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path: root/drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c
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Diffstat (limited to 'drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c')
-rw-r--r--drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c38
1 files changed, 15 insertions, 23 deletions
diff --git a/drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c b/drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c
index 34555801fa4c..bb5b680cabfe 100644
--- a/drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c
+++ b/drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c
@@ -61,16 +61,25 @@ static const struct videomode sharp_ls_vm = {
static int sharp_ls_connect(struct omap_dss_device *dssdev)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
- struct omap_dss_device *in = ddata->in;
+ struct omap_dss_device *in;
int r;
if (omapdss_device_is_connected(dssdev))
return 0;
+ in = omapdss_of_find_source_for_first_ep(dssdev->dev->of_node);
+ if (IS_ERR(in)) {
+ dev_err(dssdev->dev, "failed to find video source\n");
+ return PTR_ERR(in);
+ }
+
r = in->ops.dpi->connect(in, dssdev);
- if (r)
+ if (r) {
+ omap_dss_put_device(in);
return r;
+ }
+ ddata->in = in;
return 0;
}
@@ -83,6 +92,9 @@ static void sharp_ls_disconnect(struct omap_dss_device *dssdev)
return;
in->ops.dpi->disconnect(in, dssdev);
+
+ omap_dss_put_device(in);
+ ddata->in = NULL;
}
static int sharp_ls_enable(struct omap_dss_device *dssdev)
@@ -210,8 +222,6 @@ static int sharp_ls_get_gpio_of(struct device *dev, int index, int val,
static int sharp_ls_probe_of(struct platform_device *pdev)
{
struct panel_drv_data *ddata = platform_get_drvdata(pdev);
- struct device_node *node = pdev->dev.of_node;
- struct omap_dss_device *in;
int r;
ddata->vcc = devm_regulator_get(&pdev->dev, "envdd");
@@ -245,14 +255,6 @@ static int sharp_ls_probe_of(struct platform_device *pdev)
if (r)
return r;
- 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;
-
return 0;
}
@@ -268,9 +270,6 @@ static int sharp_ls_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, ddata);
- if (!pdev->dev.of_node)
- return -ENODEV;
-
r = sharp_ls_probe_of(pdev);
if (r)
return r;
@@ -287,29 +286,22 @@ static int sharp_ls_probe(struct platform_device *pdev)
r = omapdss_register_display(dssdev);
if (r) {
dev_err(&pdev->dev, "Failed to register panel\n");
- goto err_reg;
+ return r;
}
return 0;
-
-err_reg:
- omap_dss_put_device(ddata->in);
- return r;
}
static int __exit sharp_ls_remove(struct platform_device *pdev)
{
struct panel_drv_data *ddata = platform_get_drvdata(pdev);
struct omap_dss_device *dssdev = &ddata->dssdev;
- struct omap_dss_device *in = ddata->in;
omapdss_unregister_display(dssdev);
sharp_ls_disable(dssdev);
sharp_ls_disconnect(dssdev);
- omap_dss_put_device(in);
-
return 0;
}