39 	rc = tps65217_set_bits(tps65217_bl->tps, TPS65217_REG_WLEDCTRL1,  in tps65217_bl_enable()
43 		dev_err(tps65217_bl->dev,  in tps65217_bl_enable()
48 	tps65217_bl->is_enabled = true;  in tps65217_bl_enable()
50 	dev_dbg(tps65217_bl->dev, "backlight enabled\n");  in tps65217_bl_enable()
59 	rc = tps65217_clear_bits(tps65217_bl->tps,  in tps65217_bl_disable()
64 		dev_err(tps65217_bl->dev,  in tps65217_bl_disable()
69 	tps65217_bl->is_enabled = false;  in tps65217_bl_disable()
71 	dev_dbg(tps65217_bl->dev, "backlight disabled\n");  in tps65217_bl_disable()
80 	int brightness = backlight_get_brightness(bl);  in tps65217_bl_update_status()  local
82 	if (brightness > 0) {  in tps65217_bl_update_status()
83 		rc = tps65217_reg_write(tps65217_bl->tps,  in tps65217_bl_update_status()
85 					brightness - 1,  in tps65217_bl_update_status()
88 			dev_err(tps65217_bl->dev,  in tps65217_bl_update_status()
89 				"failed to set brightness level: %d\n", rc);  in tps65217_bl_update_status()
93 		dev_dbg(tps65217_bl->dev, "brightness set to %d\n", brightness);  in tps65217_bl_update_status()
95 		if (!tps65217_bl->is_enabled)  in tps65217_bl_update_status()
118 	switch (pdata->isel) {  in tps65217_bl_hw_init()
121 		rc = tps65217_clear_bits(tps65217_bl->tps,  in tps65217_bl_hw_init()
126 			dev_err(tps65217_bl->dev,  in tps65217_bl_hw_init()
132 		dev_dbg(tps65217_bl->dev, "selected ISET1 current level\n");  in tps65217_bl_hw_init()
138 		rc = tps65217_set_bits(tps65217_bl->tps, TPS65217_REG_WLEDCTRL1,  in tps65217_bl_hw_init()
142 			dev_err(tps65217_bl->dev,  in tps65217_bl_hw_init()
148 		dev_dbg(tps65217_bl->dev, "selected ISET2 current level\n");  in tps65217_bl_hw_init()
152 	default:  in tps65217_bl_hw_init()
153 		dev_err(tps65217_bl->dev,  in tps65217_bl_hw_init()
154 			"invalid value for current level: %d\n", pdata->isel);  in tps65217_bl_hw_init()
155 		return -EINVAL;  in tps65217_bl_hw_init()
159 	rc = tps65217_set_bits(tps65217_bl->tps,  in tps65217_bl_hw_init()
162 			pdata->fdim,  in tps65217_bl_hw_init()
165 		dev_err(tps65217_bl->dev,  in tps65217_bl_hw_init()
178 	struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent);  in tps65217_bl_parse_dt()
183 	node = of_get_child_by_name(tps->dev->of_node, "backlight");  in tps65217_bl_parse_dt()
185 		return ERR_PTR(-ENODEV);  in tps65217_bl_parse_dt()
187 	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);  in tps65217_bl_parse_dt()
189 		err = ERR_PTR(-ENOMEM);  in tps65217_bl_parse_dt()
193 	pdata->isel = TPS65217_BL_ISET1;  in tps65217_bl_parse_dt()
197 			dev_err(&pdev->dev,  in tps65217_bl_parse_dt()
199 			err = ERR_PTR(-EINVAL);  in tps65217_bl_parse_dt()
203 		pdata->isel = val;  in tps65217_bl_parse_dt()
206 	pdata->fdim = TPS65217_BL_FDIM_200HZ;  in tps65217_bl_parse_dt()
210 			pdata->fdim = TPS65217_BL_FDIM_100HZ;  in tps65217_bl_parse_dt()
214 			pdata->fdim = TPS65217_BL_FDIM_200HZ;  in tps65217_bl_parse_dt()
218 			pdata->fdim = TPS65217_BL_FDIM_500HZ;  in tps65217_bl_parse_dt()
222 			pdata->fdim = TPS65217_BL_FDIM_1000HZ;  in tps65217_bl_parse_dt()
225 		default:  in tps65217_bl_parse_dt()
226 			dev_err(&pdev->dev,  in tps65217_bl_parse_dt()
228 			err = ERR_PTR(-EINVAL);  in tps65217_bl_parse_dt()
233 	if (!of_property_read_u32(node, "default-brightness", &val)) {  in tps65217_bl_parse_dt()
235 			dev_err(&pdev->dev,  in tps65217_bl_parse_dt()
236 				"invalid 'default-brightness' value in the device tree\n");  in tps65217_bl_parse_dt()
237 			err = ERR_PTR(-EINVAL);  in tps65217_bl_parse_dt()
241 		pdata->dft_brightness = val;  in tps65217_bl_parse_dt()
264 	struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent);  in tps65217_bl_probe()
273 	tps65217_bl = devm_kzalloc(&pdev->dev, sizeof(*tps65217_bl),  in tps65217_bl_probe()
276 		return -ENOMEM;  in tps65217_bl_probe()
278 	tps65217_bl->tps = tps;  in tps65217_bl_probe()
279 	tps65217_bl->dev = &pdev->dev;  in tps65217_bl_probe()
280 	tps65217_bl->is_enabled = false;  in tps65217_bl_probe()
290 	tps65217_bl->bl = devm_backlight_device_register(&pdev->dev, pdev->name,  in tps65217_bl_probe()
291 						tps65217_bl->dev, tps65217_bl,  in tps65217_bl_probe()
293 	if (IS_ERR(tps65217_bl->bl)) {  in tps65217_bl_probe()
294 		dev_err(tps65217_bl->dev,  in tps65217_bl_probe()
296 		return PTR_ERR(tps65217_bl->bl);  in tps65217_bl_probe()
299 	tps65217_bl->bl->props.brightness = pdata->dft_brightness;  in tps65217_bl_probe()
300 	backlight_update_status(tps65217_bl->bl);  in tps65217_bl_probe()
308 	{ .compatible = "ti,tps65217-bl", },
317 		.name	= "tps65217-bl",