ea076f88 100644 --- a/Documentation/devicetree/bindings/regulator/anatop-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/anatop-regulator.txt @@ -13,6 +13,7 @@ Optional properties: - anatop-delay-reg-offset: Anatop MFD step time register offset - anatop-delay-bit-shift: Bit shift for the step time register - anatop-delay-bit-width: Number of bits used in the step time register +- vin-supply: The supply for this regulator Any property defined as part of the core regulator binding, defined in regulator.txt, can also be used. diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c index 738adfa5332b..7d99f2c8cef3 100644 --- a/drivers/regulator/anatop-regulator.c +++ b/drivers/regulator/anatop-regulator.c @@ -30,6 +30,7 @@ #include <linux/regmap.h> #include <linux/regulator/driver.h> #include <linux/regulator/of_regulator.h> +#include <linux/regulator/machine.h> #define LDO_RAMP_UP_UNIT_IN_CYCLES 64 /* 64 cycles per step */ #define LDO_RAMP_UP_FREQ_IN_MHZ 24 /* cycle based on 24M OSC */ @@ -199,6 +200,7 @@ static int anatop_regulator_probe(struct platform_device *pdev) rdesc->owner = THIS_MODULE; initdata = of_get_regulator_init_data(dev, np, rdesc); + initdata->supply_regulator = "vin"; sreg->initdata = initdata; anatop_np = of_get_parent(np); @@ -262,6 +264,7 @@ static int anatop_regulator_probe(struct platform_device *pdev) rdesc->vsel_reg = sreg->control_reg; rdesc->vsel_mask = ((1 << sreg->vol_bit_width) - 1) << sreg->vol_bit_shift; + rdesc->min_dropout_uV = 125000; config.dev = &pdev->dev; config.init_data = initdata; |