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    SubjectApplied "regulator: s5m8767: Pass descriptor instead of GPIO number" to the regulator tree
    Date
    The patch

    regulator: s5m8767: Pass descriptor instead of GPIO number

    has been applied to the regulator tree at

    https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git

    All being well this means that it will be integrated into the linux-next
    tree (usually sometime in the next 24 hours) and sent to Linus during
    the next merge window (or sooner if it is a bug fix), however if
    problems are discovered then the patch may be dropped or reverted.

    You may get further e-mails resulting from automated or manual testing
    and review of the tree, please engage with people reporting problems and
    send followup patches addressing any issues that are reported if needed.

    If any updates are required or you are submitting further changes they
    should be sent as incremental updates against current git, existing
    patches will not be replaced.

    Please add any relevant lists and maintainers to the CCs when replying
    to this mail.

    Thanks,
    Mark

    From 9ae5cc75ceaacf69cc50b9fd4713276c2aa62eb9 Mon Sep 17 00:00:00 2001
    From: Linus Walleij <linus.walleij@linaro.org>
    Date: Mon, 14 May 2018 10:06:32 +0200
    Subject: [PATCH] regulator: s5m8767: Pass descriptor instead of GPIO number

    Instead of passing a global GPIO number for the enable GPIO, pass
    a descriptor looked up from the device tree node for the
    regulator.

    This regulator supports passing platform data, but enable/sleep
    regulators are looked up from the device tree exclusively, so
    we can need not touch other files.

    Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
    Acked-by: Lee Jones <lee.jones@linaro.org>
    Signed-off-by: Mark Brown <broonie@kernel.org>
    ---
    drivers/regulator/s5m8767.c | 26 +++++++++++++++-----------
    include/linux/mfd/samsung/core.h | 4 +++-
    2 files changed, 18 insertions(+), 12 deletions(-)

    diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c
    index 4836947e1521..b8443a360646 100644
    --- a/drivers/regulator/s5m8767.c
    +++ b/drivers/regulator/s5m8767.c
    @@ -13,6 +13,7 @@

    #include <linux/err.h>
    #include <linux/of_gpio.h>
    +#include <linux/gpio/consumer.h>
    #include <linux/module.h>
    #include <linux/platform_device.h>
    #include <linux/regulator/driver.h>
    @@ -459,15 +460,14 @@ static void s5m8767_regulator_config_ext_control(struct s5m8767_info *s5m8767,
    return;
    }

    - if (!gpio_is_valid(rdata->ext_control_gpio)) {
    + if (!rdata->ext_control_gpiod) {
    dev_warn(s5m8767->dev,
    "ext-control for %s: GPIO not valid, ignoring\n",
    - rdata->reg_node->name);
    + rdata->reg_node->name);
    return;
    }

    - config->ena_gpio = rdata->ext_control_gpio;
    - config->ena_gpio_flags = GPIOF_OUT_INIT_HIGH;
    + config->ena_gpiod = rdata->ext_control_gpiod;
    }

    /*
    @@ -577,8 +577,14 @@ static int s5m8767_pmic_dt_parse_pdata(struct platform_device *pdev,
    continue;
    }

    - rdata->ext_control_gpio = of_get_named_gpio(reg_np,
    - "s5m8767,pmic-ext-control-gpios", 0);
    + rdata->ext_control_gpiod = devm_gpiod_get_from_of_node(&pdev->dev,
    + reg_np,
    + "s5m8767,pmic-ext-control-gpios",
    + 0,
    + GPIOD_OUT_HIGH,
    + "s5m8767");
    + if (IS_ERR(rdata->ext_control_gpiod))
    + return PTR_ERR(rdata->ext_control_gpiod);

    rdata->id = i;
    rdata->initdata = of_get_regulator_init_data(
    @@ -954,10 +960,8 @@ static int s5m8767_pmic_probe(struct platform_device *pdev)
    config.driver_data = s5m8767;
    config.regmap = iodev->regmap_pmic;
    config.of_node = pdata->regulators[i].reg_node;
    - config.ena_gpio = -EINVAL;
    - config.ena_gpio_flags = 0;
    - config.ena_gpio_initialized = true;
    - if (gpio_is_valid(pdata->regulators[i].ext_control_gpio))
    + config.ena_gpiod = NULL;
    + if (pdata->regulators[i].ext_control_gpiod)
    s5m8767_regulator_config_ext_control(s5m8767,
    &pdata->regulators[i], &config);

    @@ -970,7 +974,7 @@ static int s5m8767_pmic_probe(struct platform_device *pdev)
    return ret;
    }

    - if (gpio_is_valid(pdata->regulators[i].ext_control_gpio)) {
    + if (pdata->regulators[i].ext_control_gpiod) {
    ret = s5m8767_enable_ext_control(s5m8767, rdev);
    if (ret < 0) {
    dev_err(s5m8767->dev,
    diff --git a/include/linux/mfd/samsung/core.h b/include/linux/mfd/samsung/core.h
    index 5a23dd4df432..28f4ae76271d 100644
    --- a/include/linux/mfd/samsung/core.h
    +++ b/include/linux/mfd/samsung/core.h
    @@ -39,6 +39,8 @@
    #define STEP_12_5_MV 12500
    #define STEP_6_25_MV 6250

    +struct gpio_desc;
    +
    enum sec_device_type {
    S5M8751X,
    S5M8763X,
    @@ -151,7 +153,7 @@ struct sec_regulator_data {
    int id;
    struct regulator_init_data *initdata;
    struct device_node *reg_node;
    - int ext_control_gpio;
    + struct gpio_desc *ext_control_gpiod;
    };

    /*
    --
    2.17.0
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