Commit d2347382 authored by Guennadi Liakhovetski's avatar Guennadi Liakhovetski Committed by Simon Horman

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: default avatarGuennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: default avatarSimon Horman <horms+renesas@verge.net.au>
parent 73107925
...@@ -169,6 +169,8 @@ config MACH_KZM9D ...@@ -169,6 +169,8 @@ config MACH_KZM9D
config MACH_KZM9G config MACH_KZM9G
bool "KZM-A9-GT board" bool "KZM-A9-GT board"
depends on ARCH_SH73A0 depends on ARCH_SH73A0
select ARCH_HAS_CPUFREQ
select ARCH_HAS_OPP
select ARCH_REQUIRE_GPIOLIB select ARCH_REQUIRE_GPIOLIB
select REGULATOR_FIXED_VOLTAGE if REGULATOR select REGULATOR_FIXED_VOLTAGE if REGULATOR
select SND_SOC_AK4642 if SND_SIMPLE_CARD select SND_SOC_AK4642 if SND_SIMPLE_CARD
......
...@@ -963,6 +963,8 @@ static const struct of_dev_auxdata sh73a0_auxdata_lookup[] __initconst = { ...@@ -963,6 +963,8 @@ static const struct of_dev_auxdata sh73a0_auxdata_lookup[] __initconst = {
void __init sh73a0_add_standard_devices_dt(void) 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 */ /* clocks are setup late during boot in the case of DT */
sh73a0_clock_init(); sh73a0_clock_init();
...@@ -970,6 +972,9 @@ void __init sh73a0_add_standard_devices_dt(void) ...@@ -970,6 +972,9 @@ void __init sh73a0_add_standard_devices_dt(void)
ARRAY_SIZE(sh73a0_devices_dt)); ARRAY_SIZE(sh73a0_devices_dt));
of_platform_populate(NULL, of_default_bus_match_table, of_platform_populate(NULL, of_default_bus_match_table,
sh73a0_auxdata_lookup, NULL); sh73a0_auxdata_lookup, NULL);
/* Instantiate cpufreq-cpu0 */
platform_device_register_full(&devinfo);
} }
static const char *sh73a0_boards_compat_dt[] __initdata = { static const char *sh73a0_boards_compat_dt[] __initdata = {
......
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