42 static void sharp_wait_frames(struct sharp_panel *sharp, unsigned int frames)  in sharp_wait_frames()  argument
44 	unsigned int refresh = drm_mode_vrefresh(sharp->mode);  in sharp_wait_frames()
52 static int sharp_panel_write(struct sharp_panel *sharp, u16 offset, u8 value)  in sharp_panel_write()  argument
55 	struct mipi_dsi_device *dsi = sharp->link1;  in sharp_panel_write()
76 static __maybe_unused int sharp_panel_read(struct sharp_panel *sharp,  in sharp_panel_read()  argument
83 	err = mipi_dsi_generic_read(sharp->link1, &offset, sizeof(offset),  in sharp_panel_read()
86 		dev_err(&sharp->link1->dev, "failed to read from %04x: %zd\n",  in sharp_panel_read()
94 	struct sharp_panel *sharp = to_sharp_panel(panel);  in sharp_panel_disable()  local
96 	if (!sharp->enabled)  in sharp_panel_disable()
99 	if (sharp->backlight) {  in sharp_panel_disable()
100 		sharp->backlight->props.power = FB_BLANK_POWERDOWN;  in sharp_panel_disable()
101 		backlight_update_status(sharp->backlight);  in sharp_panel_disable()
104 	sharp->enabled = false;  in sharp_panel_disable()
111 	struct sharp_panel *sharp = to_sharp_panel(panel);  in sharp_panel_unprepare()  local
114 	if (!sharp->prepared)  in sharp_panel_unprepare()
117 	sharp_wait_frames(sharp, 4);  in sharp_panel_unprepare()
119 	err = mipi_dsi_dcs_set_display_off(sharp->link1);  in sharp_panel_unprepare()
123 	err = mipi_dsi_dcs_enter_sleep_mode(sharp->link1);  in sharp_panel_unprepare()
129 	regulator_disable(sharp->supply);  in sharp_panel_unprepare()
131 	sharp->prepared = false;  in sharp_panel_unprepare()
172 	struct sharp_panel *sharp = to_sharp_panel(panel);  in sharp_panel_prepare()  local
176 	if (sharp->prepared)  in sharp_panel_prepare()
179 	err = regulator_enable(sharp->supply);  in sharp_panel_prepare()
191 	err = mipi_dsi_dcs_exit_sleep_mode(sharp->link1);  in sharp_panel_prepare()
207 	err = sharp_panel_write(sharp, 0x1000, 0x2a);  in sharp_panel_prepare()
214 	err = sharp_panel_write(sharp, 0x1001, 0x01);  in sharp_panel_prepare()
220 	err = mipi_dsi_dcs_set_pixel_format(sharp->link1, format);  in sharp_panel_prepare()
233 	err = sharp_setup_symmetrical_split(sharp->link1, sharp->link2,  in sharp_panel_prepare()
234 					    sharp->mode);  in sharp_panel_prepare()
241 	err = mipi_dsi_dcs_set_display_on(sharp->link1);  in sharp_panel_prepare()
247 	sharp->prepared = true;  in sharp_panel_prepare()
250 	sharp_wait_frames(sharp, 6);  in sharp_panel_prepare()
255 	regulator_disable(sharp->supply);  in sharp_panel_prepare()
261 	struct sharp_panel *sharp = to_sharp_panel(panel);  in sharp_panel_enable()  local
263 	if (sharp->enabled)  in sharp_panel_enable()
266 	if (sharp->backlight) {  in sharp_panel_enable()
267 		sharp->backlight->props.power = FB_BLANK_UNBLANK;  in sharp_panel_enable()
268 		backlight_update_status(sharp->backlight);  in sharp_panel_enable()
271 	sharp->enabled = true;  in sharp_panel_enable()
325 static int sharp_panel_add(struct sharp_panel *sharp)  in sharp_panel_add()  argument
330 	sharp->mode = &default_mode;  in sharp_panel_add()
332 	sharp->supply = devm_regulator_get(&sharp->link1->dev, "power");  in sharp_panel_add()
333 	if (IS_ERR(sharp->supply))  in sharp_panel_add()
334 		return PTR_ERR(sharp->supply);  in sharp_panel_add()
336 	np = of_parse_phandle(sharp->link1->dev.of_node, "backlight", 0);  in sharp_panel_add()
338 		sharp->backlight = of_find_backlight_by_node(np);  in sharp_panel_add()
341 		if (!sharp->backlight)  in sharp_panel_add()
345 	drm_panel_init(&sharp->base);  in sharp_panel_add()
346 	sharp->base.funcs = &sharp_panel_funcs;  in sharp_panel_add()
347 	sharp->base.dev = &sharp->link1->dev;  in sharp_panel_add()
349 	err = drm_panel_add(&sharp->base);  in sharp_panel_add()
356 	if (sharp->backlight)  in sharp_panel_add()
357 		put_device(&sharp->backlight->dev);  in sharp_panel_add()
362 static void sharp_panel_del(struct sharp_panel *sharp)  in sharp_panel_del()  argument
364 	if (sharp->base.dev)  in sharp_panel_del()
365 		drm_panel_remove(&sharp->base);  in sharp_panel_del()
367 	if (sharp->backlight)  in sharp_panel_del()
368 		put_device(&sharp->backlight->dev);  in sharp_panel_del()
370 	if (sharp->link2)  in sharp_panel_del()
371 		put_device(&sharp->link2->dev);  in sharp_panel_del()
377 	struct sharp_panel *sharp;  in sharp_panel_probe()  local
397 		sharp = devm_kzalloc(&dsi->dev, sizeof(*sharp), GFP_KERNEL);  in sharp_panel_probe()
398 		if (!sharp) {  in sharp_panel_probe()
403 		mipi_dsi_set_drvdata(dsi, sharp);  in sharp_panel_probe()
405 		sharp->link2 = secondary;  in sharp_panel_probe()
406 		sharp->link1 = dsi;  in sharp_panel_probe()
408 		err = sharp_panel_add(sharp);  in sharp_panel_probe()
418 			sharp_panel_del(sharp);  in sharp_panel_probe()
428 	struct sharp_panel *sharp = mipi_dsi_get_drvdata(dsi);  in sharp_panel_remove()  local
432 	if (!sharp) {  in sharp_panel_remove()
437 	err = sharp_panel_disable(&sharp->base);  in sharp_panel_remove()
445 	drm_panel_detach(&sharp->base);  in sharp_panel_remove()
446 	sharp_panel_del(sharp);  in sharp_panel_remove()
453 	struct sharp_panel *sharp = mipi_dsi_get_drvdata(dsi);  in sharp_panel_shutdown()  local
456 	if (!sharp)  in sharp_panel_shutdown()
459 	sharp_panel_disable(&sharp->base);  in sharp_panel_shutdown()