On Thu, 19 Jan 2017, Enric Balletbo i Serra wrote:
> From: Stephen Barber <smbar...@chromium.org>
>
> If the EC supports RTC host commands, expose an RTC device.
>
> Signed-off-by: Stephen Barber <smbar...@chromium.org>
> Signed-off-by: Enric Balletbo i Serra <enric.balle...@collabora.com>
> ---
> drivers/platform/chrome/cros_ec_dev.c | 22 ++++++++++++++++++++++
> 1 file changed, 22 insertions(+)
This still needs an Ack.
> diff --git a/drivers/platform/chrome/cros_ec_dev.c
> b/drivers/platform/chrome/cros_ec_dev.c
> index 47268ec..ebe029d 100644
> --- a/drivers/platform/chrome/cros_ec_dev.c
> +++ b/drivers/platform/chrome/cros_ec_dev.c
> @@ -383,6 +383,24 @@ static void cros_ec_sensors_register(struct cros_ec_dev
> *ec)
> kfree(msg);
> }
>
> +static const struct mfd_cell cros_ec_rtc_devs[] = {
> + {
> + .name = "cros-ec-rtc",
> + .id = -1,
> + },
> +};
> +
> +static void cros_ec_rtc_register(struct cros_ec_dev *ec)
> +{
> + int ret;
> +
> + ret = mfd_add_devices(ec->dev, 0, cros_ec_rtc_devs,
> + ARRAY_SIZE(cros_ec_rtc_devs),
> + NULL, 0, NULL);
> + if (ret)
> + dev_err(ec->dev, "failed to add cros-ec-rtc device: %d\n", ret);
> +}
> +
> static int ec_device_probe(struct platform_device *pdev)
> {
> int retval = -ENOMEM;
> @@ -441,6 +459,10 @@ static int ec_device_probe(struct platform_device *pdev)
> if (cros_ec_check_features(ec, EC_FEATURE_MOTION_SENSE))
> cros_ec_sensors_register(ec);
>
> + /* check whether this EC instance has RTC host command support */
> + if (cros_ec_check_features(ec, EC_FEATURE_RTC))
> + cros_ec_rtc_register(ec);
> +
> return 0;
>
> dev_reg_failed:
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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