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Commit 8459293c authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Rafael J. Wysocki
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ARM: shmobile: r8a7740: add A4S pm domain support 



This patch adds basic A4S pm domain support.
Now, below devices can be controled by PM

Common-SHwy, Common-HPB, BSC, MFI, MMFROM, HS-SHwy,
SYS-HPB, INTCA, DBSC, DDRPHY (Logic),
ATAPI, GbEther, AXI-bus

Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: default avatarMagnus Damm <damm@opensource.se>
Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
parent 444c5ed8

arch/arm/mach-shmobile/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -41,6 +41,7 @@ obj-$(CONFIG_SUSPEND) += suspend.o 
obj-$(CONFIG_CPU_IDLE)		+= cpuidle.o

obj-$(CONFIG_ARCH_SHMOBILE)	+= pm-rmobile.o

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

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

obj-$(CONFIG_ARCH_R8A7779)	+= pm-r8a7779.o



# Board objects

arch/arm/mach-shmobile/include/mach/r8a7740.h

+6 −0
Original line number Diff line number Diff line
@@ -19,6 +19,8 @@ 
#ifndef __ASM_R8A7740_H__

#define __ASM_R8A7740_H__



#include <mach/pm-rmobile.h>



/*

 * MD_CKx pin

 */
@@ -604,4 +606,8 @@ enum { 
	SHDMA_SLAVE_USBHS_RX,

};



#ifdef CONFIG_PM

extern struct rmobile_pm_domain r8a7740_pd_a4s;

#endif /* CONFIG_PM */



#endif /* __ASM_R8A7740_H__ */

arch/arm/mach-shmobile/pm-r8a7740.c

0 → 100644
+30 −0
Original line number Diff line number Diff line 
/*

 * r8a7740 power management support

 *

 * Copyright (C) 2012  Renesas Solutions Corp.

 * Copyright (C) 2012  Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

 *

 * 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 <mach/pm-rmobile.h>



#ifdef CONFIG_PM

static int r8a7740_pd_a4s_suspend(void)

{

	/*

	 * The A4S domain contains the CPU core and therefore it should

	 * only be turned off if the CPU is in use.

	 */

	return -EBUSY;

}



struct rmobile_pm_domain r8a7740_pd_a4s = {

	.genpd.name	= "A4S",

	.bit_shift	= 10,

	.gov		= &pm_domain_always_on_gov,

	.no_debug	= true,

	.suspend	= r8a7740_pd_a4s_suspend,

};

#endif /* CONFIG_PM */

arch/arm/mach-shmobile/setup-r8a7740.c

+5 −0
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ 
#include <linux/dma-mapping.h>

#include <mach/dma-register.h>

#include <mach/r8a7740.h>

#include <mach/pm-rmobile.h>

#include <mach/common.h>

#include <mach/irqs.h>

#include <asm/mach-types.h>
@@ -671,6 +672,10 @@ void __init r8a7740_add_standard_devices(void) 
	r8a7740_i2c_workaround(&i2c0_device);

	r8a7740_i2c_workaround(&i2c1_device);



	/* PM domain */

	rmobile_init_pm_domain(&r8a7740_pd_a4s);



	/* add devices */

	platform_add_devices(r8a7740_early_devices,

			    ARRAY_SIZE(r8a7740_early_devices));

	platform_add_devices(r8a7740_late_devices,