RE: [PATCH 3/7] PM / devfreq: Add generic imx bus driver
From: MyungJoo Ham <myungjoo.ham@samsung.com>
Date: 2019-08-13 02:33:38
Also in:
linux-arm-kernel, linux-pm
quoted hunk ↗ jump to hunk
Add initial support for dynamic frequency switching on pieces of the imx interconnect fabric. All this driver actually does is set a clk rate based on an opp table. No attempt is made to map registers or anything clever. Signed-off-by: Leonard Crestez <redacted> --- drivers/devfreq/Kconfig | 12 +++ drivers/devfreq/Makefile | 1 + drivers/devfreq/imx-devfreq.c | 148 ++++++++++++++++++++++++++++++++++ 3 files changed, 161 insertions(+) create mode 100644 drivers/devfreq/imx-devfreq.cdiff --git a/drivers/devfreq/Kconfig b/drivers/devfreq/Kconfig index defe1d438710..9088a151bafe 100644 --- a/drivers/devfreq/Kconfig +++ b/drivers/devfreq/Kconfig@@ -90,10 +90,22 @@ config ARM_EXYNOS_BUS_DEVFREQEach memory bus group could contain many memoby bus block. It reads PPMU counters of memory controllers by using DEVFREQ-event device and adjusts the operating frequencies and voltages with OPP support. This does not yet operate with optimal voltages. +config ARM_IMX_DEVFREQ + tristate "i.MX DEVFREQ Driver" + depends on ARCH_MXC || COMPILE_TEST + select DEVFREQ_GOV_PASSIVE + select DEVFREQ_GOV_SIMPLE_ONDEMAND + select DEVFREQ_GOV_USERSPACE + select PM_OPP
Hello, I have a simple question: Does it support ALL ARCH_MXC SoCs? Cheers, MyungJoo