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author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-01-27 11:14:02 -0500 |
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committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-01-27 11:14:02 -0500 |
commit | 6c02b7b1610f873888af20f291c07730889ff0f9 (patch) | |
tree | 1b33e6642cc81605b8d37c0bda0abff0ba64fa2d /arch/powerpc/sysdev/fsl_lbc.c | |
parent | 7a7546b377bdaa25ac77f33d9433c59f259b9688 (diff) | |
parent | dcd6c92267155e70a94b3927bce681ce74b80d1f (diff) |
Merge commit 'v3.3-rc1' into stable/for-linus-fixes-3.3
* commit 'v3.3-rc1': (9775 commits)
Linux 3.3-rc1
x86, syscall: Need __ARCH_WANT_SYS_IPC for 32 bits
qnx4: don't leak ->BitMap on late failure exits
qnx4: reduce the insane nesting in qnx4_checkroot()
qnx4: di_fname is an array, for crying out loud...
KEYS: Permit key_serial() to be called with a const key pointer
keys: fix user_defined key sparse messages
ima: fix cred sparse warning
uml: fix compile for x86-64
MPILIB: Add a missing ENOMEM check
tpm: fix (ACPI S3) suspend regression
nvme: fix merge error due to change of 'make_request_fn' fn type
xen: using EXPORT_SYMBOL requires including export.h
gpio: tps65910: Use correct offset for gpio initialization
acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec
intel_idle: Split up and provide per CPU initialization func
ACPI processor: Remove unneeded variable passed by acpi_processor_hotadd_init V2
tg3: Fix single-vector MSI-X code
openvswitch: Fix multipart datapath dumps.
ipv6: fix per device IP snmp counters
...
Diffstat (limited to 'arch/powerpc/sysdev/fsl_lbc.c')
-rw-r--r-- | arch/powerpc/sysdev/fsl_lbc.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/fsl_lbc.c b/arch/powerpc/sysdev/fsl_lbc.c index d5c3c90ee698..483126d7b3c0 100644 --- a/arch/powerpc/sysdev/fsl_lbc.c +++ b/arch/powerpc/sysdev/fsl_lbc.c @@ -332,6 +332,38 @@ err: return ret; } +#ifdef CONFIG_SUSPEND + +/* save lbc registers */ +static int fsl_lbc_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct fsl_lbc_ctrl *ctrl = dev_get_drvdata(&pdev->dev); + struct fsl_lbc_regs __iomem *lbc = ctrl->regs; + + ctrl->saved_regs = kmalloc(sizeof(struct fsl_lbc_regs), GFP_KERNEL); + if (!ctrl->saved_regs) + return -ENOMEM; + + _memcpy_fromio(ctrl->saved_regs, lbc, sizeof(struct fsl_lbc_regs)); + return 0; +} + +/* restore lbc registers */ +static int fsl_lbc_resume(struct platform_device *pdev) +{ + struct fsl_lbc_ctrl *ctrl = dev_get_drvdata(&pdev->dev); + struct fsl_lbc_regs __iomem *lbc = ctrl->regs; + + if (ctrl->saved_regs) { + _memcpy_toio(lbc, ctrl->saved_regs, + sizeof(struct fsl_lbc_regs)); + kfree(ctrl->saved_regs); + ctrl->saved_regs = NULL; + } + return 0; +} +#endif /* CONFIG_SUSPEND */ + static const struct of_device_id fsl_lbc_match[] = { { .compatible = "fsl,elbc", }, { .compatible = "fsl,pq3-localbus", }, @@ -346,6 +378,10 @@ static struct platform_driver fsl_lbc_ctrl_driver = { .of_match_table = fsl_lbc_match, }, .probe = fsl_lbc_ctrl_probe, +#ifdef CONFIG_SUSPEND + .suspend = fsl_lbc_suspend, + .resume = fsl_lbc_resume, +#endif }; static int __init fsl_lbc_init(void) |