diff options
| -rw-r--r-- | drivers/firmware/xilinx/zynqmp.c | 2 | ||||
| -rw-r--r-- | drivers/interconnect/core.c | 68 | ||||
| -rw-r--r-- | drivers/interconnect/imx/imx.c | 20 | ||||
| -rw-r--r-- | drivers/interconnect/qcom/icc-rpm.c | 29 | ||||
| -rw-r--r-- | drivers/interconnect/qcom/icc-rpmh.c | 30 | ||||
| -rw-r--r-- | drivers/interconnect/qcom/msm8974.c | 20 | ||||
| -rw-r--r-- | drivers/interconnect/qcom/osm-l3.c | 16 | ||||
| -rw-r--r-- | drivers/interconnect/qcom/qcm2290.c | 4 | ||||
| -rw-r--r-- | drivers/interconnect/qcom/sm8450.c | 98 | ||||
| -rw-r--r-- | drivers/interconnect/qcom/sm8550.c | 99 | ||||
| -rw-r--r-- | drivers/interconnect/samsung/exynos.c | 30 | ||||
| -rw-r--r-- | drivers/memory/tegra/mc.c | 16 | ||||
| -rw-r--r-- | drivers/memory/tegra/tegra124-emc.c | 12 | ||||
| -rw-r--r-- | drivers/memory/tegra/tegra20-emc.c | 12 | ||||
| -rw-r--r-- | drivers/memory/tegra/tegra30-emc.c | 12 | ||||
| -rw-r--r-- | drivers/nvmem/core.c | 2 | ||||
| -rw-r--r-- | include/linux/interconnect-provider.h | 12 |
17 files changed, 160 insertions, 322 deletions
diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index acd83d29c866..ce86a1850305 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -206,7 +206,7 @@ static int do_feature_check_call(const u32 api_id) } /* Add new entry if not present */ - feature_data = kmalloc(sizeof(*feature_data), GFP_KERNEL); + feature_data = kmalloc(sizeof(*feature_data), GFP_ATOMIC); if (!feature_data) return -ENOMEM; diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c index 0f392f59b135..7a24c1444ace 100644 --- a/drivers/interconnect/core.c +++ b/drivers/interconnect/core.c @@ -850,6 +850,10 @@ void icc_node_destroy(int id) mutex_unlock(&icc_lock); + if (!node) + return; + + kfree(node->links); kfree(node); } EXPORT_SYMBOL_GPL(icc_node_destroy); @@ -1029,54 +1033,68 @@ int icc_nodes_remove(struct icc_provider *provider) EXPORT_SYMBOL_GPL(icc_nodes_remove); /** - * icc_provider_add() - add a new interconnect provider - * @provider: the interconnect provider that will be added into topology + * icc_provider_init() - initialize a new interconnect provider + * @provider: the interconnect provider to initialize + * + * Must be called before adding nodes to the provider. + */ +void icc_provider_init(struct icc_provider *provider) +{ + WARN_ON(!provider->set); + + INIT_LIST_HEAD(&provider->nodes); +} +EXPORT_SYMBOL_GPL(icc_provider_init); + +/** + * icc_provider_register() - register a new interconnect provider + * @provider: the interconnect provider to register * * Return: 0 on success, or an error code otherwise */ -int icc_provider_add(struct icc_provider *provider) +int icc_provider_register(struct icc_provider *provider) { - if (WARN_ON(!provider->set)) - return -EINVAL; if (WARN_ON(!provider->xlate && !provider->xlate_extended)) return -EINVAL; mutex_lock(&icc_lock); - - INIT_LIST_HEAD(&provider->nodes); list_add_tail(&provider->provider_list, &icc_providers); - mutex_unlock(&icc_lock); - dev_dbg(provider->dev, "interconnect provider added to topology\n"); + dev_dbg(provider->dev, "interconnect provider registered\n"); return 0; } -EXPORT_SYMBOL_GPL(icc_provider_add); +EXPORT_SYMBOL_GPL(icc_provider_register); /** - * icc_provider_del() - delete previously added interconnect provider - * @provider: the interconnect provider that will be removed from topology + * icc_provider_deregister() - deregister an interconnect provider + * @provider: the interconnect provider to deregister */ -void icc_provider_del(struct icc_provider *provider) +void icc_provider_deregister(struct icc_provider *provider) { mutex_lock(&icc_lock); - if (provider->users) { - pr_warn("interconnect provider still has %d users\n", - provider->users); - mutex_unlock(&icc_lock); - return; - } - - if (!list_empty(&provider->nodes)) { - pr_warn("interconnect provider still has nodes\n"); - mutex_unlock(&icc_lock); - return; - } + WARN_ON(provider->users); list_del(&provider->provider_list); mutex_unlock(&icc_lock); } +EXPORT_SYMBOL_GPL(icc_provider_deregister); + +int icc_provider_add(struct icc_provider *provider) +{ + icc_provider_init(provider); + + return icc_provider_register(provider); +} +EXPORT_SYMBOL_GPL(icc_provider_add); + +void icc_provider_del(struct icc_provider *provider) +{ + WARN_ON(!list_empty(&provider->nodes)); + + icc_provider_deregister(provider); +} EXPORT_SYMBOL_GPL(icc_provider_del); static const struct of_device_id __maybe_unused ignore_list[] = { diff --git a/drivers/interconnect/imx/imx.c b/drivers/interconnect/imx/imx.c index 823d9be9771a..979ed610f704 100644 --- a/drivers/interconnect/imx/imx.c +++ b/drivers/interconnect/imx/imx.c @@ -295,6 +295,9 @@ int imx_icc_register(struct platform_device *pdev, provider->xlate = of_icc_xlate_onecell; provider->data = data; provider->dev = dev->parent; + + icc_provider_init(provider); + platform_set_drvdata(pdev, imx_provider); if (settings) { @@ -306,20 +309,18 @@ int imx_icc_register(struct platform_device *pdev, } } - ret = icc_provider_add(provider); - if (ret) { - dev_err(dev, "error adding interconnect provider: %d\n", ret); + ret = imx_icc_register_nodes(imx_provider, nodes, nodes_count, settings); + if (ret) return ret; - } - ret = imx_icc_register_nodes(imx_provider, nodes, nodes_count, settings); + ret = icc_provider_register(provider); if (ret) - goto provider_del; + goto err_unregister_nodes; return 0; -provider_del: - icc_provider_del(provider); +err_unregister_nodes: + imx_icc_unregister_nodes(&imx_provider->provider); return ret; } EXPORT_SYMBOL_GPL(imx_icc_register); @@ -328,9 +329,8 @@ void imx_icc_unregister(struct platform_device *pdev) { struct imx_icc_provider *imx_provider = platform_get_drvdata(pdev); + icc_provider_deregister(&imx_provider->provider); imx_icc_unregister_nodes(&imx_provider->provider); - - icc_provider_del(&imx_provider->provider); } EXPORT_SYMBOL_GPL(imx_icc_unregister); diff --git a/drivers/interconnect/qcom/icc-rpm.c b/drivers/interconnect/qcom/icc-rpm.c index df3196f72536..4180a06681b2 100644 --- a/drivers/interconnect/qcom/icc-rpm.c +++ b/drivers/interconnect/qcom/icc-rpm.c @@ -503,7 +503,6 @@ regmap_done: } provider = &qp->provider; - INIT_LIST_HEAD(&provider->nodes); provider->dev = dev; provider->set = qcom_icc_set; provider->pre_aggregate = qcom_icc_pre_bw_aggregate; @@ -511,12 +510,7 @@ regmap_done: provider->xlate_extended = qcom_icc_xlate_extended; provider->data = data; - ret = icc_provider_add(provider); - if (ret) { - dev_err(dev, "error adding interconnect provider: %d\n", ret); - clk_bulk_disable_unprepare(qp->num_clks, qp->bus_clks); - return ret; - } + icc_provider_init(provider); for (i = 0; i < num_nodes; i++) { size_t j; @@ -524,7 +518,7 @@ regmap_done: node = icc_node_create(qnodes[i]->id); if (IS_ERR(node)) { ret = PTR_ERR(node); - goto err; + goto err_remove_nodes; } node->name = qnodes[i]->name; @@ -538,17 +532,26 @@ regmap_done: } data->num_nodes = num_nodes; + ret = icc_provider_register(provider); + if (ret) + goto err_remove_nodes; + platform_set_drvdata(pdev, qp); /* Populate child NoC devices if any */ - if (of_get_child_count(dev->of_node) > 0) - return of_platform_populate(dev->of_node, NULL, NULL, dev); + if (of_get_child_count(dev->of_node) > 0) { + ret = of_platform_populate(dev->of_node, NULL, NULL, dev); + if (ret) + goto err_deregister_provider; + } return 0; -err: + +err_deregister_provider: + icc_provider_deregister(provider); +err_remove_nodes: icc_nodes_remove(provider); clk_bulk_disable_unprepare(qp->num_clks, qp->bus_clks); - icc_provider_del(provider); return ret; } @@ -558,9 +561,9 @@ int qnoc_remove(struct platform_device *pdev) { struct qcom_icc_provider *qp = platform_get_drvdata(pdev); + icc_provider_deregister(&qp->provider); icc_nodes_remove(&qp->provider); clk_bulk_disable_unprepare(qp->num_clks, qp->bus_clks); - icc_provider_del(&qp->provider); return 0; } diff --git a/drivers/interconnect/qcom/icc-rpmh.c b/drivers/interconnect/qcom/icc-rpmh.c index fd17291c61eb..fdb5e58e408b 100644 --- a/drivers/interconnect/qcom/icc-rpmh.c +++ b/drivers/interconnect/qcom/icc-rpmh.c @@ -192,9 +192,10 @@ int qcom_icc_rpmh_probe(struct platform_device *pdev) provider->pre_aggregate = qcom_icc_pre_aggregate; provider->aggregate = qcom_icc_aggregate; provider->xlate_extended = qcom_icc_xlate_extended; - INIT_LIST_HEAD(&provider->nodes); provider->data = data; + icc_provider_init(provider); + qp->dev = dev; qp->bcms = desc->bcms; qp->num_bcms = desc->num_bcms; @@ -203,10 +204,6 @@ int qcom_icc_rpmh_probe(struct platform_device *pdev) if (IS_ERR(qp->voter)) return PTR_ERR(qp->voter); - ret = icc_provider_add(provider); - if (ret) - return ret; - for (i = 0; i < qp->num_bcms; i++) qcom_icc_bcm_init(qp->bcms[i], dev); @@ -218,7 +215,7 @@ int qcom_icc_rpmh_probe(struct platform_device *pdev) node = icc_node_create(qn->id); if (IS_ERR(node)) { ret = PTR_ERR(node); - goto err; + goto err_remove_nodes; } node->name = qn->name; @@ -232,16 +229,27 @@ int qcom_icc_rpmh_probe(struct platform_device *pdev) } data->num_nodes = num_nodes; + + ret = icc_provider_register(provider); + if (ret) + goto err_remove_nodes; + platform_set_drvdata(pdev, qp); /* Populate child NoC devices if any */ - if (of_get_child_count(dev->of_node) > 0) - return of_platform_populate(dev->of_node, NULL, NULL, dev); + if (of_get_child_count(dev->of_node) > 0) { + ret = of_platform_populate(dev->of_node, NULL, NULL, dev); + if (ret) + goto err_deregister_provider; + } return 0; -err: + +err_deregister_provider: + icc_provider_deregister(provider); +err_remove_nodes: icc_nodes_remove(provider); - icc_provider_del(provider); + return ret; } EXPORT_SYMBOL_GPL(qcom_icc_rpmh_probe); @@ -250,8 +258,8 @@ int qcom_icc_rpmh_remove(struct platform_device *pdev) { struct qcom_icc_provider *qp = platform_get_drvdata(pdev); + icc_provider_deregister(&qp->provider); icc_nodes_remove(&qp->provider); - icc_provider_del(&qp->provider); return 0; } diff --git a/drivers/interconnect/qcom/msm8974.c b/drivers/interconnect/qcom/msm8974.c index 5ea192f1141d..1828deaca443 100644 --- a/drivers/interconnect/qcom/msm8974.c +++ b/drivers/interconnect/qcom/msm8974.c @@ -692,7 +692,6 @@ static int msm8974_icc_probe(struct platform_device *pdev) return ret; provider = &qp->provider; - INIT_LIST_HEAD(&provider->nodes); provider->dev = dev; provider->set = msm8974_icc_set; provider->aggregate = icc_std_aggregate; @@ -700,11 +699,7 @@ static int msm8974_icc_probe(struct platform_device *pdev) provider->data = data; provider->get_bw = msm8974_get_bw; - ret = icc_provider_add(provider); - if (ret) { - dev_err(dev, "error adding interconnect provider: %d\n", ret); - goto err_disable_clks; - } + icc_provider_init(provider); for (i = 0; i < num_nodes; i++) { size_t j; @@ -712,7 +707,7 @@ static int msm8974_icc_probe(struct platform_device *pdev) node = icc_node_create(qnodes[i]->id); if (IS_ERR(node)) { ret = PTR_ERR(node); - goto err_del_icc; + goto err_remove_nodes; } node->name = qnodes[i]->name; @@ -729,15 +724,16 @@ static int msm8974_icc_probe(struct platform_device *pdev) } data->num_nodes = num_nodes; + ret = icc_provider_register(provider); + if (ret) + goto err_remove_nodes; + platform_set_drvdata(pdev, qp); return 0; -err_del_icc: +err_remove_nodes: icc_nodes_remove(provider); - icc_provider_del(provider); - -err_disable_clks: clk_bulk_disable_unprepare(qp->num_clks, qp->bus_clks); return ret; @@ -747,9 +743,9 @@ static int msm8974_icc_remove(struct platform_device *pdev) { struct msm8974_icc_provider *qp = platform_get_drvdata(pdev); + icc_provider_deregister(&qp->provider); icc_nodes_remove(&qp->provider); clk_bulk_disable_unprepare(qp->num_clks, qp->bus_clks); - icc_provider_del(&qp->provider); return 0; } diff --git a/drivers/interconnect/qcom/osm-l3.c b/drivers/interconnect/qcom/osm-l3.c index 5fa171087425..1bafb54f1432 100644 --- a/drivers/interconnect/qcom/osm-l3.c +++ b/drivers/interconnect/qcom/osm-l3.c @@ -158,8 +158,8 @@ static int qcom_osm_l3_remove(struct platform_device *pdev) { struct qcom_osm_l3_icc_provider *qp = platform_get_drvdata(pdev); + icc_provider_deregister(&qp->provider); icc_nodes_remove(&qp->provider); - icc_provider_del(&qp->provider); return 0; } @@ -236,7 +236,7 @@ static int qcom_osm_l3_probe(struct platform_device *pdev) qnodes = desc->nodes; num_nodes = desc->num_nodes; - data = devm_kcalloc(&pdev->dev, num_nodes, sizeof(*node), GFP_KERNEL); + data = devm_kzalloc(&pdev->dev, struct_size(data, nodes, num_nodes), GFP_KERNEL); if (!data) return -ENOMEM; @@ -245,14 +245,9 @@ static int qcom_osm_l3_probe(struct platform_device *pdev) provider->set = qcom_osm_l3_set; provider->aggregate = icc_std_aggregate; provider->xlate = of_icc_xlate_onecell; - INIT_LIST_HEAD(&provider->nodes); provider->data = data; - ret = icc_provider_add(provider); - if (ret) { - dev_err(&pdev->dev, "error adding interconnect provider\n"); - return ret; - } + icc_provider_init(provider); for (i = 0; i < num_nodes; i++) { size_t j; @@ -275,12 +270,15 @@ static int qcom_osm_l3_probe(struct platform_device *pdev) } data->num_nodes = num_nodes; + ret = icc_provider_register(provider); + if (ret) + goto err; + platform_set_drvdata(pdev, qp); return 0; err: icc_nodes_remove(provider); - icc_provider_del(provider); return ret; } diff --git a/drivers/interconnect/qcom/qcm2290.c b/drivers/interconnect/qcom/qcm2290.c index 0da612d6398c..a29cdb4fac03 100644 --- a/drivers/interconnect/qcom/qcm2290.c +++ b/drivers/interconnect/qcom/qcm2290.c @@ -147,9 +147,9 @@ static struct qcom_icc_node mas_snoc_bimc_nrt = { .name = "mas_snoc_bimc_nrt", .buswidth = 16, .qos.ap_owned = true, - .qos.qos_port = 2, + .qos.qos_port = 3, .qos.qos_mode = NOC_QOS_MODE_BYPASS, - .mas_rpm_id = 163, + .mas_rpm_id = 164, .slv_rpm_id = -1, .num_links = ARRAY_SIZE(mas_snoc_bimc_nrt_links), .links = mas_snoc_bimc_nrt_links, diff --git a/drivers/interconnect/qcom/sm8450.c b/drivers/interconnect/qcom/sm8450.c index e3a12e3d6e06..2d7a8e7b85ec 100644 --- a/drivers/interconnect/qcom/sm8450.c +++ b/drivers/interconnect/qcom/sm8450.c @@ -1844,100 +1844,6 @@ static const struct qcom_icc_desc sm8450_system_noc = { .num_bcms = ARRAY_SIZE(system_noc_bcms), }; -static int qnoc_probe(struct platform_device *pdev) -{ - const struct qcom_icc_desc *desc; - struct icc_onecell_data *data; - struct icc_provider *provider; - struct qcom_icc_node * const *qnodes; - struct qcom_icc_provider *qp; - struct icc_node *node; - size_t num_nodes, i; - int ret; - - desc = device_get_match_data(&pdev->dev); - if (!desc) - return -EINVAL; - - qnodes = desc->nodes; - num_nodes = desc->num_nodes; - - qp = devm_kzalloc(&pdev->dev, sizeof(*qp), GFP_KERNEL); - if (!qp) - return -ENOMEM; - - data = devm_kcalloc(&pdev->dev, num_nodes, sizeof(*node), GFP_KERNEL); - if (!data) - return -ENOMEM; - - provider = &qp->provider; - provider->dev = &pdev->dev; - provider->set = qcom_icc_set; - provider->pre_aggregate = qcom_icc_pre_aggregate; - provider->aggregate = qcom_icc_aggregate; - provider->xlate_extended = qcom_icc_xlate_extended; - INIT_LIST_HEAD(&provider->nodes); - provider->data = data; - - qp->dev = &pdev->dev; - qp->bcms = desc->bcms; - qp->num_bcms = desc->num_bcms; - - qp->voter = of_bcm_voter_get(qp->dev, NULL); - if (IS_ERR(qp->voter)) - return PTR_ERR(qp->voter); - - ret = icc_provider_add(provider); - if (ret) { - dev_err(&pdev->dev, "error adding interconnect provider\n"); - return ret; - } - - for (i = 0; i < qp->num_bcms; i++) - qcom_icc_bcm_init(qp->bcms[i], &pdev->dev); - - for (i = 0; i < num_nodes; i++) { - size_t j; - - if (!qnodes[i]) - continue; - - node = icc_node_create(qnodes[i]->id); - if (IS_ERR(node)) { - ret = PTR_ERR(node); - goto err; - } - - node->name = qnodes[i]->name; - node->data = qnodes[i]; - icc_node_add(node, provider); - - for (j = 0; j < qnodes[i]->num_links; j++) - icc_link_create(node, qnodes[i]->links[j]); - - data->nodes[i] = node; - } - data->num_nodes = num_nodes; - - platform_set_drvdata(pdev, qp); - - return 0; -err: - icc_nodes_remove(provider); - icc_provider_del(provider); - return ret; -} - -static int qnoc_remove(struct platform_device *pdev) -{ - struct qcom_icc_provider *qp = platform_get_drvdata(pdev); - - icc_nodes_remove(&qp->provider); - icc_provider_del(&qp->provider); - - return 0; -} - static const struct of_device_id qnoc_of_match[] = { { .compatible = "qcom,sm8450-aggre1-noc", .data = &sm8450_aggre1_noc}, @@ -1966,8 +1872,8 @@ static const struct of_device_id qnoc_of_match[] = { MODULE_DEVICE_TABLE(of, qnoc_of_match); static struct platform_driver qnoc_driver = { - .probe = qnoc_probe, - .remove = qnoc_remove, + .probe = qcom_icc_rpmh_probe, + .remove = qcom_icc_rpmh_remove, .driver = { .name = "qnoc-sm8450", .of_match_table = qnoc_of_match, diff --git a/drivers/interconnect/qcom/sm8550.c b/drivers/interconnect/qcom/sm8550.c index 54fa027ab961..d823ba988ef6 100644 --- a/drivers/interconnect/qcom/sm8550.c +++ b/drivers/interconnect/qcom/sm8550.c @@ -2165,101 +2165,6 @@ static const struct qcom_icc_desc sm8550_system_noc = { .num_bcms = ARRAY_SIZE(system_noc_bcms), }; -static int qnoc_probe(struct platform_device *pdev) -{ - const struct qcom_icc_desc *desc; - struct icc_onecell_data *data; - struct icc_provider *provider; - struct qcom_icc_node * const *qnodes; - struct qcom_icc_provider *qp; - struct icc_node *node; - size_t num_nodes, i; - int ret; - - desc = device_get_match_data(&pdev->dev); - if (!desc) - return -EINVAL; - - qnodes = desc->nodes; - num_nodes = desc->num_nodes; - - qp = devm_kzalloc(&pdev->dev, sizeof(*qp), GFP_KERNEL); - if (!qp) - return -ENOMEM; - - data = devm_kcalloc(&pdev->dev, num_nodes, sizeof(*node), GFP_KERNEL); - if (!data) - return -ENOMEM; - - provider = &qp->provider; - provider->dev = &pdev->dev; - provider->set = qcom_icc_set; - provider->pre_aggregate = qcom_icc_pre_aggregate; - provider->aggregate = qcom_icc_aggregate; - provider->xlate_extended = qcom_icc_xlate_extended; - INIT_LIST_HEAD(&provider->nodes); - provider->data = data; - - qp->dev = &pdev->dev; - qp->bcms = desc->bcms; - qp->num_bcms = desc->num_bcms; - - qp->voter = of_bcm_voter_get(qp->dev, NULL); - if (IS_ERR(qp->voter)) - return PTR_ERR(qp->voter); - - ret = icc_provider_add(provider); - if (ret) { - dev_err_probe(&pdev->dev, ret, - "error adding interconnect provider\n"); - return ret; - } - - for (i = 0; i < qp->num_bcms; i++) - qcom_icc_bcm_init(qp->bcms[i], &pdev->dev); - - for (i = 0; i < num_nodes; i++) { - size_t j; - - if (!qnodes[i]) - continue; - - node = icc_node_create(qnodes[i]->id); - if (IS_ERR(node)) { - ret = PTR_ERR(node); - goto err; - } - - node->name = qnodes[i]->name; - node->data = qnodes[i]; - icc_node_add(node, provider); - - for (j = 0; j < qnodes[i]->num_links; j++) - icc_link_create(node, qnodes[i]->links[j]); - - data->nodes[i] = node; - } - data->num_nodes = num_nodes; - - platform_set_drvdata(pdev, qp); - - return 0; -err: - icc_nodes_remove(provider); - icc_provider_del(provider); - return ret; -} - -static int qnoc_remove(struct platform_device *pdev) -{ - struct qcom_icc_provider *qp = platform_get_drvdata(pdev); - - icc_nodes_remove(&qp->provider); - icc_provider_del(&qp->provider); - - return 0; -} - static const struct of_device_id qnoc_of_match[] = { { .compatible = "qcom,sm8550-aggre1-noc", .data = &sm8550_aggre1_noc}, @@ -2294,8 +2199,8 @@ static const struct of_device_id qnoc_of_match[] = { MODULE_DEVICE_TABLE(of, qnoc_of_match); static struct platform_driver qnoc_driver = { - .probe = qnoc_probe, - .remove = qnoc_remove, + .probe = qcom_icc_rpmh_probe, + .remove = qcom_icc_rpmh_remove, .driver = { .name = "qnoc-sm8550", .of_match_table = qnoc_of_match, diff --git a/drivers/interconnect/samsung/exynos.c b/drivers/interconnect/samsung/exynos.c index 6559d8cf8068..ebf09bbf725b 100644 --- a/drivers/interconnect/samsung/exynos.c +++ b/drivers/interconnect/samsung/exynos.c @@ -96,14 +96,9 @@ static struct icc_node *exynos_generic_icc_xlate(struct of_phandle_args *spec, static int exynos_generic_icc_remove(struct platform_device *pdev) { struct exynos_icc_priv *priv = platform_get_drvdata(pdev); - struct icc_node *parent_node, *node = priv->node; - - parent_node = exynos_icc_get_parent(priv->dev->parent->of_node); - if (parent_node && !IS_ERR(parent_node)) - icc_link_destroy(node, parent_node); + icc_provider_deregister(&priv->provider); icc_nodes_remove(&priv->provider); - icc_provider_del(&priv->provider); return 0; } @@ -132,15 +127,11 @@ static int exynos_generic_icc_probe(struct platform_device *pdev) provider->inter_set = true; provider->data = priv; - ret = icc_provider_add(provider); - if (ret < 0) - return ret; + icc_provider_init(provider); icc_node = icc_node_create(pdev->id); - if (IS_ERR(icc_node)) { - ret = PTR_ERR(icc_node); - goto err_prov_del; - } + if (IS_ERR(icc_node)) + return PTR_ERR(icc_node); priv->node = icc_node; icc_node->name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%pOFn", @@ -149,6 +140,9 @@ static int exynos_generic_icc_probe(struct platform_device *pdev) &priv->bus_clk_ratio)) priv->bus_clk_ratio = EXYNOS_ICC_DEFAULT_BUS_CLK_RATIO; + icc_node->data = priv; + icc_node_add(icc_node, provider); + /* * Register a PM QoS request for the parent (devfreq) device. */ @@ -157,9 +151,6 @@ static int exynos_generic_icc_probe(struct platform_device *pdev) if (ret < 0) goto err_node_del; - icc_node->data = priv; - icc_node_add(icc_node, provider); - icc_parent_node = exynos_icc_get_parent(bus_dev->of_node); if (IS_ERR(icc_parent_node)) { ret = PTR_ERR(icc_parent_node); @@ -171,14 +162,17 @@ static int exynos_generic_icc_probe(struct platform_device *pdev) goto err_pmqos_del; } + ret = icc_provider_register(provider); + if (ret < 0) + goto err_pmqos_del; + return 0; err_pmqos_del: dev_pm_qos_remove_request(&priv->qos_req); err_node_del: icc_nodes_remove(provider); -err_prov_del: - icc_provider_del(provider); + return ret; } diff --git a/drivers/memory/tegra/mc.c b/drivers/memory/tegra/mc.c index 592907546ee6..5cd28619ea9f 100644 --- a/drivers/memory/tegra/mc.c +++ b/drivers/memory/tegra/mc.c @@ -794,16 +794,12 @@ static int tegra_mc_interconnect_setup(struct tegra_mc *mc) mc->provider.aggregate = mc->soc->icc_ops->aggregate; mc->provider.xlate_extended = mc->soc->icc_ops->xlate_extended; - err = icc_provider_add(&mc->provider); - if (err) - return err; + icc_provider_init(&mc->provider); /* create Memory Controller node */ node = icc_node_create(TEGRA_ICC_MC); - if (IS_ERR(node)) { - err = PTR_ERR(node); - goto del_provider; - } + if (IS_ERR(node)) + return PTR_ERR(node); node->name = "Memory Controller"; icc_node_add(node, &mc->provider); @@ -830,12 +826,14 @@ static int tegra_mc_interconnect_setup(struct tegra_mc *mc) goto remove_nodes; } + err = icc_provider_register(&mc->provider); + if (err) + goto remove_nodes; + return 0; remove_nodes: icc_nodes_remove(&mc->provider); -del_provider: - icc_provider_del(&mc->provider); return err; } diff --git a/drivers/memory/tegra/tegra124-emc.c b/drivers/memory/tegra/tegra124-emc.c index 85bc936c02f9..00ed2b6a0d1b 100644 --- a/drivers/memory/tegra/tegra124-emc.c +++ b/drivers/memory/tegra/tegra124-emc.c @@ -1351,15 +1351,13 @@ static int tegra_emc_interconnect_init(struct tegra_emc *emc) emc->provider.aggregate = soc->icc_ops->aggregate; emc->provider.xlate_extended = emc_of_icc_xlate_extended; - err = icc_provider_add(&emc->provider); - if (err) - goto err_msg; + icc_provider_init(&emc->provider); /* create External Memory Controller node */ node = icc_node_create(TEGRA_ICC_EMC); if (IS_ERR(node)) { err = PTR_ERR(node); - goto del_provider; + goto err_msg; } node->name = "External Memory Controller"; @@ -1380,12 +1378,14 @@ static int tegra_emc_interconnect_init(struct tegra_emc *emc) node->name = "External Memory (DRAM)"; icc_node_add(node, &emc->provider); + err = icc_provider_register(&emc->provider); + if (err) + goto remove_nodes; + return 0; remove_nodes: icc_nodes_remove(&emc->provider); -del_provider: - icc_provider_del(&emc->provider); err_msg: dev_err(emc->dev, "failed to initialize ICC: %d\n", err); diff --git a/drivers/memory/tegra/tegra20-emc.c b/drivers/memory/tegra/tegra20-emc.c index bd4e37b6552d..fd595c851a27 100644 --- a/drivers/memory/tegra/tegra20-emc.c +++ b/drivers/memory/tegra/tegra20-emc.c @@ -1021,15 +1021,13 @@ static int tegra_emc_interconnect_init(struct tegra_emc *emc) emc->provider.aggregate = soc->icc_ops->aggregate; emc->provider.xlate_extended = emc_of_icc_xlate_extended; - err = icc_provider_add(&emc->provider); - if (err) - goto err_msg; + icc_provider_init(&emc->provider); /* create External Memory Controller node */ node = icc_node_create(TEGRA_ICC_EMC); if (IS_ERR(node)) { err = PTR_ERR(node); - goto del_provider; + goto err_msg; } node->name = "External Memory Controller"; @@ -1050,12 +1048,14 @@ static int tegra_emc_interconnect_init(struct tegra_emc *emc) node->name = "External Memory (DRAM)"; icc_node_add(node, &emc->provider); + err = icc_provider_register(&emc->provider); + if (err) + goto remove_nodes; + return 0; remove_nodes: icc_nodes_remove(&emc->provider); -del_provider: - icc_provider_del(&emc->provider); err_msg: dev_err(emc->dev, "failed to initialize ICC: %d\n", err); diff --git a/drivers/memory/tegra/tegra30-emc.c b/drivers/memory/tegra/tegra30-emc.c index 77706e9bc543..c91e9b7e2e01 100644 --- a/drivers/memory/tegra/tegra30-emc.c +++ b/drivers/memory/tegra/tegra30-emc.c @@ -1533,15 +1533,13 @@ static int tegra_emc_interconnect_init(struct tegra_emc *emc) emc->provider.aggregate = soc->icc_ops->aggregate; emc->provider.xlate_extended = emc_of_icc_xlate_extended; - err = icc_provider_add(&emc->provider); - if (err) - goto err_msg; + icc_provider_init(&emc->provider); /* create External Memory Controller node */ node = icc_node_create(TEGRA_ICC_EMC); if (IS_ERR(node)) { err = PTR_ERR(node); - goto del_provider; + goto err_msg; } node->name = "External Memory Controller"; @@ -1562,12 +1560,14 @@ static int tegra_emc_interconnect_init(struct tegra_emc *emc) node->name = "External Memory (DRAM)"; icc_node_add(node, &emc->provider); + err = icc_provider_register(&emc->provider); + if (err) + goto remove_nodes; + return 0; remove_nodes: icc_nodes_remove(&emc->provider); -del_provider: - icc_provider_del(&emc->provider); err_msg: dev_err(emc->dev, "failed to initialize ICC: %d\n", err); diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index 174ef3574e07..22024b830788 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -1231,7 +1231,7 @@ struct nvmem_cell *of_nvmem_cell_get(struct device_node *np, const char *id) "#nvmem-cell-cells", index, &cell_spec); if (ret) - return ERR_PTR(ret); + return ERR_PTR(-ENOENT); if (cell_spec.args_count > 1) return ERR_PTR(-EINVAL); diff --git a/include/linux/interconnect-provider.h b/include/linux/interconnect-provider.h index cd5c5a27557f..d12cd18aab3f 100644 --- a/include/linux/interconnect-provider.h +++ b/include/linux/interconnect-provider.h @@ -122,6 +122,9 @@ int icc_link_destroy(struct icc_node *src, struct icc_node *dst); void icc_node_add(struct icc_node *node, struct icc_provider *provider); void icc_node_del(struct icc_node *node); int icc_nodes_remove(struct icc_provider *provider); +void icc_provider_init(struct icc_provider *provider); +int icc_provider_register(struct icc_provider *provider); +void icc_provider_deregister(struct icc_provider *provider); int icc_provider_add(struct icc_provider *provider); void icc_provider_del(struct icc_provider *provider); struct icc_node_data *of_icc_get_from_provider(struct of_phandle_args *spec); @@ -167,6 +170,15 @@ static inline int icc_nodes_remove(struct icc_provider *provider) return -ENOTSUPP; } +static inline void icc_provider_init(struct icc_provider *provider) { } + +static inline int icc_provider_register(struct icc_provider *provider) +{ + return -ENOTSUPP; +} + +static inline void icc_provider_deregister(struct icc_provider *provider) { } + static inline int icc_provider_add(struct icc_provider *provider) { return -ENOTSUPP; |