static unsigned get_hw_cabc_mode(struct acx565akm_device *md)
{
u8 cabc_ctrl;
acx565akm_read(md, MIPID_CMD_READ_CABC, &cabc_ctrl, 1);
return cabc_ctrl & 3;
}
static unsigned get_hw_cabc_mode(struct panel_drv_data *ddata)
{
u8 cabc_ctrl;
acx565akm_read(ddata, MIPID_CMD_READ_CABC, &cabc_ctrl, 1);
return cabc_ctrl & 3;
}
static int acx565akm_get_actual_brightness(struct acx565akm_device *md)
{
u8 bv;
acx565akm_read(md, MIPID_CMD_READ_DISP_BRIGHTNESS, &bv, 1);
return bv;
}
static int acx565akm_get_actual_brightness(struct panel_drv_data *ddata)
{
u8 bv;
acx565akm_read(ddata, MIPID_CMD_READ_DISP_BRIGHTNESS, &bv, 1);
return bv;
}
static void set_cabc_mode(struct acx565akm_device *md, unsigned mode)
{
u16 cabc_ctrl;
md->cabc_mode = mode;
if (!md->enabled)
return;
cabc_ctrl = 0;
acx565akm_read(md, MIPID_CMD_READ_CABC, (u8 *)&cabc_ctrl, 1);
cabc_ctrl &= ~3;
cabc_ctrl |= (1 << 8) | (mode & 3);
acx565akm_write(md, MIPID_CMD_WRITE_CABC, (u8 *)&cabc_ctrl, 2);
}
static int panel_enabled(struct acx565akm_device *md)
{
u32 disp_status;
int enabled;
acx565akm_read(md, MIPID_CMD_READ_DISP_STATUS, (u8 *)&disp_status, 4);
disp_status = __be32_to_cpu(disp_status);
enabled = (disp_status & (1 << 17)) && (disp_status & (1 << 10));
dev_dbg(&md->spi->dev,
"LCD panel %senabled by bootloader (status 0x%04x)\n",
enabled ? "" : "not ", disp_status);
return enabled;
}
static void set_cabc_mode(struct panel_drv_data *ddata, unsigned mode)
{
u16 cabc_ctrl;
ddata->cabc_mode = mode;
if (!ddata->enabled)
return;
cabc_ctrl = 0;
acx565akm_read(ddata, MIPID_CMD_READ_CABC, (u8 *)&cabc_ctrl, 1);
cabc_ctrl &= ~3;
cabc_ctrl |= (1 << 8) | (mode & 3);
acx565akm_write(ddata, MIPID_CMD_WRITE_CABC, (u8 *)&cabc_ctrl, 2);
}
static int panel_enabled(struct panel_drv_data *ddata)
{
__be32 v;
u32 disp_status;
int enabled;
acx565akm_read(ddata, MIPID_CMD_READ_DISP_STATUS, (u8 *)&v, 4);
disp_status = __be32_to_cpu(v);
enabled = (disp_status & (1 << 17)) && (disp_status & (1 << 10));
dev_dbg(&ddata->spi->dev,
"LCD panel %senabled by bootloader (status 0x%04x)\n",
enabled ? "" : "not ", disp_status);
return enabled;
}
static void enable_backlight_ctrl(struct acx565akm_device *md, int enable)
{
u16 ctrl;
acx565akm_read(md, MIPID_CMD_READ_CTRL_DISP, (u8 *)&ctrl, 1);
if (enable) {
ctrl |= CTRL_DISP_BRIGHTNESS_CTRL_ON |
CTRL_DISP_BACKLIGHT_ON;
} else {
ctrl &= ~(CTRL_DISP_BRIGHTNESS_CTRL_ON |
CTRL_DISP_BACKLIGHT_ON);
}
ctrl |= 1 << 8;
acx565akm_write(md, MIPID_CMD_WRITE_CTRL_DISP, (u8 *)&ctrl, 2);
}
static int panel_detect(struct acx565akm_device *md)
{
acx565akm_read(md, MIPID_CMD_READ_DISP_ID, md->display_id, 3); //SPI read from LCD_SPI(4:0)
dev_dbg(&md->spi->dev, "MIPI display ID: %02x%02x%02x\n",
md->display_id[0], md->display_id[1], md->display_id[2]);
/*
switch (md->display_id[0]) {
case 0x10:
md->model = MIPID_VER_ACX565AKM;
md->panel.name = "acx565akm";
md->has_bc = 1;
md->has_cabc = 1;
break;
case 0x29:
md->model = MIPID_VER_L4F00311;
md->panel.name = "l4f00311";
break;
case 0x45:
md->model = MIPID_VER_LPH8923;
md->panel.name = "lph8923";
break;
case 0x83:
md->model = MIPID_VER_LS041Y3;
md->panel.name = "ls041y3";
break;
default:
md->panel.name = "unknown"; //TianMa display will come here if no code change
dev_err(&md->spi->dev, "invalid display ID\n");
return -ENODEV;
}
*/
//if return here, the display didn't show content;
//a lot of efforts were done to find this, by Tom Xue
md->model = MIPID_VER_ACX565AKM;
md->panel.name = "acx565akm";
md->has_bc = 1;
md->has_cabc = 1;
md->revision = md->display_id[1];
pr_info("omapfb: %s rev %02x LCD detected\n", //can be seen via dmesg
md->panel.name, md->revision);
return 0;
}
static int panel_detect(struct panel_drv_data *ddata)
{
acx565akm_read(ddata, MIPID_CMD_READ_DISP_ID, ddata->display_id, 3);
dev_dbg(&ddata->spi->dev, "MIPI display ID: %02x%02x%02x\n",
ddata->display_id[0],
ddata->display_id[1],
ddata->display_id[2]);
switch (ddata->display_id[0]) {
case 0x10:
ddata->model = MIPID_VER_ACX565AKM;
ddata->name = "acx565akm";
ddata->has_bc = 1;
ddata->has_cabc = 1;
break;
case 0x29:
ddata->model = MIPID_VER_L4F00311;
ddata->name = "l4f00311";
break;
case 0x45:
ddata->model = MIPID_VER_LPH8923;
ddata->name = "lph8923";
break;
case 0x83:
ddata->model = MIPID_VER_LS041Y3;
ddata->name = "ls041y3";
break;
default:
ddata->name = "unknown";
dev_err(&ddata->spi->dev, "invalid display ID\n");
return -ENODEV;
}
ddata->revision = ddata->display_id[1];
dev_info(&ddata->spi->dev, "omapfb: %s rev %02x LCD detected\n",
ddata->name, ddata->revision);
return 0;
}
