diff options
| author | Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2014-04-30 10:40:42 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-05-01 19:53:50 +0200 |
| commit | de5d05637f7e036a8122757b18ca6cfd1300f233 (patch) | |
| tree | b20cfbacd21c5222fd44eaf05011ab8026ee2314 /drivers/regulator | |
| parent | regulator: s2mps11: Document external GPIO control (diff) | |
| download | linux-de5d05637f7e036a8122757b18ca6cfd1300f233.tar.xz linux-de5d05637f7e036a8122757b18ca6cfd1300f233.zip | |
regulator: s2mps11: Allow GPIO 0 to be used as external control on S2MPS14
GPIO 0 is a valid GPIO so allow using it as external control for
S2MPS14 regulators.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/regulator')
| -rw-r--r-- | drivers/regulator/s2mps11.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c index 6dad0aa74a47..1583d4eaf911 100644 --- a/drivers/regulator/s2mps11.c +++ b/drivers/regulator/s2mps11.c @@ -412,7 +412,7 @@ static int s2mps14_regulator_enable(struct regulator_dev *rdev) if (s2mps11->s2mps14_suspend_state & (1 << rdev_get_id(rdev))) val = S2MPS14_ENABLE_SUSPEND; - else if (s2mps11->ext_control_gpio[rdev_get_id(rdev)]) + else if (gpio_is_valid(s2mps11->ext_control_gpio[rdev_get_id(rdev)])) val = S2MPS14_ENABLE_EXT_CONTROL; else val = rdev->desc->enable_mask; @@ -593,9 +593,7 @@ static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev, gpio[reg] = of_get_named_gpio(rdata[reg].of_node, "samsung,ext-control-gpios", 0); - if (!gpio_is_valid(gpio[reg])) - gpio[reg] = 0; - else + if (gpio_is_valid(gpio[reg])) dev_dbg(&pdev->dev, "Using GPIO %d for ext-control over %d/%s\n", gpio[reg], reg, rdata[reg].name); } @@ -658,6 +656,12 @@ static int s2mps11_pmic_probe(struct platform_device *pdev) GFP_KERNEL); if (!s2mps11->ext_control_gpio) return -ENOMEM; + /* + * 0 is a valid GPIO so initialize all GPIO-s to negative value + * to indicate that external control won't be used for this regulator. + */ + for (i = 0; i < s2mps11->rdev_num; i++) + s2mps11->ext_control_gpio[i] = -EINVAL; if (!iodev->dev->of_node) { if (iodev->pdata) { @@ -687,6 +691,7 @@ common_reg: config.dev = &pdev->dev; config.regmap = iodev->regmap_pmic; config.driver_data = s2mps11; + config.ena_gpio_flags = GPIOF_OUT_INIT_HIGH; for (i = 0; i < s2mps11->rdev_num; i++) { struct regulator_dev *regulator; @@ -697,12 +702,7 @@ common_reg: config.init_data = rdata[i].init_data; config.of_node = rdata[i].of_node; } - - if (s2mps11->ext_control_gpio[i]) { - config.ena_gpio = s2mps11->ext_control_gpio[i]; - config.ena_gpio_flags = GPIOF_OUT_INIT_HIGH; - } else - config.ena_gpio = config.ena_gpio_flags = 0; + config.ena_gpio = s2mps11->ext_control_gpio[i]; regulator = devm_regulator_register(&pdev->dev, ®ulators[i], &config); @@ -713,7 +713,7 @@ common_reg: goto out; } - if (s2mps11->ext_control_gpio[i]) { + if (gpio_is_valid(s2mps11->ext_control_gpio[i])) { ret = s2mps14_pmic_enable_ext_control(s2mps11, regulator); if (ret < 0) { |