40 	struct omap_rom_rng *ddata;  in omap3_rom_rng_read()  local
44 	ddata = (struct omap_rom_rng *)rng->priv;  in omap3_rom_rng_read()
46 	r = pm_runtime_get_sync(ddata->dev);  in omap3_rom_rng_read()
48 		pm_runtime_put_noidle(ddata->dev);  in omap3_rom_rng_read()
54 	r = ddata->rom_rng_call(ptr, 4, RNG_GEN_HW);  in omap3_rom_rng_read()
60 	pm_runtime_mark_last_busy(ddata->dev);  in omap3_rom_rng_read()
61 	pm_runtime_put_autosuspend(ddata->dev);  in omap3_rom_rng_read()
68 	struct omap_rom_rng *ddata;  in omap_rom_rng_runtime_suspend()  local
71 	ddata = dev_get_drvdata(dev);  in omap_rom_rng_runtime_suspend()
73 	r = ddata->rom_rng_call(0, 0, RNG_RESET);  in omap_rom_rng_runtime_suspend()
77 	clk_disable_unprepare(ddata->clk);  in omap_rom_rng_runtime_suspend()
84 	struct omap_rom_rng *ddata;  in omap_rom_rng_runtime_resume()  local
87 	ddata = dev_get_drvdata(dev);  in omap_rom_rng_runtime_resume()
89 	r = clk_prepare_enable(ddata->clk);  in omap_rom_rng_runtime_resume()
93 	r = ddata->rom_rng_call(0, 0, RNG_GEN_PRNG_HW_INIT);  in omap_rom_rng_runtime_resume()
95 		clk_disable_unprepare(ddata->clk);  in omap_rom_rng_runtime_resume()
106 	struct omap_rom_rng *ddata = data;  in omap_rom_rng_finish()  local
108 	pm_runtime_dont_use_autosuspend(ddata->dev);  in omap_rom_rng_finish()
109 	pm_runtime_disable(ddata->dev);  in omap_rom_rng_finish()
114 	struct omap_rom_rng *ddata;  in omap3_rom_rng_probe()  local
117 	ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);  in omap3_rom_rng_probe()
118 	if (!ddata)  in omap3_rom_rng_probe()
121 	ddata->dev = &pdev->dev;  in omap3_rom_rng_probe()
122 	ddata->ops.priv = (unsigned long)ddata;  in omap3_rom_rng_probe()
123 	ddata->ops.name = "omap3-rom";  in omap3_rom_rng_probe()
124 	ddata->ops.read = of_device_get_match_data(&pdev->dev);  in omap3_rom_rng_probe()
125 	ddata->ops.quality = 900;  in omap3_rom_rng_probe()
126 	if (!ddata->ops.read) {  in omap3_rom_rng_probe()
131 	dev_set_drvdata(ddata->dev, ddata);  in omap3_rom_rng_probe()
133 	ddata->rom_rng_call = pdev->dev.platform_data;  in omap3_rom_rng_probe()
134 	if (!ddata->rom_rng_call) {  in omap3_rom_rng_probe()
135 		dev_err(ddata->dev, "rom_rng_call is NULL\n");  in omap3_rom_rng_probe()
139 	ddata->clk = devm_clk_get(ddata->dev, "ick");  in omap3_rom_rng_probe()
140 	if (IS_ERR(ddata->clk)) {  in omap3_rom_rng_probe()
141 		dev_err(ddata->dev, "unable to get RNG clock\n");  in omap3_rom_rng_probe()
142 		return PTR_ERR(ddata->clk);  in omap3_rom_rng_probe()
149 	ret = devm_add_action_or_reset(ddata->dev, omap_rom_rng_finish,  in omap3_rom_rng_probe()
150 				       ddata);  in omap3_rom_rng_probe()
154 	return devm_hwrng_register(ddata->dev, &ddata->ops);  in omap3_rom_rng_probe()