[alsa-devel] [PATCH v2 00/13] OMAP: McBSP: hwmod adaptation and runtime conversion
khilman at ti.com
Fri Feb 4 22:42:18 CET 2011
Kishon Vijay Abraham I <kishon at ti.com> writes:
> Modify OMAP McBSP driver to use omap hwmod framework and pm runtime APIs.
> Created on top of linux OMAP master (linux-omap-2.6 :master)
> Did digital loopback testing on OMAP4430, OMAP3430 and OMAP2430 SDP boards.
> Verified that this patch series does not break the OMAP1 build.
Can you also do some basic PM testing with audio? e.g. does audio still
work after suspend/resume what about with CPUidle when retention and/or
off are hit during idle?
> Patch series modifies audio layer and hence would appreciate the help of
> some audio guy to test this series.
> Patch series requires the following patch to be present
> * Added omap_hwmod_lookup() in the callback to omap_hwmod_for_each_by_class()
> to obtain hwmod data for sidetone. Previously this nesting of hwmod APIs was
> prevented by the use of mutex.
> * Added a revision member in hwmod database inorder to facilitate the driver
> to differentiate between different OMAP.
> * Created APIs to pass DMA params from McBSP driver to client drivers
> * Cleaned up sound soc by removing the use of macros to obtain base address
> and DMA channel number and instead use APIs exposed by the driver.
> * Removed macros defined in mcbsp driver for data that is obtained from
> hwmod database
> * McBSP is designed to use multiple hwmods for a single device when the McBSP
> device has sidetone feature.
> * To avoid funcionality break of OMAP1 McBSP in between the series
> and to keep the patches readable, implementation was done in two steps:
> - First modify mcbsp driver to use platform_get* APIs
> - then convert it to use hwmod framework for OMAP2+.
> * API's like omap_device_noidle() and omap_device_default_idle() is used to
> change the SYCONFIG register bits. This change is done to align with the
> discussion on 
> * Use '.rev' of omap_hwmod class to identify OMAP3 specific settings
> * Use *ST_* macros for idlest_idle bit
> * Incorporate other general review comments provided for hwmod adpatation
> of other OMAP driver's (eg., do pdata free after a omap_device_build())
> * Retain fclk even after pm_runtime adaptation to facilitate switching of
> functional clock from one source to another
> * Add member 'name' to omap_hwmod_addr_space struct so that the driver need
> not rely on the order to get the proper resource .
> Discussions related to the first RFC patch can be found at 
> : http://firstname.lastname@example.org/msg36743.html
> : http://email@example.com/msg39615.html
> : https://patchwork.kernel.org/patch/233211/
> Benoit Cousson (1):
> OMAP4: hwmod data: Add McBSP
> Charulatha V (3):
> OMAP2420: hwmod data: Add McBSP
> OMAP2430: hwmod data: Add McBSP
> OMAP3: hwmod data: Add McBSP
> Kishon Vijay Abraham I (9):
> OMAP: hwmod: Add member 'name' to omap_hwmod_addr_space struct
> OMAP: McBSP: Convert McBSP to platform device model
> OMAP3: hwmod: add dev_attr for McBSP sidetone
> OMAP2+: McBSP: hwmod adaptation for McBSP
> OMAP: McBSP: use omap_device APIs to modify SYSCONFIG
> OMAP: McBSP: Add pm runtime support
> OMAP: McBSP: APIs to pass DMA params from McBSP driver to client
> ASoC: McBSP: get hw params from McBSP driver
> OMAP: hwmod: Removal of macros for data that is obtained from hwmod
> arch/arm/mach-omap1/mcbsp.c | 383 +++++++++++++++----
> arch/arm/mach-omap2/mcbsp.c | 228 +++---------
> arch/arm/mach-omap2/omap_hwmod.c | 1 +
> arch/arm/mach-omap2/omap_hwmod_2420_data.c | 167 ++++++++
> arch/arm/mach-omap2/omap_hwmod_2430_data.c | 417 ++++++++++++++++++++
> arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 544 ++++++++++++++++++++++++++
> arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 321 +++++++++++++++
> arch/arm/mach-omap2/prcm-common.h | 4 +
> arch/arm/plat-omap/devices.c | 10 +-
> arch/arm/plat-omap/include/plat/mcbsp.h | 69 +---
> arch/arm/plat-omap/include/plat/omap_hwmod.h | 4 +-
> arch/arm/plat-omap/mcbsp.c | 207 +++++++---
> sound/soc/omap/omap-mcbsp.c | 126 +------
> 13 files changed, 2006 insertions(+), 475 deletions(-)
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