A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 03:27:44 -04:00
Code Issues Projects Releases Packages Wiki Activity

Merge branch 'pm-opp'

Browse source 
* pm-opp:
  PM / OPP: passing NULL to PTR_ERR()
  PM / OPP: Move cpu specific code to opp/cpu.c
  PM / OPP: Move opp core to its own directory
  PM / OPP: Prefix exported opp routines with dev_pm_opp_
  PM / OPP: Rename opp init/free table routines
  PM / OPP: reuse of_parse_phandle()
This commit is contained in:
Rafael J. Wysocki 2015-11-02 00:54:37 +01:00
commit 394f7164e6
15 changed files with 473 additions and 479 deletions
Download patch file Download diff file Expand all files Collapse all files

1
drivers/cpufreq/Makefile
View file

@ -1,6 +1,5 @@
# CPUfreq core
obj-$(CONFIG_CPU_FREQ) += cpufreq.o freq_table.o
obj-$(CONFIG_PM_OPP) += cpufreq_opp.o
# CPUfreq stats
obj-$(CONFIG_CPU_FREQ_STAT) += cpufreq_stats.o

2
drivers/cpufreq/arm_big_little.h
View file

@ -28,7 +28,7 @@ struct cpufreq_arm_bL_ops {
/*
* This must set opp table for cpu_dev in a similar way as done by
* of_init_opp_table().
* dev_pm_opp_of_add_table().
*/
int (*init_opp_table)(struct device *cpu_dev);

4
drivers/cpufreq/arm_big_little_dt.c
View file

@ -54,7 +54,7 @@ static int dt_init_opp_table(struct device *cpu_dev)
return -ENOENT;
}
ret = of_init_opp_table(cpu_dev);
ret = dev_pm_opp_of_add_table(cpu_dev);
of_node_put(np);
return ret;
@ -82,7 +82,7 @@ static struct cpufreq_arm_bL_ops dt_bL_ops = {
.name = "dt-bl",
.get_transition_latency = dt_get_transition_latency,
.init_opp_table = dt_init_opp_table,
.free_opp_table = of_free_opp_table,
.free_opp_table = dev_pm_opp_of_remove_table,
};
static int generic_bL_probe(struct platform_device *pdev)

10
drivers/cpufreq/cpufreq-dt.c
View file

@ -216,7 +216,7 @@ static int cpufreq_init(struct cpufreq_policy *policy)
}
/* Get OPP-sharing information from "operating-points-v2" bindings */
ret = of_get_cpus_sharing_opps(cpu_dev, policy->cpus);
ret = dev_pm_opp_of_get_sharing_cpus(cpu_dev, policy->cpus);
if (ret) {
/*
* operating-points-v2 not supported, fallback to old method of
@ -238,7 +238,7 @@ static int cpufreq_init(struct cpufreq_policy *policy)
*
* OPPs might be populated at runtime, don't check for error here
*/
of_cpumask_init_opp_table(policy->cpus);
dev_pm_opp_of_cpumask_add_table(policy->cpus);
/*
* But we need OPP table to function so if it is not there let's
@ -261,7 +261,7 @@ static int cpufreq_init(struct cpufreq_policy *policy)
* OPP tables are initialized only for policy->cpu, do it for
* others as well.
*/
ret = set_cpus_sharing_opps(cpu_dev, policy->cpus);
ret = dev_pm_opp_set_sharing_cpus(cpu_dev, policy->cpus);
if (ret)
dev_err(cpu_dev, "%s: failed to mark OPPs as shared: %d\n",
__func__, ret);
@ -368,7 +368,7 @@ out_free_cpufreq_table:
out_free_priv:
kfree(priv);
out_free_opp:
of_cpumask_free_opp_table(policy->cpus);
dev_pm_opp_of_cpumask_remove_table(policy->cpus);
out_node_put:
of_node_put(np);
out_put_reg_clk:
@ -385,7 +385,7 @@ static int cpufreq_exit(struct cpufreq_policy *policy)
cpufreq_cooling_unregister(priv->cdev);
dev_pm_opp_free_cpufreq_table(priv->cpu_dev, &policy->freq_table);
of_cpumask_free_opp_table(policy->related_cpus);
dev_pm_opp_of_cpumask_remove_table(policy->related_cpus);
clk_put(policy->clk);
if (!IS_ERR(priv->cpu_reg))
regulator_put(priv->cpu_reg);

114
drivers/cpufreq/cpufreq_opp.c
View file

@ -1,114 +0,0 @@
/*
* Generic OPP helper interface for CPUFreq drivers
*
* Copyright (C) 2009-2014 Texas Instruments Incorporated.
* Nishanth Menon
* Romit Dasgupta
* Kevin Hilman
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/cpufreq.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/errno.h>
#include <linux/export.h>
#include <linux/kernel.h>
#include <linux/pm_opp.h>
#include <linux/rcupdate.h>
#include <linux/slab.h>
/**
* dev_pm_opp_init_cpufreq_table() - create a cpufreq table for a device
* @dev: device for which we do this operation
* @table: Cpufreq table returned back to caller
*
* Generate a cpufreq table for a provided device- this assumes that the
* opp list is already initialized and ready for usage.
*
* This function allocates required memory for the cpufreq table. It is
* expected that the caller does the required maintenance such as freeing
* the table as required.
*
* Returns -EINVAL for bad pointers, -ENODEV if the device is not found, -ENOMEM
* if no memory available for the operation (table is not populated), returns 0
* if successful and table is populated.
*
* WARNING: It is important for the callers to ensure refreshing their copy of
* the table if any of the mentioned functions have been invoked in the interim.
*
* Locking: The internal device_opp and opp structures are RCU protected.
* Since we just use the regular accessor functions to access the internal data
* structures, we use RCU read lock inside this function. As a result, users of
* this function DONOT need to use explicit locks for invoking.
*/
int dev_pm_opp_init_cpufreq_table(struct device *dev,
struct cpufreq_frequency_table **table)
{
struct dev_pm_opp *opp;
struct cpufreq_frequency_table *freq_table = NULL;
int i, max_opps, ret = 0;
unsigned long rate;
rcu_read_lock();
max_opps = dev_pm_opp_get_opp_count(dev);
if (max_opps <= 0) {
ret = max_opps ? max_opps : -ENODATA;
goto out;
}
freq_table = kcalloc((max_opps + 1), sizeof(*freq_table), GFP_ATOMIC);
if (!freq_table) {
ret = -ENOMEM;
goto out;
}
for (i = 0, rate = 0; i < max_opps; i++, rate++) {
/* find next rate */
opp = dev_pm_opp_find_freq_ceil(dev, &rate);
if (IS_ERR(opp)) {
ret = PTR_ERR(opp);
goto out;
}
freq_table[i].driver_data = i;
freq_table[i].frequency = rate / 1000;
/* Is Boost/turbo opp ? */
if (dev_pm_opp_is_turbo(opp))
freq_table[i].flags = CPUFREQ_BOOST_FREQ;
}
freq_table[i].driver_data = i;
freq_table[i].frequency = CPUFREQ_TABLE_END;
*table = &freq_table[0];
out:
rcu_read_unlock();
if (ret)
kfree(freq_table);
return ret;
}
EXPORT_SYMBOL_GPL(dev_pm_opp_init_cpufreq_table);
/**
* dev_pm_opp_free_cpufreq_table() - free the cpufreq table
* @dev: device for which we do this operation
* @table: table to free
*
* Free up the table allocated by dev_pm_opp_init_cpufreq_table
*/
void dev_pm_opp_free_cpufreq_table(struct device *dev,
struct cpufreq_frequency_table **table)
{
if (!table)
return;
kfree(*table);
*table = NULL;
}
EXPORT_SYMBOL_GPL(dev_pm_opp_free_cpufreq_table);

6
drivers/cpufreq/exynos5440-cpufreq.c
View file

@ -360,7 +360,7 @@ static int exynos_cpufreq_probe(struct platform_device *pdev)
goto err_put_node;
}
ret = of_init_opp_table(dvfs_info->dev);
ret = dev_pm_opp_of_add_table(dvfs_info->dev);
if (ret) {
dev_err(dvfs_info->dev, "failed to init OPP table: %d\n", ret);
goto err_put_node;
@ -424,7 +424,7 @@ static int exynos_cpufreq_probe(struct platform_device *pdev)
err_free_table:
dev_pm_opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table);
err_free_opp:
of_free_opp_table(dvfs_info->dev);
dev_pm_opp_of_remove_table(dvfs_info->dev);
err_put_node:
of_node_put(np);
dev_err(&pdev->dev, "%s: failed initialization\n", __func__);
@ -435,7 +435,7 @@ static int exynos_cpufreq_remove(struct platform_device *pdev)
{
cpufreq_unregister_driver(&exynos_driver);
dev_pm_opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table);
of_free_opp_table(dvfs_info->dev);
dev_pm_opp_of_remove_table(dvfs_info->dev);
return 0;
}

6
drivers/cpufreq/imx6q-cpufreq.c
View file

@ -236,7 +236,7 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev)
*/
num = dev_pm_opp_get_opp_count(cpu_dev);
if (num < 0) {
ret = of_init_opp_table(cpu_dev);
ret = dev_pm_opp_of_add_table(cpu_dev);
if (ret < 0) {
dev_err(cpu_dev, "failed to init OPP table: %d\n", ret);
goto put_reg;
@ -346,7 +346,7 @@ free_freq_table:
dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table);
out_free_opp:
if (free_opp)
of_free_opp_table(cpu_dev);
dev_pm_opp_of_remove_table(cpu_dev);
put_reg:
if (!IS_ERR(arm_reg))
regulator_put(arm_reg);
@ -378,7 +378,7 @@ static int imx6q_cpufreq_remove(struct platform_device *pdev)
cpufreq_unregister_driver(&imx6q_cpufreq_driver);
dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table);
if (free_opp)
of_free_opp_table(cpu_dev);
dev_pm_opp_of_remove_table(cpu_dev);
regulator_put(arm_reg);
if (!IS_ERR(pu_reg))
regulator_put(pu_reg);

6
drivers/cpufreq/mt8173-cpufreq.c
View file

@ -344,7 +344,7 @@ static int mtk_cpu_dvfs_info_init(struct mtk_cpu_dvfs_info *info, int cpu)
/* Both presence and absence of sram regulator are valid cases. */
sram_reg = regulator_get_exclusive(cpu_dev, "sram");
ret = of_init_opp_table(cpu_dev);
ret = dev_pm_opp_of_add_table(cpu_dev);
if (ret) {
pr_warn("no OPP table for cpu%d\n", cpu);
goto out_free_resources;
@ -378,7 +378,7 @@ static int mtk_cpu_dvfs_info_init(struct mtk_cpu_dvfs_info *info, int cpu)
return 0;
out_free_opp_table:
of_free_opp_table(cpu_dev);
dev_pm_opp_of_remove_table(cpu_dev);
out_free_resources:
if (!IS_ERR(proc_reg))
@ -404,7 +404,7 @@ static void mtk_cpu_dvfs_info_release(struct mtk_cpu_dvfs_info *info)
if (!IS_ERR(info->inter_clk))
clk_put(info->inter_clk);
of_free_opp_table(info->cpu_dev);
dev_pm_opp_of_remove_table(info->cpu_dev);
}
static int mtk_cpufreq_init(struct cpufreq_policy *policy)