40 	struct tegra_devfreq *tegra = dev_get_drvdata(dev);  in tegra_devfreq_target()  local
41 	struct devfreq *devfreq = tegra->devfreq;  in tegra_devfreq_target()
53 	err = clk_set_min_rate(tegra->emc_clock, rate);  in tegra_devfreq_target()
57 	err = clk_set_rate(tegra->emc_clock, 0);  in tegra_devfreq_target()
64 	clk_set_min_rate(tegra->emc_clock, devfreq->previous_freq);  in tegra_devfreq_target()
72 	struct tegra_devfreq *tegra = dev_get_drvdata(dev);  in tegra_devfreq_get_dev_status()  local
84 	stat->busy_time = readl_relaxed(tegra->regs + MC_STAT_EMC_COUNT);  in tegra_devfreq_get_dev_status()
85 	stat->total_time = readl_relaxed(tegra->regs + MC_STAT_EMC_CLOCKS) / 8;  in tegra_devfreq_get_dev_status()
86 	stat->current_frequency = clk_get_rate(tegra->emc_clock);  in tegra_devfreq_get_dev_status()
88 	writel_relaxed(EMC_GATHER_CLEAR, tegra->regs + MC_STAT_CONTROL);  in tegra_devfreq_get_dev_status()
89 	writel_relaxed(EMC_GATHER_ENABLE, tegra->regs + MC_STAT_CONTROL);  in tegra_devfreq_get_dev_status()
124 	struct tegra_devfreq *tegra;  in tegra_devfreq_probe()  local
138 	tegra = devm_kzalloc(&pdev->dev, sizeof(*tegra), GFP_KERNEL);  in tegra_devfreq_probe()
139 	if (!tegra)  in tegra_devfreq_probe()
143 	tegra->emc_clock = devm_clk_get(&pdev->dev, "emc");  in tegra_devfreq_probe()
144 	if (IS_ERR(tegra->emc_clock)) {  in tegra_devfreq_probe()
145 		err = PTR_ERR(tegra->emc_clock);  in tegra_devfreq_probe()
150 	tegra->regs = mc->regs;  in tegra_devfreq_probe()
152 	max_rate = clk_round_rate(tegra->emc_clock, ULONG_MAX);  in tegra_devfreq_probe()
155 		rate = clk_round_rate(tegra->emc_clock, rate);  in tegra_devfreq_probe()
169 	writel_relaxed(0x00000000, tegra->regs + MC_STAT_CONTROL);  in tegra_devfreq_probe()
170 	writel_relaxed(0x00000000, tegra->regs + MC_STAT_EMC_CONTROL);  in tegra_devfreq_probe()
171 	writel_relaxed(0xffffffff, tegra->regs + MC_STAT_EMC_CLOCK_LIMIT);  in tegra_devfreq_probe()
173 	platform_set_drvdata(pdev, tegra);  in tegra_devfreq_probe()
175 	tegra->devfreq = devfreq_add_device(&pdev->dev, &tegra_devfreq_profile,  in tegra_devfreq_probe()
177 	if (IS_ERR(tegra->devfreq)) {  in tegra_devfreq_probe()
178 		err = PTR_ERR(tegra->devfreq);  in tegra_devfreq_probe()
192 	struct tegra_devfreq *tegra = platform_get_drvdata(pdev);  in tegra_devfreq_remove()  local
194 	devfreq_remove_device(tegra->devfreq);  in tegra_devfreq_remove()