diff options
Diffstat (limited to 'drivers/fsi')
| -rw-r--r-- | drivers/fsi/fsi-occ.c | 41 |
1 files changed, 34 insertions, 7 deletions
diff --git a/drivers/fsi/fsi-occ.c b/drivers/fsi/fsi-occ.c index 8f7f602b909d..abdd37d5507f 100644 --- a/drivers/fsi/fsi-occ.c +++ b/drivers/fsi/fsi-occ.c @@ -44,6 +44,7 @@ struct occ { struct device *sbefifo; char name[32]; int idx; + bool platform_hwmon; u8 sequence_number; void *buffer; void *client_buffer; @@ -598,7 +599,7 @@ int fsi_occ_submit(struct device *dev, const void *request, size_t req_len, } EXPORT_SYMBOL_GPL(fsi_occ_submit); -static int occ_unregister_child(struct device *dev, void *data) +static int occ_unregister_platform_child(struct device *dev, void *data) { struct platform_device *hwmon_dev = to_platform_device(dev); @@ -607,12 +608,25 @@ static int occ_unregister_child(struct device *dev, void *data) return 0; } +static int occ_unregister_of_child(struct device *dev, void *data) +{ + struct platform_device *hwmon_dev = to_platform_device(dev); + + of_device_unregister(hwmon_dev); + if (dev->of_node) + of_node_clear_flag(dev->of_node, OF_POPULATED); + + return 0; +} + static int occ_probe(struct platform_device *pdev) { int rc; u32 reg; + char child_name[32]; struct occ *occ; - struct platform_device *hwmon_dev; + struct platform_device *hwmon_dev = NULL; + struct device_node *hwmon_node; struct device *dev = &pdev->dev; struct platform_device_info hwmon_dev_info = { .parent = dev, @@ -671,10 +685,20 @@ static int occ_probe(struct platform_device *pdev) return rc; } - hwmon_dev_info.id = occ->idx; - hwmon_dev = platform_device_register_full(&hwmon_dev_info); - if (IS_ERR(hwmon_dev)) - dev_warn(dev, "failed to create hwmon device\n"); + hwmon_node = of_get_child_by_name(dev->of_node, hwmon_dev_info.name); + if (hwmon_node) { + snprintf(child_name, sizeof(child_name), "%s.%d", hwmon_dev_info.name, occ->idx); + hwmon_dev = of_platform_device_create(hwmon_node, child_name, dev); + of_node_put(hwmon_node); + } + + if (!hwmon_dev) { + occ->platform_hwmon = true; + hwmon_dev_info.id = occ->idx; + hwmon_dev = platform_device_register_full(&hwmon_dev_info); + if (IS_ERR(hwmon_dev)) + dev_warn(dev, "failed to create hwmon device\n"); + } return 0; } @@ -690,7 +714,10 @@ static int occ_remove(struct platform_device *pdev) occ->buffer = NULL; mutex_unlock(&occ->occ_lock); - device_for_each_child(&pdev->dev, NULL, occ_unregister_child); + if (occ->platform_hwmon) + device_for_each_child(&pdev->dev, NULL, occ_unregister_platform_child); + else + device_for_each_child(&pdev->dev, NULL, occ_unregister_of_child); ida_simple_remove(&occ_ida, occ->idx); |