[PATCH v3 3/5] ARM: Exynos: switch to using generic cpufreq driver for Exynos4x12

Bartlomiej Zolnierkiewicz
2015-07-31T18:50:57Z

The new CPU clock type allows the use of generic CPUfreq driver.
Switch Exynos4x12 to using generic cpufreq driver.

Also make CPUFREQ_DT config option select Exynos thermal driver
if Exynos platform support is enabled.

Please also note that the switch to use the generic cpufreq-dt
driver 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@gmail.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Thomas Abraham <thomas.ab@samsung.com>
Cc: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---
arch/arm/mach-exynos/exynos.c | 2 ++
drivers/cpufreq/Kconfig | 1 +
2 files changed, 3 insertions(+)

diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
index 77ac021..1c47aee 100644
--- a/arch/arm/mach-exynos/exynos.c
+++ b/arch/arm/mach-exynos/exynos.c
@@ -227,6 +227,8 @@ static void __init exynos_init_irq(void)
static const struct of_device_id exynos_cpufreq_matches[] = {
{ .compatible = "samsung,exynos3250", .data = "cpufreq-dt" },
{ .compatible = "samsung,exynos4210", .data = "cpufreq-dt" },
+ { .compatible = "samsung,exynos4212", .data = "cpufreq-dt" },
+ { .compatible = "samsung,exynos4412", .data = "cpufreq-dt" },
{ .compatible = "samsung,exynos5250", .data = "cpufreq-dt" },
{ /* sentinel */ }
};
diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index 659879a..bf6d596 100644
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -191,6 +191,7 @@ config CPUFREQ_DT
# if CPU_THERMAL is on and THERMAL=m, CPUFREQ_DT cannot be =y:
depends on !CPU_THERMAL || THERMAL
select PM_OPP
+ select EXYNOS_THERMAL if ARCH_EXYNOS
help
This adds a generic DT based cpufreq driver for frequency management.
It supports both uniprocessor (UP) and symmetric multiprocessor (SMP)
--
1.9.1