ARM: sunxi: Register cpufreq-dt for sun[45678]i

On sun[45678]i, we have one cluster of identical cores sharing a
clock, which is ideal for using cpufreq-dt. Register a platform
device for cpufreq-dt.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c
index d4bb2395d39c..1bc811a74a9f 100644
--- a/arch/arm/mach-sunxi/sunxi.c
+++ b/arch/arm/mach-sunxi/sunxi.c
@@ -13,9 +13,15 @@
 #include <linux/clk-provider.h>
 #include <linux/clocksource.h>
 #include <linux/init.h>
+#include <linux/platform_device.h>
 
 #include <asm/mach/arch.h>
 
+static void __init sunxi_dt_cpufreq_init(void)
+{
+        platform_device_register_simple("cpufreq-dt", -1, NULL, 0);
+}
+
 static const char * const sunxi_board_dt_compat[] = {
         "allwinner,sun4i-a10",
         "allwinner,sun5i-a10s",
@@ -25,6 +31,7 @@ static const char * const sunxi_board_dt_compat[] = {
 
 DT_MACHINE_START(SUNXI_DT, "Allwinner A1X (Device Tree)")
         .dt_compat      = sunxi_board_dt_compat,
+        .init_late      = sunxi_dt_cpufreq_init,
 MACHINE_END
 
 static const char * const sun6i_board_dt_compat[] = {
@@ -45,6 +52,7 @@ static void __init sun6i_timer_init(void)
 DT_MACHINE_START(SUN6I_DT, "Allwinner sun6i (A31) Family")
         .init_time      = sun6i_timer_init,
         .dt_compat      = sun6i_board_dt_compat,
+        .init_late      = sunxi_dt_cpufreq_init,
 MACHINE_END
 
 static const char * const sun7i_board_dt_compat[] = {
@@ -54,6 +62,7 @@ static const char * const sun7i_board_dt_compat[] = {
 
 DT_MACHINE_START(SUN7I_DT, "Allwinner sun7i (A20) Family")
         .dt_compat      = sun7i_board_dt_compat,
+        .init_late      = sunxi_dt_cpufreq_init,
 MACHINE_END
 
 static const char * const sun8i_board_dt_compat[] = {
@@ -63,6 +72,7 @@ static const char * const sun8i_board_dt_compat[] = {
 
 DT_MACHINE_START(SUN8I_DT, "Allwinner sun8i (A23) Family")
         .dt_compat      = sun8i_board_dt_compat,
+        .init_late      = sunxi_dt_cpufreq_init,
 MACHINE_END
 
 static const char * const sun9i_board_dt_compat[] = {