Move the pr_debug at the top of the function to trace the entry even if the first test is failing. That help understanding that we entered the function but failed in it. Move the _enable last part out of the test to reduce indentation and improve readability. Signed-off-by: Benoit Cousson <b-cousson@xxxxxx> Cc: Paul Walmsley <paul@xxxxxxxxx> --- arch/arm/mach-omap2/omap_hwmod.c | 32 +++++++++++++++++--------------- 1 files changed, 17 insertions(+), 15 deletions(-) diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 64e9830..e530bcb 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -1242,6 +1242,8 @@ static int _enable(struct omap_hwmod *oh) { int r; + pr_debug("omap_hwmod: %s: enabling\n", oh->name); + if (oh->_state != _HWMOD_STATE_INITIALIZED && oh->_state != _HWMOD_STATE_IDLE && oh->_state != _HWMOD_STATE_DISABLED) { @@ -1250,8 +1252,6 @@ static int _enable(struct omap_hwmod *oh) return -EINVAL; } - pr_debug("omap_hwmod: %s: enabling\n", oh->name); - /* Mux pins for device runtime if populated */ if (oh->mux && (!oh->mux->enabled || ((oh->_state == _HWMOD_STATE_IDLE) && @@ -1271,19 +1271,21 @@ static int _enable(struct omap_hwmod *oh) _deassert_hardreset(oh, oh->rst_lines[0].name); r = _wait_target_ready(oh); - if (!r) { - oh->_state = _HWMOD_STATE_ENABLED; - - /* Access the sysconfig only if the target is ready */ - if (oh->class->sysc) { - if (!(oh->_int_flags & _HWMOD_SYSCONFIG_LOADED)) - _update_sysc_cache(oh); - _enable_sysc(oh); - } - } else { - _disable_clocks(oh); + if (r) { pr_debug("omap_hwmod: %s: _wait_target_ready: %d\n", oh->name, r); + _disable_clocks(oh); + + return r; + } + + oh->_state = _HWMOD_STATE_ENABLED; + + /* Access the sysconfig only if the target is ready */ + if (oh->class->sysc) { + if (!(oh->_int_flags & _HWMOD_SYSCONFIG_LOADED)) + _update_sysc_cache(oh); + _enable_sysc(oh); } return r; @@ -1299,14 +1301,14 @@ static int _enable(struct omap_hwmod *oh) */ static int _idle(struct omap_hwmod *oh) { + pr_debug("omap_hwmod: %s: idling\n", oh->name); + if (oh->_state != _HWMOD_STATE_ENABLED) { WARN(1, "omap_hwmod: %s: idle state can only be entered from " "enabled state\n", oh->name); return -EINVAL; } - pr_debug("omap_hwmod: %s: idling\n", oh->name); - if (oh->class->sysc) _idle_sysc(oh); _del_initiator_dep(oh, mpu_oh); -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html