From 95a4d07fdecbd52a2e683607d561a200d2522033 Mon Sep 17 00:00:00 2001 From: Enric Balletbo i Serra Date: Wed, 18 Apr 2018 12:24:01 +0200 Subject: [PATCH] mfd: cros_ec_dev: Register cros-ec-rtc driver as a subdevice Check whether this EC instance has RTC host command support and instatiate the RTC driver as a subdevice in such case. Signed-off-by: Enric Balletbo i Serra Reviewed-by: Gwendal Grignou Reviewed-by: Andy Shevchenko Signed-off-by: Lee Jones --- drivers/mfd/cros_ec_dev.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c index 5a7d4e1dea70..a393b3c11aa0 100644 --- a/drivers/mfd/cros_ec_dev.c +++ b/drivers/mfd/cros_ec_dev.c @@ -383,6 +383,10 @@ static void cros_ec_sensors_register(struct cros_ec_dev *ec) kfree(msg); } +static const struct mfd_cell cros_ec_rtc_cells[] = { + { .name = "cros-ec-rtc" } +}; + static int ec_device_probe(struct platform_device *pdev) { int retval = -ENOMEM; @@ -422,6 +426,18 @@ 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)) { + retval = mfd_add_devices(ec->dev, PLATFORM_DEVID_AUTO, + cros_ec_rtc_cells, + ARRAY_SIZE(cros_ec_rtc_cells), + NULL, 0, NULL); + if (retval) + dev_err(ec->dev, + "failed to add cros-ec-rtc device: %d\n", + retval); + } + /* Take control of the lightbar from the EC. */ lb_manual_suspend_ctrl(ec, 1); -- 2.45.2