The new CPU clock type allows the use of generic CPUfreq driver.
Switch Exynos4x12 to using generic cpufreq driver.
This patch also takes care of making ARM_EXYNOS_CPU_FREQ_BOOST_SW
config option depend on cpufreq-dt driver instead of exynos-cpufreq
one and fixes the minor issue present with the old code (support
for 'boost' mode in the exynos-cpufreq driver was enabled for all
supported SoCs even though 'boost' frequency was provided only for
Exynos4x12 ones).
Cc: Tomasz Figa <tomasz.figa@xxxxxxxxx>
Cc: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
Cc: Javier Martinez Canillas <javier.martinez@xxxxxxxxxxxxxxx>
Cc: Thomas Abraham <thomas.ab@xxxxxxxxxxx>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
---
arch/arm/mach-exynos/exynos.c | 14 ++++++++++++++
drivers/cpufreq/Kconfig.arm | 2 +-
drivers/cpufreq/exynos-cpufreq.c | 3 ---
3 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
index 4e13de5..637d862 100644
--- a/arch/arm/mach-exynos/exynos.c
+++ b/arch/arm/mach-exynos/exynos.c
@@ -20,6 +20,7 @@
#include <linux/platform_device.h>
#include <linux/pm_domain.h>
#include <linux/irqchip.h>
+#include <linux/cpufreq-dt.h>
#include <asm/cacheflush.h>
#include <asm/hardware/cache-l2x0.h>
@@ -197,6 +198,12 @@ static void __init exynos_init_irq(void)
exynos_map_pmu();
}
+struct cpufreq_dt_platform_data cpufreq_dt_pd = {
+#ifdef CONFIG_ARM_EXYNOS_CPU_FREQ_BOOST_SW
+ .boost_supported = true,
+#endif
+};
+
static const struct of_device_id exynos_cpufreq_matches[] = {
{ .compatible = "samsung,exynos4210", .data = "cpufreq-dt" },
{ /* sentinel */ }
@@ -207,6 +214,13 @@ static void __init exynos_cpufreq_init(void)
struct device_node *root = of_find_node_by_path("/");
const struct of_device_id *match;
+ if (of_machine_is_compatible("samsung,exynos4212") ||
+ of_machine_is_compatible("samsung,exynos4412")) {
+ platform_device_register_data(NULL, "cpufreq-dt", -1,
+ &cpufreq_dt_pd, sizeof(cpufreq_dt_pd));
+ return;
+ }
+
match = of_match_node(exynos_cpufreq_matches, root);
if (!match) {
platform_device_register_simple("exynos-cpufreq", -1, NULL, 0);
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 1d7ddc5..78cb0b9 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -60,7 +60,7 @@ config ARM_EXYNOS5250_CPUFREQ
config ARM_EXYNOS_CPU_FREQ_BOOST_SW
bool "EXYNOS Frequency Overclocking - Software"
- depends on ARM_EXYNOS_CPUFREQ && THERMAL
+ depends on CPUFREQ_DT && THERMAL
select CPU_FREQ_BOOST_SW
select EXYNOS_THERMAL
help
diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index 2d78f63..e48d4f1 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -125,9 +125,6 @@ static struct cpufreq_driver exynos_driver = {
.init = exynos_cpufreq_cpu_init,
.name = "exynos_cpufreq",
.attr = cpufreq_generic_attr,
-#ifdef CONFIG_ARM_EXYNOS_CPU_FREQ_BOOST_SW
- .boost_supported = true,
-#endif
#ifdef CONFIG_PM
.suspend = cpufreq_generic_suspend,
#endif
--
1.7.9.5
--
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