diff options
Diffstat (limited to 'drivers/crypto/ccree/cc_pm.c')
-rw-r--r-- | drivers/crypto/ccree/cc_pm.c | 60 |
1 files changed, 11 insertions, 49 deletions
diff --git a/drivers/crypto/ccree/cc_pm.c b/drivers/crypto/ccree/cc_pm.c index 24c368b866f6..d39e1664fc7e 100644 --- a/drivers/crypto/ccree/cc_pm.c +++ b/drivers/crypto/ccree/cc_pm.c @@ -15,29 +15,25 @@ #define POWER_DOWN_ENABLE 0x01 #define POWER_DOWN_DISABLE 0x00 -const struct dev_pm_ops ccree_pm = { - SET_RUNTIME_PM_OPS(cc_pm_suspend, cc_pm_resume, NULL) -}; - -int cc_pm_suspend(struct device *dev) +static int cc_pm_suspend(struct device *dev) { struct cc_drvdata *drvdata = dev_get_drvdata(dev); dev_dbg(dev, "set HOST_POWER_DOWN_EN\n"); fini_cc_regs(drvdata); cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_ENABLE); - cc_clk_off(drvdata); + clk_disable_unprepare(drvdata->clk); return 0; } -int cc_pm_resume(struct device *dev) +static int cc_pm_resume(struct device *dev) { int rc; struct cc_drvdata *drvdata = dev_get_drvdata(dev); dev_dbg(dev, "unset HOST_POWER_DOWN_EN\n"); /* Enables the device source clk */ - rc = cc_clk_on(drvdata); + rc = clk_prepare_enable(drvdata->clk); if (rc) { dev_err(dev, "failed getting clock back on. We're toast.\n"); return rc; @@ -62,53 +58,19 @@ int cc_pm_resume(struct device *dev) return 0; } +const struct dev_pm_ops ccree_pm = { + SET_RUNTIME_PM_OPS(cc_pm_suspend, cc_pm_resume, NULL) +}; + int cc_pm_get(struct device *dev) { - int rc = 0; - struct cc_drvdata *drvdata = dev_get_drvdata(dev); - - if (drvdata->pm_on) - rc = pm_runtime_get_sync(dev); + int rc = pm_runtime_get_sync(dev); return (rc == 1 ? 0 : rc); } void cc_pm_put_suspend(struct device *dev) { - struct cc_drvdata *drvdata = dev_get_drvdata(dev); - - if (drvdata->pm_on) { - pm_runtime_mark_last_busy(dev); - pm_runtime_put_autosuspend(dev); - } -} - -bool cc_pm_is_dev_suspended(struct device *dev) -{ - /* check device state using runtime api */ - return pm_runtime_suspended(dev); -} - -int cc_pm_init(struct cc_drvdata *drvdata) -{ - struct device *dev = drvdata_to_dev(drvdata); - - /* must be before the enabling to avoid redundant suspending */ - pm_runtime_set_autosuspend_delay(dev, CC_SUSPEND_TIMEOUT); - pm_runtime_use_autosuspend(dev); - /* set us as active - note we won't do PM ops until cc_pm_go()! */ - return pm_runtime_set_active(dev); -} - -/* enable the PM module*/ -void cc_pm_go(struct cc_drvdata *drvdata) -{ - pm_runtime_enable(drvdata_to_dev(drvdata)); - drvdata->pm_on = true; -} - -void cc_pm_fini(struct cc_drvdata *drvdata) -{ - pm_runtime_disable(drvdata_to_dev(drvdata)); - drvdata->pm_on = false; + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); } |