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authorTuomas Tynkkynen <ttynkkynen@nvidia.com>2015-05-13 17:58:48 +0300
committerThierry Reding <treding@nvidia.com>2015-07-16 10:34:09 +0300
commit9eb15dbbfa1a23b5e65efaf1d5d6c47798e7264b (patch)
tree0cb5e613376fd40affefb2a340d0330cb905d487 /drivers/cpufreq/Kconfig.arm
parent109e13eaa40dfebf8893234cc5f1535a04e23acf (diff)
downloadlinux-9eb15dbbfa1a23b5e65efaf1d5d6c47798e7264b.tar.xz
cpufreq: Add cpufreq driver for Tegra124
Add a new cpufreq driver for Tegra124. Instead of using the PLLX as the CPU clocksource, switch immediately to the DFLL. It allows the use of higher clock rates, and will automatically scale the CPU voltage as well. Besides the CPU clocksource switch, we let the cpufreq-dt driver for all the cpufreq operations. This driver also relies on the DFLL driver to fill the OPP table for the CPU0 device, so that the cpufreq-dt driver knows what frequencies to use. Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com> Signed-off-by: Mikko Perttunen <mikko.perttunen@kapsi.fi> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/cpufreq/Kconfig.arm')
-rw-r--r--drivers/cpufreq/Kconfig.arm7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index ef402869576f..24e5c664683f 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -254,6 +254,13 @@ config ARM_TEGRA20_CPUFREQ
help
This adds the CPUFreq driver support for Tegra20 SOCs.
+config ARM_TEGRA124_CPUFREQ
+ tristate "Tegra124 CPUFreq support"
+ depends on ARCH_TEGRA && CPUFREQ_DT
+ default y
+ help
+ This adds the CPUFreq driver support for Tegra124 SOCs.
+
config ARM_PXA2xx_CPUFREQ
tristate "Intel PXA2xx CPUfreq driver"
depends on PXA27x || PXA25x