crypto: omap-des - use runtime_pm autosuspend for clock handling
Convert the driver to use autosuspend for runtime_pm. This boosts the performance, and optimizes the power consumption for the driver. By default, the timeout value for autosuspend is set to one second. Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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@ -78,6 +78,8 @@
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#define FLAGS_INIT BIT(4)
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#define FLAGS_BUSY BIT(6)
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#define DEFAULT_AUTOSUSPEND_DELAY 1000
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struct omap_des_ctx {
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struct omap_des_dev *dd;
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@ -506,8 +508,10 @@ static void omap_des_finish_req(struct omap_des_dev *dd, int err)
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pr_debug("err: %d\n", err);
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pm_runtime_put(dd->dev);
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crypto_finalize_cipher_request(dd->engine, req, err);
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pm_runtime_mark_last_busy(dd->dev);
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pm_runtime_put_autosuspend(dd->dev);
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}
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static int omap_des_crypt_dma_stop(struct omap_des_dev *dd)
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@ -1044,8 +1048,10 @@ static int omap_des_probe(struct platform_device *pdev)
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}
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dd->phys_base = res->start;
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pm_runtime_use_autosuspend(dev);
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pm_runtime_set_autosuspend_delay(dev, DEFAULT_AUTOSUSPEND_DELAY);
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pm_runtime_enable(dev);
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pm_runtime_irq_safe(dev);
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err = pm_runtime_get_sync(dev);
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if (err < 0) {
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pm_runtime_put_noidle(dev);
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