From 42e59982917a25ad254b74e6e8decee5e684763d Mon Sep 17 00:00:00 2001 From: Heikki Krogerus Date: Mon, 1 Mar 2021 16:42:19 +0200 Subject: mfd: core: Add support for software nodes The old device property API is going to be removed and replaced with the newer software node API. This prepares MFD subsystem for the transition. Signed-off-by: Heikki Krogerus Signed-off-by: Andy Shevchenko Signed-off-by: Lee Jones --- drivers/mfd/mfd-core.c | 9 +++++++++ include/linux/mfd/core.h | 4 ++++ 2 files changed, 13 insertions(+) diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c index fc00aaccb5f7..e24008b94aac 100644 --- a/drivers/mfd/mfd-core.c +++ b/drivers/mfd/mfd-core.c @@ -244,6 +244,12 @@ static int mfd_add_device(struct device *parent, int id, goto fail_of_entry; } + if (cell->swnode) { + ret = device_add_software_node(&pdev->dev, cell->swnode); + if (ret) + goto fail_of_entry; + } + for (r = 0; r < cell->num_resources; r++) { res[r].name = cell->resources[r].name; res[r].flags = cell->resources[r].flags; @@ -304,6 +310,7 @@ fail_of_entry: list_del(&of_entry->list); kfree(of_entry); } + device_remove_software_node(&pdev->dev); fail_alias: regulator_bulk_unregister_supply_alias(&pdev->dev, cell->parent_supplies, @@ -372,6 +379,8 @@ static int mfd_remove_devices_fn(struct device *dev, void *data) regulator_bulk_unregister_supply_alias(dev, cell->parent_supplies, cell->num_parent_supplies); + device_remove_software_node(&pdev->dev); + platform_device_unregister(pdev); return 0; } diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h index 2009c4b936d9..9ec599167fe6 100644 --- a/include/linux/mfd/core.h +++ b/include/linux/mfd/core.h @@ -50,6 +50,7 @@ #define MFD_DEP_LEVEL_HIGH 1 struct irq_domain; +struct software_node; struct property_entry; /* Matches ACPI PNP id, either _HID or _CID, or ACPI _ADR */ @@ -78,6 +79,9 @@ struct mfd_cell { void *platform_data; size_t pdata_size; + /* Software node for the device. */ + const struct software_node *swnode; + /* device properties passed to the sub devices drivers */ const struct property_entry *properties; -- cgit 1.4.1