On 8/26/2022 2:39 AM, Dmitry Baryshkov wrote:
To continue the idea of failing the probe() rather than failing the
bind(), move the call to msm_hdmi_get_phy() function to
msm_hdmi_dev_probe(), so that the driver fails the probe if PHY is not
yet available rather than succeeding the probe and then failing the
bind() with -EPROBE_DEFER.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Reviewed-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
---
drivers/gpu/drm/msm/hdmi/hdmi.c | 40 ++++++++++++++++++---------------
1 file changed, 22 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
index 926274eeee25..adaa67d9a78d 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
@@ -68,14 +68,17 @@ static void msm_hdmi_destroy(struct hdmi *hdmi)
destroy_workqueue(hdmi->workq);
msm_hdmi_hdcp_destroy(hdmi);
+ if (hdmi->i2c)
+ msm_hdmi_i2c_destroy(hdmi->i2c);
+}
+
+static void msm_hdmi_put_phy(struct hdmi *hdmi)
+{
if (hdmi->phy_dev) {
put_device(hdmi->phy_dev);
hdmi->phy = NULL;
hdmi->phy_dev = NULL;
}
-
- if (hdmi->i2c)
- msm_hdmi_i2c_destroy(hdmi->i2c);
}
static int msm_hdmi_get_phy(struct hdmi *hdmi)
@@ -91,19 +94,15 @@ static int msm_hdmi_get_phy(struct hdmi *hdmi)
}
phy_pdev = of_find_device_by_node(phy_node);
- if (phy_pdev)
- hdmi->phy = platform_get_drvdata(phy_pdev);
-
of_node_put(phy_node);
- if (!phy_pdev) {
- DRM_DEV_ERROR(&pdev->dev, "phy driver is not ready\n");
- return -EPROBE_DEFER;
- }
+ if (!phy_pdev)
+ return dev_err_probe(&pdev->dev, -EPROBE_DEFER, "phy driver is not ready\n");
+
+ hdmi->phy = platform_get_drvdata(phy_pdev);
if (!hdmi->phy) {
- DRM_DEV_ERROR(&pdev->dev, "phy driver is not ready\n");
put_device(&phy_pdev->dev);
- return -EPROBE_DEFER;
+ return dev_err_probe(&pdev->dev, -EPROBE_DEFER, "phy driver is not ready\n");
}
hdmi->phy_dev = &phy_pdev->dev;
@@ -130,12 +129,6 @@ static int msm_hdmi_init(struct hdmi *hdmi)
goto fail;
}
- ret = msm_hdmi_get_phy(hdmi);
- if (ret) {
- DRM_DEV_ERROR(&pdev->dev, "failed to get phy\n");
- goto fail;
- }
-
hdmi->hdcp_ctrl = msm_hdmi_hdcp_init(hdmi);
if (IS_ERR(hdmi->hdcp_ctrl)) {
dev_warn(&pdev->dev, "failed to init hdcp: disabled\n");
@@ -528,6 +521,12 @@ static int msm_hdmi_dev_probe(struct platform_device *pdev)
if (hdmi->hpd_gpiod)
gpiod_set_consumer_name(hdmi->hpd_gpiod, "HDMI_HPD");
+ ret = msm_hdmi_get_phy(hdmi);
+ if (ret) {
+ DRM_DEV_ERROR(&pdev->dev, "failed to get phy\n");
+ return ret;
+ }
+
ret = devm_pm_runtime_enable(&pdev->dev);
if (ret)
return ret;
@@ -539,7 +538,12 @@ static int msm_hdmi_dev_probe(struct platform_device *pdev)
static int msm_hdmi_dev_remove(struct platform_device *pdev)
{
+ struct hdmi *hdmi = dev_get_drvdata(&pdev->dev);
+
component_del(&pdev->dev, &msm_hdmi_ops);
+
+ msm_hdmi_put_phy(hdmi);
+
return 0;
}
