Hi Tomi,
On 05/15/2014 12:10 PM, Tomi Valkeinen wrote:
> Add DT support for panel-lgphilips-lb035q02.
>
> We disable the use of the backlight_gpio as it should be handled via
> backlight framework with DT boots.
>
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
> ---
> .../omap2/displays-new/panel-lgphilips-lb035q02.c | 44 +++++++++++++++++++++-
> 1 file changed, 43 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c b/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c
> index 6e6acd696a70..76c4fdc51c31 100644
> --- a/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c
> +++ b/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c
> @@ -159,7 +159,8 @@ static int lb035q02_enable(struct omap_dss_device *dssdev)
> if (omapdss_device_is_enabled(dssdev))
> return 0;
>
> - in->ops.dpi->set_data_lines(in, ddata->data_lines);
> + if (ddata->data_lines)
> + in->ops.dpi->set_data_lines(in, ddata->data_lines);
> in->ops.dpi->set_timings(in, &ddata->videomode);
>
> r = in->ops.dpi->enable(in);
> @@ -277,6 +278,35 @@ err_gpio:
> return r;
> }
>
> +static int lb035q02_probe_of(struct spi_device *spi)
> +{
> + struct device_node *node = spi->dev.of_node;
> + struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);
> + struct omap_dss_device *in;
> + struct gpio_desc *gpio;
> +
> + gpio = devm_gpiod_get(&spi->dev, "enable");
> + if (IS_ERR(gpio)) {
> + dev_err(&spi->dev, "failed to parse enable gpio\n");
> + return PTR_ERR(gpio);
> + } else {
> + gpiod_direction_output(gpio, 0);
> + ddata->enable_gpio = gpio;
> + }
> +
> + ddata->backlight_gpio = -ENOENT;
> +
> + in = omapdss_of_find_source_for_first_ep(node);
> + if (IS_ERR(in)) {
> + dev_err(&spi->dev, "failed to find video source\n");
> + return PTR_ERR(in);
> + }
> +
> + ddata->in = in;
> +
> + return 0;
> +}
> +
> static int lb035q02_panel_spi_probe(struct spi_device *spi)
> {
> struct panel_drv_data *ddata;
> @@ -295,6 +325,10 @@ static int lb035q02_panel_spi_probe(struct spi_device *spi)
> r = lb035q02_probe_pdata(spi);
> if (r)
> return r;
> + } else if (spi->dev.of_node) {
> + r = lb035q02_probe_of(spi);
> + if (r)
> + return r;
> } else {
> return -ENODEV;
> }
> @@ -346,6 +380,13 @@ static int lb035q02_panel_spi_remove(struct spi_device *spi)
> return 0;
> }
>
> +static const struct of_device_id lb035q02_of_match[] = {
> + { .compatible = "omapdss,lgphilips,lb035q02", },
> + {},
> +};
> +
> +MODULE_DEVICE_TABLE(of, lb035q02_of_match);
> +
> static struct spi_driver lb035q02_spi_driver = {
> .probe = lb035q02_panel_spi_probe,
> .remove = lb035q02_panel_spi_remove,
> @@ -357,6 +398,7 @@ static struct spi_driver lb035q02_spi_driver = {
>
.of_match_table = lb035q02_of_match,
is missing.
> module_spi_driver(lb035q02_spi_driver);
>
> +MODULE_ALIAS("spi:lgphilips,lb035q02");
> MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@xxxxxx>");
> MODULE_DESCRIPTION("LG.Philips LB035Q02 LCD Panel driver");
> MODULE_LICENSE("GPL");
>
Regards,
Florian
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