[PATCH] drm/tegra: Refactor CEC support

[Thierry Reding]

From: Thierry Reding <treding at nvidia.com>

Most of the CEC support code already lives in the "output" library code.
Move registration and unregistration to the library code as well to make
use of the same code with HDMI on Tegra210 and later via the SOR.

Signed-off-by: Thierry Reding <treding at nvidia.com>
---
 drivers/gpu/drm/tegra/drm.h    |  2 +-
 drivers/gpu/drm/tegra/hdmi.c   |  9 ---------
 drivers/gpu/drm/tegra/output.c | 11 +++++++++--
 3 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/tegra/drm.h b/drivers/gpu/drm/tegra/drm.h
index 019862a41cb4..dbc9e11b0aec 100644
--- a/drivers/gpu/drm/tegra/drm.h
+++ b/drivers/gpu/drm/tegra/drm.h
@@ -132,7 +132,7 @@ struct tegra_output {
 	struct drm_panel *panel;
 	struct i2c_adapter *ddc;
 	const struct edid *edid;
-	struct cec_notifier *notifier;
+	struct cec_notifier *cec;
 	unsigned int hpd_irq;
 	int hpd_gpio;
 	enum of_gpio_flags hpd_gpio_flags;
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
index 0082468f703c..d19973945614 100644
--- a/drivers/gpu/drm/tegra/hdmi.c
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -22,8 +22,6 @@
 
 #include <sound/hda_verbs.h>
 
-#include <media/cec-notifier.h>
-
 #include "hdmi.h"
 #include "drm.h"
 #include "dc.h"
@@ -1709,10 +1707,6 @@ 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);
@@ -1771,9 +1765,6 @@ 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;
 }
 
diff --git a/drivers/gpu/drm/tegra/output.c b/drivers/gpu/drm/tegra/output.c
index c662efc7e413..9c2b9dad55c3 100644
--- a/drivers/gpu/drm/tegra/output.c
+++ b/drivers/gpu/drm/tegra/output.c
@@ -36,7 +36,7 @@ int tegra_output_connector_get_modes(struct drm_connector *connector)
 	else if (output->ddc)
 		edid = drm_get_edid(connector, output->ddc);
 
-	cec_notifier_set_phys_addr_from_edid(output->notifier, edid);
+	cec_notifier_set_phys_addr_from_edid(output->cec, edid);
 	drm_connector_update_edid_property(connector, edid);
 
 	if (edid) {
@@ -73,7 +73,7 @@ tegra_output_connector_detect(struct drm_connector *connector, bool force)
 	}
 
 	if (status != connector_status_connected)
-		cec_notifier_phys_addr_invalidate(output->notifier);
+		cec_notifier_phys_addr_invalidate(output->cec);
 
 	return status;
 }
@@ -174,11 +174,18 @@ int tegra_output_probe(struct tegra_output *output)
 		disable_irq(output->hpd_irq);
 	}
 
+	output->cec = cec_notifier_get(output->dev);
+	if (!output->cec)
+		return -ENOMEM;
+
 	return 0;
 }
 
 void tegra_output_remove(struct tegra_output *output)
 {
+	if (output->cec)
+		cec_notifier_put(output->cec);
+
 	if (gpio_is_valid(output->hpd_gpio)) {
 		free_irq(output->hpd_irq, output);
 		gpio_free(output->hpd_gpio);
-- 
2.19.1