diff mbox

[07/34] cpufreq: cris: remove calls to cpufreq_notify_transition()

Message ID d8b7b00908f0fa16feca841b1bf7fb1a49c62df1.1376619363.git.viresh.kumar@linaro.org
State New
Headers show

Commit Message

Viresh Kumar Aug. 16, 2013, 2:25 a.m. UTC
Most of the drivers do following in their ->target_index() routines:

	struct cpufreq_freqs freqs;
	freqs.old = old freq...
	freqs.new = new freq...

	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);

	/* Change rate here */

	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);

This is replicated over all cpufreq drivers today and there doesn't exists a
good enough reason why this shouldn't be moved to cpufreq core instead.

Earlier patches have added support in cpufreq core to do cpufreq notification on
frequency change, this one removes it from this driver.

Some related minor cleanups are also done along with it.

Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: linux-cris-kernel@axis.com
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/cpufreq/cris-artpec3-cpufreq.c | 8 --------
 drivers/cpufreq/cris-etraxfs-cpufreq.c | 8 --------
 2 files changed, 16 deletions(-)

Comments

Jesper Nilsson Oct. 10, 2017, 7:57 a.m. UTC | #1
On Fri, Aug 16, 2013 at 04:25:04AM +0200, Viresh Kumar wrote:
> Most of the drivers do following in their ->target_index() routines:

> 

> 	struct cpufreq_freqs freqs;

> 	freqs.old = old freq...

> 	freqs.new = new freq...

> 

> 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);

> 

> 	/* Change rate here */

> 

> 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);

> 

> This is replicated over all cpufreq drivers today and there doesn't exists a

> good enough reason why this shouldn't be moved to cpufreq core instead.

> 

> Earlier patches have added support in cpufreq core to do cpufreq notification on

> frequency change, this one removes it from this driver.

> 

> Some related minor cleanups are also done along with it.

> 


Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>


> Cc: Mikael Starvik <starvik@axis.com>

> Cc: linux-cris-kernel@axis.com

> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

> ---

>  drivers/cpufreq/cris-artpec3-cpufreq.c | 8 --------

>  drivers/cpufreq/cris-etraxfs-cpufreq.c | 8 --------

>  2 files changed, 16 deletions(-)

> 

> diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c

> index dace19d..e31e1e5 100644

> --- a/drivers/cpufreq/cris-artpec3-cpufreq.c

> +++ b/drivers/cpufreq/cris-artpec3-cpufreq.c

> @@ -29,15 +29,9 @@ static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)

>  

>  static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)

>  {

> -	struct cpufreq_freqs freqs;

>  	reg_clkgen_rw_clk_ctrl clk_ctrl;

>  	clk_ctrl = REG_RD(clkgen, regi_clkgen, rw_clk_ctrl);

>  

> -	freqs.old = cris_freq_get_cpu_frequency(policy->cpu);

> -	freqs.new = cris_freq_table[state].frequency;

> -

> -	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);

> -

>  	local_irq_disable();

>  

>  	/* Even though we may be SMP they will share the same clock

> @@ -50,8 +44,6 @@ static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)

>  

>  	local_irq_enable();

>  

> -	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);

> -

>  	return 0;

>  }

>  

> diff --git a/drivers/cpufreq/cris-etraxfs-cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c

> index 4d40d9df..9d577d0 100644

> --- a/drivers/cpufreq/cris-etraxfs-cpufreq.c

> +++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c

> @@ -29,15 +29,9 @@ static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)

>  

>  static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)

>  {

> -	struct cpufreq_freqs freqs;

>  	reg_config_rw_clk_ctrl clk_ctrl;

>  	clk_ctrl = REG_RD(config, regi_config, rw_clk_ctrl);

>  

> -	freqs.old = cris_freq_get_cpu_frequency(policy->cpu);

> -	freqs.new = cris_freq_table[state].frequency;

> -

> -	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);

> -

>  	local_irq_disable();

>  

>  	/* Even though we may be SMP they will share the same clock

> @@ -50,8 +44,6 @@ static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)

>  

>  	local_irq_enable();

>  

> -	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);

> -

>  	return 0;

>  }

>  

> -- 

> 1.7.12.rc2.18.g61b472e


/^JN - Jesper Nilsson
-- 
               Jesper Nilsson -- jesper.nilsson@axis.com
Viresh Kumar Oct. 10, 2017, 9:13 a.m. UTC | #2
On 10-10-17, 09:57, Jesper Nilsson wrote:
> On Fri, Aug 16, 2013 at 04:25:04AM +0200, Viresh Kumar wrote:

> > Most of the drivers do following in their ->target_index() routines:

> > 

> > 	struct cpufreq_freqs freqs;

> > 	freqs.old = old freq...

> > 	freqs.new = new freq...

> > 

> > 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);

> > 

> > 	/* Change rate here */

> > 

> > 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);

> > 

> > This is replicated over all cpufreq drivers today and there doesn't exists a

> > good enough reason why this shouldn't be moved to cpufreq core instead.

> > 

> > Earlier patches have added support in cpufreq core to do cpufreq notification on

> > frequency change, this one removes it from this driver.

> > 

> > Some related minor cleanups are also done along with it.

> > 

> 

> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>


Wow..

You just Acked a 4 years old patch :)

-- 
viresh
diff mbox

Patch

diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c
index dace19d..e31e1e5 100644
--- a/drivers/cpufreq/cris-artpec3-cpufreq.c
+++ b/drivers/cpufreq/cris-artpec3-cpufreq.c
@@ -29,15 +29,9 @@  static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)
 
 static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)
 {
-	struct cpufreq_freqs freqs;
 	reg_clkgen_rw_clk_ctrl clk_ctrl;
 	clk_ctrl = REG_RD(clkgen, regi_clkgen, rw_clk_ctrl);
 
-	freqs.old = cris_freq_get_cpu_frequency(policy->cpu);
-	freqs.new = cris_freq_table[state].frequency;
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	local_irq_disable();
 
 	/* Even though we may be SMP they will share the same clock
@@ -50,8 +44,6 @@  static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)
 
 	local_irq_enable();
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
 	return 0;
 }
 
diff --git a/drivers/cpufreq/cris-etraxfs-cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c
index 4d40d9df..9d577d0 100644
--- a/drivers/cpufreq/cris-etraxfs-cpufreq.c
+++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c
@@ -29,15 +29,9 @@  static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)
 
 static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)
 {
-	struct cpufreq_freqs freqs;
 	reg_config_rw_clk_ctrl clk_ctrl;
 	clk_ctrl = REG_RD(config, regi_config, rw_clk_ctrl);
 
-	freqs.old = cris_freq_get_cpu_frequency(policy->cpu);
-	freqs.new = cris_freq_table[state].frequency;
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	local_irq_disable();
 
 	/* Even though we may be SMP they will share the same clock
@@ -50,8 +44,6 @@  static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)
 
 	local_irq_enable();
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
 	return 0;
 }