Qualcomm SOC Mainlining Project

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Here is some information about the Qualcomm SOC mainlining project.

[ this page is currently a stub ]

Project List

List of items that need to be mainlined, or are "in flight" (as of June, 2014):

  • regulators - Josh Cartwright?, Bjorn Andersson?
  • clocks - Stephen Boyd
  • RPM
  • SD Card Controller - Srinivas Kandagatla
  • 8084 clock controller - Georgi Djakov
  • dma engine - Andy Gross
  • SOC-specific
    • 8084
    • 8974
  • SOC DT file? - Kumar Gala?
  • USB support
    • USB host mode for HS port - Tim Bird
    • dwc3 (superspeed) USB driver
  • spmi - ??

Project Table

This might be too time-consuming to maintain?

Feature or Item Person Notes Link Last activity
USB - msm_otg host mode Tim Bird I'm currently working on the pmic_id_irq, which require spmi support.

I got stuck on the DT EPROBE_DEFER support issue.

<no links yet> none yet
SD card controller Srinivas Kandagatla This patch series adds Qualcomm SD Card Controller support in pl180 mmci

driver. QCom SDCC is basically a pl180, but bit more customized, some of the register layouts and offsets are different to the ones mentioned in pl180 datasheet. The plan is to totally remove the standalone SDCC driver drivers/mmc/host/msm_sdcc.* and start using generic mmci driver for all Qualcomm parts, as we get chance to test on other Qcom boards.



DT stuff for 8084 Georgi Djakov Adds DT nodes for the APQ8084 global clock controller and serial port. https://www.mail-archive.com/linux-arm-msm@vger.kernel.org/msg09096.html 2014-06-03

[ add links to most recently posted patches] [ add person who is working on each part ]

Specific Hardware


mailing list

IRC channel

You can access the IRC channel from inside a corporate firewall using the web interface.

git trees

Other resources


This is a list of parties who are (or should be) interested in the progress of this work:

  • Qualcomm
  • Code Aurora Forum
  • Linaro
  • Qualcomm Innovation Center
  • Sony
  • Samsung
  • LG
  • HTC
  • Lenovo/Motorola
  • Xiaomi

Table of phones, processors and download sites

Here is a table of smartphone vendors and their flagship products (as of Fall, 2014)

Please note the following xda-developers post with a great list of links to different kernel source code download sites: http://forum.xda-developers.com/showthread.php?t=1808167

Vendor Phone Processor Source tree Contact
Samsung Galaxy S3 Exynos 4412 Quad
Samsung Galaxy S5 (SM-G900T) Qualcomm MSM8974AC Snapdragon 801 SM-G900T_NA_KK_Opensource.zip from general Samsung open source site below (page 144 of their downloads for mobile phones)
Samsung Galaxy Note 4 Qualcomm Snapdragon 805 (SM-N910S) / Exynos 5433 (SM-N910C)
Samsung Galaxy A3/A5 Qualcomm Snapdragon 400
Samsung ? ? http://opensource.samsung.com/reception/receptionSub.do?method=sub&sub=T&menu_item=mobile (generic download site)
HTC One M8 Qualcomm Snapdragon 801 http://dl4.htc.com/RomCode/Source_and_Binaries/m8ul-3.4.0-g2c0a258.zip (tar download, ugh!)
HTC ? ? http://www.htcdev.com/devcenter/downloads/ (generic download site)
Lenovo/Motorola Moto G Qualcomm Snapdragon MSM8974AC 801
Lenovo/Motorola Nexus 6 Qualcomm Snapdragon 805
Motorola ? ? https://github.com/MotorolaMobilityLLC/kernel-msm (last commit Sep 2014, in branch kitkat-4.4.4-release-titan)
LG Optimus G3 (LG G3 D850) Qualcomm Snapdragon 801 file download LGD850_G3_KitKat_V10d_Kernel.zip from LG general site below
LG ? ? https://www.lg.com/global/support/opensource/opensourceList?superOsCategoryId=CAT00000001&osCategoryId= (generic download site)
Sony Xperia Z3 Qualcomm Snapdragon MSM8974AC 801 https://github.com/sonyxperiadev/kernel-copyleft (latest branch is 23.0.1.A.0.xxx)
Xiaomi Mi4 Qualcomm Snapdragon 8974AC 801
Xiaomi Mi3 Qualcomm Snapdragon 800
Xiaomi MiPad NVIDIA Tegra K1
Huawei Ascend Mate7 Hi-Silicon K3V2 (could not find source in October, 2014)
Huawei Ascend G7 Qualcomm Snapdragon (which version?) (could not find source in October, 2014) - usually they post stuff under the support, download section for each individual product, on this site: http://consumer.huawei.com/en/mobile-phones/support/downloads/ Huawei Ascend P7 Hisilicon Kirin 910T (looking for source in December, 2014)
Lenovo K900 Atom Z2580


[Figure out a metric for what remains to be done]

  • brainstorming ideas for metric to measure:
    • # of features out of tree (should be going down)
    • size of diff between latest msm tree and server it was based on? (should be going down)
    • linaro uses patch queue length (outstanding vs. already mainlined)