Hi, I have tested this patch set on Odroid-XU4 and get: [ 2.140821] cpu cpu0: Looking up cpu-cluster.1-supply from device tree [ 2.142780] cpu cpu0: bL_cpufreq_init: CPU 0 initialized [ 2.146858] cpufreq: ondemand governor failed, too long transition latency of HW, fallback to performance governor [ 2.161574] cpu cpu4: Looking up cpu-cluster.0-supply from device tree [ 2.163277] cpu cpu4: bL_cpufreq_init: CPU 4 initialized [ 2.167263] cpufreq: ondemand governor failed, too long transition latency of HW, fallback to performance governor [ 2.180092] arm_big_little: bL_cpufreq_register: Registered platform driver: dt-bl cpufreq stays in performance mode and does not change down from highest frequency. Had the same behaviour with Ben Gamari's patch. Thanks, -- Markus Am 04.12.2015 um 18:30 schrieb Bartlomiej Zolnierkiewicz: > Hi, > > This patch series adds generic arm_big_little_dt cpufreq driver > support for Exynos542x/5800 (using the new CPU clock type which > allows it). It also: > - enhances arm_big_little[_dt] driver with CPU cluster regulator > support > - adds CPU clock configuration data and CPU operating points > setup for Exynos542x/5800 > - adds CPU cluster regulator supplies for Exynos542x/5800 boards > > This patch series has been tested on Exynos5422 based ODROID-XU3 > Lite board. > > Please note that this is not a final version of the patchset. > I just wanted to push out current work-in-progress patches that > integrate changes from Anand, Ben and me. > > TODO: > - porting the Exynos542x/5800 support over cpufreq-dt > > Depends on: > - next-20151124 branch of linux-next kernel tree > > Changes since v2: > - ported over next-20151124 branch > - integrated missing CLK_RECALC_NEW_RATES flags fix to patch #3 > (from Anand Moon) > - added regulator supply properties for ODROID-XU3 Lite and > ODROID-XU4 in patch #2 > - ported CPU OPPs to operating-points-v2 (from Ben Gamari) > - added "ARM: dts: Exynos5422: fix OPP tables" patch (from Ben > Gamari) > - added "cpufreq: arm-big-little: accept operating-points-v2 > nodes" patch (from Ben Gamari) > - renamed OPP nodes as opp@<opp-hz> > > Changes since v1: > - added CPU cluster regulator supply properties to > exynos5420-arndale-octa.dts, exynos5420-peach-pit.dts, > exynos5420-smdk5420.dts and exynos5800-peach-pi.dts > > Changes over Thomas' original v12 code: > - split Exynos5420 and Exynos5800 support > - moved E5420_[EGL,KFC]_DIV0() macros to clk-exynos5420.c > - disabled cpufreq if big.LITTLE switcher support is enabled > - enhanced arm_big_little[_dt] driver with CPU cluster regulator > support > - fixed CPU clock configuration data for Exynos5800 > - fixed CPU operating points setup for Exynos5800 > - added CPU cluster regulator supplies for ODROID-XU3 board > > Best regards, > -- > Bartlomiej Zolnierkiewicz > Samsung R&D Institute Poland > Samsung Electronics > > > Bartlomiej Zolnierkiewicz (4): > cpufreq: arm_big_little: add cluster regulator support > ARM: dts: Exynos5420/5800: add cluster regulator supply properties > clk: samsung: exynos5800: fix cpu clock configuration data > ARM: dts: Exynos5800: fix CPU OPP > > Ben Gamari (2): > ARM: dts: Exynos5422: fix OPP tables > cpufreq: arm-big-little: accept operating-points-v2 nodes > > Thomas Abraham (4): > clk: samsung: exynos5420: add cpu clock configuration data and > instantiate cpu clock > ARM: dts: Exynos5420: add CPU OPP and regulator supply property > ARM: Exynos: use generic cpufreq driver for Exynos5420 > ARM: Exynos: use generic cpufreq driver for Exynos5800 > > .../bindings/cpufreq/arm_big_little_dt.txt | 4 + > arch/arm/boot/dts/exynos5420-arndale-octa.dts | 8 + > arch/arm/boot/dts/exynos5420-peach-pit.dts | 8 + > arch/arm/boot/dts/exynos5420-smdk5420.dts | 8 + > arch/arm/boot/dts/exynos5420.dtsi | 122 ++++++++++++++ > arch/arm/boot/dts/exynos5422-cpus.dtsi | 10 ++ > arch/arm/boot/dts/exynos5422-odroidxu3-lite.dts | 8 + > arch/arm/boot/dts/exynos5422-odroidxu3.dts | 8 + > arch/arm/boot/dts/exynos5422-odroidxu4.dts | 8 + > arch/arm/boot/dts/exynos5800-peach-pi.dts | 8 + > arch/arm/boot/dts/exynos5800.dtsi | 165 +++++++++++++++++++ > arch/arm/mach-exynos/exynos.c | 8 + > drivers/clk/samsung/clk-exynos5420.c | 88 ++++++++++- > drivers/cpufreq/arm_big_little.c | 175 +++++++++++++++++---- > drivers/cpufreq/arm_big_little_dt.c | 12 +- > include/dt-bindings/clock/exynos5420.h | 2 + > 16 files changed, 608 insertions(+), 34 deletions(-) > -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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