diff options
| author | Victoria Milhoan <vicki.milhoan@freescale.com> | 2014-12-18 14:06:50 -0700 |
|---|---|---|
| committer | Nitin Garg <nitin.garg@freescale.com> | 2015-04-14 14:01:52 -0500 |
| commit | 6076bef8fbb039b728198356d242229339948d3c (patch) | |
| tree | 8add74f717f97a98ae627f3895c3ad40158d7967 /drivers/crypto | |
| parent | ced85dff789524172fa7535df6dfd4e9c2003813 (diff) | |
MLK-10036 Freescale CAAM: Add support for DSM with Mega/Fast mix on
This patch allows CAAM to be enabled as a wakeup source for the
Mega/Fast mix domain. If CAAM is enabled as a wakeup source, it
will continue to be powered on across Deep Sleep Mode (DSM). This
allows CAAM to be functional after the system resumes from DSM.
Signed-off-by: Victoria Milhoan <vicki.milhoan@freescale.com>
(cherry picked from commit 290744e3b40a563319324e234fa5a65b49fd4d82)
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/caam/jr.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c index e139c9dcbab8..54b326d721c2 100644 --- a/drivers/crypto/caam/jr.c +++ b/drivers/crypto/caam/jr.c @@ -517,9 +517,39 @@ static int caam_jr_probe(struct platform_device *pdev) atomic_set(&jrpriv->tfm_count, 0); + device_init_wakeup(&pdev->dev, 1); + device_set_wakeup_enable(&pdev->dev, false); + + return 0; +} + +#ifdef CONFIG_PM +static int caam_jr_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct caam_drv_private_jr *jrpriv = platform_get_drvdata(pdev); + + if (device_may_wakeup(&pdev->dev)) + enable_irq_wake(jrpriv->irq); + return 0; } +static int caam_jr_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct caam_drv_private_jr *jrpriv = platform_get_drvdata(pdev); + + if (device_may_wakeup(&pdev->dev)) + disable_irq_wake(jrpriv->irq); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(caam_jr_pm_ops, caam_jr_suspend, + caam_jr_resume); +#endif + static struct of_device_id caam_jr_match[] = { { .compatible = "fsl,sec-v4.0-job-ring", @@ -536,6 +566,9 @@ static struct platform_driver caam_jr_driver = { .name = "caam_jr", .owner = THIS_MODULE, .of_match_table = caam_jr_match, +#ifdef CONFIG_PM + .pm = &caam_jr_pm_ops, +#endif }, .probe = caam_jr_probe, .remove = caam_jr_remove, |