Re: [PATCH 2/2] arm: omap2+: PM: change trace_power_domain_target event format.

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On 13/10/2015 01:33, Tony Lindgren wrote:
* Marc Titinger <mtitinger@xxxxxxxxxxxx> [150925 08:02]:


On 25/09/2015 16:10, Steven Rostedt wrote:
On Fri, 25 Sep 2015 15:22:25 +0200
Marc Titinger <mtitinger@xxxxxxxxxxxx> wrote:

From: Marc Titinger <mtitinger@xxxxxxxxxxxx>

power_domain_target arg3 is now a string (event name) with generic power
domains. In the case of Omap, it is a hint to the prev/next switch op.
Incidentally this trace is now conditioned by CONFIG_PM_ADVANCED_DEBUG.
I'm curious to why the addition of this config option?

I meant to be consistent with Juno/generic-power-domains, so that this trace
always (or never) requires this switch.
I think I will remove this condition for both actually.

Compiled for Omap2+ but not tested.

Signed-off-by: Marc Titinger <mtitinger@xxxxxxxxxxxx>
---
  arch/arm/mach-omap2/powerdomain.c | 32 ++++++++++++++++++++------------
  1 file changed, 20 insertions(+), 12 deletions(-)

diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index 78af6d8..cd77696 100644
--- a/arch/arm/mach-omap2/powerdomain.c
+++ b/arch/arm/mach-omap2/powerdomain.c
@@ -160,7 +160,7 @@ static void _update_logic_membank_counters(struct powerdomain *pwrdm)
  static int _pwrdm_state_switch(struct powerdomain *pwrdm, int flag)
  {
-	int prev, next, state, trace_state = 0;
+	int prev, state;
  	if (pwrdm == NULL)
  		return -EINVAL;
@@ -177,18 +177,25 @@ static int _pwrdm_state_switch(struct powerdomain *pwrdm, int flag)
  			pwrdm->state_counter[prev]++;
  		if (prev == PWRDM_POWER_RET)
  			_update_logic_membank_counters(pwrdm);
-		/*
-		 * If the power domain did not hit the desired state,
-		 * generate a trace event with both the desired and hit states
-		 */
-		next = pwrdm_read_next_pwrst(pwrdm);
-		if (next != prev) {
-			trace_state = (PWRDM_TRACE_STATES_FLAG |
+
+#ifdef CONFIG_PM_ADVANCED_DEBUG
You do realize that you can add this to the block:


	if (trace_power_domain_target_enabled()) {
Nope I didn't, but now I do ;) thanks.

Probably best to keep this with your series, it should not cause merge conflicts,
so:

Acked-by: Tony Lindgren <tony@xxxxxxxxxxx>


Thanks for the ack. Indeed, I rebased it on current but figured that it's not that usefull until 'multiple states' are merged in.

M.

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