This is a note to let you know that I've just added the patch titled
cpufreq: Add Loongson machine dependencies
to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: cpufreq-add-loongson-machine-dependencies.patch and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Thu Feb 1 14:14:46 CET 2018
From: James Hogan jhogan@kernel.org Date: Wed, 15 Nov 2017 21:17:55 +0000 Subject: cpufreq: Add Loongson machine dependencies
From: James Hogan jhogan@kernel.org
[ Upstream commit 0d307935fefa6389eb726c6362351c162c949101 ]
The MIPS loongson cpufreq drivers don't build unless configured for the correct machine type, due to dependency on machine specific architecture headers and symbols in machine specific platform code.
More specifically loongson1-cpufreq.c uses RST_CPU_EN and RST_CPU, neither of which is defined in asm/mach-loongson32/regs-clk.h unless CONFIG_LOONGSON1_LS1B=y, and loongson2_cpufreq.c references loongson2_clockmod_table[], which is only defined in arch/mips/loongson64/lemote-2f/clock.c, i.e. when CONFIG_LEMOTE_MACH2F=y.
Add these dependencies to Kconfig to avoid randconfig / allyesconfig build failures (e.g. when based on BMIPS which also has a cpufreq driver).
Signed-off-by: James Hogan jhogan@kernel.org Acked-by: Viresh Kumar viresh.kumar@linaro.org Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/cpufreq/Kconfig | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/cpufreq/Kconfig +++ b/drivers/cpufreq/Kconfig @@ -236,6 +236,7 @@ endif if MIPS config LOONGSON2_CPUFREQ tristate "Loongson2 CPUFreq Driver" + depends on LEMOTE_MACH2F help This option adds a CPUFreq driver for loongson processors which support software configurable cpu frequency. @@ -248,6 +249,7 @@ config LOONGSON2_CPUFREQ
config LOONGSON1_CPUFREQ tristate "Loongson1 CPUFreq Driver" + depends on LOONGSON1_LS1B help This option adds a CPUFreq driver for loongson1 processors which support software configurable cpu frequency.
Patches currently in stable-queue which might be from jhogan@kernel.org are
queue-4.4/cpufreq-add-loongson-machine-dependencies.patch