In the DT data we model the TFP410 chip and the DVI connector. For the moment we have only 1 driver to handle those both.
Signed-off-by: Tomi Valkeinen <[email protected]> --- drivers/video/omap2/displays/panel-tfp410.c | 71 +++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) diff --git a/drivers/video/omap2/displays/panel-tfp410.c b/drivers/video/omap2/displays/panel-tfp410.c index a225ea1..a087489c 100644 --- a/drivers/video/omap2/displays/panel-tfp410.c +++ b/drivers/video/omap2/displays/panel-tfp410.c @@ -24,6 +24,8 @@ #include <linux/gpio.h> #include <linux/platform_device.h> #include <drm/drm_edid.h> +#include <linux/of_gpio.h> +#include <linux/of_i2c.h> #include <video/omap-panel-tfp410.h> @@ -112,6 +114,63 @@ static int tfp410_probe_pdata(struct platform_device *pdev) return 0; } +static int tfp410_probe_of(struct platform_device *pdev) +{ + struct device_node *node = pdev->dev.of_node; + struct panel_drv_data *ddata = dev_get_drvdata(&pdev->dev); + struct device_node *adapter_node; + struct i2c_adapter *adapter; + int r, gpio, datalines; + + ddata->name = node->name; + + node = of_parse_phandle(node, "video-source", 0); + if (!node) { + dev_err(&pdev->dev, "failed to parse video source\n"); + return -ENODEV; + } + + gpio = of_get_gpio(node, 0); + + if (gpio_is_valid(gpio)) { + r = devm_gpio_request_one(&pdev->dev, gpio, + GPIOF_OUT_INIT_LOW, "tfp410 pd"); + if (r) { + dev_err(&pdev->dev, "Failed to request PD GPIO %d\n", + gpio); + return r; + } + + ddata->pd_gpio = gpio; + } else if (gpio == -ENOENT) { + ddata->pd_gpio = -1; + } else { + dev_err(&pdev->dev, "failed to parse PD gpio\n"); + return gpio; + } + + r = of_property_read_u32(node, "data-lines", &datalines); + if (r) { + dev_err(&pdev->dev, "failed to parse datalines"); + return r; + } + + ddata->data_lines = datalines; + + adapter_node = of_parse_phandle(node, "i2c-bus", 0); + if (adapter_node) { + adapter = of_find_i2c_adapter_by_node(adapter_node); + if (adapter == NULL) { + dev_err(&pdev->dev, "failed to parse i2c-bus\n"); + return -EINVAL; + } + + ddata->i2c_adapter = adapter; + } + + return 0; +} + static int tfp410_probe(struct platform_device *pdev) { struct tfp410_platform_data *pdata = dev_get_platdata(&pdev->dev); @@ -131,6 +190,10 @@ static int tfp410_probe(struct platform_device *pdev) r = tfp410_probe_pdata(pdev); if (r) return r; + } else if (pdev->dev.of_node) { + r = tfp410_probe_of(pdev); + if (r) + return r; } else { return -ENODEV; } @@ -380,12 +443,20 @@ static struct omap_dss_driver tfp410_driver = { .detect = tfp410_detect, }; +static const struct of_device_id tfp410_of_match[] = { + { + .compatible = "ti,dvi_connector", + }, + {}, +}; + static struct platform_driver tfp410_platform_driver = { .probe = tfp410_probe, .remove = __exit_p(tfp410_remove), .driver = { .name = "tfp410", .owner = THIS_MODULE, + .of_match_table = tfp410_of_match, }, }; -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
