diff options
| -rw-r--r-- | drivers/staging/imx-drm/imx-hdmi.c | 40 |
1 files changed, 33 insertions, 7 deletions
diff --git a/drivers/staging/imx-drm/imx-hdmi.c b/drivers/staging/imx-drm/imx-hdmi.c index 8c586453df11..ab16aba7788d 100644 --- a/drivers/staging/imx-drm/imx-hdmi.c +++ b/drivers/staging/imx-drm/imx-hdmi.c @@ -120,6 +120,8 @@ struct imx_hdmi { struct clk *isfr_clk; struct clk *iahb_clk; + enum drm_connector_status connector_status; + struct hdmi_data_info hdmi_data; int vic; @@ -1301,9 +1303,6 @@ static int imx_hdmi_fb_registered(struct imx_hdmi *hdmi) /* Clear Hotplug interrupts */ hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD, HDMI_IH_PHY_STAT0); - /* Unmute interrupts */ - hdmi_writeb(hdmi, ~HDMI_IH_PHY_STAT0_HPD, HDMI_IH_MUTE_PHY_STAT0); - return 0; } @@ -1372,8 +1371,9 @@ static void imx_hdmi_poweroff(struct imx_hdmi *hdmi) static enum drm_connector_status imx_hdmi_connector_detect(struct drm_connector *connector, bool force) { - /* FIXME */ - return connector_status_connected; + struct imx_hdmi *hdmi = container_of(connector, struct imx_hdmi, + connector); + return hdmi->connector_status; } static int imx_hdmi_connector_get_modes(struct drm_connector *connector) @@ -1487,6 +1487,18 @@ static struct drm_connector_helper_funcs imx_hdmi_connector_helper_funcs = { .best_encoder = imx_hdmi_connector_best_encoder, }; +static irqreturn_t imx_hdmi_hardirq(int irq, void *dev_id) +{ + struct imx_hdmi *hdmi = dev_id; + u8 intr_stat; + + intr_stat = hdmi_readb(hdmi, HDMI_IH_PHY_STAT0); + if (intr_stat) + hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0); + + return intr_stat ? IRQ_WAKE_THREAD : IRQ_NONE; +} + static irqreturn_t imx_hdmi_irq(int irq, void *dev_id) { struct imx_hdmi *hdmi = dev_id; @@ -1503,17 +1515,21 @@ static irqreturn_t imx_hdmi_irq(int irq, void *dev_id) hdmi_modb(hdmi, 0, HDMI_PHY_HPD, HDMI_PHY_POL0); + hdmi->connector_status = connector_status_connected; imx_hdmi_poweron(hdmi); } else { dev_dbg(hdmi->dev, "EVENT=plugout\n"); hdmi_modb(hdmi, HDMI_PHY_HPD, HDMI_PHY_HPD, HDMI_PHY_POL0); + hdmi->connector_status = connector_status_disconnected; imx_hdmi_poweroff(hdmi); } + drm_helper_hpd_irq_event(hdmi->connector.dev); } hdmi_writeb(hdmi, intr_stat, HDMI_IH_PHY_STAT0); + hdmi_writeb(hdmi, ~HDMI_IH_PHY_STAT0_HPD, HDMI_IH_MUTE_PHY_STAT0); return IRQ_HANDLED; } @@ -1527,6 +1543,8 @@ static int imx_hdmi_register(struct drm_device *drm, struct imx_hdmi *hdmi) if (ret) return ret; + hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD; + drm_encoder_helper_add(&hdmi->encoder, &imx_hdmi_encoder_helper_funcs); drm_encoder_init(drm, &hdmi->encoder, &imx_hdmi_encoder_funcs, DRM_MODE_ENCODER_TMDS); @@ -1578,6 +1596,7 @@ static int imx_hdmi_bind(struct device *dev, struct device *master, void *data) return -ENOMEM; hdmi->dev = dev; + hdmi->connector_status = connector_status_disconnected; hdmi->sample_rate = 48000; hdmi->ratio = 100; @@ -1601,8 +1620,9 @@ static int imx_hdmi_bind(struct device *dev, struct device *master, void *data) if (irq < 0) return -EINVAL; - ret = devm_request_irq(dev, irq, imx_hdmi_irq, 0, - dev_name(dev), hdmi); + ret = devm_request_threaded_irq(dev, irq, imx_hdmi_hardirq, + imx_hdmi_irq, IRQF_SHARED, + dev_name(dev), hdmi); if (ret) return ret; @@ -1678,6 +1698,9 @@ static int imx_hdmi_bind(struct device *dev, struct device *master, void *data) if (ret) goto err_iahb; + /* Unmute interrupts */ + hdmi_writeb(hdmi, ~HDMI_IH_PHY_STAT0_HPD, HDMI_IH_MUTE_PHY_STAT0); + dev_set_drvdata(dev, hdmi); return 0; @@ -1695,6 +1718,9 @@ static void imx_hdmi_unbind(struct device *dev, struct device *master, { struct imx_hdmi *hdmi = dev_get_drvdata(dev); + /* Disable all interrupts */ + hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0); + hdmi->connector.funcs->destroy(&hdmi->connector); hdmi->encoder.funcs->destroy(&hdmi->encoder); |