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82 lines
2.3 KiB
Diff
82 lines
2.3 KiB
Diff
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From 1ffdfbcd42dbb87f2841e45c0719a3fbcb2fe926 Mon Sep 17 00:00:00 2001
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From: Victoria Milhoan <vicki.milhoan@freescale.com>
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Date: Thu, 18 Dec 2014 14:06:50 -0700
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Subject: [PATCH] MLK-10036 crypto: caam - add support for DSM with Mega/Fast
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mix on
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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This patch allows CAAM to be enabled as a wakeup source for the
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Mega/Fast mix domain. If CAAM is enabled as a wakeup source, it
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will continue to be powered on across Deep Sleep Mode (DSM). This
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allows CAAM to be functional after the system resumes from DSM.
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Signed-off-by: Victoria Milhoan <vicki.milhoan@freescale.com>
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(cherry picked from commit 290744e3b40a563319324e234fa5a65b49fd4d82)
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Signed-off-by: Dan Douglass <dan.douglass@freescale.com>
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Signed-off-by: Vipul Kumar <vipul_kumar@mentor.com>
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(cherry picked from commit 0bf9c6f84f1d74d9e6d9384c4b11bbdf9301c94e)
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Changed commit headline prefix.
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Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
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---
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drivers/crypto/caam/jr.c | 33 +++++++++++++++++++++++++++++++++
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1 file changed, 33 insertions(+)
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--- a/drivers/crypto/caam/jr.c
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+++ b/drivers/crypto/caam/jr.c
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@@ -561,11 +561,41 @@ static int caam_jr_probe(struct platform
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atomic_set(&jrpriv->tfm_count, 0);
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+ device_init_wakeup(&pdev->dev, 1);
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+ device_set_wakeup_enable(&pdev->dev, false);
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+
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register_algs(jrdev->parent);
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return 0;
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}
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+#ifdef CONFIG_PM
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+static int caam_jr_suspend(struct device *dev)
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+{
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+ struct platform_device *pdev = to_platform_device(dev);
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+ struct caam_drv_private_jr *jrpriv = platform_get_drvdata(pdev);
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+
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+ if (device_may_wakeup(&pdev->dev))
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+ enable_irq_wake(jrpriv->irq);
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+
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+ return 0;
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+}
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+
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+static int caam_jr_resume(struct device *dev)
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+{
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+ struct platform_device *pdev = to_platform_device(dev);
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+ struct caam_drv_private_jr *jrpriv = platform_get_drvdata(pdev);
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+
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+ if (device_may_wakeup(&pdev->dev))
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+ disable_irq_wake(jrpriv->irq);
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+
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+ return 0;
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+}
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+
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+static SIMPLE_DEV_PM_OPS(caam_jr_pm_ops, caam_jr_suspend,
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+ caam_jr_resume);
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+#endif
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+
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static const struct of_device_id caam_jr_match[] = {
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{
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.compatible = "fsl,sec-v4.0-job-ring",
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@@ -581,6 +611,9 @@ static struct platform_driver caam_jr_dr
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.driver = {
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.name = "caam_jr",
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.of_match_table = caam_jr_match,
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+#ifdef CONFIG_PM
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+ .pm = &caam_jr_pm_ops,
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+#endif
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},
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.probe = caam_jr_probe,
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.remove = caam_jr_remove,
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