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 	backlight_disable(sharp->backlight);  in sharp_panel_disable()
101 	sharp->enabled = false;  in sharp_panel_disable()
108 	struct sharp_panel *sharp = to_sharp_panel(panel);  in sharp_panel_unprepare()  local
111 	if (!sharp->prepared)  in sharp_panel_unprepare()
114 	sharp_wait_frames(sharp, 4);  in sharp_panel_unprepare()
116 	err = mipi_dsi_dcs_set_display_off(sharp->link1);  in sharp_panel_unprepare()
120 	err = mipi_dsi_dcs_enter_sleep_mode(sharp->link1);  in sharp_panel_unprepare()
126 	regulator_disable(sharp->supply);  in sharp_panel_unprepare()
128 	sharp->prepared = false;  in sharp_panel_unprepare()
169 	struct sharp_panel *sharp = to_sharp_panel(panel);  in sharp_panel_prepare()  local
173 	if (sharp->prepared)  in sharp_panel_prepare()
176 	err = regulator_enable(sharp->supply);  in sharp_panel_prepare()
188 	err = mipi_dsi_dcs_exit_sleep_mode(sharp->link1);  in sharp_panel_prepare()
204 	err = sharp_panel_write(sharp, 0x1000, 0x2a);  in sharp_panel_prepare()
211 	err = sharp_panel_write(sharp, 0x1001, 0x01);  in sharp_panel_prepare()
217 	err = mipi_dsi_dcs_set_pixel_format(sharp->link1, format);  in sharp_panel_prepare()
230 	err = sharp_setup_symmetrical_split(sharp->link1, sharp->link2,  in sharp_panel_prepare()
231 					    sharp->mode);  in sharp_panel_prepare()
238 	err = mipi_dsi_dcs_set_display_on(sharp->link1);  in sharp_panel_prepare()
244 	sharp->prepared = true;  in sharp_panel_prepare()
247 	sharp_wait_frames(sharp, 6);  in sharp_panel_prepare()
252 	regulator_disable(sharp->supply);  in sharp_panel_prepare()
258 	struct sharp_panel *sharp = to_sharp_panel(panel);  in sharp_panel_enable()  local
260 	if (sharp->enabled)  in sharp_panel_enable()
263 	backlight_enable(sharp->backlight);  in sharp_panel_enable()
265 	sharp->enabled = true;  in sharp_panel_enable()
319 static int sharp_panel_add(struct sharp_panel *sharp)  in sharp_panel_add()  argument
321 	struct device *dev = &sharp->link1->dev;  in sharp_panel_add()
323 	sharp->mode = &default_mode;  in sharp_panel_add()
325 	sharp->supply = devm_regulator_get(&sharp->link1->dev, "power");  in sharp_panel_add()
326 	if (IS_ERR(sharp->supply))  in sharp_panel_add()
327 		return PTR_ERR(sharp->supply);  in sharp_panel_add()
329 	sharp->backlight = devm_of_find_backlight(dev);  in sharp_panel_add()
331 	if (IS_ERR(sharp->backlight))  in sharp_panel_add()
332 		return PTR_ERR(sharp->backlight);  in sharp_panel_add()
334 	drm_panel_init(&sharp->base);  in sharp_panel_add()
335 	sharp->base.funcs = &sharp_panel_funcs;  in sharp_panel_add()
336 	sharp->base.dev = &sharp->link1->dev;  in sharp_panel_add()
338 	return drm_panel_add(&sharp->base);  in sharp_panel_add()
341 static void sharp_panel_del(struct sharp_panel *sharp)  in sharp_panel_del()  argument
343 	if (sharp->base.dev)  in sharp_panel_del()
344 		drm_panel_remove(&sharp->base);  in sharp_panel_del()
346 	if (sharp->link2)  in sharp_panel_del()
347 		put_device(&sharp->link2->dev);  in sharp_panel_del()
353 	struct sharp_panel *sharp;  in sharp_panel_probe()  local
373 		sharp = devm_kzalloc(&dsi->dev, sizeof(*sharp), GFP_KERNEL);  in sharp_panel_probe()
374 		if (!sharp) {  in sharp_panel_probe()
379 		mipi_dsi_set_drvdata(dsi, sharp);  in sharp_panel_probe()
381 		sharp->link2 = secondary;  in sharp_panel_probe()
382 		sharp->link1 = dsi;  in sharp_panel_probe()
384 		err = sharp_panel_add(sharp);  in sharp_panel_probe()
394 			sharp_panel_del(sharp);  in sharp_panel_probe()
404 	struct sharp_panel *sharp = mipi_dsi_get_drvdata(dsi);  in sharp_panel_remove()  local
408 	if (!sharp) {  in sharp_panel_remove()
413 	err = sharp_panel_disable(&sharp->base);  in sharp_panel_remove()
421 	sharp_panel_del(sharp);  in sharp_panel_remove()
428 	struct sharp_panel *sharp = mipi_dsi_get_drvdata(dsi);  in sharp_panel_shutdown()  local
431 	if (!sharp)  in sharp_panel_shutdown()
434 	sharp_panel_disable(&sharp->base);  in sharp_panel_shutdown()