On Mon, Nov 23, 2009 at 7:41 PM, TAO HU <tghk48@xxxxxxxxxxxx> wrote:
> Hi,
>
> One idea as below
>
> struct spi_dss_device {
> struct omap_dss_device dss_dev;
> struct spi_dss_dev_priv * spi_data;
> } spi_dss_dev;
Hm, omap_dss_register_device() takes omap_dss_driver, not
omap_dss_device. Anyway that wouldn't work if there were 2 instances
of same panel in one system I guess, as 2 different spi_data instances
would probe, when there is only one omap_dss_driver.
Instead I'm thinking to link omap_dss_device with spi in board file
itself by (ab)using platform_data:
static struct omap_dss_device pandora_lcd_device = {
...
};
struct spi_board_info pandora_spi_board_info = {
.bus_num = 1,
...
.platform_data = pandora_lcd_device,
};
Then in panel driver:
int spi_probe(struct spi_device *spi)
{
struct omap_dss_device *dssdev = spi->dev.platform_data;
dev_set_drvdata(&dssdev->dev, spi);
}
static int lcd_probe(struct omap_dss_device *dssdev)
{
struct spi_device *spi = dev_get_drvdata(&dssdev->dev);
}
Tomi, does that look reasonable to you?
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