15 #include <linux/dma-mapping.h>
20 #include <soc/tegra/bpmp.h>
21 #include <soc/tegra/bpmp-abi.h>
33 #define NO_CPU -1
66 	for (i = 0; i < data->num_clusters; i++) {  in tegra186_cpufreq_init()
67 		struct tegra186_cpufreq_cluster *cluster = &data->clusters[i];  in tegra186_cpufreq_init()
69 			cluster->info;  in tegra186_cpufreq_init()
72 		for (core = 0; core < ARRAY_SIZE(info->cpus); core++) {  in tegra186_cpufreq_init()
73 			if (info->cpus[core] == policy->cpu)  in tegra186_cpufreq_init()
76 		if (core == ARRAY_SIZE(info->cpus))  in tegra186_cpufreq_init()
79 		policy->driver_data =  in tegra186_cpufreq_init()
80 			data->regs + info->offset + EDVD_CORE_VOLT_FREQ(core);  in tegra186_cpufreq_init()
81 		policy->freq_table = cluster->table;  in tegra186_cpufreq_init()
85 	policy->cpuinfo.transition_latency = 300 * 1000;  in tegra186_cpufreq_init()
93 	struct cpufreq_frequency_table *tbl = policy->freq_table + index;  in tegra186_cpufreq_set_target()
94 	void __iomem *edvd_reg = policy->driver_data;  in tegra186_cpufreq_set_target()
95 	u32 edvd_val = tbl->driver_data;  in tegra186_cpufreq_set_target()
103 	.name = "tegra186",
112 	struct platform_device *pdev, struct tegra_bpmp *bpmp,  in init_vhint_table()  argument
123 	virt = dma_alloc_coherent(bpmp->dev, sizeof(*data), &phys,  in init_vhint_table()
126 		return ERR_PTR(-ENOMEM);  in init_vhint_table()
139 	err = tegra_bpmp_transfer(bpmp, &msg);  in init_vhint_table()
145 	for (i = data->vfloor; i <= data->vceil; i++) {  in init_vhint_table()
146 		u16 ndiv = data->ndiv[i];  in init_vhint_table()
148 		if (ndiv < data->ndiv_min || ndiv > data->ndiv_max)  in init_vhint_table()
152 		if (i > 0 && ndiv == data->ndiv[i - 1])  in init_vhint_table()
158 	table = devm_kcalloc(&pdev->dev, num_rates + 1, sizeof(*table),  in init_vhint_table()
161 		table = ERR_PTR(-ENOMEM);  in init_vhint_table()
165 	for (i = data->vfloor, j = 0; i <= data->vceil; i++) {  in init_vhint_table()
167 		u16 ndiv = data->ndiv[i];  in init_vhint_table()
170 		if (ndiv < data->ndiv_min || ndiv > data->ndiv_max)  in init_vhint_table()
174 		if (i > 0 && ndiv == data->ndiv[i - 1])  in init_vhint_table()
181 		point->driver_data = edvd_val;  in init_vhint_table()
182 		point->frequency = data->ref_clk_hz * ndiv / data->pdiv /  in init_vhint_table()
183 			data->mdiv / 1000;  in init_vhint_table()
189 	dma_free_coherent(bpmp->dev, sizeof(*data), virt, phys);  in init_vhint_table()
197 	struct tegra_bpmp *bpmp;  in tegra186_cpufreq_probe()  local
201 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);  in tegra186_cpufreq_probe()
203 		return -ENOMEM;  in tegra186_cpufreq_probe()
205 	data->clusters = devm_kcalloc(&pdev->dev, ARRAY_SIZE(tegra186_clusters),  in tegra186_cpufreq_probe()
206 				      sizeof(*data->clusters), GFP_KERNEL);  in tegra186_cpufreq_probe()
207 	if (!data->clusters)  in tegra186_cpufreq_probe()
208 		return -ENOMEM;  in tegra186_cpufreq_probe()
210 	data->num_clusters = ARRAY_SIZE(tegra186_clusters);  in tegra186_cpufreq_probe()
212 	bpmp = tegra_bpmp_get(&pdev->dev);  in tegra186_cpufreq_probe()
213 	if (IS_ERR(bpmp))  in tegra186_cpufreq_probe()
214 		return PTR_ERR(bpmp);  in tegra186_cpufreq_probe()
217 	data->regs = devm_ioremap_resource(&pdev->dev, res);  in tegra186_cpufreq_probe()
218 	if (IS_ERR(data->regs)) {  in tegra186_cpufreq_probe()
219 		err = PTR_ERR(data->regs);  in tegra186_cpufreq_probe()
223 	for (i = 0; i < data->num_clusters; i++) {  in tegra186_cpufreq_probe()
224 		struct tegra186_cpufreq_cluster *cluster = &data->clusters[i];  in tegra186_cpufreq_probe()
226 		cluster->info = &tegra186_clusters[i];  in tegra186_cpufreq_probe()
227 		cluster->table = init_vhint_table(  in tegra186_cpufreq_probe()
228 			pdev, bpmp, cluster->info->bpmp_cluster_id);  in tegra186_cpufreq_probe()
229 		if (IS_ERR(cluster->table)) {  in tegra186_cpufreq_probe()
230 			err = PTR_ERR(cluster->table);  in tegra186_cpufreq_probe()
235 	tegra_bpmp_put(bpmp);  in tegra186_cpufreq_probe()
246 	tegra_bpmp_put(bpmp);  in tegra186_cpufreq_probe()
259 	{ .compatible = "nvidia,tegra186-ccplex-cluster", },
266 		.name = "tegra186-cpufreq",
275 MODULE_DESCRIPTION("NVIDIA Tegra186 cpufreq driver");