linux-kernel - [PATCH 0/5 v12] mfd: omap: usb: Runtime PM support for EHCI and OHCI drivers

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Date:	Thu, 29 Sep 2011 19:54:02 +0530
From:	Keshava Munegowda <keshava_mgowda@...com>
To:	<linux-usb@...r.kernel.org>, <linux-omap@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <balbi@...com>, <khilman@...com>,
	<b-cousson@...com>, <paul@...an.com>
CC:	Keshava Munegowda <keshava_mgowda@...com>, <gadiyar@...com>,
	<sameo@...ux.intel.com>, <parthab@...ia.ti.com>,
	<tony@...mide.com>, <johnstul@...ibm.com>, <vishwanath.bs@...com>,
	Keshava Munegowda <Keshava_mgowda@...com>
Subject: [PATCH 0/5 v12] mfd: omap: usb: Runtime PM support for EHCI and OHCI drivers

From: Keshava Munegowda <Keshava_mgowda@...com>

The Hwmod structures and Runtime PM features are implemented
For EHCI and OHCI drivers of OMAP3 and OMAP4.
The global suspend/resume of EHCI and OHCI
is validated on OMAP3430 sdp board with these patches.

TODO:
  - Adding mux-information to Hwmods.
  - Aggressive Clock Management around USB bus suspend/resume.
  - Remote Wakeup support implementation using IO-ring Wakeup
    on EHCI/OHCI pads via PRCM IRQ chain handler.


In version 12:
  - The ehci, ohci and usb_host_hs hwmods combined as a single hwmod
    usb_host_hs.
  - for omap3
	the usbhost_ick and and usbtll_ick clocks are changed as interface
        clocks. The usbtll_fck, usbhost_48m_fck clocks are changed as main
        clocks and the 120mhz functional clock is changed to optional clock 
  - the usbhs mfd driver enable/disable this optional clock in 
    runtime_resume and runtime_suspend callbacks of pm_runtime_get_sync
    and pm_runtime_put_sync APIs.

Benoit Cousson (1):
  arm: omap: usb: ehci and ohci hwmod structures for omap4

Keshava Munegowda (4):
  arm: omap: usb: ehci and ohci hwmod structures for omap3
  arm: omap: usb: register hwmods of usbhs
  arm: omap: usb: device name change for the clk names of usbhs
  mfd: omap: usb: Runtime PM support

 arch/arm/mach-omap2/clock3xxx_data.c       |   26 +-
 arch/arm/mach-omap2/clock44xx_data.c       |   10 +-
 arch/arm/mach-omap2/omap_hwmod_3xxx_data.c |  195 ++++++++
 arch/arm/mach-omap2/omap_hwmod_44xx_data.c |  171 +++++++-
 arch/arm/mach-omap2/usb-host.c             |  100 ++---
 arch/arm/plat-omap/include/plat/usb.h      |    3 -
 drivers/mfd/omap-usb-host.c                |  748 +++++++++++-----------------
 drivers/usb/host/ehci-omap.c               |   17 +-
 drivers/usb/host/ohci-omap3.c              |   18 +-
 9 files changed, 727 insertions(+), 561 deletions(-)

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