hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge tag 'ux500-core-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/soc 

From Linus Walleij:
Ux500 core patches for the v3.14 series:
- Enable PRINTK_TIME
- Enable suspend with WFI

* tag 'ux500-core-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
  ARM: ux500: Enable system suspend with WFI support
  ARM: ux500: turn on PRINTK_TIME in u8500_defconfig

Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Olof Johansson 2014-01-08 22:10:21 -08:00
parent ced015aaa4 ead9e2936b
commit 51f37801b4
2 changed files with 28 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm/configs/u8500_defconfig
View File

@ -119,6 +119,7 @@ CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y CONFIG_ROOT_NFS=y
CONFIG_NLS_CODEPAGE_437=y CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y CONFIG_NLS_ISO8859_1=y
CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_INFO=y CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_FS=y CONFIG_DEBUG_FS=y
CONFIG_MAGIC_SYSRQ=y CONFIG_MAGIC_SYSRQ=y

27
arch/arm/mach-ux500/pm.c
View File

@ -3,6 +3,8 @@
* Author: Rickard Andersson <rickard.andersson@stericsson.com> for * Author: Rickard Andersson <rickard.andersson@stericsson.com> for
* ST-Ericsson. * ST-Ericsson.
* Author: Daniel Lezcano <daniel.lezcano@linaro.org> for Linaro. * Author: Daniel Lezcano <daniel.lezcano@linaro.org> for Linaro.
* Author: Ulf Hansson <ulf.hansson@linaro.org> for Linaro.
*
* License terms: GNU General Public License (GPL) version 2 * License terms: GNU General Public License (GPL) version 2
* *
*/ */
@ -11,6 +13,7 @@
#include <linux/irqchip/arm-gic.h> #include <linux/irqchip/arm-gic.h>
#include <linux/delay.h> #include <linux/delay.h>
#include <linux/io.h> #include <linux/io.h>
#include <linux/suspend.h>
#include <linux/platform_data/arm-ux500-pm.h> #include <linux/platform_data/arm-ux500-pm.h>
#include "db8500-regs.h" #include "db8500-regs.h"
@ -152,6 +155,27 @@ int prcmu_copy_gic_settings(void)
return 0; return 0;
} }
#ifdef CONFIG_SUSPEND
static int ux500_suspend_enter(suspend_state_t state)
{
cpu_do_idle();
return 0;
}
static int ux500_suspend_valid(suspend_state_t state)
{
return state == PM_SUSPEND_MEM || state == PM_SUSPEND_STANDBY;
}
static const struct platform_suspend_ops ux500_suspend_ops = {
.enter = ux500_suspend_enter,
.valid = ux500_suspend_valid,
};
#define UX500_SUSPEND_OPS (&ux500_suspend_ops)
#else
#define UX500_SUSPEND_OPS NULL
#endif
void __init ux500_pm_init(u32 phy_base, u32 size) void __init ux500_pm_init(u32 phy_base, u32 size)
{ {
prcmu_base = ioremap(phy_base, size); prcmu_base = ioremap(phy_base, size);
@ -164,4 +188,7 @@ void __init ux500_pm_init(u32 phy_base, u32 size)
* This will make sure that the GIC is correctly configured. * This will make sure that the GIC is correctly configured.
*/ */
prcmu_gic_recouple(); prcmu_gic_recouple();
/* Set up ux500 suspend callbacks. */
suspend_set_ops(UX500_SUSPEND_OPS);
} }