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path: root/drivers/video/omap2/dss/sdi.c
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Diffstat (limited to 'drivers/video/omap2/dss/sdi.c')
-rw-r--r--drivers/video/omap2/dss/sdi.c47
1 files changed, 46 insertions, 1 deletions
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index 800b2bb4ed93..911dcc9173a6 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -26,6 +26,7 @@
#include <linux/export.h>
#include <linux/platform_device.h>
#include <linux/string.h>
+#include <linux/of.h>
#include <video/omapdss.h>
#include "dss.h"
@@ -41,12 +42,14 @@ static struct {
int datapairs;
struct omap_dss_device output;
+
+ bool port_initialized;
} sdi;
struct sdi_clk_calc_ctx {
unsigned long pck_min, pck_max;
- unsigned long long fck;
+ unsigned long fck;
struct dispc_clock_info dispc_cinfo;
};
@@ -386,3 +389,45 @@ void __exit sdi_uninit_platform_driver(void)
{
platform_driver_unregister(&omap_sdi_driver);
}
+
+int __init sdi_init_port(struct platform_device *pdev, struct device_node *port)
+{
+ struct device_node *ep;
+ u32 datapairs;
+ int r;
+
+ ep = omapdss_of_get_next_endpoint(port, NULL);
+ if (!ep)
+ return 0;
+
+ r = of_property_read_u32(ep, "datapairs", &datapairs);
+ if (r) {
+ DSSERR("failed to parse datapairs\n");
+ goto err_datapairs;
+ }
+
+ sdi.datapairs = datapairs;
+
+ of_node_put(ep);
+
+ sdi.pdev = pdev;
+
+ sdi_init_output(pdev);
+
+ sdi.port_initialized = true;
+
+ return 0;
+
+err_datapairs:
+ of_node_put(ep);
+
+ return r;
+}
+
+void __exit sdi_uninit_port(void)
+{
+ if (!sdi.port_initialized)
+ return;
+
+ sdi_uninit_output(sdi.pdev);
+}