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

arch/arm/mach-shmobile/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -169,6 +169,8 @@ config MACH_KZM9D 
config MACH_KZM9G

	bool "KZM-A9-GT board"

	depends on ARCH_SH73A0

	select ARCH_HAS_CPUFREQ

	select ARCH_HAS_OPP

	select ARCH_REQUIRE_GPIOLIB

	select REGULATOR_FIXED_VOLTAGE if REGULATOR

	select SND_SOC_AK4642 if SND_SIMPLE_CARD

arch/arm/mach-shmobile/setup-sh73a0.c

+5 −0
Original line number Diff line number Diff line
@@ -963,6 +963,8 @@ static const struct of_dev_auxdata sh73a0_auxdata_lookup[] __initconst = { 


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 @@ void __init sh73a0_add_standard_devices_dt(void) 
			     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 = {