Add HDMI notifiers to the HDMI bridge driver.
Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/bridge/Kconfig | 1 +
drivers/gpu/drm/bridge/dw-hdmi.c | 9 +++++++++
2 files changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
index 8f7423f18da5..6d97d9f2b164 100644
--- a/drivers/gpu/drm/bridge/Kconfig
+++ b/drivers/gpu/drm/bridge/Kconfig
@@ -20,6 +20,7 @@ config DRM_ANALOGIX_ANX78XX
config DRM_DW_HDMI
tristate
select DRM_KMS_HELPER
+ select HDMI_NOTIFIERS
config DRM_DW_HDMI_AHB_AUDIO
tristate "Synopsis Designware AHB Audio interface"
diff --git a/drivers/gpu/drm/bridge/dw-hdmi.c b/drivers/gpu/drm/bridge/dw-hdmi.c
index c9d941283d30..cb6e03efbebf 100644
--- a/drivers/gpu/drm/bridge/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/dw-hdmi.c
@@ -16,6 +16,7 @@
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/hdmi.h>
+#include <linux/hdmi-notifier.h>
#include <linux/mutex.h>
#include <linux/of_device.h>
#include <linux/spinlock.h>
@@ -1447,9 +1448,11 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
hdmi->sink_is_hdmi = drm_detect_hdmi_monitor(edid);
hdmi->sink_has_audio = drm_detect_monitor_audio(edid);
drm_mode_connector_update_edid_property(connector, edid);
+ hdmi_event_new_edid(hdmi->dev, edid, 0);
ret = drm_add_edid_modes(connector, edid);
/* Store the ELD */
drm_edid_to_eld(connector, edid);
+ hdmi_event_new_eld(hdmi->dev, connector->eld);
kfree(edid);
} else {
dev_dbg(hdmi->dev, "failed to get edid\n");
@@ -1601,6 +1604,12 @@ static irqreturn_t dw_hdmi_irq(int irq, void *dev_id)
dw_hdmi_update_phy_mask(hdmi);
}
mutex_unlock(&hdmi->mutex);
+
+ if ((phy_stat & (HDMI_PHY_RX_SENSE | HDMI_PHY_HPD)) == 0)
+ hdmi_event_disconnect(hdmi->dev);
+ else if ((phy_stat & (HDMI_PHY_RX_SENSE | HDMI_PHY_HPD)) ==
+ (HDMI_IH_PHY_STAT0_RX_SENSE | HDMI_PHY_HPD))
+ hdmi_event_connect(hdmi->dev);
}
if (intr_stat & HDMI_IH_PHY_STAT0_HPD) {
--
2.1.0
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