40 	struct hwrng rng;  member
47 static int stm32_rng_read(struct hwrng *rng, void *data, size_t max, bool wait)  in stm32_rng_read()  argument
50 	    container_of(rng, struct stm32_rng_private, rng);  in stm32_rng_read()
54 	pm_runtime_get_sync((struct device *) priv->rng.priv);  in stm32_rng_read()
59 		/* care of initial delay time when enabling rng	*/  in stm32_rng_read()
66 				dev_err((struct device *)priv->rng.priv,  in stm32_rng_read()
73 					"bad RNG status - %x\n", sr))  in stm32_rng_read()
85 	pm_runtime_mark_last_busy((struct device *) priv->rng.priv);  in stm32_rng_read()
86 	pm_runtime_put_sync_autosuspend((struct device *) priv->rng.priv);  in stm32_rng_read()
91 static int stm32_rng_init(struct hwrng *rng)  in stm32_rng_init()  argument
94 	    container_of(rng, struct stm32_rng_private, rng);  in stm32_rng_init()
113 static void stm32_rng_cleanup(struct hwrng *rng)  in stm32_rng_cleanup()  argument
116 	    container_of(rng, struct stm32_rng_private, rng);  in stm32_rng_cleanup()
157 	priv->rng.name = dev_driver_string(dev),  in stm32_rng_probe()
159 	priv->rng.init = stm32_rng_init,  in stm32_rng_probe()
160 	priv->rng.cleanup = stm32_rng_cleanup,  in stm32_rng_probe()
162 	priv->rng.read = stm32_rng_read,  in stm32_rng_probe()
163 	priv->rng.priv = (unsigned long) dev;  in stm32_rng_probe()
169 	return devm_hwrng_register(dev, &priv->rng);  in stm32_rng_probe()
184 	stm32_rng_cleanup(&priv->rng);  in stm32_rng_runtime_suspend()
193 	return stm32_rng_init(&priv->rng);  in stm32_rng_runtime_resume()
207 		.compatible = "st,stm32-rng",
215 		.name = "stm32-rng",
227 MODULE_DESCRIPTION("STMicroelectronics STM32 RNG device driver");