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authorLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 15:21:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-30 15:21:02 -0700
commit3ed1c478eff8db80e234d5446cb378b503135888 (patch)
treee1c8e0f488ca49c49b5a31fe59add4254381dd4b /arch/cris/arch-v32
parent151173e8ce9b95bbbbd7eedb9035cfaffbdb7cb2 (diff)
parent371deb9500831ad1afbf9ea00e373f650deaed2f (diff)
downloadop-kernel-dev-3ed1c478eff8db80e234d5446cb378b503135888.zip
op-kernel-dev-3ed1c478eff8db80e234d5446cb378b503135888.tar.gz
Merge tag 'pm+acpi-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI updates from Rafael J Wysocki: - ARM big.LITTLE cpufreq driver from Viresh Kumar. - exynos5440 cpufreq driver from Amit Daniel Kachhap. - cpufreq core cleanup and code consolidation from Viresh Kumar and Stratos Karafotis. - cpufreq scalability improvement from Nathan Zimmer. - AMD "frequency sensitivity feedback" powersave bias for the ondemand cpufreq governor from Jacob Shin. - cpuidle code consolidation and cleanups from Daniel Lezcano. - ARM OMAP cpuidle fixes from Santosh Shilimkar and Daniel Lezcano. - ACPICA fixes and other improvements from Bob Moore, Jung-uk Kim, Lv Zheng, Yinghai Lu, Tang Chen, Colin Ian King, and Linn Crosetto. - ACPI core updates related to hotplug from Toshi Kani, Paul Bolle, Yasuaki Ishimatsu, and Rafael J Wysocki. - Intel Lynxpoint LPSS (Low-Power Subsystem) support improvements from Rafael J Wysocki and Andy Shevchenko. * tag 'pm+acpi-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (192 commits) cpufreq: Revert incorrect commit 5800043 cpufreq: MAINTAINERS: Add co-maintainer cpuidle: add maintainer entry ACPI / thermal: do not always return THERMAL_TREND_RAISING for active trip points ARM: s3c64xx: cpuidle: use init/exit common routine cpufreq: pxa2xx: initialize variables ACPI: video: correct acpi_video_bus_add error processing SH: cpuidle: use init/exit common routine ARM: S5pv210: compiling issue, ARM_S5PV210_CPUFREQ needs CONFIG_CPU_FREQ_TABLE=y ACPI: Fix wrong parameter passed to memblock_reserve cpuidle: fix comment format pnp: use %*phC to dump small buffers isapnp: remove debug leftovers ARM: imx: cpuidle: use init/exit common routine ARM: davinci: cpuidle: use init/exit common routine ARM: kirkwood: cpuidle: use init/exit common routine ARM: calxeda: cpuidle: use init/exit common routine ARM: tegra: cpuidle: use init/exit common routine for tegra3 ARM: tegra: cpuidle: use init/exit common routine for tegra2 ARM: OMAP4: cpuidle: use init/exit common routine ...
Diffstat (limited to 'arch/cris/arch-v32')
-rw-r--r--arch/cris/arch-v32/mach-a3/Makefile1
-rw-r--r--arch/cris/arch-v32/mach-a3/cpufreq.c152
-rw-r--r--arch/cris/arch-v32/mach-fs/Makefile1
-rw-r--r--arch/cris/arch-v32/mach-fs/cpufreq.c145
4 files changed, 0 insertions, 299 deletions
diff --git a/arch/cris/arch-v32/mach-a3/Makefile b/arch/cris/arch-v32/mach-a3/Makefile
index d366e08..18a2271 100644
--- a/arch/cris/arch-v32/mach-a3/Makefile
+++ b/arch/cris/arch-v32/mach-a3/Makefile
@@ -3,7 +3,6 @@
#
obj-y := dma.o pinmux.o io.o arbiter.o
-obj-$(CONFIG_CPU_FREQ) += cpufreq.o
clean:
diff --git a/arch/cris/arch-v32/mach-a3/cpufreq.c b/arch/cris/arch-v32/mach-a3/cpufreq.c
deleted file mode 100644
index ee391ec..0000000
--- a/arch/cris/arch-v32/mach-a3/cpufreq.c
+++ /dev/null
@@ -1,152 +0,0 @@
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/cpufreq.h>
-#include <hwregs/reg_map.h>
-#include <hwregs/reg_rdwr.h>
-#include <hwregs/clkgen_defs.h>
-#include <hwregs/ddr2_defs.h>
-
-static int
-cris_sdram_freq_notifier(struct notifier_block *nb, unsigned long val,
- void *data);
-
-static struct notifier_block cris_sdram_freq_notifier_block = {
- .notifier_call = cris_sdram_freq_notifier
-};
-
-static struct cpufreq_frequency_table cris_freq_table[] = {
- {0x01, 6000},
- {0x02, 200000},
- {0, CPUFREQ_TABLE_END},
-};
-
-static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)
-{
- reg_clkgen_rw_clk_ctrl clk_ctrl;
- clk_ctrl = REG_RD(clkgen, regi_clkgen, rw_clk_ctrl);
- return clk_ctrl.pll ? 200000 : 6000;
-}
-
-static void cris_freq_set_cpu_state(unsigned int state)
-{
- int i = 0;
- struct cpufreq_freqs freqs;
- reg_clkgen_rw_clk_ctrl clk_ctrl;
- clk_ctrl = REG_RD(clkgen, regi_clkgen, rw_clk_ctrl);
-
-#ifdef CONFIG_SMP
- for_each_present_cpu(i)
-#endif
- {
- freqs.old = cris_freq_get_cpu_frequency(i);
- freqs.new = cris_freq_table[state].frequency;
- freqs.cpu = i;
- }
-
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
-
- local_irq_disable();
-
- /* Even though we may be SMP they will share the same clock
- * so all settings are made on CPU0. */
- if (cris_freq_table[state].frequency == 200000)
- clk_ctrl.pll = 1;
- else
- clk_ctrl.pll = 0;
- REG_WR(clkgen, regi_clkgen, rw_clk_ctrl, clk_ctrl);
-
- local_irq_enable();
-
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-};
-
-static int cris_freq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, &cris_freq_table[0]);
-}
-
-static int cris_freq_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
-{
- unsigned int newstate = 0;
-
- if (cpufreq_frequency_table_target(policy, cris_freq_table,
- target_freq, relation, &newstate))
- return -EINVAL;
-
- cris_freq_set_cpu_state(newstate);
-
- return 0;
-}
-
-static int cris_freq_cpu_init(struct cpufreq_policy *policy)
-{
- int result;
-
- /* cpuinfo and default policy values */
- policy->cpuinfo.transition_latency = 1000000; /* 1ms */
- policy->cur = cris_freq_get_cpu_frequency(0);
-
- result = cpufreq_frequency_table_cpuinfo(policy, cris_freq_table);
- if (result)
- return (result);
-
- cpufreq_frequency_table_get_attr(cris_freq_table, policy->cpu);
-
- return 0;
-}
-
-
-static int cris_freq_cpu_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
-}
-
-
-static struct freq_attr *cris_freq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
-static struct cpufreq_driver cris_freq_driver = {
- .get = cris_freq_get_cpu_frequency,
- .verify = cris_freq_verify,
- .target = cris_freq_target,
- .init = cris_freq_cpu_init,
- .exit = cris_freq_cpu_exit,
- .name = "cris_freq",
- .owner = THIS_MODULE,
- .attr = cris_freq_attr,
-};
-
-static int __init cris_freq_init(void)
-{
- int ret;
- ret = cpufreq_register_driver(&cris_freq_driver);
- cpufreq_register_notifier(&cris_sdram_freq_notifier_block,
- CPUFREQ_TRANSITION_NOTIFIER);
- return ret;
-}
-
-static int
-cris_sdram_freq_notifier(struct notifier_block *nb, unsigned long val,
- void *data)
-{
- int i;
- struct cpufreq_freqs *freqs = data;
- if (val == CPUFREQ_PRECHANGE) {
- reg_ddr2_rw_cfg cfg =
- REG_RD(ddr2, regi_ddr2_ctrl, rw_cfg);
- cfg.ref_interval = (freqs->new == 200000 ? 1560 : 46);
-
- if (freqs->new == 200000)
- for (i = 0; i < 50000; i++);
- REG_WR(bif_core, regi_bif_core, rw_sdram_timing, timing);
- }
- return 0;
-}
-
-
-module_init(cris_freq_init);
diff --git a/arch/cris/arch-v32/mach-fs/Makefile b/arch/cris/arch-v32/mach-fs/Makefile
index d366e08..18a2271 100644
--- a/arch/cris/arch-v32/mach-fs/Makefile
+++ b/arch/cris/arch-v32/mach-fs/Makefile
@@ -3,7 +3,6 @@
#
obj-y := dma.o pinmux.o io.o arbiter.o
-obj-$(CONFIG_CPU_FREQ) += cpufreq.o
clean:
diff --git a/arch/cris/arch-v32/mach-fs/cpufreq.c b/arch/cris/arch-v32/mach-fs/cpufreq.c
deleted file mode 100644
index d92cf70..0000000
--- a/arch/cris/arch-v32/mach-fs/cpufreq.c
+++ /dev/null
@@ -1,145 +0,0 @@
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/cpufreq.h>
-#include <hwregs/reg_map.h>
-#include <arch/hwregs/reg_rdwr.h>
-#include <arch/hwregs/config_defs.h>
-#include <arch/hwregs/bif_core_defs.h>
-
-static int
-cris_sdram_freq_notifier(struct notifier_block *nb, unsigned long val,
- void *data);
-
-static struct notifier_block cris_sdram_freq_notifier_block = {
- .notifier_call = cris_sdram_freq_notifier
-};
-
-static struct cpufreq_frequency_table cris_freq_table[] = {
- {0x01, 6000},
- {0x02, 200000},
- {0, CPUFREQ_TABLE_END},
-};
-
-static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)
-{
- reg_config_rw_clk_ctrl clk_ctrl;
- clk_ctrl = REG_RD(config, regi_config, rw_clk_ctrl);
- return clk_ctrl.pll ? 200000 : 6000;
-}
-
-static void cris_freq_set_cpu_state(unsigned int state)
-{
- int i;
- struct cpufreq_freqs freqs;
- reg_config_rw_clk_ctrl clk_ctrl;
- clk_ctrl = REG_RD(config, regi_config, rw_clk_ctrl);
-
- for_each_possible_cpu(i) {
- freqs.old = cris_freq_get_cpu_frequency(i);
- freqs.new = cris_freq_table[state].frequency;
- freqs.cpu = i;
- }
-
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
-
- local_irq_disable();
-
- /* Even though we may be SMP they will share the same clock
- * so all settings are made on CPU0. */
- if (cris_freq_table[state].frequency == 200000)
- clk_ctrl.pll = 1;
- else
- clk_ctrl.pll = 0;
- REG_WR(config, regi_config, rw_clk_ctrl, clk_ctrl);
-
- local_irq_enable();
-
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-};
-
-static int cris_freq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, &cris_freq_table[0]);
-}
-
-static int cris_freq_target(struct cpufreq_policy *policy,
- unsigned int target_freq, unsigned int relation)
-{
- unsigned int newstate = 0;
-
- if (cpufreq_frequency_table_target
- (policy, cris_freq_table, target_freq, relation, &newstate))
- return -EINVAL;
-
- cris_freq_set_cpu_state(newstate);
-
- return 0;
-}
-
-static int cris_freq_cpu_init(struct cpufreq_policy *policy)
-{
- int result;
-
- /* cpuinfo and default policy values */
- policy->cpuinfo.transition_latency = 1000000; /* 1ms */
- policy->cur = cris_freq_get_cpu_frequency(0);
-
- result = cpufreq_frequency_table_cpuinfo(policy, cris_freq_table);
- if (result)
- return (result);
-
- cpufreq_frequency_table_get_attr(cris_freq_table, policy->cpu);
-
- return 0;
-}
-
-static int cris_freq_cpu_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
-}
-
-static struct freq_attr *cris_freq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
-static struct cpufreq_driver cris_freq_driver = {
- .get = cris_freq_get_cpu_frequency,
- .verify = cris_freq_verify,
- .target = cris_freq_target,
- .init = cris_freq_cpu_init,
- .exit = cris_freq_cpu_exit,
- .name = "cris_freq",
- .owner = THIS_MODULE,
- .attr = cris_freq_attr,
-};
-
-static int __init cris_freq_init(void)
-{
- int ret;
- ret = cpufreq_register_driver(&cris_freq_driver);
- cpufreq_register_notifier(&cris_sdram_freq_notifier_block,
- CPUFREQ_TRANSITION_NOTIFIER);
- return ret;
-}
-
-static int
-cris_sdram_freq_notifier(struct notifier_block *nb, unsigned long val,
- void *data)
-{
- int i;
- struct cpufreq_freqs *freqs = data;
- if (val == CPUFREQ_PRECHANGE) {
- reg_bif_core_rw_sdram_timing timing =
- REG_RD(bif_core, regi_bif_core, rw_sdram_timing);
- timing.cpd = (freqs->new == 200000 ? 0 : 1);
-
- if (freqs->new == 200000)
- for (i = 0; i < 50000; i++) ;
- REG_WR(bif_core, regi_bif_core, rw_sdram_timing, timing);
- }
- return 0;
-}
-
-module_init(cris_freq_init);
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