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drm: omapdrm: displays: Get connector source at connect time 

The connector drivers need a handle to the source they are connected to
in order to control the source.

All drivers get that handle at probe time, resulting in probe deferral
when the source hasn't been probed yet. However they don't need the
handle until their connect handler is called.

Move retrieval of the source handle to the connect handler to avoid
probe deferrals.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
hifive-unleashed-5.1
Laurent Pinchart 2018-02-11 15:07:39 +02:00 committed by Tomi Valkeinen
parent 6b06df832f
commit b47e6dcb58
3 changed files with 52 additions and 73 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

49
drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c
View File

@ -45,7 +45,7 @@ static const struct videomode tvc_pal_vm = {
static int tvc_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;
dev_dbg(ddata->dev, "connect\n");
@ -53,10 +53,19 @@ static int tvc_connect(struct omap_dss_device *dssdev)
if (omapdss_device_is_connected(dssdev))
return 0;
r = in->ops.atv->connect(in, dssdev);
if (r)
return r;
in = omapdss_of_find_source_for_first_ep(ddata->dev->of_node);
if (IS_ERR(in)) {
dev_err(ddata->dev, "failed to find video source\n");
return PTR_ERR(in);
}
r = in->ops.atv->connect(in, dssdev);
if (r) {
omap_dss_put_device(in);
return r;
}
ddata->in = in;
return 0;
}
@ -71,6 +80,9 @@ static void tvc_disconnect(struct omap_dss_device *dssdev)
return;
in->ops.atv->disconnect(in, dssdev);
omap_dss_put_device(in);
ddata->in = NULL;
}
static int tvc_enable(struct omap_dss_device *dssdev)
@ -173,23 +185,6 @@ static struct omap_dss_driver tvc_driver = {
.set_wss = tvc_set_wss,
};
static int tvc_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;
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;
}
static int tvc_probe(struct platform_device *pdev)
{
struct panel_drv_data *ddata;
@ -203,10 +198,6 @@ static int tvc_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, ddata);
ddata->dev = &pdev->dev;
r = tvc_probe_of(pdev);
if (r)
return r;
ddata->vm = tvc_pal_vm;
dssdev = &ddata->dssdev;
@ -219,28 +210,22 @@ static int tvc_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 tvc_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(&ddata->dssdev);
tvc_disable(dssdev);
tvc_disconnect(dssdev);
omap_dss_put_device(in);
return 0;
}

35
drivers/gpu/drm/omapdrm/displays/connector-dvi.c
View File

@ -51,16 +51,25 @@ struct panel_drv_data {
static int dvic_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;
r = in->ops.dvi->connect(in, dssdev);
if (r)
return r;
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.dvi->connect(in, dssdev);
if (r) {
omap_dss_put_device(in);
return r;
}
ddata->in = in;
return 0;
}
@ -73,6 +82,9 @@ static void dvic_disconnect(struct omap_dss_device *dssdev)
return;
in->ops.dvi->disconnect(in, dssdev);
omap_dss_put_device(in);
ddata->in = NULL;
}
static int dvic_enable(struct omap_dss_device *dssdev)
@ -235,25 +247,15 @@ static int dvic_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;
struct device_node *adapter_node;
struct i2c_adapter *adapter;
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;
adapter_node = of_parse_phandle(node, "ddc-i2c-bus", 0);
if (adapter_node) {
adapter = of_get_i2c_adapter_by_node(adapter_node);
of_node_put(adapter_node);
if (adapter == NULL) {
dev_err(&pdev->dev, "failed to parse ddc-i2c-bus\n");
omap_dss_put_device(ddata->in);
return -EPROBE_DEFER;
}
@ -297,8 +299,6 @@ static int dvic_probe(struct platform_device *pdev)
return 0;
err_reg:
omap_dss_put_device(ddata->in);
i2c_put_adapter(ddata->i2c_adapter);
return r;
@ -308,15 +308,12 @@ static int __exit dvic_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(&ddata->dssdev);
dvic_disable(dssdev);
dvic_disconnect(dssdev);
omap_dss_put_device(in);
i2c_put_adapter(ddata->i2c_adapter);
return 0;

41
drivers/gpu/drm/omapdrm/displays/connector-hdmi.c
View File

@ -55,7 +55,7 @@ struct panel_drv_data {
static int hdmic_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;
dev_dbg(ddata->dev, "connect\n");
@ -63,10 +63,19 @@ static int hdmic_connect(struct omap_dss_device *dssdev)
if (omapdss_device_is_connected(dssdev))
return 0;
r = in->ops.hdmi->connect(in, dssdev);
if (r)
return r;
in = omapdss_of_find_source_for_first_ep(ddata->dev->of_node);
if (IS_ERR(in)) {
dev_err(ddata->dev, "failed to find video source\n");
return PTR_ERR(in);
}
r = in->ops.hdmi->connect(in, dssdev);
if (r) {
omap_dss_put_device(in);
return r;
}
ddata->in = in;
return 0;
}
@ -81,6 +90,9 @@ static void hdmic_disconnect(struct omap_dss_device *dssdev)
return;
in->ops.hdmi->disconnect(in, dssdev);
omap_dss_put_device(in);
ddata->in = NULL;
}
static int hdmic_enable(struct omap_dss_device *dssdev)
@ -302,7 +314,6 @@ static int hdmic_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 gpio;
/* HPD GPIO */
@ -312,14 +323,6 @@ static int hdmic_probe_of(struct platform_device *pdev)
else
ddata->hpd_gpio = -ENODEV;
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;
}
@ -346,7 +349,7 @@ static int hdmic_probe(struct platform_device *pdev)
r = devm_gpio_request_one(&pdev->dev, ddata->hpd_gpio,
GPIOF_DIR_IN, "hdmi_hpd");
if (r)
goto err_reg;
return r;
r = devm_request_threaded_irq(&pdev->dev,
gpio_to_irq(ddata->hpd_gpio),
@ -355,7 +358,7 @@ static int hdmic_probe(struct platform_device *pdev)
IRQF_ONESHOT,
"hdmic hpd", ddata);
if (r)
goto err_reg;
return r;
}
ddata->vm = hdmic_default_vm;
@ -370,28 +373,22 @@ static int hdmic_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 hdmic_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(&ddata->dssdev);
hdmic_disable(dssdev);
hdmic_disconnect(dssdev);
omap_dss_put_device(in);
return 0;
}