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    Subject[PATCH v6 06/15] mfd: input: bd71828: Add power-key support
    Use gpio_keys to send power input-event to user-space when power
    button (short) press is detected.

    Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
    Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
    ---

    No changes since v5

    drivers/mfd/rohm-bd71828.c | 26 ++++++++++++++++++++++++++
    1 file changed, 26 insertions(+)

    diff --git a/drivers/mfd/rohm-bd71828.c b/drivers/mfd/rohm-bd71828.c
    index 7f445d699fd9..b892b50ec555 100644
    --- a/drivers/mfd/rohm-bd71828.c
    +++ b/drivers/mfd/rohm-bd71828.c
    @@ -4,7 +4,9 @@
    //
    // ROHM BD71828 PMIC driver

    +#include <linux/gpio_keys.h>
    #include <linux/i2c.h>
    +#include <linux/input.h>
    #include <linux/interrupt.h>
    #include <linux/ioport.h>
    #include <linux/irq.h>
    @@ -15,6 +17,18 @@
    #include <linux/regmap.h>
    #include <linux/types.h>

    +static struct gpio_keys_button button = {
    + .code = KEY_POWER,
    + .gpio = -1,
    + .type = EV_KEY,
    +};
    +
    +static struct gpio_keys_platform_data bd71828_powerkey_data = {
    + .buttons = &button,
    + .nbuttons = 1,
    + .name = "bd71828-pwrkey",
    +};
    +
    static const struct resource rtc_irqs[] = {
    DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC0, "bd71828-rtc-alm-0"),
    DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC1, "bd71828-rtc-alm-1"),
    @@ -35,6 +49,10 @@ static struct mfd_cell bd71828_mfd_cells[] = {
    .name = "bd71828-rtc",
    .resources = rtc_irqs,
    .num_resources = ARRAY_SIZE(rtc_irqs),
    + }, {
    + .name = "gpio-keys",
    + .platform_data = &bd71828_powerkey_data,
    + .pdata_size = sizeof(bd71828_powerkey_data),
    },
    };

    @@ -288,6 +306,14 @@ static int bd71828_i2c_probe(struct i2c_client *i2c)
    dev_dbg(&i2c->dev, "Registered %d IRQs for chip\n",
    bd71828_irq_chip.num_irqs);

    + ret = regmap_irq_get_virq(irq_data, BD71828_INT_SHORTPUSH);
    + if (ret < 0) {
    + dev_err(&i2c->dev, "Failed to get the power-key IRQ\n");
    + return ret;
    + }
    +
    + button.irq = ret;
    +
    ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_AUTO,
    bd71828_mfd_cells,
    ARRAY_SIZE(bd71828_mfd_cells), NULL, 0,
    --
    2.21.0

    --
    Matti Vaittinen, Linux device drivers
    ROHM Semiconductors, Finland SWDC
    Kiviharjunlenkki 1E
    90220 OULU
    FINLAND

    ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
    Simon says - in Latin please.
    ~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
    Thanks to Simon Glass for the translation =]

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