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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-04-08 13:28:02 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-04-08 13:28:02 +0200
commitfe10739284bae68b57d3dbcad81f34772cfd2716 (patch)
tree896fa694b7f6a46266ff8eb5291c35781be53e25
parent8c73c4d8319f38ec1a1fc630a88cbcb79cb1a8f6 (diff)
parentf334a1e8434c49b6f9c947d3eb7caf712fbcc3fa (diff)
downloadlinux-fe10739284bae68b57d3dbcad81f34772cfd2716.tar.gz
linux-fe10739284bae68b57d3dbcad81f34772cfd2716.tar.bz2
linux-fe10739284bae68b57d3dbcad81f34772cfd2716.zip
Merge branch 'pm-cpufreq'
* pm-cpufreq: cpufreq: ppc: Remove duplicate inclusion of fsl_soc.h cpufreq: create another field .flags in cpufreq_frequency_table cpufreq: use kzalloc() to allocate memory for cpufreq_frequency_table cpufreq: don't print value of .driver_data from core cpufreq: ia64: don't set .driver_data to index cpufreq: powernv: Select CPUFreq related Kconfig options for powernv cpufreq: powernv: Use cpufreq_frequency_table.driver_data to store pstate ids cpufreq: powernv: cpufreq driver for powernv platform cpufreq: at32ap: don't declare local variable as static cpufreq: loongson2_cpufreq: don't declare local variable as static cpufreq: unicore32: fix typo issue for 'clk' cpufreq: exynos: Disable on multiplatform build
-rw-r--r--arch/mips/loongson/lemote-2f/clock.c20
-rw-r--r--arch/powerpc/configs/pseries_defconfig1
-rw-r--r--arch/powerpc/configs/pseries_le_defconfig1
-rw-r--r--arch/powerpc/include/asm/reg.h4
-rw-r--r--arch/powerpc/platforms/powernv/Kconfig6
-rw-r--r--drivers/cpufreq/Kconfig.arm6
-rw-r--r--drivers/cpufreq/Kconfig.powerpc8
-rw-r--r--drivers/cpufreq/Makefile1
-rw-r--r--drivers/cpufreq/acpi-cpufreq.c2
-rw-r--r--drivers/cpufreq/at32ap-cpufreq.c2
-rw-r--r--drivers/cpufreq/cris-artpec3-cpufreq.c6
-rw-r--r--drivers/cpufreq/cris-etraxfs-cpufreq.c6
-rw-r--r--drivers/cpufreq/elanfreq.c18
-rw-r--r--drivers/cpufreq/exynos4210-cpufreq.c12
-rw-r--r--drivers/cpufreq/exynos4x12-cpufreq.c30
-rw-r--r--drivers/cpufreq/exynos5250-cpufreq.c34
-rw-r--r--drivers/cpufreq/freq_table.c11
-rw-r--r--drivers/cpufreq/ia64-acpi-cpufreq.c3
-rw-r--r--drivers/cpufreq/kirkwood-cpufreq.c6
-rw-r--r--drivers/cpufreq/longhaul.c2
-rw-r--r--drivers/cpufreq/loongson2_cpufreq.c2
-rw-r--r--drivers/cpufreq/maple-cpufreq.c6
-rw-r--r--drivers/cpufreq/p4-clockmod.c20
-rw-r--r--drivers/cpufreq/pasemi-cpufreq.c12
-rw-r--r--drivers/cpufreq/pmac32-cpufreq.c6
-rw-r--r--drivers/cpufreq/pmac64-cpufreq.c6
-rw-r--r--drivers/cpufreq/powernow-k6.c18
-rw-r--r--drivers/cpufreq/powernow-k8.c5
-rw-r--r--drivers/cpufreq/powernv-cpufreq.c341
-rw-r--r--drivers/cpufreq/ppc-corenet-cpufreq.c1
-rw-r--r--drivers/cpufreq/ppc_cbe_cpufreq.c18
-rw-r--r--drivers/cpufreq/s3c2416-cpufreq.c20
-rw-r--r--drivers/cpufreq/s3c24xx-cpufreq.c4
-rw-r--r--drivers/cpufreq/s3c64xx-cpufreq.c26
-rw-r--r--drivers/cpufreq/s5pv210-cpufreq.c12
-rw-r--r--drivers/cpufreq/sc520_freq.c6
-rw-r--r--drivers/cpufreq/spear-cpufreq.c7
-rw-r--r--drivers/cpufreq/speedstep-ich.c6
-rw-r--r--drivers/cpufreq/speedstep-smi.c6
-rw-r--r--drivers/cpufreq/unicore2-cpufreq.c2
-rw-r--r--include/linux/cpufreq.h9
41 files changed, 535 insertions, 177 deletions
diff --git a/arch/mips/loongson/lemote-2f/clock.c b/arch/mips/loongson/lemote-2f/clock.c
index aed32b88576c..e1f427f4f5f3 100644
--- a/arch/mips/loongson/lemote-2f/clock.c
+++ b/arch/mips/loongson/lemote-2f/clock.c
@@ -28,16 +28,16 @@ enum {
};
struct cpufreq_frequency_table loongson2_clockmod_table[] = {
- {DC_RESV, CPUFREQ_ENTRY_INVALID},
- {DC_ZERO, CPUFREQ_ENTRY_INVALID},
- {DC_25PT, 0},
- {DC_37PT, 0},
- {DC_50PT, 0},
- {DC_62PT, 0},
- {DC_75PT, 0},
- {DC_87PT, 0},
- {DC_DISABLE, 0},
- {DC_RESV, CPUFREQ_TABLE_END},
+ {0, DC_RESV, CPUFREQ_ENTRY_INVALID},
+ {0, DC_ZERO, CPUFREQ_ENTRY_INVALID},
+ {0, DC_25PT, 0},
+ {0, DC_37PT, 0},
+ {0, DC_50PT, 0},
+ {0, DC_62PT, 0},
+ {0, DC_75PT, 0},
+ {0, DC_87PT, 0},
+ {0, DC_DISABLE, 0},
+ {0, DC_RESV, CPUFREQ_TABLE_END},
};
EXPORT_SYMBOL_GPL(loongson2_clockmod_table);
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index 9ea8342bd219..a905063281cc 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -306,3 +306,4 @@ CONFIG_KVM_BOOK3S_64=m
CONFIG_KVM_BOOK3S_64_HV=y
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
+CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
diff --git a/arch/powerpc/configs/pseries_le_defconfig b/arch/powerpc/configs/pseries_le_defconfig
index 3c84f9d87980..58e3dbf43ca4 100644
--- a/arch/powerpc/configs/pseries_le_defconfig
+++ b/arch/powerpc/configs/pseries_le_defconfig
@@ -301,3 +301,4 @@ CONFIG_CRYPTO_LZO=m
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_DEV_NX=y
CONFIG_CRYPTO_DEV_NX_ENCRYPT=m
+CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 0dcc48af25a3..e5d2e0bc7e03 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -272,6 +272,10 @@
#define SPRN_HSRR1 0x13B /* Hypervisor Save/Restore 1 */
#define SPRN_IC 0x350 /* Virtual Instruction Count */
#define SPRN_VTB 0x351 /* Virtual Time Base */
+#define SPRN_PMICR 0x354 /* Power Management Idle Control Reg */
+#define SPRN_PMSR 0x355 /* Power Management Status Reg */
+#define SPRN_PMCR 0x374 /* Power Management Control Register */
+
/* HFSCR and FSCR bit numbers are the same */
#define FSCR_TAR_LG 8 /* Enable Target Address Register */
#define FSCR_EBB_LG 7 /* Enable Event Based Branching */
diff --git a/arch/powerpc/platforms/powernv/Kconfig b/arch/powerpc/platforms/powernv/Kconfig
index 895e8a20a3fc..c252ee95bddf 100644
--- a/arch/powerpc/platforms/powernv/Kconfig
+++ b/arch/powerpc/platforms/powernv/Kconfig
@@ -11,6 +11,12 @@ config PPC_POWERNV
select PPC_UDBG_16550
select PPC_SCOM
select ARCH_RANDOM
+ select CPU_FREQ
+ select CPU_FREQ_GOV_PERFORMANCE
+ select CPU_FREQ_GOV_POWERSAVE
+ select CPU_FREQ_GOV_USERSPACE
+ select CPU_FREQ_GOV_ONDEMAND
+ select CPU_FREQ_GOV_CONSERVATIVE
default y
config PPC_POWERNV_RTAS
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 1e2b9db563ec..0e9cce82844b 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -30,7 +30,7 @@ config ARM_EXYNOS_CPUFREQ
config ARM_EXYNOS4210_CPUFREQ
bool "SAMSUNG EXYNOS4210"
- depends on CPU_EXYNOS4210
+ depends on CPU_EXYNOS4210 && !ARCH_MULTIPLATFORM
default y
select ARM_EXYNOS_CPUFREQ
help
@@ -41,7 +41,7 @@ config ARM_EXYNOS4210_CPUFREQ
config ARM_EXYNOS4X12_CPUFREQ
bool "SAMSUNG EXYNOS4x12"
- depends on (SOC_EXYNOS4212 || SOC_EXYNOS4412)
+ depends on (SOC_EXYNOS4212 || SOC_EXYNOS4412) && !ARCH_MULTIPLATFORM
default y
select ARM_EXYNOS_CPUFREQ
help
@@ -52,7 +52,7 @@ config ARM_EXYNOS4X12_CPUFREQ
config ARM_EXYNOS5250_CPUFREQ
bool "SAMSUNG EXYNOS5250"
- depends on SOC_EXYNOS5250
+ depends on SOC_EXYNOS5250 && !ARCH_MULTIPLATFORM
default y
select ARM_EXYNOS_CPUFREQ
help
diff --git a/drivers/cpufreq/Kconfig.powerpc b/drivers/cpufreq/Kconfig.powerpc
index ca0021a96e19..72564b701b4a 100644
--- a/drivers/cpufreq/Kconfig.powerpc
+++ b/drivers/cpufreq/Kconfig.powerpc
@@ -54,3 +54,11 @@ config PPC_PASEMI_CPUFREQ
help
This adds the support for frequency switching on PA Semi
PWRficient processors.
+
+config POWERNV_CPUFREQ
+ tristate "CPU frequency scaling for IBM POWERNV platform"
+ depends on PPC_POWERNV
+ default y
+ help
+ This adds support for CPU frequency switching on IBM POWERNV
+ platform
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index 74945652dd7a..0dbb963c1aef 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -86,6 +86,7 @@ obj-$(CONFIG_PPC_CORENET_CPUFREQ) += ppc-corenet-cpufreq.o
obj-$(CONFIG_CPU_FREQ_PMAC) += pmac32-cpufreq.o
obj-$(CONFIG_CPU_FREQ_PMAC64) += pmac64-cpufreq.o
obj-$(CONFIG_PPC_PASEMI_CPUFREQ) += pasemi-cpufreq.o
+obj-$(CONFIG_POWERNV_CPUFREQ) += powernv-cpufreq.o
##################################################################################
# Other platform drivers
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index d5eaedbe464f..000e4e0afd7e 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -754,7 +754,7 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
goto err_unreg;
}
- data->freq_table = kmalloc(sizeof(*data->freq_table) *
+ data->freq_table = kzalloc(sizeof(*data->freq_table) *
(perf->state_count+1), GFP_KERNEL);
if (!data->freq_table) {
result = -ENOMEM;
diff --git a/drivers/cpufreq/at32ap-cpufreq.c b/drivers/cpufreq/at32ap-cpufreq.c
index a1c79f549edb..7b612c8bb09e 100644
--- a/drivers/cpufreq/at32ap-cpufreq.c
+++ b/drivers/cpufreq/at32ap-cpufreq.c
@@ -52,7 +52,7 @@ static int at32_set_target(struct cpufreq_policy *policy, unsigned int index)
static int at32_cpufreq_driver_init(struct cpufreq_policy *policy)
{
unsigned int frequency, rate, min_freq;
- static struct clk *cpuclk;
+ struct clk *cpuclk;
int retval, steps, i;
if (policy->cpu != 0)
diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c
index d4573032cbbc..601b88c490cf 100644
--- a/drivers/cpufreq/cris-artpec3-cpufreq.c
+++ b/drivers/cpufreq/cris-artpec3-cpufreq.c
@@ -15,9 +15,9 @@ static struct notifier_block cris_sdram_freq_notifier_block = {
};
static struct cpufreq_frequency_table cris_freq_table[] = {
- {0x01, 6000},
- {0x02, 200000},
- {0, CPUFREQ_TABLE_END},
+ {0, 0x01, 6000},
+ {0, 0x02, 200000},
+ {0, 0, CPUFREQ_TABLE_END},
};
static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)
diff --git a/drivers/cpufreq/cris-etraxfs-cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c
index 13c3361437f7..22b2cdde74d9 100644
--- a/drivers/cpufreq/cris-etraxfs-cpufreq.c
+++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c
@@ -15,9 +15,9 @@ static struct notifier_block cris_sdram_freq_notifier_block = {
};
static struct cpufreq_frequency_table cris_freq_table[] = {
- {0x01, 6000},
- {0x02, 200000},
- {0, CPUFREQ_TABLE_END},
+ {0, 0x01, 6000},
+ {0, 0x02, 200000},
+ {0, 0, CPUFREQ_TABLE_END},
};
static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)
diff --git a/drivers/cpufreq/elanfreq.c b/drivers/cpufreq/elanfreq.c
index c987e94708f5..7f5d2a68c353 100644
--- a/drivers/cpufreq/elanfreq.c
+++ b/drivers/cpufreq/elanfreq.c
@@ -56,15 +56,15 @@ static struct s_elan_multiplier elan_multiplier[] = {
};
static struct cpufreq_frequency_table elanfreq_table[] = {
- {0, 1000},
- {1, 2000},
- {2, 4000},
- {3, 8000},
- {4, 16000},
- {5, 33000},
- {6, 66000},
- {7, 99000},
- {0, CPUFREQ_TABLE_END},
+ {0, 0, 1000},
+ {0, 1, 2000},
+ {0, 2, 4000},
+ {0, 3, 8000},
+ {0, 4, 16000},
+ {0, 5, 33000},
+ {0, 6, 66000},
+ {0, 7, 99000},
+ {0, 0, CPUFREQ_TABLE_END},
};
diff --git a/drivers/cpufreq/exynos4210-cpufreq.c b/drivers/cpufreq/exynos4210-cpufreq.c
index 40d84c43d8f4..6384e5b9a347 100644
--- a/drivers/cpufreq/exynos4210-cpufreq.c
+++ b/drivers/cpufreq/exynos4210-cpufreq.c
@@ -29,12 +29,12 @@ static unsigned int exynos4210_volt_table[] = {
};
static struct cpufreq_frequency_table exynos4210_freq_table[] = {
- {L0, 1200 * 1000},
- {L1, 1000 * 1000},
- {L2, 800 * 1000},
- {L3, 500 * 1000},
- {L4, 200 * 1000},
- {0, CPUFREQ_TABLE_END},
+ {0, L0, 1200 * 1000},
+ {0, L1, 1000 * 1000},
+ {0, L2, 800 * 1000},
+ {0, L3, 500 * 1000},
+ {0, L4, 200 * 1000},
+ {0, 0, CPUFREQ_TABLE_END},
};
static struct apll_freq apll_freq_4210[] = {
diff --git a/drivers/cpufreq/exynos4x12-cpufreq.c b/drivers/cpufreq/exynos4x12-cpufreq.c
index 7c11ace3b3fc..466c76ad335b 100644
--- a/drivers/cpufreq/exynos4x12-cpufreq.c
+++ b/drivers/cpufreq/exynos4x12-cpufreq.c
@@ -30,21 +30,21 @@ static unsigned int exynos4x12_volt_table[] = {
};
static struct cpufreq_frequency_table exynos4x12_freq_table[] = {
- {CPUFREQ_BOOST_FREQ, 1500 * 1000},
- {L1, 1400 * 1000},
- {L2, 1300 * 1000},
- {L3, 1200 * 1000},
- {L4, 1100 * 1000},
- {L5, 1000 * 1000},
- {L6, 900 * 1000},
- {L7, 800 * 1000},
- {L8, 700 * 1000},
- {L9, 600 * 1000},
- {L10, 500 * 1000},
- {L11, 400 * 1000},
- {L12, 300 * 1000},
- {L13, 200 * 1000},
- {0, CPUFREQ_TABLE_END},
+ {CPUFREQ_BOOST_FREQ, L0, 1500 * 1000},
+ {0, L1, 1400 * 1000},
+ {0, L2, 1300 * 1000},
+ {0, L3, 1200 * 1000},
+ {0, L4, 1100 * 1000},
+ {0, L5, 1000 * 1000},
+ {0, L6, 900 * 1000},
+ {0, L7, 800 * 1000},
+ {0, L8, 700 * 1000},
+ {0, L9, 600 * 1000},
+ {0, L10, 500 * 1000},
+ {0, L11, 400 * 1000},
+ {0, L12, 300 * 1000},
+ {0, L13, 200 * 1000},
+ {0, 0, CPUFREQ_TABLE_END},
};
static struct apll_freq *apll_freq_4x12;
diff --git a/drivers/cpufreq/exynos5250-cpufreq.c b/drivers/cpufreq/exynos5250-cpufreq.c
index 5f90b82a4082..363a0b3fe1b1 100644
--- a/drivers/cpufreq/exynos5250-cpufreq.c
+++ b/drivers/cpufreq/exynos5250-cpufreq.c
@@ -34,23 +34,23 @@ static unsigned int exynos5250_volt_table[] = {
};
static struct cpufreq_frequency_table exynos5250_freq_table[] = {
- {L0, 1700 * 1000},
- {L1, 1600 * 1000},
- {L2, 1500 * 1000},
- {L3, 1400 * 1000},
- {L4, 1300 * 1000},
- {L5, 1200 * 1000},
- {L6, 1100 * 1000},
- {L7, 1000 * 1000},
- {L8, 900 * 1000},
- {L9, 800 * 1000},
- {L10, 700 * 1000},
- {L11, 600 * 1000},
- {L12, 500 * 1000},
- {L13, 400 * 1000},
- {L14, 300 * 1000},
- {L15, 200 * 1000},
- {0, CPUFREQ_TABLE_END},
+ {0, L0, 1700 * 1000},
+ {0, L1, 1600 * 1000},
+ {0, L2, 1500 * 1000},
+ {0, L3, 1400 * 1000},
+ {0, L4, 1300 * 1000},
+ {0, L5, 1200 * 1000},
+ {0, L6, 1100 * 1000},
+ {0, L7, 1000 * 1000},
+ {0, L8, 900 * 1000},
+ {0, L9, 800 * 1000},
+ {0, L10, 700 * 1000},
+ {0, L11, 600 * 1000},
+ {0, L12, 500 * 1000},
+ {0, L13, 400 * 1000},
+ {0, L14, 300 * 1000},
+ {0, L15, 200 * 1000},
+ {0, 0, CPUFREQ_TABLE_END},
};
static struct apll_freq apll_freq_5250[] = {
diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c
index 65a477075b3f..08e7bbcf6d73 100644
--- a/drivers/cpufreq/freq_table.c
+++ b/drivers/cpufreq/freq_table.c
@@ -33,11 +33,10 @@ int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy,
continue;
}
if (!cpufreq_boost_enabled()
- && table[i].driver_data == CPUFREQ_BOOST_FREQ)
+ && (table[i].flags & CPUFREQ_BOOST_FREQ))
continue;
- pr_debug("table entry %u: %u kHz, %u driver_data\n",
- i, freq, table[i].driver_data);
+ pr_debug("table entry %u: %u kHz\n", i, freq);
if (freq < min_freq)
min_freq = freq;
if (freq > max_freq)
@@ -175,8 +174,8 @@ int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
} else
*index = optimal.driver_data;
- pr_debug("target is %u (%u kHz, %u)\n", *index, table[*index].frequency,
- table[*index].driver_data);
+ pr_debug("target index is %u, freq is:%u kHz\n", *index,
+ table[*index].frequency);
return 0;
}
@@ -230,7 +229,7 @@ static ssize_t show_available_freqs(struct cpufreq_policy *policy, char *buf,
* show_boost = false and driver_data != BOOST freq
* display NON BOOST freqs
*/
- if (show_boost ^ (table[i].driver_data == CPUFREQ_BOOST_FREQ))
+ if (show_boost ^ (table[i].flags & CPUFREQ_BOOST_FREQ))
continue;
count += sprintf(&buf[count], "%d ", table[i].frequency);
diff --git a/drivers/cpufreq/ia64-acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c
index a22b5d182e0e..c30aaa6a54e8 100644
--- a/drivers/cpufreq/ia64-acpi-cpufreq.c
+++ b/drivers/cpufreq/ia64-acpi-cpufreq.c
@@ -254,7 +254,7 @@ acpi_cpufreq_cpu_init (
}
/* alloc freq_table */
- data->freq_table = kmalloc(sizeof(*data->freq_table) *
+ data->freq_table = kzalloc(sizeof(*data->freq_table) *
(data->acpi_data.state_count + 1),
GFP_KERNEL);
if (!data->freq_table) {
@@ -275,7 +275,6 @@ acpi_cpufreq_cpu_init (
/* table init */
for (i = 0; i <= data->acpi_data.state_count; i++)
{
- data->freq_table[i].driver_data = i;
if (i < data->acpi_data.state_count) {
data->freq_table[i].frequency =
data->acpi_data.states[i].core_frequency * 1000;
diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c
index 3d114bc5a97a..37a480680cd0 100644
--- a/drivers/cpufreq/kirkwood-cpufreq.c
+++ b/drivers/cpufreq/kirkwood-cpufreq.c
@@ -43,9 +43,9 @@ static struct priv
* table.
*/
static struct cpufreq_frequency_table kirkwood_freq_table[] = {
- {STATE_CPU_FREQ, 0}, /* CPU uses cpuclk */
- {STATE_DDR_FREQ, 0}, /* CPU uses ddrclk */
- {0, CPUFREQ_TABLE_END},
+ {0, STATE_CPU_FREQ, 0}, /* CPU uses cpuclk */
+ {0, STATE_DDR_FREQ, 0}, /* CPU uses ddrclk */
+ {0, 0, CPUFREQ_TABLE_END},
};
static unsigned int kirkwood_cpufreq_get_cpu_frequency(unsigned int cpu)
diff --git a/drivers/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c
index 5c440f87ba8a..d00e5d1abd25 100644
--- a/drivers/cpufreq/longhaul.c
+++ b/drivers/cpufreq/longhaul.c
@@ -475,7 +475,7 @@ static int longhaul_get_ranges(void)
return -EINVAL;
}
- longhaul_table = kmalloc((numscales + 1) * sizeof(*longhaul_table),
+ longhaul_table = kzalloc((numscales + 1) * sizeof(*longhaul_table),
GFP_KERNEL);
if (!longhaul_table)
return -ENOMEM;
diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index a3588d61d933..f0bc31f5db27 100644
--- a/drivers/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -69,7 +69,7 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy)
{
- static struct clk *cpuclk;
+ struct clk *cpuclk;
int i;
unsigned long rate;
int ret;
diff --git a/drivers/cpufreq/maple-cpufreq.c b/drivers/cpufreq/maple-cpufreq.c
index c4dfa42a75ac..cc3408fc073f 100644
--- a/drivers/cpufreq/maple-cpufreq.c
+++ b/drivers/cpufreq/maple-cpufreq.c
@@ -59,9 +59,9 @@
#define CPUFREQ_LOW 1
static struct cpufreq_frequency_table maple_cpu_freqs[] = {
- {CPUFREQ_HIGH, 0},
- {CPUFREQ_LOW, 0},
- {0, CPUFREQ_TABLE_END},
+ {0, CPUFREQ_HIGH, 0},
+ {0, CPUFREQ_LOW, 0},
+ {0, 0, CPUFREQ_TABLE_END},
};
/* Power mode data is an array of the 32 bits PCR values to use for
diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c
index 74f593e70e19..529cfd92158f 100644
--- a/drivers/cpufreq/p4-clockmod.c
+++ b/drivers/cpufreq/p4-clockmod.c
@@ -92,16 +92,16 @@ static int cpufreq_p4_setdc(unsigned int cpu, unsigned int newstate)
static struct cpufreq_frequency_table p4clockmod_table[] = {
- {DC_RESV, CPUFREQ_ENTRY_INVALID},
- {DC_DFLT, 0},
- {DC_25PT, 0},
- {DC_38PT, 0},
- {DC_50PT, 0},
- {DC_64PT, 0},
- {DC_75PT, 0},
- {DC_88PT, 0},
- {DC_DISABLE, 0},
- {DC_RESV, CPUFREQ_TABLE_END},
+ {0, DC_RESV, CPUFREQ_ENTRY_INVALID},
+ {0, DC_DFLT, 0},
+ {0, DC_25PT, 0},
+ {0, DC_38PT, 0},
+ {0, DC_50PT, 0},
+ {0, DC_64PT, 0},
+ {0, DC_75PT, 0},
+ {0, DC_88PT, 0},
+ {0, DC_DISABLE, 0},
+ {0, DC_RESV, CPUFREQ_TABLE_END},
};
diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c
index 6a2b7d3e85a7..84c84b5f0f3a 100644
--- a/drivers/cpufreq/pasemi-cpufreq.c
+++ b/drivers/cpufreq/pasemi-cpufreq.c
@@ -60,12 +60,12 @@ static int current_astate;
/* We support 5(A0-A4) power states excluding turbo(A5-A6) modes */
static struct cpufreq_frequency_table pas_freqs[] = {
- {0, 0},
- {1, 0},
- {2, 0},
- {3, 0},
- {4, 0},
- {0, CPUFREQ_TABLE_END},
+ {0, 0, 0},
+ {0, 1, 0},
+ {0, 2, 0},
+ {0, 3, 0},
+ {0, 4, 0},
+ {0, 0, CPUFREQ_TABLE_END},
};
/*
diff --git a/drivers/cpufreq/pmac32-cpufreq.c b/drivers/cpufreq/pmac32-cpufreq.c
index cf55d202f332..7615180d7ee3 100644
--- a/drivers/cpufreq/pmac32-cpufreq.c
+++ b/drivers/cpufreq/pmac32-cpufreq.c
@@ -81,9 +81,9 @@ static int is_pmu_based;
#define CPUFREQ_LOW 1
static struct cpufreq_frequency_table pmac_cpu_freqs[] = {
- {CPUFREQ_HIGH, 0},
- {CPUFREQ_LOW, 0},
- {0, CPUFREQ_TABLE_END},
+ {0, CPUFREQ_HIGH, 0},
+ {0, CPUFREQ_LOW, 0},
+ {0, 0, CPUFREQ_TABLE_END},
};
static inline void local_delay(unsigned long ms)
diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c
index 6a338f8c3860..8bc422977b5b 100644
--- a/drivers/cpufreq/pmac64-cpufreq.c
+++ b/drivers/cpufreq/pmac64-cpufreq.c
@@ -65,9 +65,9 @@
#define CPUFREQ_LOW 1
static struct cpufreq_frequency_table g5_cpu_freqs[] = {
- {CPUFREQ_HIGH, 0},
- {CPUFREQ_LOW, 0},
- {0, CPUFREQ_TABLE_END},
+ {0, CPUFREQ_HIGH, 0},
+ {0, CPUFREQ_LOW, 0},
+ {0, 0, CPUFREQ_TABLE_END},
};
/* Power mode data is an array of the 32 bits PCR values to use for
diff --git a/drivers/cpufreq/powernow-k6.c b/drivers/cpufreq/powernow-k6.c
index 62c6f2e5afce..49f120e1bc7b 100644
--- a/drivers/cpufreq/powernow-k6.c
+++ b/drivers/cpufreq/powernow-k6.c
@@ -37,15 +37,15 @@ MODULE_PARM_DESC(bus_frequency, "Bus frequency in kHz");
/* Clock ratio multiplied by 10 - see table 27 in AMD#23446 */
static struct cpufreq_frequency_table clock_ratio[] = {
- {60, /* 110 -> 6.0x */ 0},
- {55, /* 011 -> 5.5x */ 0},
- {50, /* 001 -> 5.0x */ 0},
- {45, /* 000 -> 4.5x */ 0},
- {40, /* 010 -> 4.0x */ 0},
- {35, /* 111 -> 3.5x */ 0},
- {30, /* 101 -> 3.0x */ 0},
- {20, /* 100 -> 2.0x */ 0},
- {0, CPUFREQ_TABLE_END}
+ {0, 60, /* 110 -> 6.0x */ 0},
+ {0, 55, /* 011 -> 5.5x */ 0},
+ {0, 50, /* 001 -> 5.0x */ 0},
+ {0, 45, /* 000 -> 4.5x */ 0},
+ {0, 40, /* 010 -> 4.0x */ 0},
+ {0, 35, /* 111 -> 3.5x */ 0},
+ {0, 30, /* 101 -> 3.0x */ 0},
+ {0, 20, /* 100 -> 2.0x */ 0},
+ {0, 0, CPUFREQ_TABLE_END}
};
static const u8 index_to_register[8] = { 6, 3, 1, 0, 2, 7, 5, 4 };
diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index 770a9e1b3468..1b6ae6b57c11 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -623,7 +623,7 @@ static int fill_powernow_table(struct powernow_k8_data *data,
if (check_pst_table(data, pst, maxvid))
return -EINVAL;
- powernow_table = kmalloc((sizeof(*powernow_table)
+ powernow_table = kzalloc((sizeof(*powernow_table)
* (data->numps + 1)), GFP_KERNEL);
if (!powernow_table) {
printk(KERN_ERR PFX "powernow_table memory alloc failure\n");
@@ -793,7 +793,7 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
}
/* fill in data->powernow_table */
- powernow_table = kmalloc((sizeof(*powernow_table)
+ powernow_table = kzalloc((sizeof(*powernow_table)
* (data->acpi_data.state_count + 1)), GFP_KERNEL);
if (!powernow_table) {
pr_debug("powernow_table memory alloc failure\n");
@@ -810,7 +810,6 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
powernow_table[data->acpi_data.state_count].frequency =
CPUFREQ_TABLE_END;
- powernow_table[data->acpi_data.state_count].driver_data = 0;
data->powernow_table = powernow_table;
if (cpumask_first(cpu_core_mask(data->cpu)) == data->cpu)
diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c
new file mode 100644
index 000000000000..9edccc63245d
--- /dev/null
+++ b/drivers/cpufreq/powernv-cpufreq.c
@@ -0,0 +1,341 @@
+/*
+ * POWERNV cpufreq driver for the IBM POWER processors
+ *
+ * (C) Copyright IBM 2014
+ *
+ * Author: Vaidyanathan Srinivasan <svaidy at linux.vnet.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#define pr_fmt(fmt) "powernv-cpufreq: " fmt
+
+#include <linux/kernel.h>
+#include <linux/sysfs.h>
+#include <linux/cpumask.h>
+#include <linux/module.h>
+#include <linux/cpufreq.h>
+#include <linux/smp.h>
+#include <linux/of.h>
+
+#include <asm/cputhreads.h>
+#include <asm/reg.h>
+
+#define POWERNV_MAX_PSTATES 256
+
+static struct cpufreq_frequency_table powernv_freqs[POWERNV_MAX_PSTATES+1];
+
+/*
+ * Note: The set of pstates consists of contiguous integers, the
+ * smallest of which is indicated by powernv_pstate_info.min, the
+ * largest of which is indicated by powernv_pstate_info.max.
+ *
+ * The nominal pstate is the highest non-turbo pstate in this
+ * platform. This is indicated by powernv_pstate_info.nominal.
+ */
+static struct powernv_pstate_info {
+ int min;
+ int max;
+ int nominal;
+ int nr_pstates;
+} powernv_pstate_info;
+
+/*
+ * Initialize the freq table based on data obtained
+ * from the firmware passed via device-tree
+ */
+static int init_powernv_pstates(void)
+{
+ struct device_node *power_mgt;
+ int i, pstate_min, pstate_max, pstate_nominal, nr_pstates = 0;
+ const __be32 *pstate_ids, *pstate_freqs;
+ u32 len_ids, len_freqs;
+
+ power_mgt = of_find_node_by_path("/ibm,opal/power-mgt");
+ if (!power_mgt) {
+ pr_warn("power-mgt node not found\n");
+ return -ENODEV;
+ }
+
+ if (of_property_read_u32(power_mgt, "ibm,pstate-min", &pstate_min)) {
+ pr_warn("ibm,pstate-min node not found\n");
+ return -ENODEV;
+ }
+
+ if (of_property_read_u32(power_mgt, "ibm,pstate-max", &pstate_max)) {
+ pr_warn("ibm,pstate-max node not found\n");
+ return -ENODEV;
+ }
+
+ if (of_property_read_u32(power_mgt, "ibm,pstate-nominal",
+ &pstate_nominal)) {
+ pr_warn("ibm,pstate-nominal not found\n");
+ return -ENODEV;
+ }
+ pr_info("cpufreq pstate min %d nominal %d max %d\n", pstate_min,
+ pstate_nominal, pstate_max);
+
+ pstate_ids = of_get_property(power_mgt, "ibm,pstate-ids", &len_ids);
+ if (!pstate_ids) {
+ pr_warn("ibm,pstate-ids not found\n");
+ return -ENODEV;
+ }
+
+ pstate_freqs = of_get_property(power_mgt, "ibm,pstate-frequencies-mhz",
+ &len_freqs);
+ if (!pstate_freqs) {
+ pr_warn("ibm,pstate-frequencies-mhz not found\n");
+ return -ENODEV;
+ }
+
+ WARN_ON(len_ids != len_freqs);
+ nr_pstates = min(len_ids, len_freqs) / sizeof(u32);
+ if (!nr_pstates) {
+ pr_warn("No PStates found\n");
+ return -ENODEV;
+ }
+
+ pr_debug("NR PStates %d\n", nr_pstates);
+ for (i = 0; i < nr_pstates; i++) {
+ u32 id = be32_to_cpu(pstate_ids[i]);
+ u32 freq = be32_to_cpu(pstate_freqs[i]);
+
+ pr_debug("PState id %d freq %d MHz\n", id, freq);
+ powernv_freqs[i].frequency = freq * 1000; /* kHz */
+ powernv_freqs[i].driver_data = id;
+ }
+ /* End of list marker entry */
+ powernv_freqs[i].frequency = CPUFREQ_TABLE_END;
+
+ powernv_pstate_info.min = pstate_min;
+ powernv_pstate_info.max = pstate_max;
+ powernv_pstate_info.nominal = pstate_nominal;
+ powernv_pstate_info.nr_pstates = nr_pstates;
+
+ return 0;
+}
+
+/* Returns the CPU frequency corresponding to the pstate_id. */
+static unsigned int pstate_id_to_freq(int pstate_id)
+{
+ int i;
+
+ i = powernv_pstate_info.max - pstate_id;
+ BUG_ON(i >= powernv_pstate_info.nr_pstates || i < 0);
+
+ return powernv_freqs[i].frequency;
+}
+
+/*
+ * cpuinfo_nominal_freq_show - Show the nominal CPU frequency as indicated by
+ * the firmware
+ */
+static ssize_t cpuinfo_nominal_freq_show(struct cpufreq_policy *policy,
+ char *buf)
+{
+ return sprintf(buf, "%u\n",
+ pstate_id_to_freq(powernv_pstate_info.nominal));
+}
+
+struct freq_attr cpufreq_freq_attr_cpuinfo_nominal_freq =
+ __ATTR_RO(cpuinfo_nominal_freq);
+
+static struct freq_attr *powernv_cpu_freq_attr[] = {
+ &cpufreq_freq_attr_scaling_available_freqs,
+ &cpufreq_freq_attr_cpuinfo_nominal_freq,
+ NULL,
+};
+
+/* Helper routines */
+
+/* Access helpers to power mgt SPR */
+
+static inline unsigned long get_pmspr(unsigned long sprn)
+{
+ switch (sprn) {
+ case SPRN_PMCR:
+ return mfspr(SPRN_PMCR);
+
+ case SPRN_PMICR:
+ return mfspr(SPRN_PMICR);
+
+ case SPRN_PMSR:
+ return mfspr(SPRN_PMSR);
+ }
+ BUG();
+}
+
+static inline void set_pmspr(unsigned long sprn, unsigned long val)
+{
+ switch (sprn) {
+ case SPRN_PMCR:
+ mtspr(SPRN_PMCR, val);
+ return;
+
+ case SPRN_PMICR:
+ mtspr(SPRN_PMICR, val);
+ return;
+ }
+ BUG();
+}
+
+/*
+ * Use objects of this type to query/update
+ * pstates on a remote CPU via smp_call_function.
+ */
+struct powernv_smp_call_data {
+ unsigned int freq;
+ int pstate_id;
+};
+
+/*
+ * powernv_read_cpu_freq: Reads the current frequency on this CPU.
+ *
+ * Called via smp_call_function.
+ *
+ * Note: The caller of the smp_call_function should pass an argument of
+ * the type 'struct powernv_smp_call_data *' along with this function.
+ *
+ * The current frequency on this CPU will be returned via
+ * ((struct powernv_smp_call_data *)arg)->freq;
+ */
+static void powernv_read_cpu_freq(void *arg)
+{
+ unsigned long pmspr_val;
+ s8 local_pstate_id;
+ struct powernv_smp_call_data *freq_data = arg;
+
+ pmspr_val = get_pmspr(SPRN_PMSR);
+
+ /*
+ * The local pstate id corresponds bits 48..55 in the PMSR.
+ * Note: Watch out for the sign!
+ */
+ local_pstate_id = (pmspr_val >> 48) & 0xFF;
+ freq_data->pstate_id = local_pstate_id;
+ freq_data->freq = pstate_id_to_freq(freq_data->pstate_id);
+
+ pr_debug("cpu %d pmsr %016lX pstate_id %d frequency %d kHz\n",
+ raw_smp_processor_id(), pmspr_val, freq_data->pstate_id,
+ freq_data->freq);
+}
+
+/*
+ * powernv_cpufreq_get: Returns the CPU frequency as reported by the
+ * firmware for CPU 'cpu'. This value is reported through the sysfs
+ * file cpuinfo_cur_freq.
+ */
+unsigned int powernv_cpufreq_get(unsigned int cpu)
+{
+ struct powernv_smp_call_data freq_data;
+
+ smp_call_function_any(cpu_sibling_mask(cpu), powernv_read_cpu_freq,
+ &freq_data, 1);
+
+ return freq_data.freq;
+}
+
+/*
+ * set_pstate: Sets the pstate on this CPU.
+ *
+ * This is called via an smp_call_function.
+ *
+ * The caller must ensure that freq_data is of the type
+ * (struct powernv_smp_call_data *) and the pstate_id which needs to be set
+ * on this CPU should be present in freq_data->pstate_id.
+ */
+static void set_pstate(void *freq_data)
+{
+ unsigned long val;
+ unsigned long pstate_ul =
+ ((struct powernv_smp_call_data *) freq_data)->pstate_id;
+
+ val = get_pmspr(SPRN_PMCR);
+ val = val & 0x0000FFFFFFFFFFFFULL;
+
+ pstate_ul = pstate_ul & 0xFF;
+
+ /* Set both global(bits 56..63) and local(bits 48..55) PStates */
+ val = val | (pstate_ul << 56) | (pstate_ul << 48);
+
+ pr_debug("Setting cpu %d pmcr to %016lX\n",
+ raw_smp_processor_id(), val);
+ set_pmspr(SPRN_PMCR, val);
+}
+
+/*
+ * powernv_cpufreq_target_index: Sets the frequency corresponding to
+ * the cpufreq table entry indexed by new_index on the cpus in the
+ * mask policy->cpus
+ */
+static int powernv_cpufreq_target_index(struct cpufreq_policy *policy,
+ unsigned int new_index)
+{
+ struct powernv_smp_call_data freq_data;
+
+ freq_data.pstate_id = powernv_freqs[new_index].driver_data;
+
+ /*
+ * Use smp_call_function to send IPI and execute the
+ * mtspr on target CPU. We could do that without IPI
+ * if current CPU is within policy->cpus (core)
+ */
+ smp_call_function_any(policy->cpus, set_pstate, &freq_data, 1);
+
+ return 0;
+}
+
+static int powernv_cpufreq_cpu_init(struct cpufreq_policy *policy)
+{
+ int base, i;
+
+ base = cpu_first_thread_sibling(policy->cpu);
+
+ for (i = 0; i < threads_per_core; i++)
+ cpumask_set_cpu(base + i, policy->cpus);
+
+ return cpufreq_table_validate_and_show(policy, powernv_freqs);
+}
+
+static struct cpufreq_driver powernv_cpufreq_driver = {
+ .name = "powernv-cpufreq",
+ .flags = CPUFREQ_CONST_LOOPS,
+ .init = powernv_cpufreq_cpu_init,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = powernv_cpufreq_target_index,
+ .get = powernv_cpufreq_get,
+ .attr = powernv_cpu_freq_attr,
+};
+
+static int __init powernv_cpufreq_init(void)
+{
+ int rc = 0;
+
+ /* Discover pstates from device tree and init */
+ rc = init_powernv_pstates();
+ if (rc) {
+ pr_info("powernv-cpufreq disabled. System does not support PState control\n");
+ return rc;
+ }
+
+ return cpufreq_register_driver(&powernv_cpufreq_driver);
+}
+module_init(powernv_cpufreq_init);
+
+static void __exit powernv_cpufreq_exit(void)
+{
+ cpufreq_unregister_driver(&powernv_cpufreq_driver);
+}
+module_exit(powernv_cpufreq_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Vaidyanathan Srinivasan <svaidy at linux.vnet.ibm.com>");
diff --git a/drivers/cpufreq/ppc-corenet-cpufreq.c b/drivers/cpufreq/ppc-corenet-cpufreq.c
index 3bd9123e7026..b7e677be1df0 100644
--- a/drivers/cpufreq/ppc-corenet-cpufreq.c
+++ b/drivers/cpufreq/ppc-corenet-cpufreq.c
@@ -13,7 +13,6 @@
#include <linux/clk.h>
#include <linux/cpufreq.h>
#include <linux/errno.h>
-#include <sysdev/fsl_soc.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
diff --git a/drivers/cpufreq/ppc_cbe_cpufreq.c b/drivers/cpufreq/ppc_cbe_cpufreq.c
index af7b1cabd1e7..5be8a48dba74 100644
--- a/drivers/cpufreq/ppc_cbe_cpufreq.c
+++ b/drivers/cpufreq/ppc_cbe_cpufreq.c
@@ -32,15 +32,15 @@
/* the CBE supports an 8 step frequency scaling */
static struct cpufreq_frequency_table cbe_freqs[] = {
- {1, 0},
- {2, 0},
- {3, 0},
- {4, 0},
- {5, 0},
- {6, 0},
- {8, 0},
- {10, 0},
- {0, CPUFREQ_TABLE_END},
+ {0, 1, 0},
+ {0, 2, 0},
+ {0, 3, 0},
+ {0, 4, 0},
+ {0, 5, 0},
+ {0, 6, 0},
+ {0, 8, 0},
+ {0, 10, 0},
+ {0, 0, CPUFREQ_TABLE_END},
};
/*
diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c
index 826b8be23099..4626f90559b5 100644
--- a/drivers/cpufreq/s3c2416-cpufreq.c
+++ b/drivers/cpufreq/s3c2416-cpufreq.c
@@ -72,19 +72,19 @@ static struct s3c2416_dvfs s3c2416_dvfs_table[] = {
#endif
static struct cpufreq_frequency_table s3c2416_freq_table[] = {
- { SOURCE_HCLK, FREQ_DVS },
- { SOURCE_ARMDIV, 133333 },
- { SOURCE_ARMDIV, 266666 },
- { SOURCE_ARMDIV, 400000 },
- { 0, CPUFREQ_TABLE_END },
+ { 0, SOURCE_HCLK, FREQ_DVS },
+ { 0, SOURCE_ARMDIV, 133333 },
+ { 0, SOURCE_ARMDIV, 266666 },
+ { 0, SOURCE_ARMDIV, 400000 },
+ { 0, 0, CPUFREQ_TABLE_END },
};
static struct cpufreq_frequency_table s3c2450_freq_table[] = {
- { SOURCE_HCLK, FREQ_DVS },
- { SOURCE_ARMDIV, 133500 },
- { SOURCE_ARMDIV, 267000 },
- { SOURCE_ARMDIV, 534000 },
- { 0, CPUFREQ_TABLE_END },
+ { 0, SOURCE_HCLK, FREQ_DVS },
+ { 0, SOURCE_ARMDIV, 133500 },
+ { 0, SOURCE_ARMDIV, 267000 },
+ { 0, SOURCE_ARMDIV, 534000 },
+ { 0, 0, CPUFREQ_TABLE_END },
};
static unsigned int s3c2416_cpufreq_get_speed(unsigned int cpu)
diff --git a/drivers/cpufreq/s3c24xx-cpufreq.c b/drivers/cpufreq/s3c24xx-cpufreq.c
index a3dc192d21f9..be1b2b5c9753 100644
--- a/drivers/cpufreq/s3c24xx-cpufreq.c
+++ b/drivers/cpufreq/s3c24xx-cpufreq.c
@@ -586,7 +586,7 @@ static int s3c_cpufreq_build_freq(void)
size = cpu_cur.info->calc_freqtable(&cpu_cur, NULL, 0);
size++;
- ftab = kmalloc(sizeof(*ftab) * size, GFP_KERNEL);
+ ftab = kzalloc(sizeof(*ftab) * size, GFP_KERNEL);
if (!ftab) {
printk(KERN_ERR "%s: no memory for tables\n", __func__);
return -ENOMEM;
@@ -664,7 +664,7 @@ int __init s3c_plltab_register(struct cpufreq_frequency_table *plls,
size = sizeof(*vals) * (plls_no + 1);
- vals = kmalloc(size, GFP_KERNEL);
+ vals = kzalloc(size, GFP_KERNEL);
if (vals) {
memcpy(vals, plls, size);
pll_reg = vals;
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
index c4226de079ab..ff7d3ecb85f0 100644
--- a/drivers/cpufreq/s3c64xx-cpufreq.c
+++ b/drivers/cpufreq/s3c64xx-cpufreq.c
@@ -37,19 +37,19 @@ static struct s3c64xx_dvfs s3c64xx_dvfs_table[] = {
};
static struct cpufreq_frequency_table s3c64xx_freq_table[] = {
- { 0, 66000 },
- { 0, 100000 },
- { 0, 133000 },
- { 1, 200000 },
- { 1, 222000 },
- { 1, 266000 },
- { 2, 333000 },
- { 2, 400000 },
- { 2, 532000 },
- { 2, 533000 },
- { 3, 667000 },
- { 4, 800000 },
- { 0, CPUFREQ_TABLE_END },
+ { 0, 0, 66000 },
+ { 0, 0, 100000 },
+ { 0, 0, 133000 },
+ { 0, 1, 200000 },
+ { 0, 1, 222000 },
+ { 0, 1, 266000 },
+ { 0, 2, 333000 },
+ { 0, 2, 400000 },
+ { 0, 2, 532000 },
+ { 0, 2, 533000 },
+ { 0, 3, 667000 },
+ { 0, 4, 800000 },
+ { 0, 0, CPUFREQ_TABLE_END },
};
#endif
diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c
index 72421534fff5..ab2c1a40d437 100644
--- a/drivers/cpufreq/s5pv210-cpufreq.c
+++ b/drivers/cpufreq/s5pv210-cpufreq.c
@@ -64,12 +64,12 @@ enum s5pv210_dmc_port {
};
static struct cpufreq_frequency_table s5pv210_freq_table[] = {
- {L0, 1000*1000},
- {L1, 800*1000},
- {L2, 400*1000},
- {L3, 200*1000},
- {L4, 100*1000},
- {0, CPUFREQ_TABLE_END},
+ {0, L0, 1000*1000},
+ {0, L1, 800*1000},
+ {0, L2, 400*1000},
+ {0, L3, 200*1000},
+ {0, L4, 100*1000},
+ {0, 0, CPUFREQ_TABLE_END},
};
static struct regulator *arm_regulator;
diff --git a/drivers/cpufreq/sc520_freq.c b/drivers/cpufreq/sc520_freq.c
index 69371bf0886d..ac84e4818014 100644
--- a/drivers/cpufreq/sc520_freq.c
+++ b/drivers/cpufreq/sc520_freq.c
@@ -33,9 +33,9 @@ static __u8 __iomem *cpuctl;
#define PFX "sc520_freq: "
static struct cpufreq_frequency_table sc520_freq_table[] = {
- {0x01, 100000},
- {0x02, 133000},
- {0, CPUFREQ_TABLE_END},
+ {0, 0x01, 100000},
+ {0, 0x02, 133000},
+ {0, 0, CPUFREQ_TABLE_END},
};
static unsigned int sc520_freq_get_cpu_frequency(unsigned int cpu)
diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c
index 4cfdcff8a310..38678396636d 100644
--- a/drivers/cpufreq/spear-cpufreq.c
+++ b/drivers/cpufreq/spear-cpufreq.c
@@ -195,18 +195,15 @@ static int spear_cpufreq_probe(struct platform_device *pdev)
cnt = prop->length / sizeof(u32);
val = prop->value;
- freq_tbl = kmalloc(sizeof(*freq_tbl) * (cnt + 1), GFP_KERNEL);
+ freq_tbl = kzalloc(sizeof(*freq_tbl) * (cnt + 1), GFP_KERNEL);
if (!freq_tbl) {
ret = -ENOMEM;
goto out_put_node;
}
- for (i = 0; i < cnt; i++) {
- freq_tbl[i].driver_data = i;
+ for (i = 0; i < cnt; i++)
freq_tbl[i].frequency = be32_to_cpup(val++);
- }
- freq_tbl[i].driver_data = i;
freq_tbl[i].frequency = CPUFREQ_TABLE_END;
spear_cpufreq.freq_tbl = freq_tbl;
diff --git a/drivers/cpufreq/speedstep-ich.c b/drivers/cpufreq/speedstep-ich.c
index 394ac159312a..1a07b5904ed5 100644
--- a/drivers/cpufreq/speedstep-ich.c
+++ b/drivers/cpufreq/speedstep-ich.c
@@ -49,9 +49,9 @@ static u32 pmbase;
* are in kHz for the time being.
*/
static struct cpufreq_frequency_table speedstep_freqs[] = {
- {SPEEDSTEP_HIGH, 0},
- {SPEEDSTEP_LOW, 0},
- {0, CPUFREQ_TABLE_END},
+ {0, SPEEDSTEP_HIGH, 0},
+ {0, SPEEDSTEP_LOW, 0},
+ {0, 0, CPUFREQ_TABLE_END},
};
diff --git a/drivers/cpufreq/speedstep-smi.c b/drivers/cpufreq/speedstep-smi.c
index db5d274dc13a..8635eec96da5 100644
--- a/drivers/cpufreq/speedstep-smi.c
+++ b/drivers/cpufreq/speedstep-smi.c
@@ -42,9 +42,9 @@ static enum speedstep_processor speedstep_processor;
* are in kHz for the time being.
*/
static struct cpufreq_frequency_table speedstep_freqs[] = {
- {SPEEDSTEP_HIGH, 0},
- {SPEEDSTEP_LOW, 0},
- {0, CPUFREQ_TABLE_END},
+ {0, SPEEDSTEP_HIGH, 0},
+ {0, SPEEDSTEP_LOW, 0},
+ {0, 0, CPUFREQ_TABLE_END},
};
#define GET_SPEEDSTEP_OWNER 0
diff --git a/drivers/cpufreq/unicore2-cpufreq.c b/drivers/cpufreq/unicore2-cpufreq.c
index 13be802b6170..8d045afa7fb4 100644
--- a/drivers/cpufreq/unicore2-cpufreq.c
+++ b/drivers/cpufreq/unicore2-cpufreq.c
@@ -45,7 +45,7 @@ static int ucv2_target(struct cpufreq_policy *policy,
freqs.new = target_freq;
cpufreq_freq_transition_begin(policy, &freqs);
- ret = clk_set_rate(policy->mclk, target_freq * 1000);
+ ret = clk_set_rate(policy->clk, target_freq * 1000);
cpufreq_freq_transition_end(policy, &freqs, ret);
return ret;
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index c48e595f623e..5ae5100c1f24 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -455,11 +455,14 @@ extern struct cpufreq_governor cpufreq_gov_conservative;
* FREQUENCY TABLE HELPERS *
*********************************************************************/
-#define CPUFREQ_ENTRY_INVALID ~0
-#define CPUFREQ_TABLE_END ~1
-#define CPUFREQ_BOOST_FREQ ~2
+/* Special Values of .frequency field */
+#define CPUFREQ_ENTRY_INVALID ~0
+#define CPUFREQ_TABLE_END ~1
+/* Special Values of .flags field */
+#define CPUFREQ_BOOST_FREQ (1 << 0)
struct cpufreq_frequency_table {
+ unsigned int flags;
unsigned int driver_data; /* driver specific data, not used by core */
unsigned int frequency; /* kHz - doesn't need to be in ascending
* order */