31 	struct hwrng rng;  member
38 static int stm32_rng_read(struct hwrng *rng, void *data, size_t max, bool wait)  in stm32_rng_read()  argument
41 	    container_of(rng, struct stm32_rng_private, rng);  in stm32_rng_read()
45 	pm_runtime_get_sync((struct device *) priv->rng.priv);  in stm32_rng_read()
50 		/* care of initial delay time when enabling rng	*/  in stm32_rng_read()
57 				dev_err((struct device *)priv->rng.priv,  in stm32_rng_read()
64 					"bad RNG status - %x\n", sr))  in stm32_rng_read()
76 	pm_runtime_mark_last_busy((struct device *) priv->rng.priv);  in stm32_rng_read()
77 	pm_runtime_put_sync_autosuspend((struct device *) priv->rng.priv);  in stm32_rng_read()
82 static int stm32_rng_init(struct hwrng *rng)  in stm32_rng_init()  argument
85 	    container_of(rng, struct stm32_rng_private, rng);  in stm32_rng_init()
104 static void stm32_rng_cleanup(struct hwrng *rng)  in stm32_rng_cleanup()  argument
107 	    container_of(rng, struct stm32_rng_private, rng);  in stm32_rng_cleanup()
148 	priv->rng.name = dev_driver_string(dev);  in stm32_rng_probe()
150 	priv->rng.init = stm32_rng_init;  in stm32_rng_probe()
151 	priv->rng.cleanup = stm32_rng_cleanup;  in stm32_rng_probe()
153 	priv->rng.read = stm32_rng_read;  in stm32_rng_probe()
154 	priv->rng.priv = (unsigned long) dev;  in stm32_rng_probe()
155 	priv->rng.quality = 900;  in stm32_rng_probe()
161 	return devm_hwrng_register(dev, &priv->rng);  in stm32_rng_probe()
176 	stm32_rng_cleanup(&priv->rng);  in stm32_rng_runtime_suspend()
185 	return stm32_rng_init(&priv->rng);  in stm32_rng_runtime_resume()
199 		.compatible = "st,stm32-rng",
207 		.name = "stm32-rng",
219 MODULE_DESCRIPTION("STMicroelectronics STM32 RNG device driver");