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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-26 17:10:20 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-26 17:10:20 -0700 |
commit | 62c9072bee2272232d0ed92dc8148c48c1f10f8e (patch) | |
tree | 5c64b479af4b97cbc21db3d0a2a0afdae60d9e8f /arch/arm/mach-omap2/omap_hwmod.c | |
parent | 4b30b6f23a1a59cda29cc12566eb4f32a22a8069 (diff) | |
parent | c2fda22207e2977d0b80eac58a9004b6f8beed6d (diff) | |
download | talos-obmc-linux-62c9072bee2272232d0ed92dc8148c48c1f10f8e.tar.gz talos-obmc-linux-62c9072bee2272232d0ed92dc8148c48c1f10f8e.zip |
Merge branch 'next/fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc
* 'next/fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: (24 commits)
ASoC: omap: McBSP: fix build breakage on OMAP1
OMAP: hwmod: fix the i2c-reset timeout during bootup
I2C: OMAP2+: add correct functionality flags to all omap2plus i2c dev_attr
I2C: OMAP2+: Tag all OMAP2+ hwmod defintions with I2C IP revision
I2C: OMAP1/OMAP2+: create omap I2C functionality flags for each cpu_... test
I2C: OMAP2+: Introduce I2C IP versioning constants
I2C: OMAP2+: increase omap_i2c_dev_attr flags from u8 to u32
I2C: OMAP2+: Set hwmod flags to only allow 16-bit accesses to i2c
OMAP4: hwmod data: Change DSS main_clk scheme
OMAP4: powerdomain data: Remove unsupported MPU powerdomain state
OMAP4: clock data: Keep GPMC clocks always enabled and hardware managed
OMAP4: powerdomain data: Fix core mem states and missing cefuse flag
OMAP2+: PM: Initialise sleep_switch to a non-valid value
OMAP4: hwmod data: Modify DSS opt clocks
OMAP4: iommu: fix clock name
omap: iovmm: s/sg_dma_len(sg)/sg->length/
omap: iommu: fix pte programming
arm: omap3: cm-t35: fix slow path warning
arm: omap3: cm-t35: minor comments fixes
omap: ZOOM: QUART: Request reset GPIO
...
Diffstat (limited to 'arch/arm/mach-omap2/omap_hwmod.c')
-rw-r--r-- | arch/arm/mach-omap2/omap_hwmod.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 7d242c9e2a2c..02b6016393a8 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -1656,6 +1656,33 @@ void omap_hwmod_write(u32 v, struct omap_hwmod *oh, u16 reg_offs) } /** + * omap_hwmod_softreset - reset a module via SYSCONFIG.SOFTRESET bit + * @oh: struct omap_hwmod * + * + * This is a public function exposed to drivers. Some drivers may need to do + * some settings before and after resetting the device. Those drivers after + * doing the necessary settings could use this function to start a reset by + * setting the SYSCONFIG.SOFTRESET bit. + */ +int omap_hwmod_softreset(struct omap_hwmod *oh) +{ + u32 v; + int ret; + + if (!oh || !(oh->_sysc_cache)) + return -EINVAL; + + v = oh->_sysc_cache; + ret = _set_softreset(oh, &v); + if (ret) + goto error; + _write_sysconfig(v, oh); + +error: + return ret; +} + +/** * omap_hwmod_set_slave_idlemode - set the hwmod's OCP slave idlemode * @oh: struct omap_hwmod * * @idlemode: SIDLEMODE field bits (shifted to bit 0) |