[PATCH RFC 3/5] drm/bridge: dw_hdmi: add HDMI notifier support
From: Russell King <hidden>
Date: 2016-08-12 14:15:05
Also in:
dri-devel, linux-fbdev
Subsystem:
drm drivers, drm drivers and misc gpu patches, drm drivers for bridge chips, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Andrzej Hajda, Neil Armstrong, Robert Foss, Linus Torvalds
Add HDMI notifiers to the HDMI bridge driver. Signed-off-by: Russell King <redacted> --- 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