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Commit | Line | Data |
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f7d77079 KK |
1 | # |
2 | # ARM CPU Frequency scaling drivers | |
3 | # | |
4 | ||
3b84d58d | 5 | # big LITTLE core layer and glue drivers |
8a67f0ef | 6 | config ARM_BIG_LITTLE_CPUFREQ |
99af7711 | 7 | tristate "Generic ARM big LITTLE CPUfreq driver" |
14730145 | 8 | depends on (ARM_CPU_TOPOLOGY || ARM64) && HAVE_CLK |
2f7e8a17 PA |
9 | # if CPU_THERMAL is on and THERMAL=m, ARM_BIT_LITTLE_CPUFREQ cannot be =y |
10 | depends on !CPU_THERMAL || THERMAL | |
109df086 | 11 | select PM_OPP |
99af7711 VK |
12 | help |
13 | This enables the Generic CPUfreq driver for ARM big.LITTLE platforms. | |
8a67f0ef | 14 | |
de322e08 MM |
15 | config ARM_BRCMSTB_AVS_CPUFREQ |
16 | tristate "Broadcom STB AVS CPUfreq driver" | |
17 | depends on ARCH_BRCMSTB || COMPILE_TEST | |
18 | default y | |
19 | help | |
20 | Some Broadcom STB SoCs use a co-processor running proprietary firmware | |
21 | ("AVS") to handle voltage and frequency scaling. This driver provides | |
22 | a standard CPUfreq interface to to the firmware. | |
23 | ||
24 | Say Y, if you have a Broadcom SoC with AVS support for DFS or DVFS. | |
25 | ||
33de45c1 MM |
26 | config ARM_BRCMSTB_AVS_CPUFREQ_DEBUG |
27 | bool "Broadcom STB AVS CPUfreq driver sysfs debug capability" | |
28 | depends on ARM_BRCMSTB_AVS_CPUFREQ | |
29 | help | |
30 | Enabling this option turns on debug support via sysfs under | |
31 | /sys/kernel/debug/brcmstb-avs-cpufreq. It is possible to read all and | |
32 | write some AVS mailbox registers through sysfs entries. | |
33 | ||
34 | If in doubt, say N. | |
35 | ||
8a67f0ef | 36 | config ARM_DT_BL_CPUFREQ |
99af7711 VK |
37 | tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver" |
38 | depends on ARM_BIG_LITTLE_CPUFREQ && OF | |
8a67f0ef | 39 | help |
99af7711 VK |
40 | This enables probing via DT for Generic CPUfreq driver for ARM |
41 | big.LITTLE platform. This gets frequency tables from DT. | |
8a67f0ef | 42 | |
3b84d58d | 43 | config ARM_VEXPRESS_SPC_CPUFREQ |
44 | tristate "Versatile Express SPC based CPUfreq driver" | |
45 | depends on ARM_BIG_LITTLE_CPUFREQ && ARCH_VEXPRESS_SPC | |
46 | help | |
47 | This add the CPUfreq driver support for Versatile Express | |
48 | big.LITTLE platforms using SPC for power management. | |
49 | ||
8b2b4a4e AB |
50 | config ARM_EXYNOS5440_CPUFREQ |
51 | tristate "SAMSUNG EXYNOS5440" | |
52 | depends on SOC_EXYNOS5440 | |
53 | depends on HAVE_CLK && OF | |
54 | select PM_OPP | |
55 | default y | |
56 | help | |
57 | This adds the CPUFreq driver for Samsung EXYNOS5440 | |
58 | SoC. The nature of exynos5440 clock controller is | |
59 | different than previous exynos controllers so not using | |
60 | the common exynos framework. | |
61 | ||
62 | If in doubt, say N. | |
63 | ||
a0ea048a VK |
64 | config ARM_HIGHBANK_CPUFREQ |
65 | tristate "Calxeda Highbank-based" | |
bbcf0719 | 66 | depends on ARCH_HIGHBANK && CPUFREQ_DT && REGULATOR |
a0ea048a VK |
67 | default m |
68 | help | |
69 | This adds the CPUFreq driver for Calxeda Highbank SoC | |
70 | based boards. | |
71 | ||
72 | If in doubt, say N. | |
73 | ||
be0408d7 AB |
74 | config ARM_DB8500_CPUFREQ |
75 | tristate "ST-Ericsson DB8500 cpufreq" if COMPILE_TEST && !ARCH_U8500 | |
76 | default ARCH_U8500 | |
77 | depends on HAS_IOMEM | |
78 | depends on !CPU_THERMAL || THERMAL | |
79 | help | |
80 | This adds the CPUFreq driver for ST-Ericsson Ux500 (DB8500) SoC | |
81 | series. | |
82 | ||
a0ea048a | 83 | config ARM_IMX6Q_CPUFREQ |
1d0eaae9 SG |
84 | tristate "Freescale i.MX6 cpufreq support" |
85 | depends on ARCH_MXC | |
a0ea048a | 86 | depends on REGULATOR_ANATOP |
7e021687 | 87 | select PM_OPP |
a0ea048a | 88 | help |
1d0eaae9 | 89 | This adds cpufreq driver support for Freescale i.MX6 series SoCs. |
a0ea048a VK |
90 | |
91 | If in doubt, say N. | |
92 | ||
93 | config ARM_KIRKWOOD_CPUFREQ | |
6c8df11d | 94 | def_bool MACH_KIRKWOOD |
a0ea048a VK |
95 | help |
96 | This adds the CPUFreq driver for Marvell Kirkwood | |
97 | SoCs. | |
98 | ||
1453863f | 99 | config ARM_MT8173_CPUFREQ |
3c2002ae | 100 | tristate "Mediatek MT8173 CPUFreq support" |
1453863f | 101 | depends on ARCH_MEDIATEK && REGULATOR |
2d4ee303 | 102 | depends on ARM64 || (ARM_CPU_TOPOLOGY && COMPILE_TEST) |
3c2002ae | 103 | depends on !CPU_THERMAL || THERMAL |
1453863f PCC |
104 | select PM_OPP |
105 | help | |
106 | This adds the CPUFreq driver support for Mediatek MT8173 SoC. | |
107 | ||
b09db45c RK |
108 | config ARM_OMAP2PLUS_CPUFREQ |
109 | bool "TI OMAP2+" | |
2d59dcfb | 110 | depends on ARCH_OMAP2PLUS |
b09db45c | 111 | default ARCH_OMAP2PLUS |
b09db45c | 112 | |
f023f8dd VK |
113 | config ARM_S3C_CPUFREQ |
114 | bool | |
115 | help | |
116 | Internal configuration node for common cpufreq on Samsung SoC | |
117 | ||
118 | config ARM_S3C24XX_CPUFREQ | |
119 | bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)" | |
120 | depends on ARCH_S3C24XX | |
121 | select ARM_S3C_CPUFREQ | |
122 | help | |
123 | This enables the CPUfreq driver for the Samsung S3C24XX family | |
124 | of CPUs. | |
125 | ||
126 | For details, take a look at <file:Documentation/cpu-freq>. | |
127 | ||
128 | If in doubt, say N. | |
129 | ||
130 | config ARM_S3C24XX_CPUFREQ_DEBUG | |
131 | bool "Debug CPUfreq Samsung driver core" | |
132 | depends on ARM_S3C24XX_CPUFREQ | |
133 | help | |
134 | Enable s3c_freq_dbg for the Samsung S3C CPUfreq core | |
135 | ||
136 | config ARM_S3C24XX_CPUFREQ_IODEBUG | |
137 | bool "Debug CPUfreq Samsung driver IO timing" | |
138 | depends on ARM_S3C24XX_CPUFREQ | |
139 | help | |
140 | Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core | |
141 | ||
142 | config ARM_S3C24XX_CPUFREQ_DEBUGFS | |
143 | bool "Export debugfs for CPUFreq" | |
144 | depends on ARM_S3C24XX_CPUFREQ && DEBUG_FS | |
145 | help | |
146 | Export status information via debugfs. | |
147 | ||
148 | config ARM_S3C2410_CPUFREQ | |
149 | bool | |
150 | depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2410 | |
151 | select S3C2410_CPUFREQ_UTILS | |
152 | help | |
153 | CPU Frequency scaling support for S3C2410 | |
154 | ||
155 | config ARM_S3C2412_CPUFREQ | |
156 | bool | |
157 | depends on ARM_S3C24XX_CPUFREQ && CPU_S3C2412 | |
158 | default y | |
159 | select S3C2412_IOTIMING | |
160 | help | |
161 | CPU Frequency scaling support for S3C2412 and S3C2413 SoC CPUs. | |
162 | ||
34ee5507 HS |
163 | config ARM_S3C2416_CPUFREQ |
164 | bool "S3C2416 CPU Frequency scaling support" | |
165 | depends on CPU_S3C2416 | |
166 | help | |
167 | This adds the CPUFreq driver for the Samsung S3C2416 and | |
168 | S3C2450 SoC. The S3C2416 supports changing the rate of the | |
169 | armdiv clock source and also entering a so called dynamic | |
170 | voltage scaling mode in which it is possible to reduce the | |
735dc249 | 171 | core voltage of the CPU. |
34ee5507 HS |
172 | |
173 | If in doubt, say N. | |
174 | ||
175 | config ARM_S3C2416_CPUFREQ_VCORESCALE | |
0f194b56 KC |
176 | bool "Allow voltage scaling for S3C2416 arm core" |
177 | depends on ARM_S3C2416_CPUFREQ && REGULATOR | |
34ee5507 HS |
178 | help |
179 | Enable CPU voltage scaling when entering the dvs mode. | |
180 | It uses information gathered through existing hardware and | |
181 | tests but not documented in any datasheet. | |
182 | ||
183 | If in doubt, say N. | |
184 | ||
f023f8dd VK |
185 | config ARM_S3C2440_CPUFREQ |
186 | bool "S3C2440/S3C2442 CPU Frequency scaling support" | |
187 | depends on ARM_S3C24XX_CPUFREQ && (CPU_S3C2440 || CPU_S3C2442) | |
188 | select S3C2410_CPUFREQ_UTILS | |
189 | default y | |
190 | help | |
191 | CPU Frequency scaling support for S3C2440 and S3C2442 SoC CPUs. | |
192 | ||
15964d38 KK |
193 | config ARM_S3C64XX_CPUFREQ |
194 | bool "Samsung S3C64XX" | |
195 | depends on CPU_S3C6410 | |
196 | default y | |
197 | help | |
198 | This adds the CPUFreq driver for Samsung S3C6410 SoC. | |
199 | ||
200 | If in doubt, say N. | |
201 | ||
f7d77079 KK |
202 | config ARM_S5PV210_CPUFREQ |
203 | bool "Samsung S5PV210 and S5PC110" | |
204 | depends on CPU_S5PV210 | |
205 | default y | |
206 | help | |
207 | This adds the CPUFreq driver for Samsung S5PV210 and | |
208 | S5PC110 SoCs. | |
209 | ||
210 | If in doubt, say N. | |
211 | ||
59a2e613 VK |
212 | config ARM_SA1100_CPUFREQ |
213 | bool | |
214 | ||
215 | config ARM_SA1110_CPUFREQ | |
216 | bool | |
217 | ||
8def3103 SH |
218 | config ARM_SCPI_CPUFREQ |
219 | tristate "SCPI based CPUfreq driver" | |
73124ced | 220 | depends on ARM_BIG_LITTLE_CPUFREQ && ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI |
8def3103 SH |
221 | help |
222 | This adds the CPUfreq driver support for ARM big.LITTLE platforms | |
223 | using SCPI protocol for CPU power management. | |
224 | ||
225 | This driver uses SCPI Message Protocol driver to interact with the | |
226 | firmware providing the CPU DVFS functionality. | |
227 | ||
42099322 DS |
228 | config ARM_SPEAR_CPUFREQ |
229 | bool "SPEAr CPUFreq support" | |
230 | depends on PLAT_SPEAR | |
231 | default y | |
232 | help | |
233 | This adds the CPUFreq driver support for SPEAr SOCs. | |
dbb8d76e | 234 | |
ab0ea257 LJ |
235 | config ARM_STI_CPUFREQ |
236 | tristate "STi CPUFreq support" | |
237 | depends on SOC_STIH407 | |
238 | help | |
239 | This driver uses the generic OPP framework to match the running | |
240 | platform with a predefined set of suitable values. If not provided | |
241 | we will fall-back so safe-values contained in Device Tree. Enable | |
242 | this config option if you wish to add CPUFreq support for STi based | |
243 | SoCs. | |
244 | ||
109e13ea TT |
245 | config ARM_TEGRA20_CPUFREQ |
246 | bool "Tegra20 CPUFreq support" | |
dbb8d76e | 247 | depends on ARCH_TEGRA |
dbb8d76e VK |
248 | default y |
249 | help | |
109e13ea | 250 | This adds the CPUFreq driver support for Tegra20 SOCs. |
608eab22 | 251 | |
9eb15dbb TT |
252 | config ARM_TEGRA124_CPUFREQ |
253 | tristate "Tegra124 CPUFreq support" | |
b5832e4b | 254 | depends on ARCH_TEGRA && CPUFREQ_DT && REGULATOR |
9eb15dbb TT |
255 | default y |
256 | help | |
257 | This adds the CPUFreq driver support for Tegra124 SOCs. | |
258 | ||
939dc6f5 MP |
259 | config ARM_TEGRA186_CPUFREQ |
260 | tristate "Tegra186 CPUFreq support" | |
261 | depends on ARCH_TEGRA && TEGRA_BPMP | |
262 | help | |
263 | This adds the CPUFreq driver support for Tegra186 SOCs. | |
264 | ||
e13cf046 DG |
265 | config ARM_TI_CPUFREQ |
266 | bool "Texas Instruments CPUFreq support" | |
267 | depends on ARCH_OMAP2PLUS | |
268 | help | |
269 | This driver enables valid OPPs on the running platform based on | |
270 | values contained within the SoC in use. Enable this in order to | |
271 | use the cpufreq-dt driver on all Texas Instruments platforms that | |
272 | provide dt based operating-points-v2 tables with opp-supported-hw | |
273 | data provided. Required for cpufreq support on AM335x, AM437x, | |
274 | DRA7x, and AM57x platforms. | |
275 | ||
608eab22 PC |
276 | config ARM_PXA2xx_CPUFREQ |
277 | tristate "Intel PXA2xx CPUfreq driver" | |
278 | depends on PXA27x || PXA25x | |
279 | help | |
280 | This add the CPUFreq driver support for Intel PXA2xx SOCs. | |
281 | ||
282 | If in doubt, say N. | |
5477fb3b AC |
283 | |
284 | config ACPI_CPPC_CPUFREQ | |
285 | tristate "CPUFreq driver based on the ACPI CPPC spec" | |
a578884f | 286 | depends on ACPI_PROCESSOR |
5477fb3b AC |
287 | select ACPI_CPPC_LIB |
288 | default n | |
289 | help | |
290 | This adds a CPUFreq driver which uses CPPC methods | |
291 | as described in the ACPIv5.1 spec. CPPC stands for | |
292 | Collaborative Processor Performance Controls. It | |
293 | is based on an abstract continuous scale of CPU | |
294 | performance values which allows the remote power | |
295 | processor to flexibly optimize for power and | |
296 | performance. CPPC relies on power management firmware | |
297 | support for its operation. | |
298 | ||
299 | If in doubt, say N. |