diff options
Diffstat (limited to 'drivers/mfd/cros_ec_dev.c')
| -rw-r--r-- | drivers/mfd/cros_ec_dev.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c index d07b43d7c761..a9700436e5e5 100644 --- a/drivers/mfd/cros_ec_dev.c +++ b/drivers/mfd/cros_ec_dev.c @@ -5,6 +5,7 @@ * Copyright (C) 2014 Google, Inc. */ +#include <linux/dmi.h> #include <linux/kconfig.h> #include <linux/mfd/core.h> #include <linux/module.h> @@ -112,10 +113,13 @@ static const struct cros_feature_to_cells cros_subdevices[] = { static const struct mfd_cell cros_ec_platform_cells[] = { { .name = "cros-ec-chardev", }, { .name = "cros-ec-debugfs", }, - { .name = "cros-ec-lightbar", }, { .name = "cros-ec-sysfs", }, }; +static const struct mfd_cell cros_ec_lightbar_cells[] = { + { .name = "cros-ec-lightbar", } +}; + static const struct mfd_cell cros_ec_vbc_cells[] = { { .name = "cros-ec-vbc", } }; @@ -207,6 +211,20 @@ static int ec_device_probe(struct platform_device *pdev) } /* + * Lightbar is a special case. Newer devices support autodetection, + * but older ones do not. + */ + if (cros_ec_check_features(ec, EC_FEATURE_LIGHTBAR) || + dmi_match(DMI_PRODUCT_NAME, "Link")) { + retval = mfd_add_hotplug_devices(ec->dev, + cros_ec_lightbar_cells, + ARRAY_SIZE(cros_ec_lightbar_cells)); + if (retval) + dev_warn(ec->dev, "failed to add lightbar: %d\n", + retval); + } + + /* * The PD notifier driver cell is separate since it only needs to be * explicitly added on platforms that don't have the PD notifier ACPI * device entry defined. |