ARM: shmobile: sh73a0: add CPUFreq support
This patch enables the use of the generic cpufreq-cpu0 driver on sh73a0.
Providing a regulator, a list of OPPs in DT, combined with a virtual
cpufreq-cpu0 platform device and a clock, attached to it is everything,
the cpufreq-cpu0 driver needs. The first sh73a0 platform, implementing
such CPUFreq support is kzm9g-reference.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c
index 3bc33a5..3acb45a 100644
--- a/arch/arm/mach-shmobile/setup-sh73a0.c
+++ b/arch/arm/mach-shmobile/setup-sh73a0.c
@@ -963,6 +963,8 @@
void __init sh73a0_add_standard_devices_dt(void)
{
+ struct platform_device_info devinfo = { .name = "cpufreq-cpu0", .id = -1, };
+
/* clocks are setup late during boot in the case of DT */
sh73a0_clock_init();
@@ -970,6 +972,9 @@
ARRAY_SIZE(sh73a0_devices_dt));
of_platform_populate(NULL, of_default_bus_match_table,
sh73a0_auxdata_lookup, NULL);
+
+ /* Instantiate cpufreq-cpu0 */
+ platform_device_register_full(&devinfo);
}
static const char *sh73a0_boards_compat_dt[] __initdata = {