static void n8x0_panel_power_off(struct omap_dss_device *dssdev) { struct panel_n8x0_data *bdata = get_board_data(dssdev); struct panel_drv_data *ddata = get_drv_data(dssdev); struct spi_device *spi = ddata->spidev; if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) return; send_display_off(spi); send_sleep_in(spi); if (bdata->platform_disable) bdata->platform_disable(dssdev); gpio_direction_output(bdata->ctrl_pwrdown, 0); omapdss_rfbi_display_disable(dssdev); }
static void n8x0_panel_power_off(struct omap_dss_device *dssdev) { struct panel_n8x0_data *bdata = get_board_data(dssdev); struct panel_drv_data *ddata = get_drv_data(dssdev); struct spi_device *spi = ddata->spidev; if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) return; send_display_off(spi); send_sleep_in(spi); if (bdata->platform_disable) bdata->platform_disable(dssdev); /* * HACK: we should turn off the panel here, but there is some problem * with the initialization sequence, and we fail to init the panel if we * have turned it off */ /* gpio_direction_output(bdata->panel_reset, 0); */ gpio_direction_output(bdata->ctrl_pwrdown, 0); omapdss_rfbi_display_disable(dssdev); }
static int n8x0_panel_power_on(struct omap_dss_device *dssdev) { int r; struct panel_n8x0_data *bdata = get_board_data(dssdev); struct panel_drv_data *ddata = get_drv_data(dssdev); struct spi_device *spi = ddata->spidev; u8 rev, conf; u8 display_id[3]; const char *panel_name; if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) return 0; gpio_direction_output(bdata->ctrl_pwrdown, 1); if (bdata->platform_enable) { r = bdata->platform_enable(dssdev); if (r) goto err_plat_en; } r = omapdss_rfbi_display_enable(dssdev); if (r) goto err_rfbi_en; rev = blizzard_read_reg(BLIZZARD_REV_CODE); conf = blizzard_read_reg(BLIZZARD_CONFIG); switch (rev & 0xfc) { case 0x9c: ddata->blizzard_ver = BLIZZARD_VERSION_S1D13744; dev_info(&dssdev->dev, "s1d13744 LCD controller rev %d " "initialized (CNF pins %x)\n", rev & 0x03, conf & 0x07); break; case 0xa4: ddata->blizzard_ver = BLIZZARD_VERSION_S1D13745; dev_info(&dssdev->dev, "s1d13745 LCD controller rev %d " "initialized (CNF pins %x)\n", rev & 0x03, conf & 0x07); break; default: dev_err(&dssdev->dev, "invalid s1d1374x revision %02x\n", rev); r = -ENODEV; goto err_inv_chip; } /* panel */ gpio_direction_output(bdata->panel_reset, 1); mipid_read(spi, MIPID_CMD_READ_DISP_ID, display_id, 3); dev_dbg(&spi->dev, "MIPI display ID: %02x%02x%02x\n", display_id[0], display_id[1], display_id[2]); switch (display_id[0]) { case 0x45: panel_name = "lph8923"; break; case 0x83: panel_name = "ls041y3"; break; default: dev_err(&dssdev->dev, "invalid display ID 0x%x\n", display_id[0]); r = -ENODEV; goto err_inv_panel; } dev_info(&dssdev->dev, "%s rev %02x LCD detected\n", panel_name, display_id[1]); send_sleep_out(spi); send_init_string(spi); set_data_lines(spi, 24); send_display_on(spi); return 0; err_inv_panel: /* * HACK: we should turn off the panel here, but there is some problem * with the initialization sequence, and we fail to init the panel if we * have turned it off */ /* gpio_direction_output(bdata->panel_reset, 0); */ err_inv_chip: omapdss_rfbi_display_disable(dssdev); err_rfbi_en: if (bdata->platform_disable) bdata->platform_disable(dssdev); err_plat_en: gpio_direction_output(bdata->ctrl_pwrdown, 0); return r; }