Messages in this thread Patch in this message | | | From | Charles Keepax <> | Subject | [PATCH 4/8] regulator: arizona-ldo1: Add processing of init_data from device tree | Date | Tue, 18 Mar 2014 10:49:13 +0000 |
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Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> --- Documentation/devicetree/bindings/mfd/arizona.txt | 7 +++++ drivers/regulator/arizona-ldo1.c | 26 +++++++++++++++++++++ 2 files changed, 33 insertions(+), 0 deletions(-)
diff --git a/Documentation/devicetree/bindings/mfd/arizona.txt b/Documentation/devicetree/bindings/mfd/arizona.txt index 36a0c3d..d78f1aa 100644 --- a/Documentation/devicetree/bindings/mfd/arizona.txt +++ b/Documentation/devicetree/bindings/mfd/arizona.txt @@ -42,6 +42,13 @@ Optional properties: the chip default will be used. If present exactly five values must be specified. + - wlf,ldo1 : Initial data for the LDO1 regulator, as covered in + Documentation/devicetree/bindings/regulator/regulator.txt + + - DCVDD-supply : Power supply, only needs to be specified if DCVDD is being + externally supplied. As covered in + Documentation/devicetree/bindings/regulator/regulator.txt + Example: codec: wm5102@1a { diff --git a/drivers/regulator/arizona-ldo1.c b/drivers/regulator/arizona-ldo1.c index 6379fd3..a67013f 100644 --- a/drivers/regulator/arizona-ldo1.c +++ b/drivers/regulator/arizona-ldo1.c @@ -19,6 +19,7 @@ #include <linux/platform_device.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> +#include <linux/regulator/of_regulator.h> #include <linux/gpio.h> #include <linux/slab.h> @@ -184,9 +185,34 @@ static const struct regulator_init_data arizona_ldo1_default = { static int arizona_ldo1_get_pdata(struct arizona *arizona, struct regulator_config *config) { + struct arizona_pdata *pdata = &arizona->pdata; + struct arizona_ldo1 *ldo1 = config->driver_data; + struct device_node *np_init, *np_dcvdd; + arizona_of_get_named_gpio(arizona, "wlf,ldoena", true, &config->ena_gpio); + np_init = of_get_child_by_name(arizona->dev->of_node, "wlf,ldo1"); + np_dcvdd = of_parse_phandle(arizona->dev->of_node, "DCVDD-supply", 0); + + if (np_init) { + config->of_node = np_init; + + pdata->ldo1 = of_get_regulator_init_data(arizona->dev, np_init); + + if (np_dcvdd) { + if (np_dcvdd != np_init) + arizona->external_dcvdd = true; + } else { + pdata->ldo1->consumer_supplies = &ldo1->supply; + pdata->ldo1->num_consumer_supplies = 1; + } + + config->init_data = pdata->ldo1; + } else if (np_dcvdd) { + arizona->external_dcvdd = true; + } + return 0; } #else -- 1.7.2.5
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