linaro-dev December 2011

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139 participants
148 discussions

[PATCH 0/7] RFC: convert OMAP to common struct clk

by Mike Turquette

This patch series is an RFC for converting OMAP to the common struct clk. These patches are based on v4 of the common struct clk series: https://lkml.org/lkml/2011/12/13/451 OMAP's old struct clk has been renamed to struct clk_hw_omap, but left essentially the same. This series only targets OMAP4 and was only tested on a 4430 Panda. The next step is to figure out: * what are the various clk types we want to support in separate structures * where does the "clk driver" code live (still in mach-omap2?) * kill off plat-omap/clock.* completely? I vote yes. These patches can also be found at, http://git.linaro.org/gitweb?p=people/mturquette/linux.git;a=shortlog;h=ref… The same series merged with Kevin's PM branch (to get CPUfreq working) can be found at, http://git.linaro.org/gitweb?p=people/mturquette/linux.git;a=shortlog;h=ref… This series will be followed up shortly with another set of patches for "testing" the clk rate change notifiers, parent propagation of rate changes and debugfs re-parenting. Mike Turquette (7): OMAP: Kconfig: select GENERIC_CLK HACK: omap4: clk: convert to common struct clk HACK: omap: convert 44xx data to common struct clk omap: hwmod: convert to use common struct clk omap: panda: use clk_prepare in ehci init omap: dss: use clk_prepare in dss reset HACK: comment WARN_ON in _clkdm_clk_hwmod_disable arch/arm/mach-omap2/Kconfig | 1 + arch/arm/mach-omap2/board-omap4panda.c | 1 + arch/arm/mach-omap2/clkt_clksel.c | 195 +- arch/arm/mach-omap2/clkt_dpll.c | 54 +- arch/arm/mach-omap2/clock.c | 363 +-- arch/arm/mach-omap2/clock.h | 59 +- arch/arm/mach-omap2/clock44xx_data.c | 4615 ++++++++++++++++++------------- arch/arm/mach-omap2/clockdomain.c | 2 +- arch/arm/mach-omap2/display.c | 4 +- arch/arm/mach-omap2/dpll3xxx.c | 228 +- arch/arm/mach-omap2/dpll44xx.c | 62 +- arch/arm/mach-omap2/omap_hwmod.c | 54 +- arch/arm/plat-omap/clock.c | 315 +-- arch/arm/plat-omap/include/plat/clock.h | 96 +- 14 files changed, 3415 insertions(+), 2634 deletions(-) -- 1.7.5.4

12 years, 10 months

linaro powertop doesn't work well on a single core ARM SoC

by Barry Song

Hi Tony/Amit, anybody has tried to use powertop from linaro on a single core ARM SoC? What i am using is git://android.git.linaro.org/platform/external/powertop.git. I got two questions: 1. powertop will crash in handle_one_cpu() due to it gets wrong cpu number(-1), then i made the following change to make it work: powertop: fix segment fault for single cpu env Signed-off-by: Barry Song <baohua.song(a)csr.com> diff --git a/cpu/cpu.cpp b/cpu/cpu.cpp index 29fc72c..c56c746 100644 --- a/cpu/cpu.cpp +++ b/cpu/cpu.cpp @@ -302,6 +302,9 @@ void enumerate_cpus(void) model = strtoull(c, NULL, 10); } } + + if (number == -1) + number = 0; if (strncasecmp(line, "bogomips\t", 9) == 0) { handle_one_cpu(number, vendor, family, model); set_max_cpu(number); 2. after fixing problem1, powertop can run on PrimaII, but i always get 0.0% for every p states as you can see from attached pic. but if we check cpufreq stats in /sys/devices/system/cpu/cpu0/cpufreq/stats, my system does change freq based on ondemand. # cat time_in_state 800000 2064 600000 181 400000 341 200000 60381 # cat trans_table From : To : 800000 600000 400000 200000 800000: 0 13 13 14 600000: 5 0 3 5 400000: 5 0 0 11 200000: 29 0 0 0 # cat total_trans 98 does anyone have experiences about it? Thanks barry

12 years, 10 months

latest linux-linaro-3.1 compile errors

by John Rigby

With the latest 3.1.5 merge linux-linaro-3.1 fails to build on Jenkins: https://ci.linaro.org/jenkins/view/All%20CI/job/linux-linaro-3.1_panda-omap… GEN .version CHK include/generated/compile.h UPD include/generated/compile.h CC init/version.o LD init/built-in.o LD .tmp_vmlinux1 `oprofile_arch_exit' referenced in section `.init.text' of arch/arm/oprofile/built-in.o: defined in discarded section `.exit.text' of arch/arm/oprofile/built-in.o `oprofile_arch_exit' referenced in section `.init.text' of arch/arm/oprofile/built-in.o: defined in discarded section `.exit.text' of arch/arm/oprofile/built-in.o I originally saw this with my packaged kernel builds so checked the unpackaged version to see if it was a config/sauce issue from packaging.

12 years, 10 months

Re: Origen boards in Lava

by Paul Larson

Great work getting this up and running Dave, and thanks to Sangwook for his support in helping us sort out issues with usb ethernet dongles. I'm doing some smoke testing on the boards right now in preparation for having regular, daily runs going. Thanks, Paul Larson On Thu, Dec 8, 2011 at 3:12 AM, Dave Pigott <dave.pigott(a)linaro.org> wrote: > > Hi all, > > A slightly higher resolution version. The lower shelf contains 9 of our 10 > Origens - this is rack 2, Origen 1 is in rack 1. > > Thanks > > Dave > > Dave Pigott > Validation Engineer > T: +44 1223 45 00 24 | M +44 7940 45 93 44 > Linaro.org <http://www.linaro.org/>* **│ *Open source software for ARM > SoCs**** > Follow *Linaro: *Facebook <http://www.facebook.com/pages/Linaro> | Twitter<http://twitter.com/#%21/linaroorg> > | Blog <http://www.linaro.org/linaro-blog/> > > On 8 Dec 2011, at 09:09, Sangwook Lee wrote: > > <Lava7Dec11.jpg> > > >

12 years, 10 months

Ubuntu ODM

by Joey STANFORD

Hi, In case you haven't seen this yes, Ubuntu has a new (updated) site for ODMs. Might be useful if you work on the Linaro Ubuntu LEB and components. http://odm.ubuntu.com/ Joey

12 years, 10 months

[Activity] Power Management WG Weekly Status report for week ending 2011-12-09

by Mounir Bsaibes

Enclosed please find the link to the Weekly Status report & meeting minutes for the Power Management working group for the week ending 2011-12-09 == Weekly Status Report == https://wiki.linaro.org/WorkingGroups/PowerManagement/Status/2011-12-08 == Meeting Minutes == https://wiki.linaro.org/WorkingGroups/PowerManagement/Meetings/2011-12-07 == Summary == (For details, see the Weekly Status Report and Meeting Minutes ) * Linaro Connect http://connect.linaro.org/events/event/lcq1-12/ initial session blueprints are set: https://blueprints.launchpad.net/sprints/lcq1-12?searchtext=power-management * Common Clock * Implemented notification will push the patches next. * Discussion on going about where the common struct code will reside, looks like it may stay in the kernel source while the binding code will be in the DT. * Cpuidle * Submitted a patch for common ARM cpuidle patch * Submitted v4 patches for exynos4210 cpuidle support with Russell fixes. * Sched_mc * Preparing a new version of sched_mc for ARM * Working on submitting a patch on scheduler and cpu_power, which has been accepted into Nico Linaro-kernel tree * Thermal Management * Tested that temperature is reduced in production using the current solution-done on Origen board. * Added and posted the patch for a new trip type needed for cooling devices like cpufreq. * Working on adding a generic processor cooling devices(non ACPI based, for ACPI already exists). * Continue to work on i.MX6 cpufreq and thermal solution. Best regards, Mounir -- Mounir Bsaibes Project Manager Follow Linaro.org: facebook.com/pages/Linaro/155974581091106 http://twitter.com/#!/linaroorg http://www.linaro.org/linaro-blog <http://www.linaro.org/linaro-blog>

12 years, 10 months

Presentation on benchmarking techniques

by Michael Hope

Hi there. I did a presentation on benchmarking techniques recently that covered our method, measuring, the statistics, and some future directions like STM. A copy is available at: http://people.linaro.org/~michaelh/presentations/Benchmarking%20Techniques%… The notes version is a bit more readable: http://people.linaro.org/~michaelh/presentations/Benchmarking%20Techniques%… You can also get the original from Launchpad: bzr branch lp:~michaelh1/+junk/benchmarking-techniques -- Michael

12 years, 10 months

Re: [PATCH v3 4/5] clk: basic gateable and fixed-rate clks

by Andrew Lunn

Hi Mike +int clk_register_gate(struct device *dev, const char *name, unsigned long flags, + struct clk *fixed_parent, void __iomem *reg, u8 bit_idx, + int set_to_enable) + How do you suggest handling gated clocks which are already running when calling the register function? On my kirkwood bases system, the bootloader has already turned on a number of clocks. It does not seem right to start messing with clk->enable_count and clk->prepare_count. Could clk_register_gate() have one more parameter, a bool indicating running? The kirkwood mach code keeps a bitmap of which platform_data init functions are called from the board file. In a late_initcall function it then enables and disables clocks as needed. What i was thinking is i can ask the hardware what clocks are already running before i register them and register them as running/not running. Then let the driver probe functions use the API to enable clocks which are really needed. In a late_initcall function, i would then call clk_disable(), clk_unprepare() on clocks which the boot loader started, thus turning them off if no driver has claimed them. Is this how you envisage it working? Thanks Andrew

12 years, 10 months

11.12 Android toolchain

by Bernhard Rosenkränzer

Hi, The next RC of the Android toolchain 11.12 (this is more than likely identical to the final) is ready. https://android-build.linaro.org/builds/~linaro-android/toolchain-4.6-2011.… It updates to the 11.12 release from the toolchain WG and makes sure gold is built with gcc 4.5 so we don't get dependencies on a current libstdc++. I'm updating all official builds. ttyl bero

12 years, 10 months

[PATCH]: Initialize the USB phy during panda misc_init_r

by Lalancette, Christopher

Hi John, Attached is a somewhat cleaned up version of the USB patch that seems to work on my pandaboard. I figured you could include it in your new u-boot-linaro-stable repository in lieu of the other one. I'm not quite sure how you want patches to work; do you want me to submit patches to you, or should I just try to send them to upstream u-boot as I have them? Thanks, -- Chris Lalancette

12 years, 10 months

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linaro-dev December 2011