Messages in this thread | | | Date | Thu, 17 Mar 2011 11:31:16 +0100 | From | Lothar Waßmann <> | Subject | Re: [PATCHv3 3/3] ARM: mx51: Add support for low power suspend on MX51 |
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Hi,
Dinh.Nguyen@freescale.com writes: > From: Dinh Nguyen <Dinh.Nguyen@freescale.com> > > Adds initial low power suspend functionality to MX51. > Supports "mem" and "standby" modes. > > Tested on mx51-babbage. > > Signed-off-by: Dinh Nguyen <Dinh.Nguyen@freescale.com> > --- > arch/arm/mach-mx5/Makefile | 1 + > arch/arm/mach-mx5/pm-imx51.c | 69 ++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 70 insertions(+), 0 deletions(-) > create mode 100644 arch/arm/mach-mx5/pm-imx51.c > > diff --git a/arch/arm/mach-mx5/Makefile b/arch/arm/mach-mx5/Makefile > index 0b9338c..787cb80 100644 > --- a/arch/arm/mach-mx5/Makefile > +++ b/arch/arm/mach-mx5/Makefile > @@ -6,6 +6,7 @@ > obj-y := cpu.o mm.o clock-mx51-mx53.o devices.o ehci.o system.o > obj-$(CONFIG_SOC_IMX50) += mm-mx50.o > > +obj-$(CONFIG_PM) += pm-imx51.o > obj-$(CONFIG_CPU_FREQ_IMX) += cpu_op-mx51.o > obj-$(CONFIG_MACH_MX51_BABBAGE) += board-mx51_babbage.o > obj-$(CONFIG_MACH_MX51_3DS) += board-mx51_3ds.o > diff --git a/arch/arm/mach-mx5/pm-imx51.c b/arch/arm/mach-mx5/pm-imx51.c > new file mode 100644 > index 0000000..4a1d915 > --- /dev/null > +++ b/arch/arm/mach-mx5/pm-imx51.c > @@ -0,0 +1,69 @@ > +/* > + * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved. > + * > + * The code contained herein is licensed under the GNU General Public > + * License. You may obtain a copy of the GNU General Public License > + * Version 2 or later at the following locations: > + * > + * http://www.opensource.org/licenses/gpl-license.html > + * http://www.gnu.org/copyleft/gpl.html > + */ > +#include <linux/suspend.h> > +#include <linux/clk.h> > +#include <asm/mach/map.h> > +#include <asm/cacheflush.h> > +#include <asm/tlb.h> > +#include <mach/system.h> > +#include "crm_regs.h" > + > +struct clk *gpc_dvfs_clk; > + static?
> +static int mx5_suspend_enter(suspend_state_t state) > +{ > + if (gpc_dvfs_clk == NULL) > + gpc_dvfs_clk = clk_get(NULL, "gpc_dvfs_clk"); > + > + clk_enable(gpc_dvfs_clk); > error check?
Lothar WaÃmann -- ___________________________________________________________
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