int ili9320_probe_spi(struct spi_device *spi,
struct ili9320_client *client)
{
struct ili9320_platdata *cfg = dev_get_platdata(&spi->dev);
struct device *dev = &spi->dev;
struct ili9320 *ili;
struct lcd_device *lcd;
int ret = 0;
/* verify we where given some information */
if (cfg == NULL) {
dev_err(dev, "no platform data supplied\n");
return -EINVAL;
}
if (cfg->hsize <= 0 || cfg->vsize <= 0 || cfg->reset == NULL) {
dev_err(dev, "invalid platform data supplied\n");
return -EINVAL;
}
/* allocate and initialse our state */
ili = devm_kzalloc(&spi->dev, sizeof(struct ili9320), GFP_KERNEL);
if (ili == NULL) {
dev_err(dev, "no memory for device\n");
return -ENOMEM;
}
ili->access.spi.id = ILI9320_SPI_IDCODE | ILI9320_SPI_ID(1);
ili->dev = dev;
ili->client = client;
ili->power = FB_BLANK_POWERDOWN;
ili->platdata = cfg;
spi_set_drvdata(spi, ili);
ili9320_setup_spi(ili, spi);
lcd = devm_lcd_device_register(&spi->dev, "ili9320", dev, ili,
&ili9320_ops);
if (IS_ERR(lcd)) {
dev_err(dev, "failed to register lcd device\n");
return PTR_ERR(lcd);
}
ili->lcd = lcd;
dev_info(dev, "initialising %s\n", client->name);
ret = ili9320_power(ili, FB_BLANK_UNBLANK);
if (ret != 0) {
dev_err(dev, "failed to set lcd power state\n");
return ret;
}
return 0;
}
int ili9320_resume(struct ili9320 *lcd)
{
dev_info(lcd->dev, "resuming from power state %d\n", lcd->power);
if (lcd->platdata->suspend == ILI9320_SUSPEND_DEEP)
ili9320_write(lcd, ILI9320_POWER1, 0x00);
return ili9320_power(lcd, FB_BLANK_UNBLANK);
}
int __devexit ili9320_remove(struct ili9320 *ili)
{
ili9320_power(ili, FB_BLANK_POWERDOWN);
lcd_device_unregister(ili->lcd);
kfree(ili);
return 0;
}
int ili9320_suspend(struct ili9320 *lcd)
{
int ret;
ret = ili9320_power(lcd, FB_BLANK_POWERDOWN);
if (lcd->platdata->suspend == ILI9320_SUSPEND_DEEP) {
ili9320_write(lcd, ILI9320_POWER1, lcd->power1 |
ILI9320_POWER1_SLP |
ILI9320_POWER1_DSTB);
lcd->initialised = 0;
}
return ret;
}
int ili9320_suspend(struct ili9320 *lcd, pm_message_t state)
{
int ret;
dev_dbg(lcd->dev, "%s: event %d\n", __func__, state.event);
if (state.event == PM_EVENT_SUSPEND) {
ret = ili9320_power(lcd, FB_BLANK_POWERDOWN);
if (lcd->platdata->suspend == ILI9320_SUSPEND_DEEP) {
ili9320_write(lcd, ILI9320_POWER1, lcd->power1 |
ILI9320_POWER1_SLP |
ILI9320_POWER1_DSTB);
lcd->initialised = 0;
}
return ret;
}
return 0;
}
/* Power down all displays on reboot, poweroff or halt */
void ili9320_shutdown(struct ili9320 *lcd)
{
ili9320_power(lcd, FB_BLANK_POWERDOWN);
}
int ili9320_remove(struct ili9320 *ili)
{
ili9320_power(ili, FB_BLANK_POWERDOWN);
return 0;
}
static int ili9320_set_power(struct lcd_device *ld, int power)
{
struct ili9320 *lcd = to_our_lcd(ld);
return ili9320_power(lcd, power);
}
