Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 06e32c91 authored by Gaku Inami's avatar Gaku Inami Committed by Simon Horman
Browse files

ARM: shmobile: add cpufreq-cpu0 driver for common SH-Mobile 



I add a new file(cpufreq.c) for the following reasons.
- Registration of platform_device must be unified in SH-Mobile.
- We can't create a node of cpufreq drivers into device tree.
  (Because cpufreq driver is virtual device.)

Signed-off-by: default avatarGaku Inami <gaku.inami.xw@bp.renesas.com>
Acked-by: default avatarMagnus Damm <damm@opensource.se>
Signed-off-by: default avatarSimon Horman <horms+renesas@verge.net.au>
parent 7171511e

arch/arm/mach-shmobile/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -48,6 +48,7 @@ obj-$(CONFIG_ARCH_SH7372) += entry-intc.o 
# PM objects

obj-$(CONFIG_SUSPEND)		+= suspend.o

obj-$(CONFIG_CPU_IDLE)		+= cpuidle.o

obj-$(CONFIG_CPU_FREQ)		+= cpufreq.o

obj-$(CONFIG_ARCH_SH7372)	+= pm-sh7372.o sleep-sh7372.o pm-rmobile.o

obj-$(CONFIG_ARCH_SH73A0)	+= pm-sh73a0.o

obj-$(CONFIG_ARCH_R8A7740)	+= pm-r8a7740.o pm-rmobile.o

arch/arm/mach-shmobile/cpufreq.c

0 → 100644
+31 −0
Original line number Diff line number Diff line 
/*

 * CPUFreq support code for SH-Mobile ARM

 *

 *  Copyright (C) 2014 Gaku Inami

 *

 * This file is subject to the terms and conditions of the GNU General Public

 * License.  See the file "COPYING" in the main directory of this archive

 * for more details.

 */



#include <linux/of.h>

#include <linux/of_device.h>

#include <linux/platform_device.h>



int __init shmobile_cpufreq_init(void)

{

	struct device_node *np;



	np = of_cpu_device_node_get(0);

	if (np == NULL) {

		pr_err("failed to find cpu0 node\n");

		return 0;

	}



	if (of_get_property(np, "operating-points", NULL))

		platform_device_register_simple("cpufreq-cpu0", -1, NULL, 0);



	of_node_put(np);



	return 0;

}

arch/arm/mach-shmobile/include/mach/common.h

+7 −0
Original line number Diff line number Diff line
@@ -45,12 +45,19 @@ int shmobile_cpuidle_init(void); 
static inline int shmobile_cpuidle_init(void) { return 0; }

#endif



#ifdef CONFIG_CPU_FREQ

int shmobile_cpufreq_init(void);

#else

static inline int shmobile_cpufreq_init(void) { return 0; }

#endif



extern void __iomem *shmobile_scu_base;



static inline void __init shmobile_init_late(void)

{

	shmobile_suspend_init();

	shmobile_cpuidle_init();

	shmobile_cpufreq_init();

}



#endif /* __ARCH_MACH_COMMON_H */