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Date: Sat, 29 Mar 2014 01:31:36 +0100 From: Sebastian Reichel <sre@...nel.org> To: Sebastian Reichel <sre@...g0.de>, Linus Walleij <linus.walleij@...aro.org>, Shubhrajyoti Datta <omaplinuxkernel@...il.com>, Carlos Chinea <cch.devel@...il.com> Cc: Tony Lindgren <tony@...mide.com>, Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>, Mark Rutland <mark.rutland@....com>, Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org, Pali Rohár <pali.rohar@...il.com>, Ивайло Димитров <freemangordon@....bg>, Joni Lapilainen <joni.lapilainen@...il.com>, Aaro Koskinen <aaro.koskinen@....fi>, Sebastian Reichel <sre@...nel.org> Subject: [PATCHv3 00/14] OMAP SSI driver / N900 modem support Hi, This is the seventh round of the OMAP SSI driver patches. The plan is to get it merged into 3.16. Changes since PATCHv2 [0]: * Readded generic HSI client binding and Nokia N900 modem support. They are also intended to be added in 3.16 and useful for testing the SSI driver, so I think it makes sense to keep them in one patchset. * Updated the DT binding for the modem. A HSI port has only a single child now, which describes the connected remote device. This better fits the DT model of strictly describing hardware, since a HSI port is a point2point interface. The driver can instantiate other drivers as needed. * Moved channel description from the drivers into DT. * I added Signed-off-by: Carlos Chinea <carlos.chinea@...ia.com> to the omap-ssi and ssi-protocol driver addtions, since the initial driver was from him. * I updated my email address. * Added DTS changes to ease reviewing/testing the patchset. I did *not* implement proper PM for the Nokia N900 modem in kernel space, since that would break all existing userlands (ofono, fso-gsmd and Nokia's closed source binaries). I think this should be implemented later. Please send feedback (e.g. Tested-By or Reviewed-By :)), so that I can send a pull request for 3.16. You can either apply this patchset or use the n900-modem-support branch available on [1]. For testing the patchset you should build the kernel with all config entries in the HSI subsystem activated and boot using the updated device tree information, since platform data based booting is not supported. Testing the patchset with ofono works like this: # provide cmt device for ofono ln -sf /sys/bus/hsi/n900-modem /dev/cmt # start ofono ofono --nodetach --debug # enable the modem mdbus2 -s org.ofono /n900_0 org.ofono.Modem.SetProperty Powered true # enable modem's RF parts mdbus2 -s org.ofono /n900_0 org.ofono.Modem.SetProperty Online true # scan for available networks (takes some time) mdbus2 -s org.ofono /n900_0 org.ofono.NetworkRegistration.Scan TODO (post-merge): * Central Message Queue I did not yet implement a central message queue in the HSI framework. I will do this after Nokia N900 modem is working in the mainline kernel. * Remove the hwmod DT hack This depends on some future work merging hwmod data into DT. * Implement proper context loss detection * Implement N900 modem PM [0] https://lkml.org/lkml/2014/3/9/139 [1] git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi.git -- Sebastian Sebastian Reichel (14): Documentation: HSI: Add some general description for the HSI subsystem MAINTAINERS: update HSI entry HSI: hsi-char: fix driver for multiport scenarios HSI: method to unregister clients from an hsi port HSI: Add channel resource support to HSI clients HSI: export method to (un)register clients HSI: Add common DT binding for HSI client devices HSI: Introduce OMAP SSI driver Documentation: DT: omap-ssi binding documentation HSI: Introduce driver for SSI Protocol HSI: Introduce Nokia N900 modem driver ARM: dts: omap3 clocks: simplify ssi aliases DTS: ARM: OMAP3-N900: Add SSI support DTS: ARM: OMAP3-N900: Add modem support .../devicetree/bindings/hsi/client-devices.txt | 44 + .../devicetree/bindings/hsi/nokia-modem.txt | 58 + Documentation/devicetree/bindings/hsi/omap-ssi.txt | 85 ++ Documentation/hsi.txt | 75 ++ MAINTAINERS | 4 +- arch/arm/boot/dts/omap3-n900.dts | 65 + arch/arm/boot/dts/omap3.dtsi | 55 + arch/arm/boot/dts/omap3430es1-clocks.dtsi | 10 +- arch/arm/boot/dts/omap34xx.dtsi | 11 + .../boot/dts/omap36xx-omap3430es2plus-clocks.dtsi | 10 +- arch/arm/boot/dts/omap36xx.dtsi | 11 + drivers/hsi/Kconfig | 1 + drivers/hsi/Makefile | 1 + drivers/hsi/clients/Kconfig | 17 + drivers/hsi/clients/Makefile | 4 +- drivers/hsi/clients/hsi_char.c | 14 +- drivers/hsi/clients/nokia-modem.c | 272 ++++ drivers/hsi/clients/ssi_protocol.c | 1188 +++++++++++++++++ drivers/hsi/controllers/Kconfig | 19 + drivers/hsi/controllers/Makefile | 6 + drivers/hsi/controllers/omap_ssi.c | 621 +++++++++ drivers/hsi/controllers/omap_ssi.h | 166 +++ drivers/hsi/controllers/omap_ssi_port.c | 1401 ++++++++++++++++++++ drivers/hsi/controllers/omap_ssi_regs.h | 171 +++ drivers/hsi/hsi.c | 267 +++- include/linux/hsi/hsi.h | 30 +- include/linux/hsi/ssi_protocol.h | 42 + 27 files changed, 4619 insertions(+), 29 deletions(-) create mode 100644 Documentation/devicetree/bindings/hsi/client-devices.txt create mode 100644 Documentation/devicetree/bindings/hsi/nokia-modem.txt create mode 100644 Documentation/devicetree/bindings/hsi/omap-ssi.txt create mode 100644 Documentation/hsi.txt create mode 100644 drivers/hsi/clients/nokia-modem.c create mode 100644 drivers/hsi/clients/ssi_protocol.c create mode 100644 drivers/hsi/controllers/Kconfig create mode 100644 drivers/hsi/controllers/Makefile create mode 100644 drivers/hsi/controllers/omap_ssi.c create mode 100644 drivers/hsi/controllers/omap_ssi.h create mode 100644 drivers/hsi/controllers/omap_ssi_port.c create mode 100644 drivers/hsi/controllers/omap_ssi_regs.h create mode 100644 include/linux/hsi/ssi_protocol.h -- 1.9.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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