From: Benjamin Gaignard <benjamin.gaign...@linaro.org>
Implement the CEC notifier support to allow CEC drivers to
be informed when there is a new physical address.
Signed-off-by: Benjamin Gaignard <benjamin.gaign...@linaro.org>
Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
---
drivers/gpu/drm/sti/sti_hdmi.c | 11 +++++++++++
drivers/gpu/drm/sti/sti_hdmi.h | 3 +++
2 files changed, 14 insertions(+)
diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c
index ce2dcba679d5..345d3631cf50 100644
--- a/drivers/gpu/drm/sti/sti_hdmi.c
+++ b/drivers/gpu/drm/sti/sti_hdmi.c
@@ -771,6 +771,8 @@ static void sti_hdmi_disable(struct drm_bridge *bridge)
clk_disable_unprepare(hdmi->clk_pix);
hdmi->enabled = false;
+
+ cec_notifier_set_phys_addr(hdmi->notifier, CEC_PHYS_ADDR_INVALID);
}
/**
@@ -973,6 +975,7 @@ static int sti_hdmi_connector_get_modes(struct
drm_connector *connector)
DRM_DEBUG_KMS("%s : %dx%d cm\n",
(hdmi->hdmi_monitor ? "hdmi monitor" : "dvi monitor"),
edid->width_cm, edid->height_cm);
+ cec_notifier_set_phys_addr(hdmi->notifier,
cec_get_edid_phys_addr(edid));
count = drm_add_edid_modes(connector, edid);
drm_mode_connector_update_edid_property(connector, edid);
@@ -1035,6 +1038,7 @@ sti_hdmi_connector_detect(struct drm_connector
*connector, bool force)
}
DRM_DEBUG_DRIVER("hdmi cable disconnected\n");
+ cec_notifier_set_phys_addr(hdmi->notifier, CEC_PHYS_ADDR_INVALID);
return connector_status_disconnected;
}
@@ -1423,6 +1427,10 @@ static int sti_hdmi_probe(struct platform_device *pdev)
goto release_adapter;
}
+ hdmi->notifier = cec_notifier_get(&pdev->dev);
+ if (!hdmi->notifier)
+ goto release_adapter;
+
hdmi->reset = devm_reset_control_get(dev, "hdmi");
/* Take hdmi out of reset */
if (!IS_ERR(hdmi->reset))
@@ -1442,11 +1450,14 @@ static int sti_hdmi_remove(struct platform_device *pdev)
{
struct sti_hdmi *hdmi = dev_get_drvdata(&pdev->dev);
+ cec_notifier_set_phys_addr(hdmi->notifier, CEC_PHYS_ADDR_INVALID);
+
i2c_put_adapter(hdmi->ddc_adapt);
if (hdmi->audio_pdev)
platform_device_unregister(hdmi->audio_pdev);
component_del(&pdev->dev, &sti_hdmi_ops);
+ cec_notifier_put(hdmi->notifier);
return 0;
}
diff --git a/drivers/gpu/drm/sti/sti_hdmi.h b/drivers/gpu/drm/sti/sti_hdmi.h
index 407012350f1a..c6469b56ce7e 100644
--- a/drivers/gpu/drm/sti/sti_hdmi.h
+++ b/drivers/gpu/drm/sti/sti_hdmi.h
@@ -11,6 +11,7 @@
#include <linux/platform_device.h>
#include <drm/drmP.h>
+#include <media/cec-notifier.h>
#define HDMI_STA 0x0010
#define HDMI_STA_DLL_LCK BIT(5)
@@ -64,6 +65,7 @@ static const struct drm_prop_enum_list
colorspace_mode_names[] = {
* @audio_pdev: ASoC hdmi-codec platform device
* @audio: hdmi audio parameters.
* @drm_connector: hdmi connector
+ * @notifier: hotplug detect notifier
*/
struct sti_hdmi {
struct device dev;
@@ -89,6 +91,7 @@ struct sti_hdmi {
struct platform_device *audio_pdev;
struct hdmi_audio_params audio;
struct drm_connector *drm_connector;
+ struct cec_notifier *notifier;
};
u32 hdmi_read(struct sti_hdmi *hdmi, int offset);
--
2.11.0
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