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ipq806x: support independent core clocks in cpufreq with kernel 4.9+

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Add back support for the independent_clocks definition that has been
removed between kernel 4.4 and 4.9 by upstream commits
eb96924acddc709db58221c210ca05cd9effb1df and
e86eee6bc2aaa6b3637f6497b26beee09a91bde9

* extend the new cpufreq_dt_platform_data definition in cpufreq-dt.h
* revert the removal of its usage in cpufreq-dt.c
* use new cpufreq-dt.h in qcom-cpufreq.c

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
This commit is contained in:
Hannu Nyman 2017-03-16 15:32:16 +02:00 committed by John Crispin
parent ef4ca01d6f
commit 3f9eadf599
2 changed files with 57 additions and 46 deletions
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46
target/linux/ipq806x/patches-4.9/0046-cpufreq-qcom-Remove-platform-data.patch
View file

@ -1,46 +0,0 @@
From f3a327717565cadc8ce5c148860ce0baeb4fbe20 Mon Sep 17 00:00:00 2001
From: Georgi Djakov <georgi.djakov@linaro.org>
Date: Thu, 14 Jul 2016 14:48:21 +0300
Subject: [PATCH 46/69] cpufreq: qcom: Remove platform data
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
---
drivers/cpufreq/qcom-cpufreq.c | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)
--- a/drivers/cpufreq/qcom-cpufreq.c
+++ b/drivers/cpufreq/qcom-cpufreq.c
@@ -20,7 +20,6 @@
#include <linux/platform_device.h>
#include <linux/pm_opp.h>
#include <linux/slab.h>
-#include <linux/cpufreq-dt.h>
static void __init get_krait_bin_format_a(int *speed, int *pvs, int *pvs_ver)
{
@@ -168,12 +167,6 @@ static int __init qcom_cpufreq_populate_
static int __init qcom_cpufreq_driver_init(void)
{
- struct cpufreq_dt_platform_data pdata = { .independent_clocks = true };
- struct platform_device_info devinfo = {
- .name = "cpufreq-dt",
- .data = &pdata,
- .size_data = sizeof(pdata),
- };
struct device *cpu_dev;
struct device_node *np;
int ret;
@@ -196,9 +189,10 @@ static int __init qcom_cpufreq_driver_in
if (ret)
return ret;
- return PTR_ERR_OR_ZERO(platform_device_register_full(&devinfo));
+ return PTR_ERR_OR_ZERO(platform_device_register_simple("cpufreq-dt", -1,
+ NULL, 0));
}
-module_init(qcom_cpufreq_driver_init);
+late_initcall(qcom_cpufreq_driver_init);
MODULE_DESCRIPTION("Qualcomm CPUfreq driver");
MODULE_LICENSE("GPL v2");

57
target/linux/ipq806x/patches-4.9/0046-cpufreq-qcom-independent-core-clocks.patch Normal file
View file

@ -0,0 +1,57 @@
ipq806x: support independent core clocks with kernel 4.9+
Add back support for the independent_clocks definition that has been
removed between kernel 4.4 and 4.9 by upstream commits
eb96924acddc709db58221c210ca05cd9effb1df and
e86eee6bc2aaa6b3637f6497b26beee09a91bde9
* extend the new cpufreq_dt_platform_data definition in cpufreq-dt.h
* use new cpufreq-dt.h in qcom-cpufreq.c
Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
--- a/drivers/cpufreq/cpufreq-dt.h
+++ b/drivers/cpufreq/cpufreq-dt.h
@@ -14,6 +14,7 @@
struct cpufreq_dt_platform_data {
bool have_governor_per_policy;
+ bool independent_clocks;
};
#endif /* __CPUFREQ_DT_H__ */
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -221,7 +221,10 @@ static int cpufreq_init(struct cpufreq_p
}
if (fallback) {
- cpumask_setall(policy->cpus);
+ struct cpufreq_dt_platform_data *pd = cpufreq_get_driver_data();
+
+ if (!pd || !pd->independent_clocks)
+ cpumask_setall(policy->cpus);
/*
* OPP tables are initialized only for policy->cpu, do it for
@@ -376,6 +379,8 @@ static int dt_cpufreq_probe(struct platf
if (data && data->have_governor_per_policy)
dt_cpufreq_driver.flags |= CPUFREQ_HAVE_GOVERNOR_PER_POLICY;
+ dt_cpufreq_driver.driver_data = dev_get_platdata(&pdev->dev);
+
ret = cpufreq_register_driver(&dt_cpufreq_driver);
if (ret)
dev_err(&pdev->dev, "failed register driver: %d\n", ret);
--- a/drivers/cpufreq/qcom-cpufreq.c
+++ b/drivers/cpufreq/qcom-cpufreq.c
@@ -20,7 +20,7 @@
#include <linux/platform_device.h>
#include <linux/pm_opp.h>
#include <linux/slab.h>
-#include <linux/cpufreq-dt.h>
+#include "cpufreq-dt.h"
static void __init get_krait_bin_format_a(int *speed, int *pvs, int *pvs_ver)
{