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OMAPDSS: panel-dsi-cm: Add DT support

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Add DT support for panel-dsi-cm.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
This commit is contained in:
Tomi Valkeinen 2013-07-30 10:34:16 +03:00
parent 6274a61978
commit cdeeaca2a1
1 changed files with 56 additions and 4 deletions
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60
drivers/video/omap2/displays-new/panel-dsi-cm.c
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@ -22,6 +22,8 @@
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <video/omapdss.h>
#include <video/omap-panel-data.h>
@ -595,10 +597,13 @@ static int dsicm_power_on(struct panel_drv_data *ddata)
.lp_clk_max = 10000000,
};
r = in->ops.dsi->configure_pins(in, &ddata->pin_config);
if (r) {
dev_err(&ddata->pdev->dev, "failed to configure DSI pins\n");
goto err0;
if (ddata->pin_config.num_pins > 0) {
r = in->ops.dsi->configure_pins(in, &ddata->pin_config);
if (r) {
dev_err(&ddata->pdev->dev,
"failed to configure DSI pins\n");
goto err0;
}
}
r = in->ops.dsi->set_config(in, &dsi_config);
@ -1156,6 +1161,41 @@ static int dsicm_probe_pdata(struct platform_device *pdev)
return 0;
}
static int dsicm_probe_of(struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
struct panel_drv_data *ddata = platform_get_drvdata(pdev);
struct omap_dss_device *in;
int gpio;
gpio = of_get_named_gpio(node, "reset-gpios", 0);
if (!gpio_is_valid(gpio)) {
dev_err(&pdev->dev, "failed to parse reset gpio\n");
return gpio;
}
ddata->reset_gpio = gpio;
gpio = of_get_named_gpio(node, "te-gpios", 0);
if (gpio_is_valid(gpio) || gpio == -ENOENT) {
ddata->ext_te_gpio = gpio;
} else {
dev_err(&pdev->dev, "failed to parse TE gpio\n");
return gpio;
}
in = omapdss_of_find_source_for_first_ep(node);
if (IS_ERR(in)) {
dev_err(&pdev->dev, "failed to find video source\n");
return PTR_ERR(in);
}
ddata->in = in;
/* TODO: ulps, backlight */
return 0;
}
static int dsicm_probe(struct platform_device *pdev)
{
struct backlight_properties props;
@ -1178,6 +1218,10 @@ static int dsicm_probe(struct platform_device *pdev)
r = dsicm_probe_pdata(pdev);
if (r)
return r;
} else if (pdev->dev.of_node) {
r = dsicm_probe_of(pdev);
if (r)
return r;
} else {
return -ENODEV;
}
@ -1320,12 +1364,20 @@ static int __exit dsicm_remove(struct platform_device *pdev)
return 0;
}
static const struct of_device_id dsicm_of_match[] = {
{ .compatible = "omapdss,panel-dsi-cm", },
{},
};
MODULE_DEVICE_TABLE(of, dsicm_of_match);
static struct platform_driver dsicm_driver = {
.probe = dsicm_probe,
.remove = __exit_p(dsicm_remove),
.driver = {
.name = "panel-dsi-cm",
.owner = THIS_MODULE,
.of_match_table = dsicm_of_match,
},
};