Merge tag 'ux500-cpufreq-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/drivers

From Linus Walleij:
These are cpufreq updates for the ux500
- Updates to the ux500 cpufreq driver
- Support for delay timers in the MTU clksrc
- Consequential updates to the cpufreq driver

* tag 'ux500-cpufreq-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
  cpufreq: db8500: set CPUFREQ_CONST_LOOPS
  clocksource: nomadik-mtu: support timer-based delay
  cpufreq: dbx500: Update file header
  cpufreq: dbx500: Minor code cleanup
  cpufreq: dbx500: Move clk_get to probe
  mfd: db8500: Update cpufreq device name
  cpufreq: Give driver used for dbx500 family a more generic name

Signed-off-by: Olof Johansson <olof@lixom.net>

4 files changed, 65 insertions, 53 deletions

diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c
index 8914c3c1c88b..5f3c8dbf360f 100644
--- a/drivers/clocksource/nomadik-mtu.c
+++ b/drivers/clocksource/nomadik-mtu.c
@@ -15,6 +15,7 @@
 #include <linux/clocksource.h>
 #include <linux/clk.h>
 #include <linux/jiffies.h>
+#include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/platform_data/clocksource-nomadik-mtu.h>
 #include <asm/mach/time.h>
@@ -64,6 +65,7 @@ static void __iomem *mtu_base;
 static bool clkevt_periodic;
 static u32 clk_prescale;
 static u32 nmdk_cycle;          /* write-once */
+static struct delay_timer mtu_delay_timer;
 
 #ifdef CONFIG_NOMADIK_MTU_SCHED_CLOCK
 /*
@@ -80,6 +82,11 @@ static u32 notrace nomadik_read_sched_clock(void)
 }
 #endif
 
+static unsigned long nmdk_timer_read_current_timer(void)
+{
+        return ~readl_relaxed(mtu_base + MTU_VAL(0));
+}
+
 /* Clockevent device: use one-shot mode */
 static int nmdk_clkevt_next(unsigned long evt, struct clock_event_device *ev)
 {
@@ -227,4 +234,8 @@ void __init nmdk_timer_init(void __iomem *base, int irq)
         setup_irq(irq, &nmdk_timer_irq);
         nmdk_clkevt.cpumask = cpumask_of(0);
         clockevents_config_and_register(&nmdk_clkevt, rate, 2, 0xffffffffU);
+
+        mtu_delay_timer.read_current_timer = &nmdk_timer_read_current_timer;
+        mtu_delay_timer.freq = rate;
+        register_current_timer_delay(&mtu_delay_timer);
 }
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index 1f254ec087c1..6700251f7e90 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -41,7 +41,7 @@ obj-$(CONFIG_X86_CPUFREQ_NFORCE2)	+= cpufreq-nforce2.o
 
 ##################################################################################
 # ARM SoC drivers
-obj-$(CONFIG_UX500_SOC_DB8500)          += db8500-cpufreq.o
+obj-$(CONFIG_UX500_SOC_DB8500)          += dbx500-cpufreq.o
 obj-$(CONFIG_ARM_S3C2416_CPUFREQ)       += s3c2416-cpufreq.o
 obj-$(CONFIG_ARM_S3C64XX_CPUFREQ)       += s3c64xx-cpufreq.o
 obj-$(CONFIG_ARM_S5PV210_CPUFREQ)       += s5pv210-cpufreq.o
diff --git a/drivers/cpufreq/db8500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c
index 4f154bc0ebe4..9a623753dee2 100644
--- a/drivers/cpufreq/db8500-cpufreq.c
+++ b/drivers/cpufreq/dbx500-cpufreq.c
@@ -1,13 +1,13 @@
 /*
  * Copyright (C) STMicroelectronics 2009
- * Copyright (C) ST-Ericsson SA 2010
+ * Copyright (C) ST-Ericsson SA 2010-2012
  *
  * License Terms: GNU General Public License v2
  * Author: Sundar Iyer <sundar.iyer@stericsson.com>
  * Author: Martin Persson <martin.persson@stericsson.com>
  * Author: Jonas Aaberg <jonas.aberg@stericsson.com>
- *
  */
+
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/cpufreq.h>
@@ -20,22 +20,23 @@
 static struct cpufreq_frequency_table *freq_table;
 static struct clk *armss_clk;
 
-static struct freq_attr *db8500_cpufreq_attr[] = {
+static struct freq_attr *dbx500_cpufreq_attr[] = {
         &cpufreq_freq_attr_scaling_available_freqs,
         NULL,
 };
 
-static int db8500_cpufreq_verify_speed(struct cpufreq_policy *policy)
+static int dbx500_cpufreq_verify_speed(struct cpufreq_policy *policy)
 {
         return cpufreq_frequency_table_verify(policy, freq_table);
 }
 
-static int db8500_cpufreq_target(struct cpufreq_policy *policy,
+static int dbx500_cpufreq_target(struct cpufreq_policy *policy,
                                 unsigned int target_freq,
                                 unsigned int relation)
 {
         struct cpufreq_freqs freqs;
         unsigned int idx;
+        int ret;
 
         /* scale the target frequency to one of the extremes supported */
         if (target_freq < policy->cpuinfo.min_freq)
@@ -44,10 +45,9 @@ static int db8500_cpufreq_target(struct cpufreq_policy *policy,
                 target_freq = policy->cpuinfo.max_freq;
 
         /* Lookup the next frequency */
-        if (cpufreq_frequency_table_target
-            (policy, freq_table, target_freq, relation, &idx)) {
+        if (cpufreq_frequency_table_target(policy, freq_table, target_freq,
+                                        relation, &idx))
                 return -EINVAL;
-        }
 
         freqs.old = policy->cur;
         freqs.new = freq_table[idx].frequency;
@@ -60,9 +60,12 @@ static int db8500_cpufreq_target(struct cpufreq_policy *policy,
                 cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
 
         /* update armss clk frequency */
-        if (clk_set_rate(armss_clk, freq_table[idx].frequency * 1000)) {
-                pr_err("db8500-cpufreq: Failed to update armss clk\n");
-                return -EINVAL;
+        ret = clk_set_rate(armss_clk, freqs.new * 1000);
+
+        if (ret) {
+                pr_err("dbx500-cpufreq: Failed to set armss_clk to %d Hz: error %d\n",
+                       freqs.new * 1000, ret);
+                return ret;
         }
 
         /* post change notification */
@@ -72,7 +75,7 @@ static int db8500_cpufreq_target(struct cpufreq_policy *policy,
         return 0;
 }
 
-static unsigned int db8500_cpufreq_getspeed(unsigned int cpu)
+static unsigned int dbx500_cpufreq_getspeed(unsigned int cpu)
 {
         int i = 0;
         unsigned long freq = clk_get_rate(armss_clk) / 1000;
@@ -84,40 +87,26 @@ static unsigned int db8500_cpufreq_getspeed(unsigned int cpu)
         }
 
         /* We could not find a corresponding frequency. */
-        pr_err("db8500-cpufreq: Failed to find cpufreq speed\n");
+        pr_err("dbx500-cpufreq: Failed to find cpufreq speed\n");
         return 0;
 }
 
-static int __cpuinit db8500_cpufreq_init(struct cpufreq_policy *policy)
+static int __cpuinit dbx500_cpufreq_init(struct cpufreq_policy *policy)
 {
-        int i = 0;
         int res;