[Letux-kernel] [PATCH v12 5/9] drm/synopsys+ingenic: repair hot plug detection

H. Nikolaus Schaller hns at goldelico.com
Mon Jan 31 13:26:51 CET 2022


so that it calls drm_kms_helper_hotplug_event().

We need to set .poll_enabled but that struct component
can only be accessed in the core code. Hence we add a public
setter function.

Signed-off-by: H. Nikolaus Schaller <hns at goldelico.com>
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 9 +++++++++
 drivers/gpu/drm/ingenic/ingenic-dw-hdmi.c | 2 ++
 include/drm/bridge/dw_hdmi.h              | 1 +
 3 files changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 54d8fdad395f5..52e7cd2e020d3 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -3216,6 +3216,15 @@ static int dw_hdmi_parse_dt(struct dw_hdmi *hdmi)
 	return 0;
 }
 
+void dw_hdmi_enable_poll(struct dw_hdmi *hdmi, bool enable)
+{
+	if (hdmi->bridge.dev)
+		hdmi->bridge.dev->mode_config.poll_enabled = enable;
+	else
+		dev_warn(hdmi->dev, "no hdmi->bridge.dev");
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_enable_poll);
+
 struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev,
 			      const struct dw_hdmi_plat_data *plat_data)
 {
diff --git a/drivers/gpu/drm/ingenic/ingenic-dw-hdmi.c b/drivers/gpu/drm/ingenic/ingenic-dw-hdmi.c
index 34e986dd606cf..90547a28dc5c7 100644
--- a/drivers/gpu/drm/ingenic/ingenic-dw-hdmi.c
+++ b/drivers/gpu/drm/ingenic/ingenic-dw-hdmi.c
@@ -55,6 +55,8 @@ ingenic_dw_hdmi_mode_valid(struct dw_hdmi *hdmi, void *data,
 	if (mode->clock > 216000)
 		return MODE_CLOCK_HIGH;
 
+	dw_hdmi_enable_poll(hdmi, true);
+
 	return MODE_OK;
 }
 
diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
index 2a1f85f9a8a3f..963960794b40e 100644
--- a/include/drm/bridge/dw_hdmi.h
+++ b/include/drm/bridge/dw_hdmi.h
@@ -196,5 +196,6 @@ enum drm_connector_status dw_hdmi_phy_read_hpd(struct dw_hdmi *hdmi,
 void dw_hdmi_phy_update_hpd(struct dw_hdmi *hdmi, void *data,
 			    bool force, bool disabled, bool rxsense);
 void dw_hdmi_phy_setup_hpd(struct dw_hdmi *hdmi, void *data);
+void dw_hdmi_enable_poll(struct dw_hdmi *hdmi, bool enable);
 
 #endif /* __IMX_HDMI_H__ */
-- 
2.33.0



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