55 		int ret;						\
56 		ret = mipi_dsi_dcs_write_buffer(dsi, b, ARRAY_SIZE(b));	\
57 		if (ret < 0)						\
58 			return ret;					\
99 	int ret;  in kd35t133_unprepare()  local
104 	ret = mipi_dsi_dcs_set_display_off(dsi);  in kd35t133_unprepare()
105 	if (ret < 0)  in kd35t133_unprepare()
106 		dev_err(ctx->dev, "failed to set display off: %d\n", ret);  in kd35t133_unprepare()
108 	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);  in kd35t133_unprepare()
109 	if (ret < 0) {  in kd35t133_unprepare()
110 		dev_err(ctx->dev, "failed to enter sleep mode: %d\n", ret);  in kd35t133_unprepare()
111 		return ret;  in kd35t133_unprepare()
126 	int ret;  in kd35t133_prepare()  local
132 	ret = regulator_enable(ctx->vdd);  in kd35t133_prepare()
133 	if (ret < 0) {  in kd35t133_prepare()
134 		dev_err(ctx->dev, "Failed to enable vdd supply: %d\n", ret);  in kd35t133_prepare()
135 		return ret;  in kd35t133_prepare()
138 	ret = regulator_enable(ctx->iovcc);  in kd35t133_prepare()
139 	if (ret < 0) {  in kd35t133_prepare()
140 		dev_err(ctx->dev, "Failed to enable iovcc supply: %d\n", ret);  in kd35t133_prepare()
152 	ret = mipi_dsi_dcs_exit_sleep_mode(dsi);  in kd35t133_prepare()
153 	if (ret < 0) {  in kd35t133_prepare()
154 		dev_err(ctx->dev, "Failed to exit sleep mode: %d\n", ret);  in kd35t133_prepare()
160 	ret = kd35t133_init_sequence(ctx);  in kd35t133_prepare()
161 	if (ret < 0) {  in kd35t133_prepare()
162 		dev_err(ctx->dev, "Panel init sequence failed: %d\n", ret);  in kd35t133_prepare()
166 	ret = mipi_dsi_dcs_set_display_on(dsi);  in kd35t133_prepare()
167 	if (ret < 0) {  in kd35t133_prepare()
168 		dev_err(ctx->dev, "Failed to set display on: %d\n", ret);  in kd35t133_prepare()
182 	return ret;  in kd35t133_prepare()
233 	int ret;  in kd35t133_probe()  local
247 		ret = PTR_ERR(ctx->vdd);  in kd35t133_probe()
248 		if (ret != -EPROBE_DEFER)  in kd35t133_probe()
249 			dev_err(dev, "Failed to request vdd regulator: %d\n", ret);  in kd35t133_probe()
250 		return ret;  in kd35t133_probe()
255 		ret = PTR_ERR(ctx->iovcc);  in kd35t133_probe()
256 		if (ret != -EPROBE_DEFER)  in kd35t133_probe()
257 			dev_err(dev, "Failed to request iovcc regulator: %d\n", ret);  in kd35t133_probe()
258 		return ret;  in kd35t133_probe()
274 	ret = drm_panel_of_backlight(&ctx->panel);  in kd35t133_probe()
275 	if (ret)  in kd35t133_probe()
276 		return ret;  in kd35t133_probe()
280 	ret = mipi_dsi_attach(dsi);  in kd35t133_probe()
281 	if (ret < 0) {  in kd35t133_probe()
282 		dev_err(dev, "mipi_dsi_attach failed: %d\n", ret);  in kd35t133_probe()
284 		return ret;  in kd35t133_probe()
293 	int ret;  in kd35t133_shutdown()  local
295 	ret = drm_panel_unprepare(&ctx->panel);  in kd35t133_shutdown()
296 	if (ret < 0)  in kd35t133_shutdown()
297 		dev_err(&dsi->dev, "Failed to unprepare panel: %d\n", ret);  in kd35t133_shutdown()
299 	ret = drm_panel_disable(&ctx->panel);  in kd35t133_shutdown()
300 	if (ret < 0)  in kd35t133_shutdown()
301 		dev_err(&dsi->dev, "Failed to disable panel: %d\n", ret);  in kd35t133_shutdown()
307 	int ret;  in kd35t133_remove()  local
311 	ret = mipi_dsi_detach(dsi);  in kd35t133_remove()
312 	if (ret < 0)  in kd35t133_remove()
313 		dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);  in kd35t133_remove()