56 	ssize_t err;  in sharp_panel_write()  local
58 	err = mipi_dsi_generic_write(dsi, payload, sizeof(payload));  in sharp_panel_write()
59 	if (err < 0) {  in sharp_panel_write()
61 			value, offset, err);  in sharp_panel_write()
62 		return err;  in sharp_panel_write()
65 	err = mipi_dsi_dcs_nop(dsi);  in sharp_panel_write()
66 	if (err < 0) {  in sharp_panel_write()
67 		dev_err(&dsi->dev, "failed to send DCS nop: %zd\n", err);  in sharp_panel_write()
68 		return err;  in sharp_panel_write()
79 	ssize_t err;  in sharp_panel_read()  local
83 	err = mipi_dsi_generic_read(sharp->link1, &offset, sizeof(offset),  in sharp_panel_read()
85 	if (err < 0)  in sharp_panel_read()
87 			offset, err);  in sharp_panel_read()
89 	return err;  in sharp_panel_read()
112 	int err;  in sharp_panel_unprepare()  local
119 	err = mipi_dsi_dcs_set_display_off(sharp->link1);  in sharp_panel_unprepare()
120 	if (err < 0)  in sharp_panel_unprepare()
121 		dev_err(panel->dev, "failed to set display off: %d\n", err);  in sharp_panel_unprepare()
123 	err = mipi_dsi_dcs_enter_sleep_mode(sharp->link1);  in sharp_panel_unprepare()
124 	if (err < 0)  in sharp_panel_unprepare()
125 		dev_err(panel->dev, "failed to enter sleep mode: %d\n", err);  in sharp_panel_unprepare()
140 	int err;  in sharp_setup_symmetrical_split()  local
142 	err = mipi_dsi_dcs_set_column_address(left, 0, mode->hdisplay / 2 - 1);  in sharp_setup_symmetrical_split()
143 	if (err < 0) {  in sharp_setup_symmetrical_split()
144 		dev_err(&left->dev, "failed to set column address: %d\n", err);  in sharp_setup_symmetrical_split()
145 		return err;  in sharp_setup_symmetrical_split()
148 	err = mipi_dsi_dcs_set_page_address(left, 0, mode->vdisplay - 1);  in sharp_setup_symmetrical_split()
149 	if (err < 0) {  in sharp_setup_symmetrical_split()
150 		dev_err(&left->dev, "failed to set page address: %d\n", err);  in sharp_setup_symmetrical_split()
151 		return err;  in sharp_setup_symmetrical_split()
154 	err = mipi_dsi_dcs_set_column_address(right, mode->hdisplay / 2,  in sharp_setup_symmetrical_split()
156 	if (err < 0) {  in sharp_setup_symmetrical_split()
157 		dev_err(&right->dev, "failed to set column address: %d\n", err);  in sharp_setup_symmetrical_split()
158 		return err;  in sharp_setup_symmetrical_split()
161 	err = mipi_dsi_dcs_set_page_address(right, 0, mode->vdisplay - 1);  in sharp_setup_symmetrical_split()
162 	if (err < 0) {  in sharp_setup_symmetrical_split()
163 		dev_err(&right->dev, "failed to set page address: %d\n", err);  in sharp_setup_symmetrical_split()
164 		return err;  in sharp_setup_symmetrical_split()
174 	int err;  in sharp_panel_prepare()  local
179 	err = regulator_enable(sharp->supply);  in sharp_panel_prepare()
180 	if (err < 0)  in sharp_panel_prepare()
181 		return err;  in sharp_panel_prepare()
191 	err = mipi_dsi_dcs_exit_sleep_mode(sharp->link1);  in sharp_panel_prepare()
192 	if (err < 0) {  in sharp_panel_prepare()
193 		dev_err(panel->dev, "failed to exit sleep mode: %d\n", err);  in sharp_panel_prepare()
207 	err = sharp_panel_write(sharp, 0x1000, 0x2a);  in sharp_panel_prepare()
208 	if (err < 0) {  in sharp_panel_prepare()
209 		dev_err(panel->dev, "failed to set left-right mode: %d\n", err);  in sharp_panel_prepare()
214 	err = sharp_panel_write(sharp, 0x1001, 0x01);  in sharp_panel_prepare()
215 	if (err < 0) {  in sharp_panel_prepare()
216 		dev_err(panel->dev, "failed to enable command mode: %d\n", err);  in sharp_panel_prepare()
220 	err = mipi_dsi_dcs_set_pixel_format(sharp->link1, format);  in sharp_panel_prepare()
221 	if (err < 0) {  in sharp_panel_prepare()
222 		dev_err(panel->dev, "failed to set pixel format: %d\n", err);  in sharp_panel_prepare()
233 	err = sharp_setup_symmetrical_split(sharp->link1, sharp->link2,  in sharp_panel_prepare()
235 	if (err < 0) {  in sharp_panel_prepare()
237 			err);  in sharp_panel_prepare()
241 	err = mipi_dsi_dcs_set_display_on(sharp->link1);  in sharp_panel_prepare()
242 	if (err < 0) {  in sharp_panel_prepare()
243 		dev_err(panel->dev, "failed to set display on: %d\n", err);  in sharp_panel_prepare()
256 	return err;  in sharp_panel_prepare()
328 	int err;  in sharp_panel_add()  local
349 	err = drm_panel_add(&sharp->base);  in sharp_panel_add()
350 	if (err < 0)  in sharp_panel_add()
359 	return err;  in sharp_panel_add()
379 	int err;  in sharp_panel_probe()  local
408 		err = sharp_panel_add(sharp);  in sharp_panel_probe()
409 		if (err < 0) {  in sharp_panel_probe()
411 			return err;  in sharp_panel_probe()
415 	err = mipi_dsi_attach(dsi);  in sharp_panel_probe()
416 	if (err < 0) {  in sharp_panel_probe()
420 		return err;  in sharp_panel_probe()
429 	int err;  in sharp_panel_remove()  local
437 	err = sharp_panel_disable(&sharp->base);  in sharp_panel_remove()
438 	if (err < 0)  in sharp_panel_remove()
439 		dev_err(&dsi->dev, "failed to disable panel: %d\n", err);  in sharp_panel_remove()
441 	err = mipi_dsi_detach(dsi);  in sharp_panel_remove()
442 	if (err < 0)  in sharp_panel_remove()
443 		dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", err);  in sharp_panel_remove()