This patch series makes OMAP2PLUS musb module implemented in HWMOD FW way. It also implements musb driver to use the runtime pm apis.
As per the OMAP usbotg specification[1] musb sysconfig register has to be set to force idle and force standby when not used and set smart idle/standby or no idle/standby during operation. otherwise core-off will be prevented by musb. [1]: http://focus.ti.com/pdfs/wtbu/SWPU223D_Final_EPDF_06_07_2010.pdf This patch series is based on V2.6.38-rc4 + [1] +[2] [1] https://patchwork.kernel.org/patch/513461 [2] http://www.spinics.net/lists/linux-usb/msg40575.html with this patch series tested musb functionality like testusb, masstorage OMAP4430SDP, OMAP3430SDP, and OMAP3630 zoom3. Tested global suspend resume for offmode and retention on OMAP3630Zoom3. Idle path retention and offmode validation is not done with these patch series. Version History: --------------- Version V6 Calling runtime_pm_suspend in the pm_ops function was not effective. So using the bus runtime methods directly in the pm_ops suspend/resume functions. Version V5: Fixed review comments from Felipe. Version V4: Rebased the changes based on the re-orgnized patches submitted by Felipe. Fixed review comments received for V3. Dropped the idlepath power management patch with this series. Some of the links for V3 review comments: https://patchwork.kernel.org/patch/199482/ http://www.mail-archive.com/linux-omap@vger.kernel.org/msg35488.html http://www.mail-archive.com/linux-omap@vger.kernel.org/msg33201.html http://www.mail-archive.com/linux-omap@vger.kernel.org/msg35387.html Version V3 Added the patch for adding the hwmod database for OMAP2430. Re-arranged the patches in such a way that first migrate the musb driver to use the runtime PM apis and then added a patch to support offmode in idle path. Calling the runtime PM apis before disbaling the interupts in the idle path. Added the #ifdef CONFIG_PM_RUNTIME check in the musb core driver for calling the runtime PM APIs as non-omap platforms may not have the runtime pm enabled and clk_enable/disable should be called for them. Optimized the context save restore of musb registers only if the next state is going to offmode and previous state was offmode. Some of the links for V2 review comments ---------------------------------------- http://www.mail-archive.com/linux-omap@vger.kernel.org/msg34068.html http://www.mail-archive.com/linux-omap@vger.kernel.org/msg32024.html http://www.spinics.net/lists/linux-usb/msg35562.html http://www.spinics.net/lists/linux-usb/msg35720.html Vesrion v2: Fixed review comments. Removed the omap_hwmod.h inclusion from musb.h file which was breaking the non-omap platform build. Using the runtime pm apis in the idle path(interrupts disabled). Added the omap4 hwmod data base. Version v1: initial version of the patch series. Some of the links for v1 ------------------------ http://www.spinics.net/lists/linux-usb/msg34570.html http://www.spinics.net/lists/linux-omap/msg34568.html http://www.spinics.net/lists/linux-usb/msg34544.html http://www.spinics.net/lists/linux-usb/msg34540.html http://www.spinics.net/lists/linux-usb/msg34589.html http://www.spinics.net/lists/linux-usb/msg34554.html http://www.mail-archive.com/linux-omap@vger.kernel.org/msg32973.html Signed-off-by: Hema HK <hem...@ti.com> Cc: Felipe Balbi <ba...@ti.com> Cc: Tony Lindgren <t...@atomide.com> Cc: Kevin Hilman <khil...@deeprootsystems.com> Cc: Cousson, Benoit <b-cous...@ti.com> Cc: Paul Walmsley <p...@pwsan.com> --- Cousson, Benoit (1): OMAP4430: hwmod data: Adding USBOTG Hema HK (4): OMAP2430: hwmod data: Add USBOTG OMAP3xxx: hwmod data: Add USBOTG OMAP2+: musb: HWMOD adaptation for musb. usb: musb: Using runtime pm APIs for musb. arch/arm/mach-omap2/omap_hwmod_2430_data.c | 98 +++++++++++++++++++++++++++ arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 101 ++++++++++++++++++++++++++++ arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 93 +++++++++++++++++++++++++ arch/arm/mach-omap2/usb-musb.c | 76 +++++++++++++++------ drivers/usb/musb/musb_core.h | 2 +- drivers/usb/musb/omap2430.c | 79 ++++++---------------- 6 files changed, 369 insertions(+), 80 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
