71 static int lp8788_backlight_configure(struct lp8788_bl *bl)  in lp8788_backlight_configure()  argument
73 	struct lp8788_backlight_platform_data *pdata = bl->pdata;  in lp8788_backlight_configure()
93 	ret = lp8788_write_byte(bl->lp, LP8788_BL_RAMP, val);  in lp8788_backlight_configure()
112 		dev_err(bl->lp->dev, "invalid mode: %d\n", cfg->bl_mode);  in lp8788_backlight_configure()
116 	bl->mode = cfg->bl_mode;  in lp8788_backlight_configure()
118 	return lp8788_write_byte(bl->lp, LP8788_BL_CONFIG, val);  in lp8788_backlight_configure()
121 static void lp8788_pwm_ctrl(struct lp8788_bl *bl, int br, int max_br)  in lp8788_pwm_ctrl()  argument
128 	if (!bl->pdata)  in lp8788_pwm_ctrl()
131 	period = bl->pdata->period_ns;  in lp8788_pwm_ctrl()
133 	dev = bl->lp->dev;  in lp8788_pwm_ctrl()
136 	if (!bl->pwm) {  in lp8788_pwm_ctrl()
143 		bl->pwm = pwm;  in lp8788_pwm_ctrl()
152 	pwm_config(bl->pwm, duty, period);  in lp8788_pwm_ctrl()
154 		pwm_enable(bl->pwm);  in lp8788_pwm_ctrl()
156 		pwm_disable(bl->pwm);  in lp8788_pwm_ctrl()
161 	struct lp8788_bl *bl = bl_get_data(bl_dev);  in lp8788_bl_update_status()  local
162 	enum lp8788_bl_ctrl_mode mode = bl->mode;  in lp8788_bl_update_status()
171 		lp8788_pwm_ctrl(bl, brt, max);  in lp8788_bl_update_status()
175 		lp8788_write_byte(bl->lp, LP8788_BL_BRIGHTNESS, brt);  in lp8788_bl_update_status()
186 static int lp8788_backlight_register(struct lp8788_bl *bl)  in lp8788_backlight_register()  argument
190 	struct lp8788_backlight_platform_data *pdata = bl->pdata;  in lp8788_backlight_register()
212 	bl_dev = backlight_device_register(name, bl->lp->dev, bl,  in lp8788_backlight_register()
217 	bl->bl_dev = bl_dev;  in lp8788_backlight_register()
222 static void lp8788_backlight_unregister(struct lp8788_bl *bl)  in lp8788_backlight_unregister()  argument
224 	struct backlight_device *bl_dev = bl->bl_dev;  in lp8788_backlight_unregister()
232 	struct lp8788_bl *bl = dev_get_drvdata(dev);  in lp8788_get_bl_ctl_mode()  local
233 	enum lp8788_bl_ctrl_mode mode = bl->mode;  in lp8788_get_bl_ctl_mode()
260 	struct lp8788_bl *bl;  in lp8788_backlight_probe()  local
263 	bl = devm_kzalloc(lp->dev, sizeof(struct lp8788_bl), GFP_KERNEL);  in lp8788_backlight_probe()
264 	if (!bl)  in lp8788_backlight_probe()
267 	bl->lp = lp;  in lp8788_backlight_probe()
269 		bl->pdata = lp->pdata->bl_pdata;  in lp8788_backlight_probe()
271 	platform_set_drvdata(pdev, bl);  in lp8788_backlight_probe()
273 	ret = lp8788_backlight_configure(bl);  in lp8788_backlight_probe()
279 	ret = lp8788_backlight_register(bl);  in lp8788_backlight_probe()
291 	backlight_update_status(bl->bl_dev);  in lp8788_backlight_probe()
296 	lp8788_backlight_unregister(bl);  in lp8788_backlight_probe()
303 	struct lp8788_bl *bl = platform_get_drvdata(pdev);  in lp8788_backlight_remove()  local
304 	struct backlight_device *bl_dev = bl->bl_dev;  in lp8788_backlight_remove()
309 	lp8788_backlight_unregister(bl);  in lp8788_backlight_remove()