121 	u32	(*data_present)(struct omap_rng_dev *priv);
122 	int	(*init)(struct omap_rng_dev *priv);
123 	void	(*cleanup)(struct omap_rng_dev *priv);
132 static inline u32 omap_rng_read(struct omap_rng_dev *priv, u16 reg)  in omap_rng_read()  argument
134 	return __raw_readl(priv->base + priv->pdata->regs[reg]);  in omap_rng_read()
137 static inline void omap_rng_write(struct omap_rng_dev *priv, u16 reg,  in omap_rng_write()  argument
140 	__raw_writel(val, priv->base + priv->pdata->regs[reg]);  in omap_rng_write()
145 	struct omap_rng_dev *priv;  in omap_rng_data_present()  local
148 	priv = (struct omap_rng_dev *)rng->priv;  in omap_rng_data_present()
151 		data = priv->pdata->data_present(priv);  in omap_rng_data_present()
166 	struct omap_rng_dev *priv;  in omap_rng_data_read()  local
169 	priv = (struct omap_rng_dev *)rng->priv;  in omap_rng_data_read()
170 	data_size = priv->pdata->data_size;  in omap_rng_data_read()
173 		data[i] = omap_rng_read(priv, RNG_OUTPUT_L_REG + i);  in omap_rng_data_read()
175 	if (priv->pdata->regs[RNG_INTACK_REG])  in omap_rng_data_read()
176 		omap_rng_write(priv, RNG_INTACK_REG, RNG_REG_INTACK_RDY_MASK);  in omap_rng_data_read()
182 	struct omap_rng_dev *priv;  in omap_rng_init()  local
184 	priv = (struct omap_rng_dev *)rng->priv;  in omap_rng_init()
185 	return priv->pdata->init(priv);  in omap_rng_init()
190 	struct omap_rng_dev *priv;  in omap_rng_cleanup()  local
192 	priv = (struct omap_rng_dev *)rng->priv;  in omap_rng_cleanup()
193 	priv->pdata->cleanup(priv);  in omap_rng_cleanup()
204 static inline u32 omap2_rng_data_present(struct omap_rng_dev *priv)  in omap2_rng_data_present()  argument
206 	return omap_rng_read(priv, RNG_STATUS_REG) ? 0 : 1;  in omap2_rng_data_present()
209 static int omap2_rng_init(struct omap_rng_dev *priv)  in omap2_rng_init()  argument
211 	omap_rng_write(priv, RNG_SYSCONFIG_REG, 0x1);  in omap2_rng_init()
215 static void omap2_rng_cleanup(struct omap_rng_dev *priv)  in omap2_rng_cleanup()  argument
217 	omap_rng_write(priv, RNG_SYSCONFIG_REG, 0x0);  in omap2_rng_cleanup()
229 static inline u32 omap4_rng_data_present(struct omap_rng_dev *priv)  in omap4_rng_data_present()  argument
231 	return omap_rng_read(priv, RNG_STATUS_REG) & RNG_REG_STATUS_RDY;  in omap4_rng_data_present()
234 static int omap4_rng_init(struct omap_rng_dev *priv)  in omap4_rng_init()  argument
239 	if (omap_rng_read(priv, RNG_CONTROL_REG) & RNG_CONTROL_ENABLE_TRNG_MASK)  in omap4_rng_init()
244 	omap_rng_write(priv, RNG_CONFIG_REG, val);  in omap4_rng_init()
246 	omap_rng_write(priv, RNG_FRODETUNE_REG, 0x0);  in omap4_rng_init()
247 	omap_rng_write(priv, RNG_FROENABLE_REG, RNG_REG_FROENABLE_MASK);  in omap4_rng_init()
250 	omap_rng_write(priv, RNG_ALARMCNT_REG, val);  in omap4_rng_init()
254 	omap_rng_write(priv, RNG_CONTROL_REG, val);  in omap4_rng_init()
259 static void omap4_rng_cleanup(struct omap_rng_dev *priv)  in omap4_rng_cleanup()  argument
263 	val = omap_rng_read(priv, RNG_CONTROL_REG);  in omap4_rng_cleanup()
265 	omap_rng_write(priv, RNG_CONTROL_REG, val);  in omap4_rng_cleanup()
270 	struct omap_rng_dev *priv = dev_id;  in omap4_rng_irq()  local
279 	omap_rng_write(priv, RNG_ALARMMASK_REG, 0x0);  in omap4_rng_irq()
280 	omap_rng_write(priv, RNG_ALARMSTOP_REG, 0x0);  in omap4_rng_irq()
282 	fro_enable = omap_rng_read(priv, RNG_FROENABLE_REG);  in omap4_rng_irq()
284 	fro_detune = fro_detune | omap_rng_read(priv, RNG_FRODETUNE_REG);  in omap4_rng_irq()
287 	omap_rng_write(priv, RNG_FRODETUNE_REG, fro_detune);  in omap4_rng_irq()
288 	omap_rng_write(priv, RNG_FROENABLE_REG, fro_enable);  in omap4_rng_irq()
290 	omap_rng_write(priv, RNG_INTACK_REG, RNG_REG_INTACK_SHUTDOWN_OFLO_MASK);  in omap4_rng_irq()
316 static int of_get_omap_rng_device_details(struct omap_rng_dev *priv,  in of_get_omap_rng_device_details()  argument
328 	priv->pdata = match->data;  in of_get_omap_rng_device_details()
339 				       IRQF_TRIGGER_NONE, dev_name(dev), priv);  in of_get_omap_rng_device_details()
345 		omap_rng_write(priv, RNG_INTMASK_REG, RNG_SHUTDOWN_OFLO_MASK);  in of_get_omap_rng_device_details()
366 	struct omap_rng_dev *priv;  in omap_rng_probe()  local
371 	priv = devm_kzalloc(dev, sizeof(struct omap_rng_dev), GFP_KERNEL);  in omap_rng_probe()
372 	if (!priv)  in omap_rng_probe()
375 	omap_rng_ops.priv = (unsigned long)priv;  in omap_rng_probe()
376 	platform_set_drvdata(pdev, priv);  in omap_rng_probe()
377 	priv->dev = dev;  in omap_rng_probe()
380 	priv->base = devm_ioremap_resource(dev, res);  in omap_rng_probe()
381 	if (IS_ERR(priv->base)) {  in omap_rng_probe()
382 		ret = PTR_ERR(priv->base);  in omap_rng_probe()
389 	ret = (dev->of_node) ? of_get_omap_rng_device_details(priv, pdev) :  in omap_rng_probe()
390 				get_omap_rng_device_details(priv);  in omap_rng_probe()
399 		 omap_rng_read(priv, RNG_REV_REG));  in omap_rng_probe()
404 	priv->base = NULL;  in omap_rng_probe()
413 	struct omap_rng_dev *priv = platform_get_drvdata(pdev);  in omap_rng_remove()  local
417 	priv->pdata->cleanup(priv);  in omap_rng_remove()
427 	struct omap_rng_dev *priv = dev_get_drvdata(dev);  in omap_rng_suspend()  local
429 	priv->pdata->cleanup(priv);  in omap_rng_suspend()
437 	struct omap_rng_dev *priv = dev_get_drvdata(dev);  in omap_rng_resume()  local
440 	priv->pdata->init(priv);  in omap_rng_resume()