97 	int (*init)(struct st7571_device *st7571);
98 	int (*parse_dt)(struct st7571_device *st7571);
103 	void (*prepare_buffer)(struct st7571_device *st7571,
176 	struct st7571_device *st7571 = i2c_get_clientdata(client);  in st7571_regmap_write()  local
180 		.addr = st7571->client->addr,  in st7571_regmap_write()
181 		.flags = st7571->ignore_nak ? I2C_M_IGNORE_NAK : 0,  in st7571_regmap_write()
186 	ret = i2c_transfer(st7571->client->adapter, &msg, 1);  in st7571_regmap_write()
194 	if (ret < 0 && st7571->ignore_nak)  in st7571_regmap_write()
207 static int st7571_send_command_list(struct st7571_device *st7571,  in st7571_send_command_list()  argument
213 		ret = regmap_write(st7571->regmap, ST7571_COMMAND_MODE, cmd_list[i]);  in st7571_send_command_list()
248 static int st7571_set_position(struct st7571_device *st7571, int x, int y)  in st7571_set_position()  argument
256 	return st7571_send_command_list(st7571, cmd_list, ARRAY_SIZE(cmd_list));  in st7571_set_position()
259 static int st7571_fb_clear_screen(struct st7571_device *st7571)  in st7571_fb_clear_screen()  argument
261 	u32 npixels = st7571->ncols * round_up(st7571->nlines, ST7571_PAGE_HEIGHT) * st7571->bpp;  in st7571_fb_clear_screen()
265 		regmap_bulk_write(st7571->regmap, ST7571_DATA_MODE, &pixelvalue, 1);  in st7571_fb_clear_screen()
270 static void st7571_prepare_buffer_monochrome(struct st7571_device *st7571,  in st7571_prepare_buffer_monochrome()  argument
283 		iosys_map_set_vaddr(&dst, st7571->hwbuf);  in st7571_prepare_buffer_monochrome()
290 		memcpy(st7571->hwbuf, vmap->vaddr, size);  in st7571_prepare_buffer_monochrome()
295 static void st7571_prepare_buffer_grayscale(struct st7571_device *st7571,  in st7571_prepare_buffer_grayscale()  argument
308 		iosys_map_set_vaddr(&dst, st7571->hwbuf);  in st7571_prepare_buffer_grayscale()
315 		memcpy(st7571->hwbuf, vmap->vaddr, size);  in st7571_prepare_buffer_grayscale()
320 		memcpy(st7571->hwbuf, vmap->vaddr, size);  in st7571_prepare_buffer_grayscale()
327 	struct st7571_device *st7571 = drm_to_st7571(fb->dev);  in st7571_fb_update_rect_monochrome()  local
328 	char *row = st7571->row;  in st7571_fb_update_rect_monochrome()
332 	rect->y2 = min_t(unsigned int, round_up(rect->y2, ST7571_PAGE_HEIGHT), st7571->nlines);  in st7571_fb_update_rect_monochrome()
336 			row[x] = st7571_transform_xy(st7571->hwbuf, x, y);  in st7571_fb_update_rect_monochrome()
338 		st7571_set_position(st7571, rect->x1, y);  in st7571_fb_update_rect_monochrome()
342 			regmap_bulk_write(st7571->regmap, ST7571_DATA_MODE, row + x, 1);  in st7571_fb_update_rect_monochrome()
350 	struct st7571_device *st7571 = drm_to_st7571(fb->dev);  in st7571_fb_update_rect_grayscale()  local
352 	char *row = st7571->row;  in st7571_fb_update_rect_grayscale()
358 	rect->y2 = min_t(unsigned int, round_up(rect->y2, ST7571_PAGE_HEIGHT), st7571->nlines);  in st7571_fb_update_rect_grayscale()
376 			row[x] = st7571_transform_xy(st7571->hwbuf, x, y);  in st7571_fb_update_rect_grayscale()
378 		st7571_set_position(st7571, rect->x1, y);  in st7571_fb_update_rect_grayscale()
382 			regmap_bulk_write(st7571->regmap, ST7571_DATA_MODE, row + x, 1);  in st7571_fb_update_rect_grayscale()
398 				regmap_bulk_write(st7571->regmap, ST7571_DATA_MODE, row + x, 1);  in st7571_fb_update_rect_grayscale()
407 	struct st7571_device *st7571 = drm_to_st7571(conn->dev);  in st7571_connector_get_modes()  local
409 	return drm_connector_helper_get_modes_fixed(conn, &st7571->mode);  in st7571_connector_get_modes()
470 	struct st7571_device *st7571 = drm_to_st7571(plane->dev);  in st7571_primary_plane_helper_atomic_update()  local
485 		st7571->pformat->prepare_buffer(st7571,  in st7571_primary_plane_helper_atomic_update()
490 		st7571->pformat->update_rect(fb, &damage);  in st7571_primary_plane_helper_atomic_update()
503 	struct st7571_device *st7571 = drm_to_st7571(plane->dev);  in st7571_primary_plane_helper_atomic_disable()  local
509 	st7571_fb_clear_screen(st7571);  in st7571_primary_plane_helper_atomic_disable()
534 	struct st7571_device *st7571 = drm_to_st7571(crtc->dev);  in st7571_crtc_mode_valid()  local
536 	return drm_crtc_helper_mode_valid_fixed(crtc, mode, &st7571->mode);  in st7571_crtc_mode_valid()
561 	struct st7571_device *st7571 = drm_to_st7571(drm);  in st7571_encoder_atomic_enable()  local
565 	ret = st7571->pdata->init(st7571);  in st7571_encoder_atomic_enable()
569 	st7571_send_command_list(st7571, &command, 1);  in st7571_encoder_atomic_enable()
576 	struct st7571_device *st7571 = drm_to_st7571(drm);  in st7571_encoder_atomic_disable()  local
579 	st7571_send_command_list(st7571, &command, 1);  in st7571_encoder_atomic_disable()
610 static struct drm_display_mode st7571_mode(struct st7571_device *st7571)  in st7571_mode()  argument
613 		DRM_SIMPLE_MODE(st7571->ncols, st7571->nlines,  in st7571_mode()
614 				st7571->width_mm, st7571->height_mm),  in st7571_mode()
620 static int st7571_mode_config_init(struct st7571_device *st7571)  in st7571_mode_config_init()  argument
622 	struct drm_device *dev = &st7571->dev;  in st7571_mode_config_init()
623 	const struct st7571_panel_constraints *constraints = &st7571->pdata->constraints;  in st7571_mode_config_init()
640 static int st7571_plane_init(struct st7571_device *st7571,  in st7571_plane_init()  argument
643 	struct drm_plane *primary_plane = &st7571->primary_plane;  in st7571_plane_init()
644 	struct drm_device *dev = &st7571->dev;  in st7571_plane_init()
662 static int st7571_crtc_init(struct st7571_device *st7571)  in st7571_crtc_init()  argument
664 	struct drm_plane *primary_plane = &st7571->primary_plane;  in st7571_crtc_init()
665 	struct drm_crtc *crtc = &st7571->crtc;  in st7571_crtc_init()
666 	struct drm_device *dev = &st7571->dev;  in st7571_crtc_init()
679 static int st7571_encoder_init(struct st7571_device *st7571)  in st7571_encoder_init()  argument
681 	struct drm_encoder *encoder = &st7571->encoder;  in st7571_encoder_init()
682 	struct drm_crtc *crtc = &st7571->crtc;  in st7571_encoder_init()
683 	struct drm_device *dev = &st7571->dev;  in st7571_encoder_init()
697 static int st7571_connector_init(struct st7571_device *st7571)  in st7571_connector_init()  argument
699 	struct drm_connector *connector = &st7571->connector;  in st7571_connector_init()
700 	struct drm_encoder *encoder = &st7571->encoder;  in st7571_connector_init()
701 	struct drm_device *dev = &st7571->dev;  in st7571_connector_init()
740 static int st7571_validate_parameters(struct st7571_device *st7571)  in st7571_validate_parameters()  argument
742 	struct device *dev = st7571->dev.dev;  in st7571_validate_parameters()
743 	const struct st7571_panel_constraints *constraints = &st7571->pdata->constraints;  in st7571_validate_parameters()
745 	if (st7571->width_mm  == 0) {  in st7571_validate_parameters()
750 	if (st7571->height_mm == 0) {  in st7571_validate_parameters()
755 	if (st7571->nlines < constraints->min_nlines ||  in st7571_validate_parameters()
756 	    st7571->nlines > constraints->max_nlines) {  in st7571_validate_parameters()
761 	if (st7571->startline + st7571->nlines > constraints->max_nlines) {  in st7571_validate_parameters()
766 	if (st7571->ncols < constraints->min_ncols ||  in st7571_validate_parameters()
767 	    st7571->ncols > constraints->max_ncols) {  in st7571_validate_parameters()
772 	if (st7571->grayscale && !constraints->support_grayscale) {  in st7571_validate_parameters()
806 static int st7571_parse_dt(struct st7571_device *st7571)  in st7571_parse_dt()  argument
808 	struct device *dev = &st7571->client->dev;  in st7571_parse_dt()
819 	of_property_read_u32(np, "width-mm", &st7571->width_mm);  in st7571_parse_dt()
820 	of_property_read_u32(np, "height-mm", &st7571->height_mm);  in st7571_parse_dt()
821 	st7571->grayscale = of_property_read_bool(np, "sitronix,grayscale");  in st7571_parse_dt()
823 	if (st7571->grayscale) {  in st7571_parse_dt()
824 		st7571->pformat = &st7571_grayscale;  in st7571_parse_dt()
825 		st7571->bpp = 2;  in st7571_parse_dt()
827 		st7571->pformat = &st7571_monochrome;  in st7571_parse_dt()
828 		st7571->bpp = 1;  in st7571_parse_dt()
831 	st7571->startline = dt.vfront_porch.typ;  in st7571_parse_dt()
832 	st7571->nlines = dt.vactive.typ;  in st7571_parse_dt()
833 	st7571->ncols = dt.hactive.typ;  in st7571_parse_dt()
835 	st7571->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);  in st7571_parse_dt()
836 	if (IS_ERR(st7571->reset))  in st7571_parse_dt()
837 		return dev_err_probe(dev, PTR_ERR(st7571->reset),  in st7571_parse_dt()
844 static void st7571_reset(struct st7571_device *st7571)  in st7571_reset()  argument
846 	gpiod_set_value_cansleep(st7571->reset, 1);  in st7571_reset()
848 	gpiod_set_value_cansleep(st7571->reset, 0);  in st7571_reset()
883 static int st7571_lcd_init(struct st7571_device *st7571)  in st7571_lcd_init()  argument
902 		ST7571_SET_START_LINE_LSB(st7571->startline),  in st7571_lcd_init()
910 		ST7571_SET_DISPLAY_DUTY_LSB(st7571->nlines),  in st7571_lcd_init()
917 		ST7571_SET_COLOR_MODE(st7571->pformat->mode),  in st7571_lcd_init()
925 	st7571_reset(st7571);  in st7571_lcd_init()
927 	return st7571_send_command_list(st7571, commands, ARRAY_SIZE(commands));  in st7571_lcd_init()
932 	struct st7571_device *st7571;  in st7571_probe()  local
936 	st7571 = devm_drm_dev_alloc(&client->dev, &st7571_driver,  in st7571_probe()
938 	if (IS_ERR(st7571))  in st7571_probe()
939 		return PTR_ERR(st7571);  in st7571_probe()
941 	dev = &st7571->dev;  in st7571_probe()
942 	st7571->client = client;  in st7571_probe()
943 	i2c_set_clientdata(client, st7571);  in st7571_probe()
944 	st7571->pdata = device_get_match_data(&client->dev);  in st7571_probe()
946 	ret = st7571->pdata->parse_dt(st7571);  in st7571_probe()
950 	ret = st7571_validate_parameters(st7571);  in st7571_probe()
954 	st7571->mode = st7571_mode(st7571);  in st7571_probe()
963 		st7571->ignore_nak = true;  in st7571_probe()
965 	st7571->regmap = devm_regmap_init(&client->dev, &st7571_regmap_bus,  in st7571_probe()
967 	if (IS_ERR(st7571->regmap)) {  in st7571_probe()
968 		return dev_err_probe(&client->dev, PTR_ERR(st7571->regmap),  in st7571_probe()
972 	st7571->hwbuf = devm_kzalloc(&client->dev,  in st7571_probe()
973 				     (st7571->nlines * st7571->ncols * st7571->bpp) / 8,  in st7571_probe()
975 	if (!st7571->hwbuf)  in st7571_probe()
978 	st7571->row = devm_kzalloc(&client->dev,  in st7571_probe()
979 				   (st7571->ncols * st7571->bpp),  in st7571_probe()
981 	if (!st7571->row)  in st7571_probe()
984 	ret = st7571_mode_config_init(st7571);  in st7571_probe()
989 	ret = st7571_plane_init(st7571, st7571->pformat);  in st7571_probe()
994 	ret = st7571_crtc_init(st7571);  in st7571_probe()
999 	ret = st7571_encoder_init(st7571);  in st7571_probe()
1004 	ret = st7571_connector_init(st7571);  in st7571_probe()
1022 	struct st7571_device *st7571 = i2c_get_clientdata(client);  in st7571_remove()  local
1024 	drm_dev_unplug(&st7571->dev);  in st7571_remove()