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Message-Id: <84ed2fae0095e526e0665f5859d39d3ff22c7613.1379063063.git.viresh.kumar@linaro.org>
Date: Fri, 13 Sep 2013 18:32:01 +0530
From: Viresh Kumar <viresh.kumar@...aro.org>
To: rjw@...k.pl
Cc: linaro-kernel@...ts.linaro.org, patches@...aro.org,
cpufreq@...r.kernel.org, linux-pm@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
Viresh Kumar <viresh.kumar@...aro.org>,
Russell King <linux@....linux.org.uk>
Subject: [PATCH 175/228] cpufreq: sa11x0: Convert to light weight ->target_index() routine
This patch converts existing .target() to newly defined light weight
.target_index() routine for this driver.
CPUFreq core will call cpufreq_frequency_table_target() before calling this
routine and will pass index to it.
Some existing routines are no more required and so are removed now.
Cc: Russell King <linux@....linux.org.uk>
Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
arch/arm/mach-sa1100/generic.c | 20 --------------------
arch/arm/mach-sa1100/generic.h | 2 --
drivers/cpufreq/sa1100-cpufreq.c | 24 ++++--------------------
drivers/cpufreq/sa1110-cpufreq.c | 26 ++++----------------------
4 files changed, 8 insertions(+), 64 deletions(-)
diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c
index cb4b2ca..d4ea142 100644
--- a/arch/arm/mach-sa1100/generic.c
+++ b/arch/arm/mach-sa1100/generic.c
@@ -62,26 +62,6 @@ struct cpufreq_frequency_table sa11x0_freq_table[NR_FREQS+1] = {
{ .frequency = CPUFREQ_TABLE_END, },
};
-/* rounds up(!) */
-unsigned int sa11x0_freq_to_ppcr(unsigned int khz)
-{
- int i;
-
- for (i = 0; i < NR_FREQS; i++)
- if (sa11x0_freq_table[i].frequency >= khz)
- break;
-
- return i;
-}
-
-unsigned int sa11x0_ppcr_to_freq(unsigned int idx)
-{
- unsigned int freq = 0;
- if (idx < NR_FREQS)
- freq = sa11x0_freq_table[idx].frequency;
- return freq;
-}
-
unsigned int sa11x0_getspeed(unsigned int cpu)
{
if (cpu)
diff --git a/arch/arm/mach-sa1100/generic.h b/arch/arm/mach-sa1100/generic.h
index 39d56a67..84505d5 100644
--- a/arch/arm/mach-sa1100/generic.h
+++ b/arch/arm/mach-sa1100/generic.h
@@ -22,9 +22,7 @@ extern void sa1110_mb_disable(void);
struct cpufreq_policy;
extern struct cpufreq_frequency_table sa11x0_freq_table[];
-extern unsigned int sa11x0_freq_to_ppcr(unsigned int khz);
extern unsigned int sa11x0_getspeed(unsigned int cpu);
-extern unsigned int sa11x0_ppcr_to_freq(unsigned int idx);
struct flash_platform_data;
struct resource;
diff --git a/drivers/cpufreq/sa1100-cpufreq.c b/drivers/cpufreq/sa1100-cpufreq.c
index b282cea..b0da1fe 100644
--- a/drivers/cpufreq/sa1100-cpufreq.c
+++ b/drivers/cpufreq/sa1100-cpufreq.c
@@ -177,36 +177,20 @@ static void sa1100_update_dram_timings(int current_speed, int new_speed)
}
}
-static int sa1100_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int sa1100_target(struct cpufreq_policy *policy, unsigned int ppcr)
{
unsigned int cur = sa11x0_getspeed(0);
- unsigned int new_ppcr;
struct cpufreq_freqs freqs;
- new_ppcr = sa11x0_freq_to_ppcr(target_freq);
- switch (relation) {
- case CPUFREQ_RELATION_L:
- if (sa11x0_ppcr_to_freq(new_ppcr) > policy->max)
- new_ppcr--;
- break;
- case CPUFREQ_RELATION_H:
- if ((sa11x0_ppcr_to_freq(new_ppcr) > target_freq) &&
- (sa11x0_ppcr_to_freq(new_ppcr - 1) >= policy->min))
- new_ppcr--;
- break;
- }
-
freqs.old = cur;
- freqs.new = sa11x0_ppcr_to_freq(new_ppcr);
+ freqs.new = sa11x0_freq_table[ppcr].frequency;
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
if (freqs.new > cur)
sa1100_update_dram_timings(cur, freqs.new);
- PPCR = new_ppcr;
+ PPCR = ppcr;
if (freqs.new < cur)
sa1100_update_dram_timings(cur, freqs.new);
@@ -224,7 +208,7 @@ static int __init sa1100_cpu_init(struct cpufreq_policy *policy)
static struct cpufreq_driver sa1100_driver __refdata = {
.flags = CPUFREQ_STICKY,
.verify = cpufreq_generic_frequency_table_verify,
- .target = sa1100_target,
+ .target_index = sa1100_target,
.get = sa11x0_getspeed,
.init = sa1100_cpu_init,
.name = "sa1100",
diff --git a/drivers/cpufreq/sa1110-cpufreq.c b/drivers/cpufreq/sa1110-cpufreq.c
index bca04c0..55b1818c 100644
--- a/drivers/cpufreq/sa1110-cpufreq.c
+++ b/drivers/cpufreq/sa1110-cpufreq.c
@@ -229,34 +229,16 @@ sdram_update_refresh(u_int cpu_khz, struct sdram_params *sdram)
/*
* Ok, set the CPU frequency.
*/
-static int sa1110_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
+static int sa1110_target(struct cpufreq_policy *policy, unsigned int ppcr)
{
struct sdram_params *sdram = &sdram_params;
struct cpufreq_freqs freqs;
struct sdram_info sd;
unsigned long flags;
- unsigned int ppcr, unused;
-
- switch (relation) {
- case CPUFREQ_RELATION_L:
- ppcr = sa11x0_freq_to_ppcr(target_freq);
- if (sa11x0_ppcr_to_freq(ppcr) > policy->max)
- ppcr--;
- break;
- case CPUFREQ_RELATION_H:
- ppcr = sa11x0_freq_to_ppcr(target_freq);
- if (ppcr && (sa11x0_ppcr_to_freq(ppcr) > target_freq) &&
- (sa11x0_ppcr_to_freq(ppcr-1) >= policy->min))
- ppcr--;
- break;
- default:
- return -EINVAL;
- }
+ unsigned int unused;
freqs.old = sa11x0_getspeed(0);
- freqs.new = sa11x0_ppcr_to_freq(ppcr);
+ freqs.new = sa11x0_freq_table[ppcr].frequency;
sdram_calculate_timing(&sd, freqs.new, sdram);
@@ -340,7 +322,7 @@ static int __init sa1110_cpu_init(struct cpufreq_policy *policy)
static struct cpufreq_driver sa1110_driver __refdata = {
.flags = CPUFREQ_STICKY,
.verify = cpufreq_generic_frequency_table_verify,
- .target = sa1110_target,
+ .target_index = sa1110_target,
.get = sa11x0_getspeed,
.init = sa1110_cpu_init,
.name = "sa1110",
--
1.7.12.rc2.18.g61b472e
--
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