Lines Matching defs:lcd
75 static void acx565akm_transfer(struct acx565akm_panel *lcd, int cmd,
118 ret = spi_sync(lcd->spi, &m);
120 dev_dbg(&lcd->spi->dev, "spi_sync %d\n", ret);
123 static inline void acx565akm_cmd(struct acx565akm_panel *lcd, int cmd)
125 acx565akm_transfer(lcd, cmd, NULL, 0, NULL, 0);
128 static inline void acx565akm_write(struct acx565akm_panel *lcd,
131 acx565akm_transfer(lcd, reg, buf, len, NULL, 0);
134 static inline void acx565akm_read(struct acx565akm_panel *lcd,
137 acx565akm_transfer(lcd, reg, NULL, 0, buf, len);
144 static unsigned int acx565akm_get_cabc_mode(struct acx565akm_panel *lcd)
146 return lcd->cabc_mode;
149 static void acx565akm_set_cabc_mode(struct acx565akm_panel *lcd,
154 lcd->cabc_mode = mode;
155 if (!lcd->enabled)
158 acx565akm_read(lcd, MIPID_CMD_READ_CABC, (u8 *)&cabc_ctrl, 1);
161 acx565akm_write(lcd, MIPID_CMD_WRITE_CABC, (u8 *)&cabc_ctrl, 2);
164 static unsigned int acx565akm_get_hw_cabc_mode(struct acx565akm_panel *lcd)
168 acx565akm_read(lcd, MIPID_CMD_READ_CABC, &cabc_ctrl, 1);
183 struct acx565akm_panel *lcd = dev_get_drvdata(dev);
187 if (!lcd->has_cabc)
190 mode = acx565akm_get_cabc_mode(lcd);
203 struct acx565akm_panel *lcd = dev_get_drvdata(dev);
222 if (!lcd->has_cabc && i != 0)
225 mutex_lock(&lcd->mutex);
226 acx565akm_set_cabc_mode(lcd, i);
227 mutex_unlock(&lcd->mutex);
236 struct acx565akm_panel *lcd = dev_get_drvdata(dev);
240 if (!lcd->has_cabc)
269 static int acx565akm_get_actual_brightness(struct acx565akm_panel *lcd)
273 acx565akm_read(lcd, MIPI_DCS_GET_DISPLAY_BRIGHTNESS, &bv, 1);
278 static void acx565akm_set_brightness(struct acx565akm_panel *lcd, int level)
284 acx565akm_write(lcd, MIPI_DCS_SET_DISPLAY_BRIGHTNESS, (u8 *)&bv, 2);
286 acx565akm_read(lcd, MIPI_DCS_GET_CONTROL_DISPLAY, (u8 *)&ctrl, 1);
295 acx565akm_write(lcd, MIPI_DCS_WRITE_CONTROL_DISPLAY, (u8 *)&ctrl, 2);
300 struct acx565akm_panel *lcd = dev_get_drvdata(&dev->dev);
303 acx565akm_set_brightness(lcd, level);
310 struct acx565akm_panel *lcd = dev_get_drvdata(&dev->dev);
313 mutex_lock(&lcd->mutex);
315 mutex_unlock(&lcd->mutex);
322 struct acx565akm_panel *lcd = dev_get_drvdata(&dev->dev);
325 mutex_lock(&lcd->mutex);
328 intensity = acx565akm_get_actual_brightness(lcd);
332 mutex_unlock(&lcd->mutex);
342 static int acx565akm_backlight_init(struct acx565akm_panel *lcd)
350 lcd->backlight = backlight_device_register(lcd->name, &lcd->spi->dev,
351 lcd, &acx565akm_bl_ops,
353 if (IS_ERR(lcd->backlight)) {
354 ret = PTR_ERR(lcd->backlight);
355 lcd->backlight = NULL;
359 if (lcd->has_cabc) {
360 ret = sysfs_create_group(&lcd->backlight->dev.kobj,
363 dev_err(&lcd->spi->dev,
365 backlight_device_unregister(lcd->backlight);
369 lcd->cabc_mode = acx565akm_get_hw_cabc_mode(lcd);
372 lcd->backlight->props.max_brightness = 255;
373 lcd->backlight->props.brightness = acx565akm_get_actual_brightness(lcd);
375 acx565akm_bl_update_status_locked(lcd->backlight);
380 static void acx565akm_backlight_cleanup(struct acx565akm_panel *lcd)
382 if (lcd->has_cabc)
383 sysfs_remove_group(&lcd->backlight->dev.kobj,
386 backlight_device_unregister(lcd->backlight);
393 static void acx565akm_set_sleep_mode(struct acx565akm_panel *lcd, int on)
402 wait = lcd->hw_guard_end - jiffies;
403 if ((long)wait > 0 && wait <= lcd->hw_guard_wait) {
408 acx565akm_cmd(lcd, cmd);
410 lcd->hw_guard_wait = msecs_to_jiffies(120);
411 lcd->hw_guard_end = jiffies + lcd->hw_guard_wait;
414 static void acx565akm_set_display_state(struct acx565akm_panel *lcd,
419 acx565akm_cmd(lcd, cmd);
422 static int acx565akm_power_on(struct acx565akm_panel *lcd)
427 gpiod_set_value(lcd->reset_gpio, 1);
429 if (lcd->enabled) {
430 dev_dbg(&lcd->spi->dev, "panel already enabled\n");
444 acx565akm_set_sleep_mode(lcd, 0);
445 lcd->enabled = true;
449 acx565akm_set_display_state(lcd, 1);
450 acx565akm_set_cabc_mode(lcd, lcd->cabc_mode);
452 return acx565akm_bl_update_status_locked(lcd->backlight);
455 static void acx565akm_power_off(struct acx565akm_panel *lcd)
457 acx565akm_set_display_state(lcd, 0);
458 acx565akm_set_sleep_mode(lcd, 1);
459 lcd->enabled = false;
468 gpiod_set_value(lcd->reset_gpio, 0);
476 struct acx565akm_panel *lcd = to_acx565akm_device(panel);
478 mutex_lock(&lcd->mutex);
479 acx565akm_power_off(lcd);
480 mutex_unlock(&lcd->mutex);
487 struct acx565akm_panel *lcd = to_acx565akm_device(panel);
489 mutex_lock(&lcd->mutex);
490 acx565akm_power_on(lcd);
491 mutex_unlock(&lcd->mutex);
543 static int acx565akm_detect(struct acx565akm_panel *lcd)
553 gpiod_set_value(lcd->reset_gpio, 1);
556 acx565akm_read(lcd, MIPI_DCS_GET_DISPLAY_STATUS, (u8 *)&value, 4);
558 lcd->enabled = (status & (1 << 17)) && (status & (1 << 10));
560 dev_dbg(&lcd->spi->dev,
562 lcd->enabled ? "enabled" : "disabled ", status);
564 acx565akm_read(lcd, MIPI_DCS_GET_DISPLAY_ID, lcd->display_id, 3);
565 dev_dbg(&lcd->spi->dev, "MIPI display ID: %3phN\n", lcd->display_id);
567 switch (lcd->display_id[0]) {
569 lcd->model = MIPID_VER_ACX565AKM;
570 lcd->name = "acx565akm";
571 lcd->has_bc = 1;
572 lcd->has_cabc = 1;
575 lcd->model = MIPID_VER_L4F00311;
576 lcd->name = "l4f00311";
579 lcd->model = MIPID_VER_LPH8923;
580 lcd->name = "lph8923";
583 lcd->model = MIPID_VER_LS041Y3;
584 lcd->name = "ls041y3";
587 lcd->name = "unknown";
588 dev_err(&lcd->spi->dev, "unknown display ID\n");
593 lcd->revision = lcd->display_id[1];
595 dev_info(&lcd->spi->dev, "%s rev %02x panel detected\n",
596 lcd->name, lcd->revision);
599 if (!lcd->enabled)
600 gpiod_set_value(lcd->reset_gpio, 0);
607 struct acx565akm_panel *lcd;
610 lcd = devm_drm_panel_alloc(&spi->dev, struct acx565akm_panel, panel,
612 if (IS_ERR(lcd))
613 return PTR_ERR(lcd);
615 spi_set_drvdata(spi, lcd);
618 lcd->spi = spi;
619 mutex_init(&lcd->mutex);
621 lcd->reset_gpio = devm_gpiod_get(&spi->dev, "reset", GPIOD_OUT_HIGH);
622 if (IS_ERR(lcd->reset_gpio)) {
624 return PTR_ERR(lcd->reset_gpio);
627 ret = acx565akm_detect(lcd);
633 if (lcd->has_bc) {
634 ret = acx565akm_backlight_init(lcd);
639 drm_panel_add(&lcd->panel);
646 struct acx565akm_panel *lcd = spi_get_drvdata(spi);
648 drm_panel_remove(&lcd->panel);
650 if (lcd->has_bc)
651 acx565akm_backlight_cleanup(lcd);