On 5/22/2024 3:51 AM, Dmitry Baryshkov wrote:
The HDMI driver already has msm_hdmi_hpd_enable() and
msm_hdmi_hpd_disable() functions. Wire them into the
msm_hdmi_bridge_funcs, so that HPD can be enabled and disabled
dynamically rather than always having HPD events generation enabled.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Reviewed-by: Jessica Zhang <quic_jesszhan@xxxxxxxxxxx>
---
drivers/gpu/drm/msm/hdmi/hdmi.c | 9 ---------
drivers/gpu/drm/msm/hdmi/hdmi.h | 4 ++--
drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 3 +++
drivers/gpu/drm/msm/hdmi/hdmi_hpd.c | 12 ++++++------
4 files changed, 11 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
index 2890196857f8..06adcf4a6544 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
@@ -202,12 +202,6 @@ int msm_hdmi_modeset_init(struct hdmi *hdmi,
goto fail;
}
- ret = msm_hdmi_hpd_enable(hdmi->bridge);
- if (ret < 0) {
- DRM_DEV_ERROR(&hdmi->pdev->dev, "failed to enable HPD: %d\n", ret);
- goto fail;
- }
-
return 0;
fail:
@@ -377,9 +371,6 @@ static void msm_hdmi_unbind(struct device *dev, struct device *master,
if (priv->hdmi->audio_pdev)
platform_device_unregister(priv->hdmi->audio_pdev);
- if (priv->hdmi->bridge)
- msm_hdmi_hpd_disable(priv->hdmi);
-
msm_hdmi_destroy(priv->hdmi);
priv->hdmi = NULL;
}
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.h b/drivers/gpu/drm/msm/hdmi/hdmi.h
index 7f0ca5252018..c6519e6f7f2c 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.h
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.h
@@ -219,8 +219,8 @@ int msm_hdmi_bridge_init(struct hdmi *hdmi);
void msm_hdmi_hpd_irq(struct drm_bridge *bridge);
enum drm_connector_status msm_hdmi_bridge_detect(
struct drm_bridge *bridge);
-int msm_hdmi_hpd_enable(struct drm_bridge *bridge);
-void msm_hdmi_hpd_disable(struct hdmi *hdmi);
+void msm_hdmi_hpd_enable(struct drm_bridge *bridge);
+void msm_hdmi_hpd_disable(struct drm_bridge *bridge);
/*
* i2c adapter for ddc:
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
index 104107ed47d0..41722b2e6b44 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
@@ -300,6 +300,9 @@ static const struct drm_bridge_funcs msm_hdmi_bridge_funcs = {
.mode_valid = msm_hdmi_bridge_mode_valid,
.edid_read = msm_hdmi_bridge_edid_read,
.detect = msm_hdmi_bridge_detect,
+
+ .hpd_enable = msm_hdmi_hpd_enable,
+ .hpd_disable = msm_hdmi_hpd_disable,
};
static void
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_hpd.c b/drivers/gpu/drm/msm/hdmi/hdmi_hpd.c
index cb89e9e2c6ea..04d00b6f36fd 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_hpd.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_hpd.c
@@ -60,7 +60,7 @@ static void msm_hdmi_phy_reset(struct hdmi *hdmi)
}
}
-int msm_hdmi_hpd_enable(struct drm_bridge *bridge)
+void msm_hdmi_hpd_enable(struct drm_bridge *bridge)
{
struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge);
struct hdmi *hdmi = hdmi_bridge->hdmi;
@@ -70,8 +70,8 @@ int msm_hdmi_hpd_enable(struct drm_bridge *bridge)
unsigned long flags;
ret = pm_runtime_resume_and_get(dev);
- if (ret)
- return ret;
+ if (WARN_ON(ret))
+ return;
mutex_lock(&hdmi->state_mutex);
msm_hdmi_set_mode(hdmi, false);
@@ -99,12 +99,12 @@ int msm_hdmi_hpd_enable(struct drm_bridge *bridge)
hdmi_write(hdmi, REG_HDMI_HPD_CTRL,
HDMI_HPD_CTRL_ENABLE | hpd_ctrl);
spin_unlock_irqrestore(&hdmi->reg_lock, flags);
-
- return 0;
}
-void msm_hdmi_hpd_disable(struct hdmi *hdmi)
+void msm_hdmi_hpd_disable(struct drm_bridge *bridge)
{
+ struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge);
+ struct hdmi *hdmi = hdmi_bridge->hdmi;
struct device *dev = &hdmi->pdev->dev;
/* Disable HPD interrupt */
--
2.39.2
