20 struct tps65217_bl {  struct
27 static int tps65217_bl_enable(struct tps65217_bl *tps65217_bl)  in tps65217_bl_enable()  argument
31 	rc = tps65217_set_bits(tps65217_bl->tps, TPS65217_REG_WLEDCTRL1,  in tps65217_bl_enable()
35 		dev_err(tps65217_bl->dev,  in tps65217_bl_enable()
40 	tps65217_bl->is_enabled = true;  in tps65217_bl_enable()
42 	dev_dbg(tps65217_bl->dev, "backlight enabled\n");  in tps65217_bl_enable()
47 static int tps65217_bl_disable(struct tps65217_bl *tps65217_bl)  in tps65217_bl_disable()  argument
51 	rc = tps65217_clear_bits(tps65217_bl->tps,  in tps65217_bl_disable()
56 		dev_err(tps65217_bl->dev,  in tps65217_bl_disable()
61 	tps65217_bl->is_enabled = false;  in tps65217_bl_disable()
63 	dev_dbg(tps65217_bl->dev, "backlight disabled\n");  in tps65217_bl_disable()
70 	struct tps65217_bl *tps65217_bl = bl_get_data(bl);  in tps65217_bl_update_status()  local
75 		rc = tps65217_reg_write(tps65217_bl->tps,  in tps65217_bl_update_status()
80 			dev_err(tps65217_bl->dev,  in tps65217_bl_update_status()
85 		dev_dbg(tps65217_bl->dev, "brightness set to %d\n", brightness);  in tps65217_bl_update_status()
87 		if (!tps65217_bl->is_enabled)  in tps65217_bl_update_status()
88 			rc = tps65217_bl_enable(tps65217_bl);  in tps65217_bl_update_status()
90 		rc = tps65217_bl_disable(tps65217_bl);  in tps65217_bl_update_status()
101 static int tps65217_bl_hw_init(struct tps65217_bl *tps65217_bl,  in tps65217_bl_hw_init()  argument
106 	rc = tps65217_bl_disable(tps65217_bl);  in tps65217_bl_hw_init()
113 		rc = tps65217_clear_bits(tps65217_bl->tps,  in tps65217_bl_hw_init()
118 			dev_err(tps65217_bl->dev,  in tps65217_bl_hw_init()
124 		dev_dbg(tps65217_bl->dev, "selected ISET1 current level\n");  in tps65217_bl_hw_init()
130 		rc = tps65217_set_bits(tps65217_bl->tps, TPS65217_REG_WLEDCTRL1,  in tps65217_bl_hw_init()
134 			dev_err(tps65217_bl->dev,  in tps65217_bl_hw_init()
140 		dev_dbg(tps65217_bl->dev, "selected ISET2 current level\n");  in tps65217_bl_hw_init()
145 		dev_err(tps65217_bl->dev,  in tps65217_bl_hw_init()
151 	rc = tps65217_set_bits(tps65217_bl->tps,  in tps65217_bl_hw_init()
157 		dev_err(tps65217_bl->dev,  in tps65217_bl_hw_init()
257 	struct tps65217_bl *tps65217_bl;  in tps65217_bl_probe()  local
265 	tps65217_bl = devm_kzalloc(&pdev->dev, sizeof(*tps65217_bl),  in tps65217_bl_probe()
267 	if (tps65217_bl == NULL)  in tps65217_bl_probe()
270 	tps65217_bl->tps = tps;  in tps65217_bl_probe()
271 	tps65217_bl->dev = &pdev->dev;  in tps65217_bl_probe()
272 	tps65217_bl->is_enabled = false;  in tps65217_bl_probe()
274 	rc = tps65217_bl_hw_init(tps65217_bl, pdata);  in tps65217_bl_probe()
282 	tps65217_bl->bl = devm_backlight_device_register(&pdev->dev, pdev->name,  in tps65217_bl_probe()
283 						tps65217_bl->dev, tps65217_bl,  in tps65217_bl_probe()
285 	if (IS_ERR(tps65217_bl->bl)) {  in tps65217_bl_probe()
286 		dev_err(tps65217_bl->dev,  in tps65217_bl_probe()
288 		return PTR_ERR(tps65217_bl->bl);  in tps65217_bl_probe()
291 	tps65217_bl->bl->props.brightness = pdata->dft_brightness;  in tps65217_bl_probe()
292 	backlight_update_status(tps65217_bl->bl);  in tps65217_bl_probe()
293 	platform_set_drvdata(pdev, tps65217_bl);  in tps65217_bl_probe()