1 files changed, 51 insertions, 47 deletions

diff --git a/arch/arm/mach-pxa/cpu-pxa.c b/arch/arm/mach-pxa/cpu-pxa.c
index 4b21479332ae..0f5660200bf9 100644
--- a/arch/arm/mach-pxa/cpu-pxa.c
+++ b/arch/arm/mach-pxa/cpu-pxa.c
@@ -57,29 +57,29 @@ typedef struct {
 } pxa_freqs_t;
 
 /* Define the refresh period in mSec for the SDRAM and the number of rows */
-#define SDRAM_TREF          64      /* standard 64ms SDRAM */
-#define SDRAM_ROWS          4096    /* 64MB=8192 32MB=4096 */
-#define MDREFR_DRI(x)       (((x) * SDRAM_TREF) / (SDRAM_ROWS * 32))
+#define SDRAM_TREF      64      /* standard 64ms SDRAM */
+#define SDRAM_ROWS      4096    /* 64MB=8192 32MB=4096 */
+#define MDREFR_DRI(x)   (((x) * SDRAM_TREF) / (SDRAM_ROWS * 32))
 
-#define CCLKCFG_TURBO       0x1
-#define CCLKCFG_FCS         0x2
-#define PXA25x_MIN_FREQ     99500
-#define PXA25x_MAX_FREQ     398100
-#define MDREFR_DB2_MASK     (MDREFR_K2DB2 | MDREFR_K1DB2)
-#define MDREFR_DRI_MASK     0xFFF
+#define CCLKCFG_TURBO           0x1
+#define CCLKCFG_FCS             0x2
+#define PXA25x_MIN_FREQ         99500
+#define PXA25x_MAX_FREQ         398100
+#define MDREFR_DB2_MASK         (MDREFR_K2DB2 | MDREFR_K1DB2)
+#define MDREFR_DRI_MASK         0xFFF
 
 
 /* Use the run mode frequencies for the CPUFREQ_POLICY_PERFORMANCE policy */
 static pxa_freqs_t pxa255_run_freqs[] =
 {
-    /* CPU   MEMBUS  CCCR  DIV2*/
-    { 99500,  99500, 0x121, 1}, /* run= 99, turbo= 99, PXbus=50,  SDRAM=50 */
-    {132700, 132700, 0x123, 1}, /* run=133, turbo=133, PXbus=66,  SDRAM=66 */
-    {199100,  99500, 0x141, 0}, /* run=199, turbo=199, PXbus=99,  SDRAM=99 */
-    {265400, 132700, 0x143, 1}, /* run=265, turbo=265, PXbus=133, SDRAM=66 */
-    {331800, 165900, 0x145, 1}, /* run=331, turbo=331, PXbus=166, SDRAM=83 */
-    {398100,  99500, 0x161, 0}, /* run=398, turbo=398, PXbus=196, SDRAM=99 */
-    {0,}
+        /* CPU   MEMBUS  CCCR  DIV2                run  turbo PXbus SDRAM */
+        { 99500,  99500, 0x121, 1},             /*  99,   99,   50,   50  */
+        {132700, 132700, 0x123, 1},             /* 133,  133,   66,   66  */
+        {199100,  99500, 0x141, 0},             /* 199,  199,   99,   99  */
+        {265400, 132700, 0x143, 1},             /* 265,  265,  133,   66  */
+        {331800, 165900, 0x145, 1},             /* 331,  331,  166,   83  */
+        {398100,  99500, 0x161, 0},             /* 398,  398,  196,   99  */
+        {0,}
 };
 #define NUM_RUN_FREQS ARRAY_SIZE(pxa255_run_freqs)
 
@@ -88,17 +88,18 @@ static struct cpufreq_frequency_table pxa255_run_freq_table[NUM_RUN_FREQS+1];
 /* Use the turbo mode frequencies for the CPUFREQ_POLICY_POWERSAVE policy */
 static pxa_freqs_t pxa255_turbo_freqs[] =
 {
-    /* CPU   MEMBUS  CCCR  DIV2*/
-    { 99500, 99500,  0x121, 1}, /* run=99,  turbo= 99, PXbus=50, SDRAM=50 */
-    {199100, 99500,  0x221, 0}, /* run=99,  turbo=199, PXbus=50, SDRAM=99 */
-    {298500, 99500,  0x321, 0}, /* run=99,  turbo=287, PXbus=50, SDRAM=99 */
-    {298600, 99500,  0x1c1, 0}, /* run=199, turbo=287, PXbus=99, SDRAM=99 */
-    {398100, 99500,  0x241, 0}, /* run=199, turbo=398, PXbus=99, SDRAM=99 */
-    {0,}
+        /* CPU   MEMBUS  CCCR  DIV2                run  turbo PXbus SDRAM */
+        { 99500, 99500,  0x121, 1},             /*  99,   99,   50,   50  */
+        {199100, 99500,  0x221, 0},             /*  99,  199,   50,   99  */
+        {298500, 99500,  0x321, 0},             /*  99,  287,   50,   99  */
+        {298600, 99500,  0x1c1, 0},             /* 199,  287,   99,   99  */
+        {398100, 99500,  0x241, 0},             /* 199,  398,   99,   99  */
+        {0,}
 };
 #define NUM_TURBO_FREQS ARRAY_SIZE(pxa255_turbo_freqs)
 
-static struct cpufreq_frequency_table pxa255_turbo_freq_table[NUM_TURBO_FREQS+1];
+static struct cpufreq_frequency_table
+        pxa255_turbo_freq_table[NUM_TURBO_FREQS+1];
 
 extern unsigned get_clk_frequency_khz(int info);
 
@@ -122,14 +123,14 @@ static int pxa_verify_policy(struct cpufreq_policy *policy)
 
         if (freq_debug)
                 pr_debug("Verified CPU policy: %dKhz min to %dKhz max\n",
-                       policy->min, policy->max);
+                         policy->min, policy->max);
 
         return ret;
 }
 
 static int pxa_set_target(struct cpufreq_policy *policy,
-                           unsigned int target_freq,
-                           unsigned int relation)
+                          unsigned int target_freq,
+                          unsigned int relation)
 {
         struct cpufreq_frequency_table *pxa_freqs_table;
         pxa_freqs_t *pxa_freq_settings;
@@ -155,7 +156,7 @@ static int pxa_set_target(struct cpufreq_policy *policy,
 
         /* Lookup the next frequency */
         if (cpufreq_frequency_table_target(policy, pxa_freqs_table,
-                                           target_freq, relation, &idx)) {
+                                           target_freq, relation, &idx)) {
                 return -EINVAL;
         }
 
@@ -164,10 +165,11 @@ static int pxa_set_target(struct cpufreq_policy *policy,
         freqs.cpu = policy->cpu;
 
         if (freq_debug)
-                pr_debug(KERN_INFO "Changing CPU frequency to %d Mhz, (SDRAM %d Mhz)\n",
-                       freqs.new / 1000, (pxa_freq_settings[idx].div2) ?
-                       (pxa_freq_settings[idx].membus / 2000) :
-                       (pxa_freq_settings[idx].membus / 1000));
+                pr_debug(KERN_INFO "Changing CPU frequency to %d Mhz, "
+                         "(SDRAM %d Mhz)\n",
+                         freqs.new / 1000, (pxa_freq_settings[idx].div2) ?
+                         (pxa_freq_settings[idx].membus / 2000) :
+                         (pxa_freq_settings[idx].membus / 1000));
 
         /*
          * Tell everyone what we're about to do...
@@ -177,16 +179,17 @@ static int pxa_set_target(struct cpufreq_policy *policy,
         cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
 
         /* Calculate the next MDREFR.  If we're slowing down the SDRAM clock
-         * we need to preset the smaller DRI before the change.  If we're speeding
-         * up we need to set the larger DRI value after the change.
+         * we need to preset the smaller DRI before the change.  If we're
+         * speeding up we need to set the larger DRI value after the change.
          */
         preset_mdrefr = postset_mdrefr = MDREFR;
-        if ((MDREFR & MDREFR_DRI_MASK) > MDREFR_DRI(pxa_freq_settings[idx].membus)) {
+        if ((MDREFR & MDREFR_DRI_MASK) >
+            MDREFR_DRI(pxa_freq_settings[idx].membus)) {
                 preset_mdrefr = (preset_mdrefr & ~MDREFR_DRI_MASK) |
-                                MDREFR_DRI(pxa_freq_settings[idx].membus);
+                        MDREFR_DRI(pxa_freq_settings[idx].membus);
         }
         postset_mdrefr = (postset_mdrefr & ~MDREFR_DRI_MASK) |
-                            MDREFR_DRI(pxa_freq_settings[idx].membus);
+                MDREFR_DRI(pxa_freq_settings[idx].membus);
 
         /* If we're dividing the memory clock by two for the SDRAM clock, this
          * must be set prior to the change.  Clearing the divide must be done
@@ -207,7 +210,7 @@ static int pxa_set_target(struct cpufreq_policy *policy,
         asm volatile("                                                  \n\
                 ldr     r4, [%1]                /* load MDREFR */       \n\
                 b       2f                                              \n\
-                .align  5                                               \n\
+                .align  5                                               \n\
 1:                                                                      \n\
                 str     %4, [%1]                /* preset the MDREFR */ \n\
                 mcr     p14, 0, %2, c6, c0, 0   /* set CCLKCFG[FCS] */  \n\
@@ -217,10 +220,10 @@ static int pxa_set_target(struct cpufreq_policy *policy,
 2:              b       1b                                              \n\
 3:              nop                                                     \n\
           "
-          : "=&r" (unused)
-          : "r" (&MDREFR), "r" (CCLKCFG_TURBO|CCLKCFG_FCS), "r" (ramstart),
-            "r" (preset_mdrefr), "r" (postset_mdrefr)
-          : "r4", "r5");
+                     : "=&r" (unused)
+                     : "r" (&MDREFR), "r" (CCLKCFG_TURBO|CCLKCFG_FCS), "r" (ramstart),
+                     "r" (preset_mdrefr), "r" (postset_mdrefr)
+                     : "r4", "r5");
         local_irq_restore(flags);
 
         /*
@@ -248,7 +251,7 @@ static int pxa_cpufreq_init(struct cpufreq_policy *policy)
         policy->cpuinfo.max_freq = PXA25x_MAX_FREQ;
         policy->cpuinfo.min_freq = PXA25x_MIN_FREQ;
         policy->cpuinfo.transition_latency = 1000; /* FIXME: 1 ms, assumed */
-        policy->cur = get_clk_frequency_khz(0);    /* current freq */
+        policy->cur = get_clk_frequency_khz(0);    /* current freq */
         policy->min = policy->max = policy->cur;
 
         /* Generate the run cpufreq_frequency_table struct */
@@ -260,7 +263,8 @@ static int pxa_cpufreq_init(struct cpufreq_policy *policy)
         pxa255_run_freq_table[i].frequency = CPUFREQ_TABLE_END;
         /* Generate the turbo cpufreq_frequency_table struct */
         for (i = 0; i < NUM_TURBO_FREQS; i++) {
-                pxa255_turbo_freq_table[i].frequency = pxa255_turbo_freqs[i].khz;
+                pxa255_turbo_freq_table[i].frequency =
+                        pxa255_turbo_freqs[i].khz;
                 pxa255_turbo_freq_table[i].index = i;
         }
         pxa255_turbo_freq_table[i].frequency = CPUFREQ_TABLE_END;
@@ -293,8 +297,8 @@ static void __exit pxa_cpu_exit(void)
 }
 
 
-MODULE_AUTHOR ("Intrinsyc Software Inc.");
-MODULE_DESCRIPTION ("CPU frequency changing driver for the PXA architecture");
+MODULE_AUTHOR("Intrinsyc Software Inc.");
+MODULE_DESCRIPTION("CPU frequency changing driver for the PXA architecture");
 MODULE_LICENSE("GPL");
 module_init(pxa_cpu_init);
 module_exit(pxa_cpu_exit);