Lines Matching refs:emc
59 static bool tegra186_emc_validate_rate(struct tegra186_emc *emc, in tegra186_emc_validate_rate() argument
64 for (i = 0; i < emc->num_dvfs; i++) in tegra186_emc_validate_rate()
65 if (rate == emc->dvfs[i].rate) in tegra186_emc_validate_rate()
74 struct tegra186_emc *emc = s->private; in tegra186_emc_debug_available_rates_show() local
78 for (i = 0; i < emc->num_dvfs; i++) { in tegra186_emc_debug_available_rates_show()
79 seq_printf(s, "%s%lu", prefix, emc->dvfs[i].rate); in tegra186_emc_debug_available_rates_show()
91 struct tegra186_emc *emc = data; in tegra186_emc_debug_min_rate_get() local
93 *rate = emc->debugfs.min_rate; in tegra186_emc_debug_min_rate_get()
100 struct tegra186_emc *emc = data; in tegra186_emc_debug_min_rate_set() local
103 if (!tegra186_emc_validate_rate(emc, rate)) in tegra186_emc_debug_min_rate_set()
106 err = clk_set_min_rate(emc->clk, rate); in tegra186_emc_debug_min_rate_set()
110 emc->debugfs.min_rate = rate; in tegra186_emc_debug_min_rate_set()
121 struct tegra186_emc *emc = data; in tegra186_emc_debug_max_rate_get() local
123 *rate = emc->debugfs.max_rate; in tegra186_emc_debug_max_rate_get()
130 struct tegra186_emc *emc = data; in tegra186_emc_debug_max_rate_set() local
133 if (!tegra186_emc_validate_rate(emc, rate)) in tegra186_emc_debug_max_rate_set()
136 err = clk_set_max_rate(emc->clk, rate); in tegra186_emc_debug_max_rate_set()
140 emc->debugfs.max_rate = rate; in tegra186_emc_debug_max_rate_set()
153 struct tegra186_emc *emc; in tegra186_emc_probe() local
157 emc = devm_kzalloc(&pdev->dev, sizeof(*emc), GFP_KERNEL); in tegra186_emc_probe()
158 if (!emc) in tegra186_emc_probe()
161 emc->bpmp = tegra_bpmp_get(&pdev->dev); in tegra186_emc_probe()
162 if (IS_ERR(emc->bpmp)) in tegra186_emc_probe()
163 return dev_err_probe(&pdev->dev, PTR_ERR(emc->bpmp), "failed to get BPMP\n"); in tegra186_emc_probe()
165 emc->clk = devm_clk_get(&pdev->dev, "emc"); in tegra186_emc_probe()
166 if (IS_ERR(emc->clk)) { in tegra186_emc_probe()
167 err = PTR_ERR(emc->clk); in tegra186_emc_probe()
172 platform_set_drvdata(pdev, emc); in tegra186_emc_probe()
173 emc->dev = &pdev->dev; in tegra186_emc_probe()
182 err = tegra_bpmp_transfer(emc->bpmp, &msg); in tegra186_emc_probe()
193 emc->debugfs.min_rate = ULONG_MAX; in tegra186_emc_probe()
194 emc->debugfs.max_rate = 0; in tegra186_emc_probe()
196 emc->num_dvfs = response.num_pairs; in tegra186_emc_probe()
198 emc->dvfs = devm_kmalloc_array(&pdev->dev, emc->num_dvfs, in tegra186_emc_probe()
199 sizeof(*emc->dvfs), GFP_KERNEL); in tegra186_emc_probe()
200 if (!emc->dvfs) { in tegra186_emc_probe()
205 dev_dbg(&pdev->dev, "%u DVFS pairs:\n", emc->num_dvfs); in tegra186_emc_probe()
207 for (i = 0; i < emc->num_dvfs; i++) { in tegra186_emc_probe()
208 emc->dvfs[i].rate = response.pairs[i].freq * 1000; in tegra186_emc_probe()
209 emc->dvfs[i].latency = response.pairs[i].latency; in tegra186_emc_probe()
211 if (emc->dvfs[i].rate < emc->debugfs.min_rate) in tegra186_emc_probe()
212 emc->debugfs.min_rate = emc->dvfs[i].rate; in tegra186_emc_probe()
214 if (emc->dvfs[i].rate > emc->debugfs.max_rate) in tegra186_emc_probe()
215 emc->debugfs.max_rate = emc->dvfs[i].rate; in tegra186_emc_probe()
218 emc->dvfs[i].rate, emc->dvfs[i].latency); in tegra186_emc_probe()
221 err = clk_set_rate_range(emc->clk, emc->debugfs.min_rate, in tegra186_emc_probe()
222 emc->debugfs.max_rate); in tegra186_emc_probe()
226 emc->debugfs.min_rate, emc->debugfs.max_rate, in tegra186_emc_probe()
227 emc->clk); in tegra186_emc_probe()
231 emc->debugfs.root = debugfs_create_dir("emc", NULL); in tegra186_emc_probe()
232 debugfs_create_file("available_rates", S_IRUGO, emc->debugfs.root, in tegra186_emc_probe()
233 emc, &tegra186_emc_debug_available_rates_fops); in tegra186_emc_probe()
234 debugfs_create_file("min_rate", S_IRUGO | S_IWUSR, emc->debugfs.root, in tegra186_emc_probe()
235 emc, &tegra186_emc_debug_min_rate_fops); in tegra186_emc_probe()
236 debugfs_create_file("max_rate", S_IRUGO | S_IWUSR, emc->debugfs.root, in tegra186_emc_probe()
237 emc, &tegra186_emc_debug_max_rate_fops); in tegra186_emc_probe()
242 tegra_bpmp_put(emc->bpmp); in tegra186_emc_probe()
248 struct tegra186_emc *emc = platform_get_drvdata(pdev); in tegra186_emc_remove() local
250 debugfs_remove_recursive(emc->debugfs.root); in tegra186_emc_remove()
251 tegra_bpmp_put(emc->bpmp); in tegra186_emc_remove()