diff options
55 files changed, 4277 insertions, 3831 deletions
diff --git a/Documentation/devicetree/bindings/display/connector/dvi-connector.txt b/Documentation/devicetree/bindings/display/connector/dvi-connector.txt index fc53f7c60bc6..207e42e9eba0 100644 --- a/Documentation/devicetree/bindings/display/connector/dvi-connector.txt +++ b/Documentation/devicetree/bindings/display/connector/dvi-connector.txt @@ -10,6 +10,7 @@ Optional properties: - analog: the connector has DVI analog pins - digital: the connector has DVI digital pins - dual-link: the connector has pins for DVI dual-link +- hpd-gpios: HPD GPIO number Required nodes: - Video port for DVI input diff --git a/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c b/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c index 95ea6abae914..9eabd7201a12 100644 --- a/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c +++ b/drivers/gpu/drm/omapdrm/displays/connector-analog-tv.c @@ -40,14 +40,12 @@ static const struct videomode tvc_pal_vm = { DISPLAY_FLAGS_VSYNC_LOW, }; -static const struct of_device_id tvc_of_match[]; - #define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev) 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"); @@ -55,10 +53,19 @@ static int tvc_connect(struct omap_dss_device *dssdev) if (omapdss_device_is_connected(dssdev)) return 0; + 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) + if (r) { + omap_dss_put_device(in); return r; + } + ddata->in = in; return 0; } @@ -73,6 +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) @@ -175,32 +185,12 @@ 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; struct omap_dss_device *dssdev; int r; - if (!pdev->dev.of_node) - return -ENODEV; - ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL); if (!ddata) return -ENOMEM; @@ -208,10 +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; @@ -224,28 +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; } diff --git a/drivers/gpu/drm/omapdrm/displays/connector-dvi.c b/drivers/gpu/drm/omapdrm/displays/connector-dvi.c index 10b4b97d3595..6d8cbd9e2110 100644 --- a/drivers/gpu/drm/omapdrm/displays/connector-dvi.c +++ b/drivers/gpu/drm/omapdrm/displays/connector-dvi.c @@ -9,6 +9,7 @@ * the Free Software Foundation. */ +#include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/module.h> #include <linux/platform_device.h> @@ -44,6 +45,14 @@ struct panel_drv_data { struct videomode vm; struct i2c_adapter *i2c_adapter; + + struct gpio_desc *hpd_gpio; + + void (*hpd_cb)(void *cb_data, enum drm_connector_status status); + void *hpd_cb_data; + bool hpd_enabled; + /* mutex for hpd fields above */ + struct mutex hpd_lock; }; #define to_panel_data(x) container_of(x, struct panel_drv_data, dssdev) @@ -51,16 +60,25 @@ 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; + 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) + if (r) { + omap_dss_put_device(in); return r; + } + ddata->in = in; return 0; } @@ -73,6 +91,9 @@ 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) @@ -177,6 +198,9 @@ static int dvic_read_edid(struct omap_dss_device *dssdev, struct panel_drv_data *ddata = to_panel_data(dssdev); int r, l, bytes_read; + if (ddata->hpd_gpio && !gpiod_get_value_cansleep(ddata->hpd_gpio)) + return -ENODEV; + if (!ddata->i2c_adapter) return -ENODEV; @@ -208,6 +232,9 @@ static bool dvic_detect(struct omap_dss_device *dssdev) unsigned char out; int r; + if (ddata->hpd_gpio) + return gpiod_get_value_cansleep(ddata->hpd_gpio); + if (!ddata->i2c_adapter) return true; @@ -216,6 +243,60 @@ static bool dvic_detect(struct omap_dss_device *dssdev) return r == 0; } +static int dvic_register_hpd_cb(struct omap_dss_device *dssdev, + void (*cb)(void *cb_data, + enum drm_connector_status status), + void *cb_data) +{ + struct panel_drv_data *ddata = to_panel_data(dssdev); + + if (!ddata->hpd_gpio) + return -ENOTSUPP; + + mutex_lock(&ddata->hpd_lock); + ddata->hpd_cb = cb; + ddata->hpd_cb_data = cb_data; + mutex_unlock(&ddata->hpd_lock); + return 0; +} + +static void dvic_unregister_hpd_cb(struct omap_dss_device *dssdev) +{ + struct panel_drv_data *ddata = to_panel_data(dssdev); + + if (!ddata->hpd_gpio) + return; + + mutex_lock(&ddata->hpd_lock); + ddata->hpd_cb = NULL; + ddata->hpd_cb_data = NULL; + mutex_unlock(&ddata->hpd_lock); +} + +static void dvic_enable_hpd(struct omap_dss_device *dssdev) +{ + struct panel_drv_data *ddata = to_panel_data(dssdev); + + if (!ddata->hpd_gpio) + return; + + mutex_lock(&ddata->hpd_lock); + ddata->hpd_enabled = true; + mutex_unlock(&ddata->hpd_lock); +} + +static void dvic_disable_hpd(struct omap_dss_device *dssdev) +{ + struct panel_drv_data *ddata = to_panel_data(dssdev); + + if (!ddata->hpd_gpio) + return; + + mutex_lock(&ddata->hpd_lock); + ddata->hpd_enabled = false; + mutex_unlock(&ddata->hpd_lock); +} + static struct omap_dss_driver dvic_driver = { .connect = dvic_connect, .disconnect = dvic_disconnect, @@ -229,23 +310,60 @@ static struct omap_dss_driver dvic_driver = { .read_edid = dvic_read_edid, .detect = dvic_detect, + + .register_hpd_cb = dvic_register_hpd_cb, + .unregister_hpd_cb = dvic_unregister_hpd_cb, + .enable_hpd = dvic_enable_hpd, + .disable_hpd = dvic_disable_hpd, }; +static irqreturn_t dvic_hpd_isr(int irq, void *data) +{ + struct panel_drv_data *ddata = data; + + mutex_lock(&ddata->hpd_lock); + if (ddata->hpd_enabled && ddata->hpd_cb) { + enum drm_connector_status status; + + if (dvic_detect(&ddata->dssdev)) + status = connector_status_connected; + else + status = connector_status_disconnected; + + ddata->hpd_cb(ddata->hpd_cb_data, status); + } + mutex_unlock(&ddata->hpd_lock); + + return IRQ_HANDLED; +} + 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; + struct gpio_desc *gpio; + int 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); + gpio = devm_gpiod_get_optional(&pdev->dev, "hpd", GPIOD_IN); + if (IS_ERR(gpio)) { + dev_err(&pdev->dev, "failed to parse HPD gpio\n"); + return PTR_ERR(gpio); } - ddata->in = in; + ddata->hpd_gpio = gpio; + + mutex_init(&ddata->hpd_lock); + + if (ddata->hpd_gpio) { + r = devm_request_threaded_irq(&pdev->dev, + gpiod_to_irq(ddata->hpd_gpio), NULL, dvic_hpd_isr, + IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + "DVI HPD", ddata); + if (r) + return r; + } adapter_node = of_parse_phandle(node, "ddc-i2c-bus", 0); if (adapter_node) { @@ -253,7 +371,6 @@ static int dvic_probe_of(struct platform_device *pdev) 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; } @@ -275,9 +392,6 @@ static int dvic_probe(struct platform_device *pdev) platform_set_drvdata(pdev, ddata); - if (!pdev->dev.of_node) - return -ENODEV; - r = dvic_probe_of(pdev); if (r) return r; @@ -300,9 +414,8 @@ static int dvic_probe(struct platform_device *pdev) return 0; err_reg: - omap_dss_put_device(ddata->in); - i2c_put_adapter(ddata->i2c_adapter); + mutex_destroy(&ddata->hpd_lock); return r; } @@ -311,17 +424,16 @@ 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); + mutex_destroy(&ddata->hpd_lock); + return 0; } diff --git a/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c b/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c index 2867476419dc..ca30ed9da7eb 100644 --- a/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c +++ b/drivers/gpu/drm/omapdrm/displays/connector-hdmi.c @@ -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; + 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) + 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; } @@ -336,9 +339,6 @@ static int hdmic_probe(struct platform_device *pdev) platform_set_drvdata(pdev, ddata); ddata->dev = &pdev->dev; - if (!pdev->dev.of_node) - return -ENODEV; - r = hdmic_probe_of(pdev); if (r) return r; @@ -349,7 +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), @@ -358,7 +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; @@ -373,28 +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; } diff --git a/drivers/gpu/drm/omapdrm/displays/encoder-opa362.c b/drivers/gpu/drm/omapdrm/displays/encoder-opa362.c index d523c67a3ae3..afee1b8b457a 100644 --- a/drivers/gpu/drm/omapdrm/displays/encoder-opa362.c +++ b/drivers/gpu/drm/omapdrm/displays/encoder-opa362.c @@ -36,7 +36,7 @@ static int opa362_connect(struct omap_dss_device *dssdev, struct omap_dss_device *dst) { 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(dssdev->dev, "connect\n"); @@ -44,13 +44,22 @@ static int opa362_connect(struct omap_dss_device *dssdev, if (omapdss_device_is_connected(dssdev)) return -EBUSY; + 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.atv->connect(in, dssdev); - if (r) + if (r) { + omap_dss_put_device(in); return r; + } dst->src = dssdev; dssdev->dst = dst; + ddata->in = in; return 0; } @@ -74,6 +83,9 @@ static void opa362_disconnect(struct omap_dss_device *dssdev, dssdev->dst = NULL; in->ops.atv->disconnect(in, &ddata->dssdev); + + omap_dss_put_device(in); + ddata->in = NULL; } static int opa362_enable(struct omap_dss_device *dssdev) @@ -171,19 +183,13 @@ static const struct omapdss_atv_ops opa362_atv_ops = { static int opa362_probe(struct platform_device *pdev) { - struct device_node *node = pdev->dev.of_node; struct panel_drv_data *ddata; - struct omap_dss_device *dssdev, *in; + struct omap_dss_device *dssdev; struct gpio_desc *gpio; int r; dev_dbg(&pdev->dev, "probe\n"); - if (node == NULL) { - dev_err(&pdev->dev, "Unable to find device tree\n"); - return -EINVAL; - } - ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL); if (!ddata) return -ENOMEM; @@ -196,14 +202,6 @@ static int opa362_probe(struct platform_device *pdev) ddata->enable_gpio = 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; - dssdev = &ddata->dssdev; dssdev->ops.atv = &opa362_atv_ops; dssdev->dev = &pdev->dev; @@ -214,20 +212,16 @@ static int opa362_probe(struct platform_device *pdev) r = omapdss_register_output(dssdev); if (r) { dev_err(&pdev->dev, "Failed to register output\n"); - goto err_reg; + return r; } return 0; -err_reg: - omap_dss_put_device(ddata->in); - return r; } static int __exit opa362_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_output(&ddata->dssdev); @@ -239,8 +233,6 @@ static int __exit opa362_remove(struct platform_device *pdev) if (omapdss_device_is_connected(dssdev)) opa362_disconnect(dssdev, dssdev->dst); - omap_dss_put_device(in); - return 0; } diff --git a/drivers/gpu/drm/omapdrm/displays/encoder-tfp410.c b/drivers/gpu/drm/omapdrm/displays/encoder-tfp410.c index e01ab3db6d86..ed7ae384c3ed 100644 --- a/drivers/gpu/drm/omapdrm/displays/encoder-tfp410.c +++ b/drivers/gpu/drm/omapdrm/displays/encoder-tfp410.c @@ -32,19 +32,28 @@ static int tfp410_connect(struct omap_dss_device *dssdev, struct omap_dss_device *dst) { 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 -EBUSY; + 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; + } dst->src = dssdev; dssdev->dst = dst; + ddata->in = in; return 0; } @@ -66,6 +75,9 @@ static void tfp410_disconnect(struct omap_dss_device *dssdev, dssdev->dst = NULL; in->ops.dpi->disconnect(in, &ddata->dssdev); + + omap_dss_put_device(in); + ddata->in = NULL; } static int tfp410_enable(struct omap_dss_device *dssdev) @@ -165,7 +177,6 @@ static int tfp410_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; gpio = of_get_named_gpio(node, "powerdown-gpios", 0); @@ -178,14 +189,6 @@ static int tfp410_probe_of(struct platform_device *pdev) 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; - return 0; } @@ -201,9 +204,6 @@ static int tfp410_probe(struct platform_device *pdev) pla |