From: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
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.
Reviewed-by: Jessica Zhang <quic_jessz...@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
---
drivers/gpu/drm/msm/hdmi/hdmi.c | 9 ---------
drivers/gpu/drm/msm/hdmi/hdmi.h | 4 ++--
drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 2 ++
drivers/gpu/drm/msm/hdmi/hdmi_hpd.c | 12 ++++++------
4 files changed, 10 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
index
5355cfd391c5cc3053f771dd03e24dfde16733bf..2fd388b892dcb3d83cf57b4616b7a65f9ff674d1
100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
@@ -200,12 +200,6 @@ 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:
@@ -261,9 +255,6 @@ static void msm_hdmi_unbind(struct device *dev, struct
device *master,
struct msm_drm_private *priv = dev_get_drvdata(master);
if (priv->hdmi) {
- 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
e488ee31cc865b4eee9d486d978217c00f7816bf..d5e572d10d6a14b866f13c3a0d663cc6ae435ef5
100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.h
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.h
@@ -216,8 +216,8 @@ 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
8ff0079abc801448e96b73ebea4730edea55ea6c..53a7ce8cc7bc7b6278eae2cbc42c3fda8d697f6d
100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
@@ -459,6 +459,8 @@ static const struct drm_bridge_funcs msm_hdmi_bridge_funcs
= {
.atomic_post_disable = msm_hdmi_bridge_atomic_post_disable,
.edid_read = msm_hdmi_bridge_edid_read,
.detect = msm_hdmi_bridge_detect,
+ .hpd_enable = msm_hdmi_hpd_enable,
+ .hpd_disable = msm_hdmi_hpd_disable,
.hdmi_tmds_char_rate_valid = msm_hdmi_bridge_tmds_char_rate_valid,
.hdmi_clear_infoframe = msm_hdmi_bridge_clear_infoframe,
.hdmi_write_infoframe = msm_hdmi_bridge_write_infoframe,
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_hpd.c
b/drivers/gpu/drm/msm/hdmi/hdmi_hpd.c
index
e03d0ca230e64d7675534074d6e14587815119b6..407e6c449ee0d84628e4cae9dd43c1b1f2c0090f
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;
@@ -73,8 +73,8 @@ int msm_hdmi_hpd_enable(struct drm_bridge *bridge)
gpiod_set_value_cansleep(hdmi->hpd_gpiod, 1);
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);
@@ -102,12 +102,12 @@ 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 */
--
2.39.5
