Lines Matching defs:emc
40 * /sys/kernel/debug/emc
59 static bool tegra186_emc_validate_rate(struct tegra186_emc *emc,
64 for (i = 0; i < emc->num_dvfs; i++)
65 if (rate == emc->dvfs[i].rate)
74 struct tegra186_emc *emc = s->private;
78 for (i = 0; i < emc->num_dvfs; i++) {
79 seq_printf(s, "%s%lu", prefix, emc->dvfs[i].rate);
104 struct tegra186_emc *emc = data;
106 *rate = emc->debugfs.min_rate;
113 struct tegra186_emc *emc = data;
116 if (!tegra186_emc_validate_rate(emc, rate))
119 err = clk_set_min_rate(emc->clk, rate);
123 emc->debugfs.min_rate = rate;
134 struct tegra186_emc *emc = data;
136 *rate = emc->debugfs.max_rate;
143 struct tegra186_emc *emc = data;
146 if (!tegra186_emc_validate_rate(emc, rate))
149 err = clk_set_max_rate(emc->clk, rate);
153 emc->debugfs.max_rate = rate;
166 struct tegra186_emc *emc;
170 emc = devm_kzalloc(&pdev->dev, sizeof(*emc), GFP_KERNEL);
171 if (!emc)
174 emc->bpmp = tegra_bpmp_get(&pdev->dev);
175 if (IS_ERR(emc->bpmp))
176 return dev_err_probe(&pdev->dev, PTR_ERR(emc->bpmp), "failed to get BPMP\n");
178 emc->clk = devm_clk_get(&pdev->dev, "emc");
179 if (IS_ERR(emc->clk)) {
180 err = PTR_ERR(emc->clk);
185 platform_set_drvdata(pdev, emc);
186 emc->dev = &pdev->dev;
195 err = tegra_bpmp_transfer(emc->bpmp, &msg);
201 emc->debugfs.min_rate = ULONG_MAX;
202 emc->debugfs.max_rate = 0;
204 emc->num_dvfs = response.num_pairs;
206 emc->dvfs = devm_kmalloc_array(&pdev->dev, emc->num_dvfs,
207 sizeof(*emc->dvfs), GFP_KERNEL);
208 if (!emc->dvfs) {
213 dev_dbg(&pdev->dev, "%u DVFS pairs:\n", emc->num_dvfs);
215 for (i = 0; i < emc->num_dvfs; i++) {
216 emc->dvfs[i].rate = response.pairs[i].freq * 1000;
217 emc->dvfs[i].latency = response.pairs[i].latency;
219 if (emc->dvfs[i].rate < emc->debugfs.min_rate)
220 emc->debugfs.min_rate = emc->dvfs[i].rate;
222 if (emc->dvfs[i].rate > emc->debugfs.max_rate)
223 emc->debugfs.max_rate = emc->dvfs[i].rate;
226 emc->dvfs[i].rate, emc->dvfs[i].latency);
229 err = clk_set_rate_range(emc->clk, emc->debugfs.min_rate,
230 emc->debugfs.max_rate);
234 emc->debugfs.min_rate, emc->debugfs.max_rate,
235 emc->clk);
239 emc->debugfs.root = debugfs_create_dir("emc", NULL);
240 debugfs_create_file("available_rates", S_IRUGO, emc->debugfs.root,
241 emc, &tegra186_emc_debug_available_rates_fops);
242 debugfs_create_file("min_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
243 emc, &tegra186_emc_debug_min_rate_fops);
244 debugfs_create_file("max_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
245 emc, &tegra186_emc_debug_max_rate_fops);
250 tegra_bpmp_put(emc->bpmp);
256 struct tegra186_emc *emc = platform_get_drvdata(pdev);
258 debugfs_remove_recursive(emc->debugfs.root);
259 tegra_bpmp_put(emc->bpmp);
266 { .compatible = "nvidia,tegra186-emc" },
269 { .compatible = "nvidia,tegra194-emc" },
277 .name = "tegra186-emc",