3  * Sharp LS037V7DW01 LCD Panel Driver
41 	struct ls037v7dw01_panel *lcd = to_ls037v7dw01_device(panel);  in ls037v7dw01_disable()  local
43 	gpiod_set_value_cansleep(lcd->ini_gpio, 0);  in ls037v7dw01_disable()
44 	gpiod_set_value_cansleep(lcd->resb_gpio, 0);  in ls037v7dw01_disable()
46 	/* Wait at least 5 vsyncs after disabling the LCD. */  in ls037v7dw01_disable()
54 	struct ls037v7dw01_panel *lcd = to_ls037v7dw01_device(panel);  in ls037v7dw01_unprepare()  local
56 	regulator_disable(lcd->vdd);  in ls037v7dw01_unprepare()
62 	struct ls037v7dw01_panel *lcd = to_ls037v7dw01_device(panel);  in ls037v7dw01_prepare()  local
65 	ret = regulator_enable(lcd->vdd);  in ls037v7dw01_prepare()
67 		dev_err(&lcd->pdev->dev, "%s: failed to enable regulator\n",  in ls037v7dw01_prepare()
75 	struct ls037v7dw01_panel *lcd = to_ls037v7dw01_device(panel);  in ls037v7dw01_enable()  local
77 	/* Wait couple of vsyncs before enabling the LCD. */  in ls037v7dw01_enable()
80 	gpiod_set_value_cansleep(lcd->resb_gpio, 1);  in ls037v7dw01_enable()
81 	gpiod_set_value_cansleep(lcd->ini_gpio, 1);  in ls037v7dw01_enable()
139 	struct ls037v7dw01_panel *lcd;  in ls037v7dw01_probe()  local
141 	lcd = devm_kzalloc(&pdev->dev, sizeof(*lcd), GFP_KERNEL);  in ls037v7dw01_probe()
142 	if (!lcd)  in ls037v7dw01_probe()
145 	platform_set_drvdata(pdev, lcd);  in ls037v7dw01_probe()
146 	lcd->pdev = pdev;  in ls037v7dw01_probe()
148 	lcd->vdd = devm_regulator_get(&pdev->dev, "envdd");  in ls037v7dw01_probe()
149 	if (IS_ERR(lcd->vdd)) {  in ls037v7dw01_probe()
151 		return PTR_ERR(lcd->vdd);  in ls037v7dw01_probe()
154 	lcd->ini_gpio = devm_gpiod_get(&pdev->dev, "enable", GPIOD_OUT_LOW);  in ls037v7dw01_probe()
155 	if (IS_ERR(lcd->ini_gpio)) {  in ls037v7dw01_probe()
157 		return PTR_ERR(lcd->ini_gpio);  in ls037v7dw01_probe()
160 	lcd->resb_gpio = devm_gpiod_get(&pdev->dev, "reset", GPIOD_OUT_LOW);  in ls037v7dw01_probe()
161 	if (IS_ERR(lcd->resb_gpio)) {  in ls037v7dw01_probe()
163 		return PTR_ERR(lcd->resb_gpio);  in ls037v7dw01_probe()
166 	lcd->mo_gpio = devm_gpiod_get_index(&pdev->dev, "mode", 0,  in ls037v7dw01_probe()
168 	if (IS_ERR(lcd->mo_gpio)) {  in ls037v7dw01_probe()
170 		return PTR_ERR(lcd->mo_gpio);  in ls037v7dw01_probe()
173 	lcd->lr_gpio = devm_gpiod_get_index(&pdev->dev, "mode", 1,  in ls037v7dw01_probe()
175 	if (IS_ERR(lcd->lr_gpio)) {  in ls037v7dw01_probe()
177 		return PTR_ERR(lcd->lr_gpio);  in ls037v7dw01_probe()
180 	lcd->ud_gpio = devm_gpiod_get_index(&pdev->dev, "mode", 2,  in ls037v7dw01_probe()
182 	if (IS_ERR(lcd->ud_gpio)) {  in ls037v7dw01_probe()
184 		return PTR_ERR(lcd->ud_gpio);  in ls037v7dw01_probe()
187 	drm_panel_init(&lcd->panel, &pdev->dev, &ls037v7dw01_funcs,  in ls037v7dw01_probe()
190 	drm_panel_add(&lcd->panel);  in ls037v7dw01_probe()
197 	struct ls037v7dw01_panel *lcd = platform_get_drvdata(pdev);  in ls037v7dw01_remove()  local
199 	drm_panel_remove(&lcd->panel);  in ls037v7dw01_remove()
200 	drm_panel_disable(&lcd->panel);  in ls037v7dw01_remove()
201 	drm_panel_unprepare(&lcd->panel);  in ls037v7dw01_remove()