Lines Matching +full:down +full:- +full:scaling

1 // SPDX-License-Identifier: GPL-2.0-only
3  *  CPU frequency scaling for OMAP using OPP information
8  *  Based on cpu-sa1110.c, Copyright (C) 2001 Russell King
10  * Copyright (C) 2007-2011 Texas Instruments, Inc.
11  * - OMAP3/4 support by Rajendra Nayak, Santosh Shilimkar
49 	old_freq = policy->cur;  in omap_target()
53 	ret = clk_round_rate(policy->clk, freq);  in omap_target()
67 			return -EINVAL;  in omap_target()
75 	dev_dbg(mpu_dev, "cpufreq-omap: %u MHz, %ld mV --> %u MHz, %ld mV\n",   in omap_target()
76 		old_freq / 1000, volt_old ? volt_old / 1000 : -1,  in omap_target()
77 		new_freq / 1000, volt ? volt / 1000 : -1);  in omap_target()
79 	/* scaling up?  scale voltage before frequency */  in omap_target()
81 		r = regulator_set_voltage(mpu_reg, volt - tol, volt + tol);  in omap_target()
89 	ret = clk_set_rate(policy->clk, new_freq * 1000);  in omap_target()
91 	/* scaling down?  scale voltage after frequency */  in omap_target()
93 		r = regulator_set_voltage(mpu_reg, volt - tol, volt + tol);  in omap_target()
95 			dev_warn(mpu_dev, "%s: unable to scale voltage down.\n",  in omap_target()
97 			clk_set_rate(policy->clk, old_freq * 1000);  in omap_target()
115 	policy->clk = clk_get(NULL, "cpufreq_ck");  in omap_cpu_init()
116 	if (IS_ERR(policy->clk))  in omap_cpu_init()
117 		return PTR_ERR(policy->clk);  in omap_cpu_init()
124 				__func__, policy->cpu, result);  in omap_cpu_init()
125 			clk_put(policy->clk);  in omap_cpu_init()
141 	clk_put(policy->clk);  in omap_cpu_exit()
162 		return -EINVAL;  in omap_cpufreq_probe()
192 		.name	= "omap-cpufreq",