diff options
Diffstat (limited to 'drivers/video/omap2/displays/panel-n8x0.c')
| -rw-r--r-- | drivers/video/omap2/displays/panel-n8x0.c | 616 |
1 files changed, 0 insertions, 616 deletions
diff --git a/drivers/video/omap2/displays/panel-n8x0.c b/drivers/video/omap2/displays/panel-n8x0.c deleted file mode 100644 index 1d525fc84db9..000000000000 --- a/drivers/video/omap2/displays/panel-n8x0.c +++ /dev/null @@ -1,616 +0,0 @@ -/* #define DEBUG */ - -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/slab.h> -#include <linux/gpio.h> -#include <linux/spi/spi.h> -#include <linux/fb.h> - -#include <video/omapdss.h> -#include <video/omap-panel-data.h> - -#define BLIZZARD_REV_CODE 0x00 -#define BLIZZARD_CONFIG 0x02 -#define BLIZZARD_PLL_DIV 0x04 -#define BLIZZARD_PLL_LOCK_RANGE 0x06 -#define BLIZZARD_PLL_CLOCK_SYNTH_0 0x08 -#define BLIZZARD_PLL_CLOCK_SYNTH_1 0x0a -#define BLIZZARD_PLL_MODE 0x0c -#define BLIZZARD_CLK_SRC 0x0e -#define BLIZZARD_MEM_BANK0_ACTIVATE 0x10 -#define BLIZZARD_MEM_BANK0_STATUS 0x14 -#define BLIZZARD_PANEL_CONFIGURATION 0x28 -#define BLIZZARD_HDISP 0x2a -#define BLIZZARD_HNDP 0x2c -#define BLIZZARD_VDISP0 0x2e -#define BLIZZARD_VDISP1 0x30 -#define BLIZZARD_VNDP 0x32 -#define BLIZZARD_HSW 0x34 -#define BLIZZARD_VSW 0x38 -#define BLIZZARD_DISPLAY_MODE 0x68 -#define BLIZZARD_INPUT_WIN_X_START_0 0x6c -#define BLIZZARD_DATA_SOURCE_SELECT 0x8e -#define BLIZZARD_DISP_MEM_DATA_PORT 0x90 -#define BLIZZARD_DISP_MEM_READ_ADDR0 0x92 -#define BLIZZARD_POWER_SAVE 0xE6 -#define BLIZZARD_NDISP_CTRL_STATUS 0xE8 - -/* Data source select */ -/* For S1D13745 */ -#define BLIZZARD_SRC_WRITE_LCD_BACKGROUND 0x00 -#define BLIZZARD_SRC_WRITE_LCD_DESTRUCTIVE 0x01 -#define BLIZZARD_SRC_WRITE_OVERLAY_ENABLE 0x04 -#define BLIZZARD_SRC_DISABLE_OVERLAY 0x05 -/* For S1D13744 */ -#define BLIZZARD_SRC_WRITE_LCD 0x00 -#define BLIZZARD_SRC_BLT_LCD 0x06 - -#define BLIZZARD_COLOR_RGB565 0x01 -#define BLIZZARD_COLOR_YUV420 0x09 - -#define BLIZZARD_VERSION_S1D13745 0x01 /* Hailstorm */ -#define BLIZZARD_VERSION_S1D13744 0x02 /* Blizzard */ - -#define MIPID_CMD_READ_DISP_ID 0x04 -#define MIPID_CMD_READ_RED 0x06 -#define MIPID_CMD_READ_GREEN 0x07 -#define MIPID_CMD_READ_BLUE 0x08 -#define MIPID_CMD_READ_DISP_STATUS 0x09 -#define MIPID_CMD_RDDSDR 0x0F -#define MIPID_CMD_SLEEP_IN 0x10 -#define MIPID_CMD_SLEEP_OUT 0x11 -#define MIPID_CMD_DISP_OFF 0x28 -#define MIPID_CMD_DISP_ON 0x29 - -static struct panel_drv_data { - struct mutex lock; - - struct omap_dss_device *dssdev; - struct spi_device *spidev; - - int blizzard_ver; -} s_drv_data; - - -static inline -struct panel_n8x0_data *get_board_data(const struct omap_dss_device *dssdev) -{ - return dssdev->data; -} - -static inline -struct panel_drv_data *get_drv_data(const struct omap_dss_device *dssdev) -{ - return &s_drv_data; -} - - -static inline void blizzard_cmd(u8 cmd) -{ - omap_rfbi_write_command(&cmd, 1); -} - -static inline void blizzard_write(u8 cmd, const u8 *buf, int len) -{ - omap_rfbi_write_command(&cmd, 1); - omap_rfbi_write_data(buf, len); -} - -static inline void blizzard_read(u8 cmd, u8 *buf, int len) -{ - omap_rfbi_write_command(&cmd, 1); - omap_rfbi_read_data(buf, len); -} - -static u8 blizzard_read_reg(u8 cmd) -{ - u8 data; - blizzard_read(cmd, &data, 1); - return data; -} - -static void blizzard_ctrl_setup_update(struct omap_dss_device *dssdev, - int x, int y, int w, int h) -{ - struct panel_drv_data *ddata = get_drv_data(dssdev); - u8 tmp[18]; - int x_end, y_end; - - x_end = x + w - 1; - y_end = y + h - 1; - - tmp[0] = x; - tmp[1] = x >> 8; - tmp[2] = y; - tmp[3] = y >> 8; - tmp[4] = x_end; - tmp[5] = x_end >> 8; - tmp[6] = y_end; - tmp[7] = y_end >> 8; - - /* scaling? */ - tmp[8] = x; - tmp[9] = x >> 8; - tmp[10] = y; - tmp[11] = y >> 8; - tmp[12] = x_end; - tmp[13] = x_end >> 8; - tmp[14] = y_end; - tmp[15] = y_end >> 8; - - tmp[16] = BLIZZARD_COLOR_RGB565; - - if (ddata->blizzard_ver == BLIZZARD_VERSION_S1D13745) - tmp[17] = BLIZZARD_SRC_WRITE_LCD_BACKGROUND; - else - tmp[17] = ddata->blizzard_ver == BLIZZARD_VERSION_S1D13744 ? - BLIZZARD_SRC_WRITE_LCD : - BLIZZARD_SRC_WRITE_LCD_DESTRUCTIVE; - - omapdss_rfbi_set_pixel_size(dssdev, 16); - omapdss_rfbi_set_data_lines(dssdev, 8); - - omap_rfbi_configure(dssdev); - - blizzard_write(BLIZZARD_INPUT_WIN_X_START_0, tmp, 18); - - omapdss_rfbi_set_pixel_size(dssdev, 16); - omapdss_rfbi_set_data_lines(dssdev, 16); - - omap_rfbi_configure(dssdev); -} - -static void mipid_transfer(struct spi_device *spi, int cmd, const u8 *wbuf, - int wlen, u8 *rbuf, int rlen) -{ - struct spi_message m; - struct spi_transfer *x, xfer[4]; - u16 w; - int r; - - spi_message_init(&m); - - memset(xfer, 0, sizeof(xfer)); - x = &xfer[0]; - - cmd &= 0xff; - x->tx_buf = &cmd; - x->bits_per_word = 9; - x->len = 2; - spi_message_add_tail(x, &m); - - if (wlen) { - x++; - x->tx_buf = wbuf; - x->len = wlen; - x->bits_per_word = 9; - spi_message_add_tail(x, &m); - } - - if (rlen) { - x++; - x->rx_buf = &w; - x->len = 1; - spi_message_add_tail(x, &m); - - if (rlen > 1) { - /* Arrange for the extra clock before the first - * data bit. - */ - x->bits_per_word = 9; - x->len = 2; - - x++; - x->rx_buf = &rbuf[1]; - x->len = rlen - 1; - spi_message_add_tail(x, &m); - } - } - - r = spi_sync(spi, &m); - if (r < 0) - dev_dbg(&spi->dev, "spi_sync %d\n", r); - - if (rlen) - rbuf[0] = w & 0xff; -} - -static inline void mipid_cmd(struct spi_device *spi, int cmd) -{ - mipid_transfer(spi, cmd, NULL, 0, NULL, 0); -} - -static inline void mipid_write(struct spi_device *spi, - int reg, const u8 *buf, int len) -{ - mipid_transfer(spi, reg, buf, len, NULL, 0); -} - -static inline void mipid_read(struct spi_device *spi, - int reg, u8 *buf, int len) -{ - mipid_transfer(spi, reg, NULL, 0, buf, len); -} - -static void set_data_lines(struct spi_device *spi, int data_lines) -{ - u16 par; - - switch (data_lines) { - case 16: - par = 0x150; - break; - case 18: - par = 0x160; - break; - case 24: - par = 0x170; - break; - } - - mipid_write(spi, 0x3a, (u8 *)&par, 2); -} - -static void send_init_string(struct spi_device *spi) -{ - u16 initpar[] = { 0x0102, 0x0100, 0x0100 }; - mipid_write(spi, 0xc2, (u8 *)initpar, sizeof(initpar)); -} - -static void send_display_on(struct spi_device *spi) -{ - mipid_cmd(spi, MIPID_CMD_DISP_ON); -} - -static void send_display_off(struct spi_device *spi) -{ - mipid_cmd(spi, MIPID_CMD_DISP_OFF); -} - -static void send_sleep_out(struct spi_device *spi) -{ - mipid_cmd(spi, MIPID_CMD_SLEEP_OUT); - msleep(120); -} - -static void send_sleep_in(struct spi_device *spi) -{ - mipid_cmd(spi, MIPID_CMD_SLEEP_IN); - msleep(50); -} - -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); - - omapdss_rfbi_set_size(dssdev, dssdev->panel.timings.x_res, - dssdev->panel.timings.y_res); - omapdss_rfbi_set_pixel_size(dssdev, dssdev->ctrl.pixel_size); - omapdss_rfbi_set_data_lines(dssdev, dssdev->phy.rfbi.data_lines); - omapdss_rfbi_set_interface_timings(dssdev, &dssdev->ctrl.rfbi_timings); - - 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: - gpio_direction_output(bdata->ctrl_pwrdown, 0); - return r; -} - -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); - - /* - * 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 const struct rfbi_timings n8x0_panel_timings = { - .cs_on_time = 0, - - .we_on_time = 9000, - .we_off_time = 18000, - .we_cycle_time = 36000, - - .re_on_time = 9000, - .re_off_time = 27000, - .re_cycle_time = 36000, - - .access_time = 27000, - .cs_off_time = 36000, - - .cs_pulse_width = 0, -}; - -static int n8x0_panel_probe(struct omap_dss_device *dssdev) -{ - struct panel_n8x0_data *bdata = get_board_data(dssdev); - struct panel_drv_data *ddata; - int r; - - dev_dbg(dssdev->dev, "probe\n"); - - if (!bdata) - return -EINVAL; - - s_drv_data.dssdev = dssdev; - - ddata = &s_drv_data; - - mutex_init(&ddata->lock); - - dssdev->panel.timings.x_res = 800; - dssdev->panel.timings.y_res = 480; - dssdev->ctrl.pixel_size = 16; - dssdev->ctrl.rfbi_timings = n8x0_panel_timings; - dssdev->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE; - - if (gpio_is_valid(bdata->panel_reset)) { - r = devm_gpio_request_one(dssdev->dev, bdata->panel_reset, - GPIOF_OUT_INIT_LOW, "PANEL RESET"); - if (r) - return r; - } - - if (gpio_is_valid(bdata->ctrl_pwrdown)) { - r = devm_gpio_request_one(dssdev->dev, bdata->ctrl_pwrdown, - GPIOF_OUT_INIT_LOW, "PANEL PWRDOWN"); - if (r) - return r; - } - - return 0; -} - -static void n8x0_panel_remove(struct omap_dss_device *dssdev) -{ - dev_dbg(dssdev->dev, "remove\n"); - - dev_set_drvdata(dssdev->dev, NULL); -} - -static int n8x0_panel_enable(struct omap_dss_device *dssdev) -{ - struct panel_drv_data *ddata = get_drv_data(dssdev); - int r; - - dev_dbg(dssdev->dev, "enable\n"); - - mutex_lock(&ddata->lock); - - rfbi_bus_lock(); - - r = n8x0_panel_power_on(dssdev); - - rfbi_bus_unlock(); - - if (r) { - mutex_unlock(&ddata->lock); - return r; - } - - dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; - - mutex_unlock(&ddata->lock); - - return 0; -} - -static void n8x0_panel_disable(struct omap_dss_device *dssdev) -{ - struct panel_drv_data *ddata = get_drv_data(dssdev); - - dev_dbg(dssdev->dev, "disable\n"); - - mutex_lock(&ddata->lock); - - rfbi_bus_lock(); - - n8x0_panel_power_off(dssdev); - - rfbi_bus_unlock(); - - dssdev->state = OMAP_DSS_DISPLAY_DISABLED; - - mutex_unlock(&ddata->lock); -} - -static void n8x0_panel_get_resolution(struct omap_dss_device *dssdev, - u16 *xres, u16 *yres) -{ - *xres = dssdev->panel.timings.x_res; - *yres = dssdev->panel.timings.y_res; -} - -static void update_done(void *data) -{ - rfbi_bus_unlock(); -} - -static int n8x0_panel_update(struct omap_dss_device *dssdev, - u16 x, u16 y, u16 w, u16 h) -{ - struct panel_drv_data *ddata = get_drv_data(dssdev); - u16 dw, dh; - - dev_dbg(dssdev->dev, "update\n"); - - dw = dssdev->panel.timings.x_res; - dh = dssdev->panel.timings.y_res; - - if (x != 0 || y != 0 || w != dw || h != dh) { - dev_err(dssdev->dev, "invalid update region %d, %d, %d, %d\n", - x, y, w, h); - return -EINVAL; - } - - mutex_lock(&ddata->lock); - rfbi_bus_lock(); - - blizzard_ctrl_setup_update(dssdev, x, y, w, h); - - omap_rfbi_update(dssdev, update_done, NULL); - - mutex_unlock(&ddata->lock); - - return 0; -} - -static int n8x0_panel_sync(struct omap_dss_device *dssdev) -{ - struct panel_drv_data *ddata = get_drv_data(dssdev); - - dev_dbg(dssdev->dev, "sync\n"); - - mutex_lock(&ddata->lock); - rfbi_bus_lock(); - rfbi_bus_unlock(); - mutex_unlock(&ddata->lock); - - return 0; -} - -static struct omap_dss_driver n8x0_panel_driver = { - .probe = n8x0_panel_probe, - .remove = n8x0_panel_remove, - - .enable = n8x0_panel_enable, - .disable = n8x0_panel_disable, - - .update = n8x0_panel_update, - .sync = n8x0_panel_sync, - - .get_resolution = n8x0_panel_get_resolution, - .get_recommended_bpp = omapdss_default_get_recommended_bpp, - - .driver = { - .name = "n8x0_panel", - .owner = THIS_MODULE, - }, -}; - -/* PANEL */ - -static int mipid_spi_probe(struct spi_device *spi) -{ - int r; - - dev_dbg(&spi->dev, "mipid_spi_probe\n"); - - spi->mode = SPI_MODE_0; - - s_drv_data.spidev = spi; - - r = omap_dss_register_driver(&n8x0_panel_driver); - if (r) - pr_err("n8x0_panel: dss driver registration failed\n"); - - return r; -} - -static int mipid_spi_remove(struct spi_device *spi) -{ - dev_dbg(&spi->dev, "mipid_spi_remove\n"); - omap_dss_unregister_driver(&n8x0_panel_driver); - return 0; -} - -static struct spi_driver mipid_spi_driver = { - .driver = { - .name = "lcd_mipid", - .owner = THIS_MODULE, - }, - .probe = mipid_spi_probe, - .remove = mipid_spi_remove, -}; -module_spi_driver(mipid_spi_driver); - -MODULE_LICENSE("GPL"); |