diff options
| author | Hans Verkuil <hans.verkuil@cisco.com> | 2017-09-11 14:29:52 +0200 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2017-10-20 14:19:54 +0200 |
| commit | fb83be8873909ba7c089d1c5cb72873cc2cce7d1 (patch) | |
| tree | 1e20d25f0278a82b32780ca998861257edfde498 /drivers/gpu/drm/tegra/hdmi.c | |
| parent | a2f2f7403e1ea192ce79584d7050c46e455409dd (diff) | |
drm/tegra: hdmi: Add cec-notifier support
In order to support CEC the HDMI driver has to inform the CEC driver
whenever the physical address changes. So when the EDID is read the
CEC driver has to be informed and whenever the hotplug detect goes
away.
This is done through the cec-notifier framework.
The link between the HDMI driver and the CEC driver is done through
the hdmi-phandle property in the tegra-cec node in the device tree.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/tegra/hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/hdmi.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c index a4e9c769fc7a..6434b3d3d1ba 100644 --- a/drivers/gpu/drm/tegra/hdmi.c +++ b/drivers/gpu/drm/tegra/hdmi.c @@ -22,6 +22,8 @@ #include <sound/hda_verbs.h> +#include <media/cec-notifier.h> + #include "hdmi.h" #include "drm.h" #include "dc.h" @@ -1721,6 +1723,10 @@ static int tegra_hdmi_probe(struct platform_device *pdev) return PTR_ERR(hdmi->vdd); } + hdmi->output.notifier = cec_notifier_get(&pdev->dev); + if (hdmi->output.notifier == NULL) + return -ENOMEM; + hdmi->output.dev = &pdev->dev; err = tegra_output_probe(&hdmi->output); @@ -1779,6 +1785,9 @@ static int tegra_hdmi_remove(struct platform_device *pdev) tegra_output_remove(&hdmi->output); + if (hdmi->output.notifier) + cec_notifier_put(hdmi->output.notifier); + return 0; } |