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Commit 418f2a8c authored by Tero Kristo's avatar Tero Kristo Committed by Herbert Xu
Browse files

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: default avatarTero Kristo <t-kristo@ti.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent a636fdce

drivers/crypto/omap-des.c

+8 −2
Original line number Diff line number Diff line
@@ -78,6 +78,8 @@ 
#define FLAGS_INIT		BIT(4)

#define FLAGS_BUSY		BIT(6)



#define DEFAULT_AUTOSUSPEND_DELAY	1000



struct omap_des_ctx {

	struct omap_des_dev *dd;
@@ -506,8 +508,10 @@ static void omap_des_finish_req(struct omap_des_dev *dd, int err) 


	pr_debug("err: %d\n", err);



	pm_runtime_put(dd->dev);

	crypto_finalize_cipher_request(dd->engine, req, err);



	pm_runtime_mark_last_busy(dd->dev);

	pm_runtime_put_autosuspend(dd->dev);

}



static int omap_des_crypt_dma_stop(struct omap_des_dev *dd)
@@ -1044,8 +1048,10 @@ static int omap_des_probe(struct platform_device *pdev) 
	}

	dd->phys_base = res->start;



	pm_runtime_use_autosuspend(dev);

	pm_runtime_set_autosuspend_delay(dev, DEFAULT_AUTOSUSPEND_DELAY);



	pm_runtime_enable(dev);

	pm_runtime_irq_safe(dev);

	err = pm_runtime_get_sync(dev);

	if (err < 0) {

		pm_runtime_put_noidle(dev);