- linaro-kernel - lists.linaro.org

by john stultz

Hey Nico, As posted in https://bugs.launchpad.net/linux-linaro/+bug/802693 the following commit has been causing boot hangs on some panda boards: arm: omap4: support pmu - 4fefbe94a77c3d3b5e75d386628c36298c72c57f Reverting it seems to resolve the hang. Avik doesn't see the problem on his board, but Zach and I both have hit it with ours. We have not gotten any traction on resolving the hang and its blocking Linaro Android Platform Images for panda. Since its been a week with no solution, I wanted to propose we revert that patch. How does that sound? thanks -john

14 years, 5 months

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Determining an ARM CPU's architecture

by Tixy

I'm trying to work out what compile time checks I can do determine which ARM architecture the kernel binary may be run on. Is __LINUX_ARM_ARCH__ the architecture that the kernel is being built to support, or is it the instruction set being used by the compiler? (If these aren't always the same.) Also, when a kernel is built for ARMv6 and ARMv7, I assume that __LINUX_ARM_ARCH__ == 6 ? Finally, is it safe to assume that a single kernel binary will never support both v5 and v6 hardware? What about v4 and v5? My ultimate goal is to correctly simulate ARM instructions which behave differently on different architectures, for this, there will also need to be some runtime checking. I can do this by running some test code at boot time, but does the kernel already have some CPU architecture or feature detection that I can make use of? I was also looking at the Instruction Set Attribute Register in CP15, these give me the exact information I want, but I suspect that determining their availability will be as difficult as writing code to probe the features I'm interested in (ARM/Thumb interworking). -- Tixy

14 years, 5 months

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Linux Kernel Summit topic proposal deadline later this month

by Paul E. McKenney

On the (unlikely) off-chance that this is new news... Please see https://sites.google.com/site/kernelsummit2011/proposals if you would like to submit proposals for discussion at this year's Linux Kernel Summit. Discussion of these proposals is on an open email list, see https://lists.linux-foundation.org/mailman/listinfo/ksummit-2011-discuss to subscribe or to view the archives. A goodly number of people in the Linux ARM community made the initial nomination list, see: https://sites.google.com/site/kernelsummit2011/nominated-list About 70 people will be selected from this list, but getting on the initial list is a good first step. Thanx, Paul

14 years, 5 months

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[ACTIVITY] week 26 2011 (2011-06-27 - 2011-07-01)

by Dave Martin

== Dave Martin <dmart> == === General Activity === * Some kernel patch work: * CPU info declaration macros -- No dissent upstream. These patches are now sitting in Will Deacon's tree waiting for him to send a pull request to Russell. * Will Deacon's Generic MMU off code -- helped fix an off- by-one type bug which was preventing the temporary stack's identity mapping from being installed properly. * More activity on minor bugs in gas: * http://sourceware.org/bugzilla/show_bug.cgi?id=12931 (ARM: gas fails to set the proper alignment on code sections, causing broken output) This is the issue which is contributing to the WebM codec failures in Firefox on ARM. Simple workaround proposed and merged upstream. * http://sourceware.org/bugzilla/show_bug.cgi?id=12848 (ARM: Thumb-2: Range check on b.w is off by a factor of 2) This issue is actually affecting virtually all branches in Thumb, including BL. Tidy-up/fix proposed upstream. === linaro-kernel-o-standard-arch === * Started an experimental merge of Catalin Marinas' LPAE (ARM Large Physical Address Extension) patches with linux- linaro-2.6.39. I now have a booting kernel on the ARM VExpress-CA15x4 model making use of physical memory beyond 4GB, but still having problems with SMP (probably a separate issue from LPAE / A15 support). === Plans === * Check whether the new kernel trees work in Thumb-2 on mx51evk and follow up with Freescale landing team. * Try merging the basic A15 / VExpress new memory map support from the AEL tree with linux-linaro-2.6.39 (i.e., no LPAE sup- port). These are likely to merge upstream sooner than LPAE, and may make sense in the linaro tree. * Follow up on Cortex-A15 FPGA platform availability. * Suggest we disable aligment fixups for linaro images, since gtk-sharp2 is now the only thing known to be affected.

14 years, 5 months

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[ACTIVITY] (Shawn Guo) 2011-06-27 - 2011-07-01

by Shawn Guo

=== Device Tree === * I stop posting board level dt patches (just keep it local for testing drivers), as it's still going to be a while before it can be merged due to a few unresolved issues. Instead I'm trying to get a few driver patches hit v3.1 merge window. Just sent out patches for serial, fec, gpio, and esdhc. Thanks Grant for the review and comments. Will respin for v2 soon. === ARM/imx consolidation === * None === Misc === * Sent a mxs-dma patch to skip request_irq for NO_IRQ, so that gpmi which gets multiple dma channels sharing one IRQ can work with mxs-dma too. * Co-worked with Troy Kisky to send a patch fix the issue that fec driver can not work with mii phy on imx53. === Plan === * v2 of serial, fec, gpio, esdhc dt support * spi, i2c, sdma dt support -- Regards, Shawn

14 years, 5 months

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[Activity] (Niklas Hernaeus) 2011-06-27 - 2011-07-01

by Niklas Hernaeus

== Niklas Hernaeus <nhe> == === General activity === * Got some real hardware, the Snowball. * Booted Snowball, without DT. * Changing dev environment, update of compiler necessary, again. The Sourcery G++ Lite 2011.03-41 for ARM GNU/Linux may generate unaligned function pointers, it would seem. Have not made any deep investigation, just want it to work. Thanks for the help Per, I would not have expected that kind of problem. === Issues === * Can not flash the Snowball eMMC, that is U-Boot. * Inherited from last week: What about hierarchy of devices in DT. What can/should be made common? Or flat file? gcl?

14 years, 5 months

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[ACTIVITY] (Manjunath GK) 2011-06-27 - 2011-07-02

by Manjunatha GK

== Manjunath GK <manjugk> == === Highlights === * Posted initial patches for migrating omap board file into DT. - i2c driver is converted to DT data structures. - patches created for omap4 panda and omap3 beagle boards. * The patches has dependency on omap HWMOD which needs to be aligned with OMAP SoC mainitainers * Working on modifying DT helper functions for code optimization. === Plans === * OMAP SoC mainitainers should revert back on the queries and dependencies posted to linux-omap and device tree mailing lists. * Continue to work on received comments. * Need to check other content in omap board file for DT migration. -- Manjunatha GK 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/>

14 years, 5 months

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[ACTIVITY] (Per Forlin) 2011-06-27 - 2011-07-01

by Per Forlin

== Per Forlin <perfor> == === Highlights === * Rebased mmc non-blocking patchset v8 on to of mmc-next for 3.1. The patchset has received a couple of acked-by and will hopefully be merged for 3.1. * Run mmc test on on ARM real view and U300 with help from Linus W. Made minor adjustments in the mmc_test as a result of realview and U300 testing * Helped Niklas H to get started on snowball (flash/build/boot). * Investigated why the eMMC on snowball is slow compared to U8500. I thought it might be a SW issue but it turned out that Snowball has a relatively slow eMMC. === Completed work items === * https://blueprints.edge.launchpad.net/linux-linaro/+spec/mmc-async-request * mmc-next linux 3.1 mmc async req, rebase and test: DONE * mmc-next linux 3.1 mmc async req, submit and review: DONE === Plans === Vacation 4 weeks in July. I will only follow up on mmc non-blocking during my vacation.

14 years, 5 months

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[Activity] (Venkatraman S) 2011-06-25 - 2011-07-02

by Venkatraman S

== Highlights == ( * Was on a training program for most of the working week) * Review / test MMC async request patches * Design for MMC-HPI implementation == Plans == * Continue with HPI implementation * Review / analyze adding flash media information to CFQ

14 years, 5 months

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[ACTIVITY] (Tixy) 2011-06-27 - 2011-07-03

by Tixy

=== Highlights === * Kprobe work items from blueprint "Finish Thumb2 Support" * Make ARM ALU and LDR instruction emulation interwork with Thumb: DONE * Tidyup and document kprobe changes: DONE * Add decoding table self consistency, and test case coverage checks: DONE === Plans === * Get patches for Thumb2 kprobes work submitted for review * Tidyup and document kprobe test code * Start work on blueprint "Investigate block allocation in FS"

14 years, 5 months

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[ACTIVITY] (John Stultz) June 27th - July 1st

by john stultz

=== Highlights === * Worked to get ADB over USB working for both Beagle and Panda boards for 2.6.39 * Updated linaro+android tree to linaro 11.06 final kernel * Worked on testing Android Alarm Timers integration with Posix Alarm Timers. * Sent pull requests to Tglx for patches I've queued for 3.1 * Started review of Kconfig code, had some discussions with folks from the Yocto project on how Kconfig fragments might help. Reached out to the author of Kconfig SAT work from a year ago to learn more. * Helped narrow down last minute Android Image issue with u-boot on beagleboard. * Working with TI patch author that caused the linux-3.0 panda ehci boot crash regression. Hoping to get a fix or a revert applied soon. * Sent in request for AOSP license grant, Patrik added me to the group, but unfortunately my account status hasn't seemed to be updated yet. === Plans === * Continue working to get panda ehci issue resolved before 3.0-final * Continue working on Android Alarm Timer rework to utilize upstreamed code. * Look at the ADB story on the android-3.0 branch (the ADB code is heavily reworked there). * Get back to Kconfig review/research. === Issues == * Too much breakage & regressions around Panda! * AOSP license grant group issues still remain before I can submit patches to AOSP

14 years, 5 months

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[Activity] (Linus Walleij) 2011-06-25 - 2011-07-01

by Linus Walleij

== Linus Walleij linusw == === Highlights === * Andrew merged the lm3530 patches to the mm tree. * Arnd pulled in the ux500 stuff to arm-soc as proof of concept, hey this seems to work! * Played with a RealView PB11MPCore, fixed three TCM patches when learning that I was mistaken thinking the PB11MPCore has TCM, actually nothing ARM multicore seems to have TCM, which simplifies that stuff. http://marc.info/?l=linux-arm-kernel&m=130944303522448&w=2 http://marc.info/?l=linux-arm-kernel&m=130944291922298&w=2 http://marc.info/?l=linux-arm-kernel&m=130944294622342&w=2 * Secured the stuff necessary to boot the ARM Integrator board, meaning I will have access to PB1176, PB11MPCore and Integrator, if I get it to work. * Lots of talk about pinctrl/pinmux subsystem with nVidia. * Submitted some internal DMA40 patches upstream, also added a patch of my own on top. http://marc.info/?l=linux-kernel&m=130916853306730&w=2 * Fixed a pesky staging driver for Synaptics RMI4 http://marc.info/?l=linux-kernel&m=130941558024742&w=2 * Talked to people from Lauterbach and ST Micro about their PID for HW-trace patch, reviewed code and gave some advice. * Helped Per Forlin test some generic MMC speedup patches. === Plans === * New iteration of the pinctrl + pinmux subsystem * Drive generalization of U300 and Nomadik GPIO * Get into struct clk generalization and movement of clk drivers into drivers/clk - handover from Jeremy Kerr. We will do this in Cambridge or something like that. * Vacation 2011-07-02 thru 2011-07-31 I will only do FUN hacking during vacation! See you in Cambridge. * Vacation after sprint meeting 2011-08-07 thru 2011-08-12 I will only do FUN hacking during vacation! === Issues === * Generalizing/consolidating GPIO control is on hold until the subsystem maintainer (i.e Grant) has time to look into it. Not much to worry about, we all have shortage of time. * Sync with Grant & Jeremy overdue, but I wouldn't be of any big use before the vacation anyway. Let's sync this in Cambourne. * Shanghaiied for some internal conflict resolution and patent advisory at ST-Ericsson. Not too much though. Thanks for reading, Linus Walleij

14 years, 5 months

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[ACTIVITY] (Arnd Bergmann) 2011-06-20 - 2011-06-27

by Arnd Bergmann

== Kernel maintainance == * Merged the first few trees (u8500, zynq) into the arm-soc tree * reviewed new PWM framework submission * some more cleanups for randconfig build errors * cleanup of the 8250 driver as preparation for getting rid of inb/outb on most platforms. * Review of highbank and sirfprima platforms * discussions of DMA mapping API patches from Marek Szyprowski == Plans == * Ask for more subarch pull requests, and merge the trees * Submit patches from randconfig errors * finalize 8250 cleanup

14 years, 5 months

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[RFC PATCH 0/2] ARM: kprobes: Table driven decoding of CPU instructions

by Tixy

Following a suggestion from Nicolas I have implemented table driven decoding of CPU instructions in kprobes. This is an alternative to the mass of if/else code in the original kprobes implementation. Also, by making the register usage in emulation code completely uniform, emulation functions can be more widely reused and all the separate prep_emulate_xxx functions unnecessary. All of infrastructure for this is in patch 1, and I am looking for feedback on this. I've also added a second patch which shows how this infrastructure is used to implement decoding and emulation of all the 32-bit Thumb instructions.

14 years, 5 months

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new linux linaro series and milestone

by Mounir Bsaibes

I have created a new Launchpad series for linux-linaro project and a new milestone to follow the agreed on naming convention: series should follow the upstream series milestone = series-yyyy.mm so the new series = 3.0 the new milestone = 3.0-2011.07 Please see https://launchpad.net/linux-linaro For July monthly release planning, you can target your blueprints or Work items to this new milestone 3.0-2011.07 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>

14 years, 5 months

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[ACTIVITY] (Dave Martin) 2011-06-20 - 2011-06-24

by Dave Martin

== Dave Martin <dmart> == (Apologies for the late report-- I have been having some power/connectivity problems) === General Activity === * CPU info declaration macros -- posted patches; few comments so far (positive or negative). These may get merged at the next merge window, depending on feedback. * Took a look at a firefox Thumb-2 related problem which breaks webm video: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/789198 video It turns out that a "weirdness" in gas is causing a load of ARM code connected with the webm code to be linked on an odd halfword boundary. This might be an assembler bug, but it's not 100% clear what the correct behaviour would be. === linaro-kernel-o-standard-arch === * thumb-2 now appears to be turned on globally for all boards in the linux-linaro-oneirii tree. "works" at a basic level for vexpress and mx51evk. I need to follow up with jcrigby on the exact status of this. === Plans === * Check whether the new kernel trees work in Thumb-2 on current Freescale landing team trees. * Follow up on Cortex-A15 model/platform availability.

14 years, 5 months

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[ACTIVITY] (Per Forlin) 2011-06-21 - 2011-06-24

by Dave Martin

== Dave Martin <dmart> == === General Activity === * CPU info declaration macros -- posted patches; few comments so far (positive or negative). These may get merged at the next merge window, depending on feedback. * Took a look at a firefox Thumb-2 related problem which breaks webm video: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/789198 video It turns out that a "weirdness" in gas is causing a load of ARM code connected with the webm code to be linked on an odd halfword boundary. This might be an assembler bug, but it's not 100% clear what the correct behaviour would be. === linaro-kernel-o-standard-arch === * thumb-2 now appears to be turned on globally for all boards in the linux-linaro-oneirii tree. "works" at a basic level for vexpress and mx51evk. I need to follow up with jcrigby on the exact status of this. === Plans === * Check whether the new kernel trees work in Thumb-2 on current Freescale landing team trees. * Follow up on Cortex-A15 model/platform availability.

14 years, 5 months

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[ACTIVITY] (Per Forlin) 2011-06-21 - 2011-06-24

by Per Forlin

== Per Forlin <perfor> == === Highlights === * Run mmc test to measure how bandwidth is affected by number of sg elements in an sg list. * two bug fixes in the mmc non-blocking code, compilation issue and mmc_test error. * adjusted ste_dma40 to comply with dmaengine documentation for issue_pending. * booted snowball on linux 3.0-rc4 === Completed WIs=== * https://blueprints.edge.launchpad.net/linux-linaro/+spec/dmaengine-improve-… * Update ste_dma40 to comply with documentation, to be use as reference for others: DONE * https://blueprints.edge.launchpad.net/linux-linaro/+spec/mmc-async-request * linux 3.0 mmc async req, update after review: DONE === Plans === * rebase and test mmc non-blocking for linux 3.1 * wrap up minor things before going on 4 weeks vacation in July

14 years, 5 months

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Boot hang with Panda w/ current linaro-2.6.39 kernel

by John Stultz

Trying to boot pandaboard w/ linaro-2.6.39 kernel hangs in early boot. Enabling EARLY_PRINTK showed the hang happening after: [ 0.420776] print_constraints: dummy: [ 0.425170] NET: Registered protocol family 16 [ 0.430206] GPMC revision 6.0 [ 0.437591] OMAP GPIO hardware version 0.1 [ 0.442474] OMAP GPIO hardware version 0.1 [ 0.446807] omap_device: omap_gpio.2: new worst case activate latency 0: 3057 [ 0.454833] OMAP GPIO hardware version 0.1 [ 0.459686] OMAP GPIO hardware version 0.1 [ 0.464569] OMAP GPIO hardware version 0.1 [ 0.469390] OMAP GPIO hardware version 0.1 [ 0.476440] omap_mux_init: Add partition: #1: core, flags: 2 [ 0.483764] omap_mux_init: Add partition: #2: wkup, flags: 2 [ 0.489807] error setting wl12xx data [ 0.496032] omap_device: omap_uart.0: new worst case deactivate latency 0: 37 [ 0.504150] omap_device: omap_uart.1: new worst case activate latency 0: 3057 [ 0.517211] hw-breakpoint: found 6 breakpoint and 1 watchpoint registers. [ 0.524322] hw-breakpoint: 1 breakpoint(s) reserved for watchpoint single-st. [ 0.531951] hw-breakpoint: maximum watchpoint size is 4 bytes. I bisected the issue down to: arm: omap4: support pmu - 4fefbe94a77c3d3b5e75d386628c36298c72c57f However, after reverting that patch against linaro-2.6.39, it then hangs a bit later after: [ 2.630554] omapdss HDMI: cannot lock PLL [ 2.630554] omapdss HDMI: CFG1 0xc00 [ 2.630554] omapdss HDMI: CFG2 0x2004 [ 2.630584] omapdss HDMI: CFG4 0x23955 [ 2.630584] omapdss HDMI error: failed to power on device [ 2.630645] omapdss error: failed to power on [ 2.630645] omapfb omapfb: Failed to enable display 'hdmi' [ 2.630645] omapfb omapfb: failed to initialize default display [ 2.632202] omapfb omapfb: failed to setup omapfb [ 2.632232] omapfb: probe of omapfb failed with error -5 [ 2.632720] regulator_init_complete: CLK32KG: incomplete constraints, leavinn [ 2.632873] regulator_init_complete: VAUX3_6030: incomplete constraints, lean [ 2.633056] regulator_init_complete: VAUX2_6030: incomplete constraints, lean [ 2.633209] regulator_init_complete: VDAC: incomplete constraints, leaving on [ 2.633392] regulator_init_complete: VCXIO: incomplete constraints, leaving n [ 2.633544] regulator_init_complete: VANA: incomplete constraints, leaving on [ 2.633697] regulator_init_complete: VPP: incomplete constraints, leaving on [ 2.633880] regulator_init_complete: VUSB: incomplete constraints, leaving on Any clues? Anyone else have much success with panda + current linaro-2.6.39? thanks -john

14 years, 5 months

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[ACTIVITY] (Shawn Guo) 2011-06-20 - 2011-06-24

by Shawn Guo

=== Device Tree === * Sent v2 of imx51-dt patch set that addresses the comments on v1 from Grant and Arnd * Added one patch into the series to get rid of the cpu_is_mx1() uses in imx serial driver, so that the DT binding can fit in the driver well. * Per Grant's request, added a couple of functions into DT infrastructure code for drivers to identify device id, which will be widely needed by drivers using pdev->id when migrating to DT. The patch is under Grant's review. === ARM/imx consolidation === * Added one more patch into imx-dma device cleanup series to pass the whole firmware name via platform_data without the churn of cpu name and TO version being variables. It's been acked by Vinod and the whole series will go through Sascha's tree. === Misc === * [Bug 754254] imx51 randomly truncates serial input at 31 characters. Sent a follow-up patch to Nicolas changing CD/WP to gpio mode on babbage for by-passing issue [1]. The fixing for the issue has been incorporated into v4 of the series, which gets no more comments and is waiting for Chris to merge. [1] http://article.gmane.org/gmane.linux.ports.arm.kernel/120790 === Plan === * DT on imx51 * imx cleanup and consolidation -- Regards, Shawn

14 years, 5 months

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[Activity] (Manjunath) 2011-06-20 to 2011-06-26

by Manjunatha GK

== Highlights == * Started migrating omap4 panda board "board file" into DT * Able to proceed with basic changes and getting base address from DT into i2c driver. * Facing issues with fetching interrupts from DT into device node structure. * Discussion about status and alignment at: - http://lists.ozlabs.org/pipermail/devicetree-discuss/2011-June/006102.html == Plan == * continue with i2c driver changes and resolve interrupts issue for board file changes. * omap soc uses hwmod data structures for platform_device_register. OMAP hwmod does more than base address and interrupts. - need to align on handling clock, sysconfig, dma irq's etc -- Manjunatha GK 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/>

14 years, 5 months

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[Activity] (Venkatraman S) 2011-06-20 to 2011-06-24

by Venkatraman S

== Highlights == * Working on HPI implementation patches * Review MMC async request patches * Review OMAP MMC runtime PM adaptation patches * Research on CFQ scheduler details == Plans == * On internal training from Jun 24 to 30

14 years, 5 months

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[ACTIVITY] (John Stultz) June 20th - 24th

by john stultz

=== Highlights === * Discussed at length upstream vs aosp priorities with Zach * Looked into requirements for getting AOSP account. * Got Alarmtimer fixes queued in -tip * Sent initial pass integrating Android Alarm timer to utilize CLOCK_BOOTTIME to Arve and Colin. * Implemented initial pass integrating Android Alarm timers to utilize the upstreamed alarm timers work. * Met w/ Darren Hart on the Kconfig fragment work for Linux Plumbers * Updated linaro+android tree to linaro 11.06 freeze kernel * Bisected and reported panda pmu related boot hang found testing linaro +android kernel. * Worked on internal presentation. === Plans === * Continue working on internal presentation * Get pull requests sent for queued 3.1 work sent out. * Start process for Android AOSP licence grant bits. * Continue working on android/posix alarmtimers mending * Start focusing on Kconfig work. === Issues === * NA

14 years, 5 months

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[ACTIVITY] (Thomas Abraham) 2011-06-20 - 2011-06-24

by Thomas Abraham

== Thomas Abraham <thomas-ab> == === Highlights === * Submitted first version of the device tree patches for smdkv310 board. Working on addressing comments from Grant Likely. * Completed few more power consumption tests on smdkv310 board with and without memory regions patches and shared the result with IBM engineers. * Wrote few helper functions as suggested and drafted by Grant Likely to read u32, u64 and string property values from dt nodes. === Plans === * .Submit the second version of device tree patches for smdkv310 board. === Misc === * On leave on 27th and 28th of June.

14 years, 5 months

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The Linaro monthly release cycle

by Nicolas Pitre

As you might know already, Linaro is moving to a monthly release of technology preview for most of the components being worked on. This obviously includes the kernel, so some coordination amongst all people involved is required. It was decided that those releases would happen on the last Thursday of each month, so for the 11.06 release this is June 30th. To give a chance for the kernel to be stable by that time, I'll effectively freeze it one week earlier i.e. on June 23rd for the 11.06 release. The last week before the actual release should be dedicated to testing and bug fixing only. So... what this means is that you need to send me any patches and/or pull requests for the Linaro kernel at least _8_ DAYS BEFORE THE RELEASE. Obviously, you can send me patches way before that deadline as well, which would be highly appreciated. Today is June 14th, meaning that there are less than 9 days left (less so if you don't include the weekend). We also hope that everyone will try to perform a bit more testing than usual during the last week, and also get involved in bug fixing activities until the release. If you have some concerns about this please let me know so we can find ways to improve things. Hopefully we'll get up to speed with this pace and there won't be any major problems. Nicolas

14 years, 5 months

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[Activity] (Linus Walleij) 2011-06-18 - 2011-06-24

by Linus Walleij

== Linus Walleij linusw == === Highlights === * Grant merged the SPI (PL022) patches to the SPI tree. * GKH merge thed serial (PL011) patchs to the TTY tree. * Andrew merged the lp5521 patch to the mm tree. * Russell merged patches that nuked the ARM build errors in kisskb on 5 platforms: h7201, h7202, iop13xx, iop32x and iop33x http://kisskb.ellerman.id.au/kisskb/branch/9/ * Sent a ux500 pull request to Arnd for the arm-soc tree, then I got impatient and sent another one :-) http://marc.info/?l=linux-arm-kernel&m=130864919918352&w=2 http://marc.info/?l=linux-arm-kernel&m=130882733131222&w=2 * Arranged access to a RealView PB11MPCore machine that may prove instrumental in ARM consolidation work. Ericsson Research has this machine, and they give me access to their premises permanently (noone else is using the machine anyway) * Sent a patch set to consolidate the RealView LEDs in the spirit of Bryan Wu's LED consolidation. Had to invent a new ARM CPU busy indicator LED trigger in the process: http://marc.info/?l=linux-arm-kernel&m=130876403431900&w=2 * Send a redux patchset for the Nomadik GPIO that excludes the generic config stuff that seems to have gone into limbo. http://marc.info/?l=linux-kernel&m=130883119803189&w=2 === Plans === * Swedish national holiday 2011-06-24 so absent that day, sending this report today. * New iteration of the pinctrl + pinmux subsystem, v4, v3 has been discussed a lot: http://marc.info/?l=linux-kernel&m=130798438705437&w=2 * Drive generalization of U300 and Nomadik GPIO * Get into struct clk generalization and movement of clk drivers into drivers/clk - handover from Jeremy Kerr * Vacation 2011-07-01 thru 2011-07-31 I will only do FUN hacking during vacation! * Vacation after sprint meeting 2011-08-07 thru 2011-08-12 I will only do FUN hacking during vacation! === Issues === * Generalizing/consolidating U300 and Nomadik GPIO controllers to use struct gpio_chip and gpiolib and struct irq_chip seems to be unpopular, I wonder if anyone cares? http://marc.info/?l=linux-kernel&m=130745442230555&w=2 http://marc.info/?l=linux-kernel&m=130391002623086&w=2 http://marc.info/?l=linux-kernel&m=130795463405616&w=2 * No clue where to find relevant WI:s in Launchpad, never used that stuff before. Thanks for reading, Linus Walleij

14 years, 5 months

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Hack to fix broken OMAP dss build in linaro 2.6.39 tree.

by John Stultz

So if the OMAP_DSS_DPI option is enabled, and the OMAP2_DSS_DSI option is not, you get the following build error with Nico's tree: drivers/video/omap2/dss/dpi.c: In function 'dpi_set_dsi_clk': drivers/video/omap2/dss/dpi.c:61: error: implicit declaration of function 'dsi_pll_calc_clock_div_pck' drivers/video/omap2/dss/dpi.c:66: error: implicit declaration of function 'dsi_pll_set_clock_div' drivers/video/omap2/dss/dpi.c: In function 'omapdss_dpi_display_enable': drivers/video/omap2/dss/dpi.c:192: error: implicit declaration of function 'dsi_pll_init' drivers/video/omap2/dss/dpi.c:209: error: implicit declaration of function 'dsi_pll_uninit' make[4]: *** [drivers/video/omap2/dss/dpi.o] Error 1 This was reported to the mailing list almost two weeks ago, and still is unfixed. The following hack works around the issue by making sure DSI is enabled if DPI is enabled. Although I suspect this fix would still break if OMAP3 was disabled, but no worse then it already does today. Nico: Hopefully a proper fix is on its way, but in the meantime, please consider merging this. thanks -john Signed-off-by: John Stultz <john.stultz(a)linaro.org> diff --git a/drivers/video/omap2/dss/Kconfig b/drivers/video/omap2/dss/Kconfig index 7a49a75..ae472a1 100644 --- a/drivers/video/omap2/dss/Kconfig +++ b/drivers/video/omap2/dss/Kconfig @@ -38,6 +38,7 @@ config OMAP2_DSS_COLLECT_IRQ_STATS config OMAP2_DSS_DPI bool "DPI support" + select OMAP2_DSS_DSI default y help DPI Interface. This is the Parallel Display Interface.

14 years, 5 months

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Status of the Freescale linaro-lt-mx53loco kernel

by Dirk Behme

From a short discussion at #linaro-kernel today there was the idea to start a thread about the status of the Freescale linaro-lt-mx53loco kernel. From a customer point of view, the recent linaro-lt-mx53loco kernel seems to have some issues: * Status of the of the Freescale landing team kernel git repository: http://lists.linaro.org/pipermail/linaro-kernel/2011-June/000502.html And going back in the history there seems to be no real progress since last December: http://lists.linaro.org/pipermail/linaro-dev/2010-December/001833.html * The recent hwpack_linaro-lt-mx53loco_20110617-0_armel_supported.tar.gz still uses a 2.6.35 kernel [1], while the landing team git repository already contains a 2.6.38 kernel [2] (lt-2.6.38 branch). But this hasn't found its way into a hwpack, yet. - Using above hwpack does result in broken VGA output at the loco board. The bug (including the fix) for this is https://bugs.launchpad.net/linux-linaro/+bug/795712 Sorry if anything above is wrong ;) A short discussion with Eric showed that the Freescale developers are quite busy. I'd like to start a discussion how the situation could be improved or what help might be needed. Opinions? Many thanks and best regards Dirk [1] Linux version 2.6.35-1001-linaro-lt-mx53 (buildd@crabapple) (gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-5ubuntu1) ) #1-Ubuntu PREEMPT Tue Mar 8 03:16:18 UTC 2011 [2] http://git.linaro.org/gitweb?p=bsp/freescale/linux-linaro-natty.git;a=summa…

14 years, 5 months

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[Activity] (Niklas Hernaeus) 2011-06-13 - 2011-06-17

by Niklas Hernaeus

== Niklas Hernaeus <nhe> == === General activity === * Viewed the device-tree code. * Changing dev environment, update of compiler necessary. * Administration: booking of next meeting in UK. === Issues === * What about hierarchy of devices in DT. What can/should be made common. Or flat file? gcl? * Problems with building. perfor will help out?

14 years, 5 months

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[ACTIVITY] (Arnd Bergmann) 2011-06-06 - 2011-06-17

by Arnd Bergmann

== Highlights == * Spent a lot of time fixing randconfig builds, now works on vexpress, exynos4, u8500, omap2+ and mxs * Blueprints and Specs for kernel storage performance * Reviewed new OpenRISC architecture patches * Reviewed device tree patches from a lot of places * Reviewed CMA patches * Reviewed generic watchdog patches * Reviewed Dialog DA905x device drivers == Plans == * Start merging subarch branches into the arm-soc tree

14 years, 5 months

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[ACTIVITY] (Dave Martin) week 24 2011 (2011-06-13 - 2011-06-17)

by Dave Martin

== Dave Martin <dmart> == === General Activity === * Some kernel patch work: * CPU info declaration macros -- A conclusion seems to have been reached on the form these should take. Some implementation work done; still need to finish, test and post. This should permit a fair number of lines to be removed from arch/arm/mm, without any functionality impact. * Will Deacon's Generic MMU off code -- helped fix an off- by-one type bug which was preventing the temporary stack's identity mapping from being installed properly. * More activity on minor bugs in gas: * http://sourceware.org/bugzilla/show_bug.cgi?id=12854 (ARM: Nonsensical argument shift specifications accepted for LSL/LSR/ASR/ROR mnemonics) * Tracking down some userspace alignment faults: * gtk-sharp2 -- https://bugs.launchpad.net/ubuntu/+source/gtk- sharp2/+bug/798315 * firefox -- https://bugzilla.mozilla.org/show_bug.cgi?id=626635 (already reported and fixed by other people upstream; fixed in 5.0 / oneiric) * Started a mail thread about whether we should be more aggressive in getting alignment faults fixed, particularly within Linaro. === linaro-kernel-o-standard-arch === * Testing of the linux-linaro-2.6.39 and linux-linaro-oneiric trees with Thumb-2: * Pinged John Rigby again -- he's agreed to try turning on Thumb-2 for the vexpress packaged kernel. * mx51evk status still to be determined * Did some investigation into what mx51evk is using FIQ for. Some compatibility issues for Thumb-2: still need to follow up with the the imx guys. === Plans === * Check whether the new kernel trees work in Thumb-2 on mx51evk and follow up with Freescale landing team. * Follow up on Cortex-A15 model/platform availability.

14 years, 5 months

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[ACTIVITY] (Manjunath GK) 2011-06-13 - 2011-06-17

by Manjunatha GK

== Highlights == * Tried to adapt OMAP I2C1 and twl driver into DT for panda board. - Looks like device registration for omap drivers is done in different way compared to other SoC's - Adapting OMAP device drivers requires DT internals study and also OMAP device registration might need some more changes. * DT documentation study and looking at other SoC driver adaptation into DT == Plan == * DT internals study for adapting OMAP drivers * OMAP kexec - plan pending[need to sync up with Anand G] -Manjunath

14 years, 5 months

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[ACTIVITY] (Shawn Guo) 2011-06-13 - 2011-06-17

by Shawn Guo

=== Device Tree === * Read device tree usage model document from Grant * Studied the irq_domain translation and device name overridden patches from Grant * Based on above infrastructure code, worked out a basic device tree kernel for imx51 babbage. With uart and fec supported added, the dt kernel can boot into console with nfs root. It could be a good base for starting playing dt and adding further device support. The patches were posted to lkml and lakml, and had the good feedback and valuable comments. Will respin for v2 soon. === ARM/imx consolidation === * Made some fixes on imx-dma device registration code, and cleaned the code up to register dma device in per-soc-init function. The fixing patches were picked up by Sascha, but the cleanup one has not yet. Will ping him for that. === Misc === * [Bug 754254] imx51 randomly truncates serial input at 31 characters. Posted v2 of the patches that add card-detect support for mx5, and acked by Wolfram. http://thread.gmane.org/gmane.linux.kernel.mmc/8558/ So sent the pull request to Nicolas and he pulled it. Heads-up for Nicolas: Arnaud Patard reported one issue with the patches as below. http://article.gmane.org/gmane.linux.ports.arm.kernel/120790 I will soon send a follow-up to get that fixed. === Plan === * v2 of the imx51-dt patch set -- Regards, Shawn

14 years, 5 months

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[ACTIVITY] (Per Forlin) 2011-06-13 - 2011-06-17

by Per Forlin

== Per Forlin <perfor> == === Highlights === * Rebased mmc async request on Linux 3.0 rc3. Had a lot of stability issue on rc3. Moved to rc3+ (torvalds HEAD) and then all tests pass. === Completed WIs=== * https://blueprints.edge.launchpad.net/linux-linaro/+spec/mmc-async-request * rebase patches on top of linux 3.0, run all tests: DONE * post linux 3.0 mmc async req support on mmc-list: DONE

14 years, 5 months

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[ACTIVITY] (John Stultz) June 13th - 17th

by john stultz

=== Highlights === * Reviewed and commented on clocksource entropy idea on lkml * Worked on a few RTC related bugs * Sent hack to linaro-dev to fix DPI/DSI build issue * Released a 2.6.39 based linaro+android kernel tree * Attended Android sync meeting with Deepak and Zach * Reviewed android-3.0 tree, noticed they have not integrated the upstream alarm timers code, and sent a mail to Colin Cross to see if there are any plans to do so. * Took some initial looks to see how hard re-implimenting the android alarmtimer code would be on top of my posix alarmtimers implementation. * Worked on internal presentation === Plans === * Push current RTC/alarmtimer fixes upstream * Continue working on internal presentation * Continue looking at android/posix alarmtimers merging * Generate linaro+android 11.06 freeze kernel * Send out select from choice block patch === Issues === * NA

14 years, 6 months

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[ACTIVITY] (Venkatraman S) 2011-06-13 - 2011-06-20

by Venkatraman S

== Highlights == * Study/Analyze MMC core layer for HPI implementation requirements * Review MMC async request patches * Anlayze OMAP dma-engine migration requirements * Review OMAP MMC runtime PM adaptation patches == Plans == * Understand next level details on K7.* storage BP implementation requirements * Freshen up the understanding of CFQ scheduler / block layer == Absence == * On internal training from Jun 23 to 28

14 years, 6 months

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[ACTIVITY] (Thomas Abraham) 2011-06-13 - 2011-06-17

by Thomas Abraham

== Thomas Abraham <thomas-ab> == === Highlights === * Completed re-run of tests with memory regions on smdkv310 board, but there were no significant power savings. * Discussed with Ankita, author of the memory regions patches, about the test cases being used and the reasons about no improvement in power savings. * Started with the device tree work items for Exynos4 platform. === Plans === * .Complete the registration of platform devices * Move board specific data to device trees.

14 years, 6 months

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MAC address issue on Panda

by Nicolas Pitre

Hello Andy, I forward ported the following patches from you to linaro-2.6.39: Author: Andy Green <andy(a)warmcat.com> Date: Thu Mar 24 21:27:29 2011 +0000 OMAP2+: add cpu id register to MAC address helper Introduce a generic helper function that can set a MAC address using data from the OMAP unique CPU ID register. For comparison purposes this produces a MAC address of 2e:40:70:f0:12:06 for the ethernet device on my Panda. Signed-off-by: Andy Green <andy.green(a)linaro.org> Acked-by: Arnd Bergmann <arnd(a)arndb.de> Author: Andy Green <andy(a)warmcat.com> Date: Thu Mar 24 21:27:38 2011 +0000 OMAP2+: PANDA: Fix up random or missing MAC addresses for eth0 and wlan0 This patch registers a network device notifier callback to set the mac addresses for the onboard network assets of Panda correctly, despite the drivers involved have used a random or all-zeros MAC address. The technique was suggested by Alan Cox on lkml. It works by device path so it corrects the MAC addresses even if the drivers are in modules loaded in an order that changes their interface name from usual (eg, the onboard module might be "wlan1" if there is a USB wireless stick plugged in and its module is inserted first.) Cc: Alan Cox <alan(a)lxorguk.ukuu.org.uk> Signed-off-by: Andy Green <andy.green(a)linaro.org> Acked-by: Arnd Bergmann <arnd(a)arndb.de> Could you please follow up with the appropriate maintainer (probably Tony Lindgren) to ensure those patches are merged upstream and not forgotten about? You may add my ACK as well. Thanks Nicolas

14 years, 6 months

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[Activity] (Linus Walleij) 2011-06-01 - 2011-06-17

by Linus Walleij

== Linus Walleij linusw == === Highlights === * New iteration of the pinctrl + pinmux subsystem, v3 - lots of discussion and feedback, especially nVidia are in on the discussions http://marc.info/?l=linux-kernel&m=130798438705437&w=2 * Discussing generalizing/consolidating U300 and Nomadik GPIO controllers to use struct gpio_chip and gpiolib and struct irq_chip like everyone else: http://marc.info/?l=linux-kernel&m=130745442230555&w=2 http://marc.info/?l=linux-kernel&m=130391002623086&w=2 http://marc.info/?l=linux-kernel&m=130795463405616&w=2 * Fixed a regression with dense irqs in genirq - merged for 3.0-rc3 http://marc.info/?l=linux-kernel&m=130710594612389&w=2 http://marc.info/?l=linux-kernel&m=130800615700607&w=2 * Fixed a regression in gpio-nomadik - merged for 3.0-rc3 http://marc.info/?l=linux-kernel&m=130761061704075&w=2 http://marc.info/?l=linux-kernel&m=130800615700607&w=2 * Pushed SPI (PL022), serial (PL011), LEDs (lm3530, lp5521) patches from ST-Ericsson to the various kernel lists so as to keep atleast some parts of the internal development in sync with community http://marc.info/?l=linux-kernel&m=130555091919052&w=2 http://marc.info/?l=linux-kernel&m=130555091919055&w=2 http://marc.info/?l=linux-kernel&m=130769286231000&w=2 http://marc.info/?l=linux-kernel&m=130769288131036&w=2 * Bit irritated with simple build errors in linux-next kisskb not getting fixed so pushed this for h720x: http://marc.info/?l=linux-arm-kernel&m=130812744532652&w=2 === Plans === * Drive generalization of U300 and Nomadik GPIO * Drive pinctrl/pinmux subsystem for the next two-four years or however long time it may take to form consensus * Get into struct clk generalization and movement of clk drivers into drivers/clk - handover from Jeremy Kerr * Vacation 2011-07-01 thru 2011-07-31 I will only do FUN hacking during vacation! * Vacation after sprint meeting 2011-08-07 thru 2011-08-12 I will only do FUN hacking during vacation! === Issues === * No clue where to find relevant WI:s in Launchpad, never used that stuff before. Thanks for reading, Linus Walleij

14 years, 6 months

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[ACTIVITY] (Tixy) 2011-06-13 - 2011-06-16

by Tixy

=== Highlights === * Kprobe work items from blueprint "Finish Thumb2 Support" * Modify ARM instruction emulation to use decode tables: DONE * Decide on and implement handling of conditional instruction probing: DONE * Make ARM ALU and LDR instruction emulation interwork with Thumb: INPROGRESS * Tidyup and document kprobe changes: INPROGRESS * Submitted an RFC PATCH to linaro-kernel containing the kprobes table driven instruction decoding implementation. === Plans === * On holiday 2011-06-16 to 2011-06-26

14 years, 6 months

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Fwd: linaro bot

by Mounir Bsaibes

Thanks to Fathi, we can use linarobot in our next #linaro-kernel meeting. Cheers, Mounir ---------- Forwarded message ---------- From: Fathi Boudra <fathi.boudra(a)linaro.org> Date: Tue, Jun 14, 2011 at 11:50 AM Subject: Re: linaro bot To: Mounir Bsaibes <mounir.bsaibes(a)linaro.org> Hi Mounir, On 14 June 2011 16:36, Mounir Bsaibes <mounir.bsaibes(a)linaro.org> wrote: > You have created the linarobot for the #linaro-meeting, right? Yes, I maintain the bot until the infrastructure has the time to resolve the related ticket (low priority). > Do you think we can use the same for #linaro-kernel meetings? done. > If yes, can you please let me know what we should do, to make use of the bot? It's a MeetBot. The commands are a bit different from MootBot on #linaro-meeting. Commands start with a #. Note: not all commands give feedback. Admin commands (for only Chairs): #startmeeting - Start a meeting. You are designated the owner (and have permanent chair powers). #endmeeting - End the meeting. Must be called by a chair. #topic - Set a new topic. #agreed - Document an agreement in the minutes. #chair - Add a chair. Multiple Chairs is allowed, you can have an assistant! Commands for Everyone: #info - Add an info item to the minutes. People should liberally use this for important things they say, so that they can be logged in the minutes. #action - Document an action item in the minutes. Include any nicknames in the line, and the item will be assigned to them. (nicknames are case-sensitive) #idea - Add an idea to the minutes. #help - Add a "Call for Help" to the minutes. Use this command when you need to recruit someone to do a task. (Counter-intuitively, this doesn't provide help on the bot) #link - Add a link to the meeting minutes. The link should be the first non-command on the line, other commentary after the link is OK. Links beginning with http:// and a few other protocols are automatically detected. The logs are available under http://people.linaro.org/~fboudra/linarobot/ Note: it's a cron so logs availability isn't immediate (every 5minutes sync) Cheers, Fathi

14 years, 6 months

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The linaro-2.6.39 kernel repository is now alive

by Nicolas Pitre

Time to leave 2.6.38 behind and move on! We now have a 2.6.39 based Linaro kernel which can be viewed here: http://git.linaro.org/gitweb?p=kernel/linux-linaro-2.6.39.git;a=summary or cloned from either of those: git://git.linaro.org/kernel/linux-linaro-2.6.39.git http://git.linaro.org/git/kernel/linux-linaro-2.6.39.git This will continue to evolve as this is just the beginning for that tree, so more stuff will be merged. Only smoke tested on a Dove board, and compile tested for OMAP so far. Most of the ARM related patches which made their way into v3.0-rc1 in mainline are included. However there might still be patches that were included in linaro-2.6.38 which are missing from linaro-2.6.39 at the moment. I might forward port some of them according to their importance, their look, or even my mood. So if you need extra patches on top of what's currently there please tell me and don't just assume I will pick them up from linaro-2.6.38 automatically (this is reverse garbage collection i.e. I'll simply leave unwanted patches behind). This is also a good opportunity for landing teams to test their git-rebase skills and move ahead to linaro-2.6.39. Enjoy! Nicolas

14 years, 6 months

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[ACTIVITY] (Thomas Abraham) 2011-06-06 - 2011-06-10

by Thomas Abraham

== Thomas Abraham <thomas-ab> == === Highlights === * Completed the power measurement with and without memory regions patches, but did not find any savings in power consumed. * Did further testing at hardware level (with only u-boot executing, no linux) and found a issue with memory controller settings. After fixing the issue, there is about 60mA of savings when all the banks of the 4 DDR3 modules connected to one memory controller are kept in precharge power-down mode versus when read/write activity are active on them. * Submitted third version of the clkdev patches. === Plans === * Re-run the tests with memory regions patches. Also find a test equipment that can provide average power consumed when a test case is executed.

14 years, 6 months

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[ACTIVITY] (Paul E. McKenney) 2011-06-06 - 2011-06-10

by Paul E. McKenney

== Paul E. McKenney <paulmck> == === Highlights == * RCU priority boosting in mainline seems to have quieted down. * Participated in LKML discussions on memory regions (it appears that Intel would prefer to ignore memory regions in favor of requiring a GPU on all systems). * Continued working on ARM server whitepaper. * Attended more public plan reviews. == Miscellaneous == * Processed more license requests. * Miscellaneous RCU maintainership work.

14 years, 6 months

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[Activity] (Niklas Hernaeus) 2011-06-07 - 2011-06-09

by Niklas Hernaeus

== Niklas Hernaeus <nhe> == === General activity === * Viewed the device-tree code. * Studied the new blueprints for device-tree for u8500. * Tried to dabble with the dtc. -> going to contact gcl.

14 years, 6 months

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[ACTIVITY] (Dave Martin) weeks 22 - 23 2011 (2011-05-30 - 2011-06-10)

by Dave Martin

== Dave Martin <dmart> == === General Activity === * Some kernel patch work: * Proposed a couple of suggestions for avoiding misalignment of data structures in assembler. * Some discussion with Will Deacon on a generic backend for turning the MMU off so that this doesn't have to be reinvented by kexec and hibernation code. (There seems to be no reasonably correct implementation of this in the kernel as yet, which is one of the reasons kexec has never worked reliably for ARM.) * Investigating how the kernel boot protocol can be clarified for better Thumb-2 compatibility. * More activity on minor bugs in gas: * http://sourceware.org/bugzilla/show_bug.cgi?id=12848 (ARM: Thumb-2: Range check on b.w is off by a factor of 2) * http://sourceware.org/bugzilla/show_bug.cgi?id=12854 (ARM: Nonsensical argument shift specifications accepted for LSL/LSR/ASR/ROR mnemonics) === linaro-kernel-o-standard-arch === * Testing of the linux-linaro-2.6.39 and linux-linaro-oneiric trees with Thumb-2: * Generic Thumb-2 booting didn't work because of breakage by a random patch. Spent some time trying to debug this-- Now fixed by a patch from Nicolas Pitre. (He beat me to it!) * vexpress now works in Thumb-2 * OMAP new works in Thumb-2 * mx51evk status still to be determined * Did some investigation into what mx51evk is using FIQ for. Some compatibility issues for Thumb-2: still need to follow up with the the imx guys. === Plans === * Ping John Rigby again re enabling Thumb-2 for the vexpress kernel. * Check whether the new kernel trees work in Thumb-2 on mx51evk and follow up with Freescale landing team. === Issues === * Some disruption due to an office relocation. Mostly back to normal now.

14 years, 6 months

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[ACTIVITY] (Per Forlin) 2011-06-07 - 2011-06-09

by Per Forlin

== Per Forlin <perfor> == === Highlights === * Set up pandaboard for wifi using wl12xx driver. * I couldn't get wl12xx_sdio_test to work, instead I used the normal wl12xx wifi driver to study the execution flow. * Made the conclusion that mmc async request function in core.c is applicable for SDIO as well. === Completed WIs=== * https://blueprints.edge.launchpad.net/linux-linaro/+spec/mmc-async-request * Set up SDIO client for test purposes, wl12xx on pandaboard: DONE * investigate if/how SDIO clients may utilize async request support in core.c: DONE === Plans === * Rebase mmc async request on Linux 3.0 and submit

14 years, 6 months

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[ACTIVITY] (Manjunath GK) 2011-06-06 - 2011-06-10

by Manjunatha GK

== Manjunath G Kondaiah <manjugk> == === Highlights === * Started adapting regulator data to DT structures for OMAP panda board - looking into modifications for i2c controller and twl-core driver - used grant's beagle board i2c modification as reference. - facing issues with getting data from DT structure into twl-core driver...debug in progress * DT Documentation reading in progress - Documentation/devicetree/bindings/i2c - Documentation/devicetree/booting-without-of.txt - http://devicetree.org/Device_Tree_Usage -Manjunath

14 years, 6 months

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[ACTIVITY] (Shawn Guo) 2011-06-06 - 2011-06-10

by Shawn Guo

== Shawn Guo (shawnguo) == === Device Tree === * None === ARM/imx consolidation === * Converted gpio-mxc and gpio-mxs to use basic_mmio_gpio and generic irq chip * Converted mx5 interrupt controller tzic to use generic irq chip === Misc === * [Bug 754254] imx51 randomly truncates serial input at 31 characters. This is a system performance issue caused by lacking of card detection interrupt support in esdhc driver. The patch submitted for upstream is below. http://thread.gmane.org/gmane.linux.kernel.mmc/8495 === Plan === * imx consolidation and device-tree stuff -- Regards, Shawn

14 years, 6 months

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[ACTIVITY] (Deepak Saxena) 2011-06-06 - 2011-06-10

by Deepak Saxena

== Deepak Saxena <dsaxena> == === Highlights === * Finishing up coordination of 11.11 work * Traveled to Austin to meet with Kiko, Zach, Paul L., and Mouni to discuss various topics includingr: * Continuous integration/validation cycle * Android LEB deliverables and kernel ownership * Test framework needs from kernel team and vice versa * How to get Landing Teams more upstream focused * IRC meeting with Arnd and Per to go over storage BPs for 11.11 * Linus W. from ST-E joining KWG === Plans for Next Week === *Start work on "ARM Porting Guide" * Various 1:1s with team members * Device Tree coordination meeting (Deepak, Grant, Manju, Shawn, Niklas, Thomas, Linus) * Storage work coordination meeting (Deepak, Arnd, Per, Venkat, Tixy) * Put together slides for upstreaming/consolidation update to TSC (Due June 22) * Close out on kernel monthly release process for 11.11 cycle === Upcoming Travel/Time Off === Out Friday June 17th - Mon June 20th, (in the middle of the woods no Internet or phone access)

14 years, 6 months

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