static int phylink_parse_fixedlink(struct phylink *pl, struct fwnode_handle *fwnode) { struct fwnode_handle *fixed_node; const struct phy_setting *s; struct gpio_desc *desc; u32 speed; int ret; fixed_node = fwnode_get_named_child_node(fwnode, "fixed-link"); if (fixed_node) { ret = fwnode_property_read_u32(fixed_node, "speed", &speed); pl->link_config.speed = speed; pl->link_config.duplex = DUPLEX_HALF; if (fwnode_property_read_bool(fixed_node, "full-duplex")) pl->link_config.duplex = DUPLEX_FULL; /* We treat the "pause" and "asym-pause" terminology as * defining the link partner's ability. */ if (fwnode_property_read_bool(fixed_node, "pause")) pl->link_config.pause |= MLO_PAUSE_SYM; if (fwnode_property_read_bool(fixed_node, "asym-pause")) pl->link_config.pause |= MLO_PAUSE_ASYM; if (ret == 0) { desc = fwnode_get_named_gpiod(fixed_node, "link-gpios", 0, GPIOD_IN, "?"); if (!IS_ERR(desc)) pl->link_gpio = desc; else if (desc == ERR_PTR(-EPROBE_DEFER)) ret = -EPROBE_DEFER; } fwnode_handle_put(fixed_node); if (ret) return ret; } else { u32 prop[5]; ret = fwnode_property_read_u32_array(fwnode, "fixed-link", NULL, 0); if (ret != ARRAY_SIZE(prop)) { netdev_err(pl->netdev, "broken fixed-link?\n"); return -EINVAL; } ret = fwnode_property_read_u32_array(fwnode, "fixed-link", prop, ARRAY_SIZE(prop)); if (!ret) { pl->link_config.duplex = prop[1] ? DUPLEX_FULL : DUPLEX_HALF; pl->link_config.speed = prop[2]; if (prop[3]) pl->link_config.pause |= MLO_PAUSE_SYM; if (prop[4]) pl->link_config.pause |= MLO_PAUSE_ASYM; } } if (pl->link_config.speed > SPEED_1000 && pl->link_config.duplex != DUPLEX_FULL) netdev_warn(pl->netdev, "fixed link specifies half duplex for %dMbps link?\n", pl->link_config.speed); bitmap_fill(pl->supported, __ETHTOOL_LINK_MODE_MASK_NBITS); linkmode_copy(pl->link_config.advertising, pl->supported); phylink_validate(pl, pl->supported, &pl->link_config); s = phy_lookup_setting(pl->link_config.speed, pl->link_config.duplex, pl->supported, __ETHTOOL_LINK_MODE_MASK_NBITS, true); linkmode_zero(pl->supported); phylink_set(pl->supported, MII); if (s) { __set_bit(s->bit, pl->supported); } else { netdev_warn(pl->netdev, "fixed link %s duplex %dMbps not recognised\n", pl->link_config.duplex == DUPLEX_FULL ? "full" : "half", pl->link_config.speed); } linkmode_and(pl->link_config.advertising, pl->link_config.advertising, pl->supported); pl->link_config.link = 1; pl->link_config.an_complete = 1; return 0; }
static int etm_probe(struct amba_device *adev, const struct amba_id *id) { int ret; void __iomem *base; struct device *dev = &adev->dev; struct coresight_platform_data *pdata = NULL; struct etm_drvdata *drvdata; struct resource *res = &adev->res; struct coresight_desc desc = { 0 }; drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL); if (!drvdata) return -ENOMEM; drvdata->use_cp14 = fwnode_property_read_bool(dev->fwnode, "arm,cp14"); dev_set_drvdata(dev, drvdata); /* Validity for the resource is already checked by the AMBA core */ base = devm_ioremap_resource(dev, res); if (IS_ERR(base)) return PTR_ERR(base); drvdata->base = base; spin_lock_init(&drvdata->spinlock); drvdata->atclk = devm_clk_get(&adev->dev, "atclk"); /* optional */ if (!IS_ERR(drvdata->atclk)) { ret = clk_prepare_enable(drvdata->atclk); if (ret) return ret; } drvdata->cpu = coresight_get_cpu(dev); desc.name = devm_kasprintf(dev, GFP_KERNEL, "etm%d", drvdata->cpu); if (!desc.name) return -ENOMEM; cpus_read_lock(); etmdrvdata[drvdata->cpu] = drvdata; if (smp_call_function_single(drvdata->cpu, etm_init_arch_data, drvdata, 1)) dev_err(dev, "ETM arch init failed\n"); if (!etm_count++) { cpuhp_setup_state_nocalls_cpuslocked(CPUHP_AP_ARM_CORESIGHT_STARTING, "arm/coresight:starting", etm_starting_cpu, etm_dying_cpu); ret = cpuhp_setup_state_nocalls_cpuslocked(CPUHP_AP_ONLINE_DYN, "arm/coresight:online", etm_online_cpu, NULL); if (ret < 0) goto err_arch_supported; hp_online = ret; } cpus_read_unlock(); if (etm_arch_supported(drvdata->arch) == false) { ret = -EINVAL; goto err_arch_supported; } etm_init_trace_id(drvdata); etm_set_default(&drvdata->config); pdata = coresight_get_platform_data(dev); if (IS_ERR(pdata)) { ret = PTR_ERR(pdata); goto err_arch_supported; } adev->dev.platform_data = pdata; desc.type = CORESIGHT_DEV_TYPE_SOURCE; desc.subtype.source_subtype = CORESIGHT_DEV_SUBTYPE_SOURCE_PROC; desc.ops = &etm_cs_ops; desc.pdata = pdata; desc.dev = dev; desc.groups = coresight_etm_groups; drvdata->csdev = coresight_register(&desc); if (IS_ERR(drvdata->csdev)) { ret = PTR_ERR(drvdata->csdev); goto err_arch_supported; } ret = etm_perf_symlink(drvdata->csdev, true); if (ret) { coresight_unregister(drvdata->csdev); goto err_arch_supported; } pm_runtime_put(&adev->dev); dev_info(&drvdata->csdev->dev, "%s initialized\n", (char *)coresight_get_uci_data(id)); if (boot_enable) { coresight_enable(drvdata->csdev); drvdata->boot_enable = true; } return 0; err_arch_supported: if (--etm_count == 0) { cpuhp_remove_state_nocalls(CPUHP_AP_ARM_CORESIGHT_STARTING); if (hp_online) cpuhp_remove_state_nocalls(hp_online); } return ret; }
/* * Translate properties into platform_data */ static struct gpio_keys_platform_data * gpio_keys_get_devtree_pdata(struct device *dev) { struct gpio_keys_platform_data *pdata; struct gpio_keys_button *button; struct fwnode_handle *child; int nbuttons; nbuttons = device_get_child_node_count(dev); if (nbuttons == 0) return ERR_PTR(-ENODEV); pdata = devm_kzalloc(dev, sizeof(*pdata) + nbuttons * sizeof(*button), GFP_KERNEL); if (!pdata) return ERR_PTR(-ENOMEM); button = (struct gpio_keys_button *)(pdata + 1); pdata->buttons = button; pdata->nbuttons = nbuttons; pdata->rep = device_property_read_bool(dev, "autorepeat"); device_property_read_string(dev, "label", &pdata->name); device_for_each_child_node(dev, child) { if (is_of_node(child)) button->irq = irq_of_parse_and_map(to_of_node(child), 0); if (fwnode_property_read_u32(child, "linux,code", &button->code)) { dev_err(dev, "Button without keycode\n"); fwnode_handle_put(child); return ERR_PTR(-EINVAL); } fwnode_property_read_string(child, "label", &button->desc); if (fwnode_property_read_u32(child, "linux,input-type", &button->type)) button->type = EV_KEY; button->wakeup = fwnode_property_read_bool(child, "wakeup-source") || /* legacy name */ fwnode_property_read_bool(child, "gpio-key,wakeup"); button->can_disable = fwnode_property_read_bool(child, "linux,can-disable"); if (fwnode_property_read_u32(child, "debounce-interval", &button->debounce_interval)) button->debounce_interval = 5; button++; } return pdata; }