28 static inline int aat2870_brightness(struct aat2870_bl_driver_data *aat2870_bl,  in aat2870_brightness()  argument
31 	struct backlight_device *bd = aat2870_bl->bd;  in aat2870_brightness()
34 	val = brightness * (aat2870_bl->max_current - 1);  in aat2870_brightness()
40 static inline int aat2870_bl_enable(struct aat2870_bl_driver_data *aat2870_bl)  in aat2870_bl_enable()  argument
43 			= dev_get_drvdata(aat2870_bl->pdev->dev.parent);  in aat2870_bl_enable()
46 			      (u8)aat2870_bl->channels);  in aat2870_bl_enable()
49 static inline int aat2870_bl_disable(struct aat2870_bl_driver_data *aat2870_bl)  in aat2870_bl_disable()  argument
52 			= dev_get_drvdata(aat2870_bl->pdev->dev.parent);  in aat2870_bl_disable()
59 	struct aat2870_bl_driver_data *aat2870_bl = bl_get_data(bd);  in aat2870_bl_update_status()  local
61 			dev_get_drvdata(aat2870_bl->pdev->dev.parent);  in aat2870_bl_update_status()
79 			     (u8)aat2870_brightness(aat2870_bl, brightness));  in aat2870_bl_update_status()
84 		ret = aat2870_bl_disable(aat2870_bl);  in aat2870_bl_update_status()
87 	} else if (aat2870_bl->brightness == 0) {  in aat2870_bl_update_status()
88 		ret = aat2870_bl_enable(aat2870_bl);  in aat2870_bl_update_status()
93 	aat2870_bl->brightness = brightness;  in aat2870_bl_update_status()
112 	struct aat2870_bl_driver_data *aat2870_bl;  in aat2870_bl_probe()  local
129 	aat2870_bl = devm_kzalloc(&pdev->dev,  in aat2870_bl_probe()
132 	if (!aat2870_bl) {  in aat2870_bl_probe()
141 					&pdev->dev, aat2870_bl, &aat2870_bl_ops,  in aat2870_bl_probe()
150 	aat2870_bl->pdev = pdev;  in aat2870_bl_probe()
151 	platform_set_drvdata(pdev, aat2870_bl);  in aat2870_bl_probe()
153 	aat2870_bl->bd = bd;  in aat2870_bl_probe()
156 		aat2870_bl->channels = pdata->channels;  in aat2870_bl_probe()
158 		aat2870_bl->channels = AAT2870_BL_CH_ALL;  in aat2870_bl_probe()
161 		aat2870_bl->max_current = pdata->max_current;  in aat2870_bl_probe()
163 		aat2870_bl->max_current = AAT2870_CURRENT_27_9;  in aat2870_bl_probe()
170 	aat2870_bl->brightness = 0;  in aat2870_bl_probe()
188 	struct aat2870_bl_driver_data *aat2870_bl = platform_get_drvdata(pdev);  in aat2870_bl_remove()  local
189 	struct backlight_device *bd = aat2870_bl->bd;  in aat2870_bl_remove()