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| author |   Paul Walmsley <paul@pwsan.com> | 2012-04-13 05:08:43 -0600 |
|---|---|---|
| committer | Paul Walmsley <paul@pwsan.com> | 2012-04-13 05:28:33 -0600 |
| commit | 3c55c1baffa5f719eb2ae9729088bc867f972f53 (patch) | |
| tree | 7e63ac17d5a5705fdab0e1d1f2554bf60a742beb /arch/arm/mach-omap2 | |
| parent | ARM: OMAP2+: hwmod: add softreset delay field and OMAP4 data (diff) | |
| download | linux-dev-3c55c1baffa5f719eb2ae9729088bc867f972f53.tar.xz linux-dev-3c55c1baffa5f719eb2ae9729088bc867f972f53.zip | |
ARM: OMAP2+: hwmod: Revert "ARM: OMAP2+: hwmod: Make omap_hwmod_softreset wait for reset status"
This reverts commit f9a2f9c3fa76eec55928e8e06f3094c8f01df7cb. This
commit caused a regression in the I2C hwmod reset on OMAP2/3/4,
logging messages similar to these during boot:
[ 0.200378] omap_hwmod: i2c1: softreset failed (waited 10000 usec)
[ 0.222076] omap_hwmod: i2c2: softreset failed (waited 10000 usec)
While the original patch was intended to fix some reset-related timing
issues, it's believed that these problems were actually fixed by
commit 2800852a079504f35f88e44faf5c9c96318c0cca ("ARM: OMAP2+: hwmod:
Restore sysc after a reset"):
http://marc.info/?l=linux-arm-kernel&m=133410322617245&w=2
Cc: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Diffstat (limited to 'arch/arm/mach-omap2')
| -rw-r--r-- | arch/arm/mach-omap2/omap_hwmod.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 45f1d9c44e94..7144ae651d3d 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -1906,10 +1906,20 @@ void omap_hwmod_write(u32 v, struct omap_hwmod *oh, u16 reg_offs) */ int omap_hwmod_softreset(struct omap_hwmod *oh) { - if (!oh) + u32 v; + int ret; + + if (!oh || !(oh->_sysc_cache)) return -EINVAL; - return _ocp_softreset(oh); + v = oh->_sysc_cache; + ret = _set_softreset(oh, &v); + if (ret) + goto error; + _write_sysconfig(v, oh); + +error: + return ret; } /** |