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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-03 15:48:06 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-03 15:48:06 -0700 |
commit | f66c83d059d1ed90968caa81d401f160912b063a (patch) | |
tree | 8558803eadc5c29038de16d88b02b4f6176850ac /drivers/scsi/ufs/ufshcd-pltfrm.c | |
parent | d472d9d98b463dd7a04f2bcdeafe4261686ce6ab (diff) | |
parent | 1f962ebcdfa15cede59e9edb299d1330949eec92 (diff) | |
download | blackbird-op-linux-f66c83d059d1ed90968caa81d401f160912b063a.tar.gz blackbird-op-linux-f66c83d059d1ed90968caa81d401f160912b063a.zip |
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull first round of SCSI updates from James Bottomley:
"This patch set is a set of driver updates (ufs, zfcp, lpfc, mpt2/3sas,
qla4xxx, qla2xxx [adding support for ISP8044 + other things]).
We also have a new driver: esas2r which has a number of static checker
problems, but which I expect to resolve over the -rc course of 3.12
under the new driver exception.
We also have the error return that were discussed at LSF"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (118 commits)
[SCSI] sg: push file descriptor list locking down to per-device locking
[SCSI] sg: checking sdp->detached isn't protected when open
[SCSI] sg: no need sg_open_exclusive_lock
[SCSI] sg: use rwsem to solve race during exclusive open
[SCSI] scsi_debug: fix logical block provisioning support when unmap_alignment != 0
[SCSI] scsi_debug: fix endianness bug in sdebug_build_parts()
[SCSI] qla2xxx: Update the driver version to 8.06.00.08-k.
[SCSI] qla2xxx: print MAC via %pMR.
[SCSI] qla2xxx: Correction to message ids.
[SCSI] qla2xxx: Correctly print out/in mailbox registers.
[SCSI] qla2xxx: Add a new interface to update versions.
[SCSI] qla2xxx: Move queue depth ramp down message to i/o debug level.
[SCSI] qla2xxx: Select link initialization option bits from current operating mode.
[SCSI] qla2xxx: Add loopback IDC-TIME-EXTEND aen handling support.
[SCSI] qla2xxx: Set default critical temperature value in cases when ISPFX00 firmware doesn't provide it
[SCSI] qla2xxx: QLAFX00 make over temperature AEN handling informational, add log for normal temperature AEN
[SCSI] qla2xxx: Correct Interrupt Register offset for ISPFX00
[SCSI] qla2xxx: Remove handling of Shutdown Requested AEN from qlafx00_process_aen().
[SCSI] qla2xxx: Send all AENs for ISPFx00 to above layers.
[SCSI] qla2xxx: Add changes in initialization for ISPFX00 cards with BIOS
...
Diffstat (limited to 'drivers/scsi/ufs/ufshcd-pltfrm.c')
-rw-r--r-- | drivers/scsi/ufs/ufshcd-pltfrm.c | 57 |
1 files changed, 48 insertions, 9 deletions
diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c index c42db40d4e51..5e4623225422 100644 --- a/drivers/scsi/ufs/ufshcd-pltfrm.c +++ b/drivers/scsi/ufs/ufshcd-pltfrm.c @@ -34,6 +34,7 @@ */ #include <linux/platform_device.h> +#include <linux/pm_runtime.h> #include "ufshcd.h" @@ -87,6 +88,40 @@ static int ufshcd_pltfrm_resume(struct device *dev) #define ufshcd_pltfrm_resume NULL #endif +#ifdef CONFIG_PM_RUNTIME +static int ufshcd_pltfrm_runtime_suspend(struct device *dev) +{ + struct ufs_hba *hba = dev_get_drvdata(dev); + + if (!hba) + return 0; + + return ufshcd_runtime_suspend(hba); +} +static int ufshcd_pltfrm_runtime_resume(struct device *dev) +{ + struct ufs_hba *hba = dev_get_drvdata(dev); + + if (!hba) + return 0; + + return ufshcd_runtime_resume(hba); +} +static int ufshcd_pltfrm_runtime_idle(struct device *dev) +{ + struct ufs_hba *hba = dev_get_drvdata(dev); + + if (!hba) + return 0; + + return ufshcd_runtime_idle(hba); +} +#else /* !CONFIG_PM_RUNTIME */ +#define ufshcd_pltfrm_runtime_suspend NULL +#define ufshcd_pltfrm_runtime_resume NULL +#define ufshcd_pltfrm_runtime_idle NULL +#endif /* CONFIG_PM_RUNTIME */ + /** * ufshcd_pltfrm_probe - probe routine of the driver * @pdev: pointer to Platform device handle @@ -102,15 +137,8 @@ static int ufshcd_pltfrm_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!mem_res) { - dev_err(dev, "Memory resource not available\n"); - err = -ENODEV; - goto out; - } - mmio_base = devm_ioremap_resource(dev, mem_res); if (IS_ERR(mmio_base)) { - dev_err(dev, "memory map failed\n"); err = PTR_ERR(mmio_base); goto out; } @@ -122,14 +150,22 @@ static int ufshcd_pltfrm_probe(struct platform_device *pdev) goto out; } + pm_runtime_set_active(&pdev->dev); + pm_runtime_enable(&pdev->dev); + err = ufshcd_init(dev, &hba, mmio_base, irq); if (err) { dev_err(dev, "Intialization failed\n"); - goto out; + goto out_disable_rpm; } platform_set_drvdata(pdev, hba); + return 0; + +out_disable_rpm: + pm_runtime_disable(&pdev->dev); + pm_runtime_set_suspended(&pdev->dev); out: return err; } @@ -144,7 +180,7 @@ static int ufshcd_pltfrm_remove(struct platform_device *pdev) { struct ufs_hba *hba = platform_get_drvdata(pdev); - disable_irq(hba->irq); + pm_runtime_get_sync(&(pdev)->dev); ufshcd_remove(hba); return 0; } @@ -157,6 +193,9 @@ static const struct of_device_id ufs_of_match[] = { static const struct dev_pm_ops ufshcd_dev_pm_ops = { .suspend = ufshcd_pltfrm_suspend, .resume = ufshcd_pltfrm_resume, + .runtime_suspend = ufshcd_pltfrm_runtime_suspend, + .runtime_resume = ufshcd_pltfrm_runtime_resume, + .runtime_idle = ufshcd_pltfrm_runtime_idle, }; static struct platform_driver ufshcd_pltfrm_driver = { |