linux-kernel - [PATCH 1/4] drm/bridge: dw-hdmi: Add function to get plat

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Message-Id: <20250718101150.3681002-2-shengjiu.wang@nxp.com>
Date: Fri, 18 Jul 2025 18:11:47 +0800
From: Shengjiu Wang <shengjiu.wang@....com>
To: andrzej.hajda@...el.com,
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Subject: [PATCH 1/4] drm/bridge: dw-hdmi: Add function to get plat_data

The enable_audio() and disable_audio() callback pointers are in
plat_data structure, and the audio device driver needs to get plat_data
for assign these pointers. So add a function to export plat_data
structure.

Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 6 ++++++
 include/drm/bridge/dw_hdmi.h              | 1 +
 2 files changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 76c6570e2a85..3dfa42178f6c 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -198,6 +198,12 @@ struct dw_hdmi {
 	enum drm_connector_status last_connector_result;
 };
 
+const struct dw_hdmi_plat_data *dw_hdmi_to_plat_data(struct dw_hdmi *hdmi)
+{
+	return hdmi->plat_data;
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_to_plat_data);
+
 #define HDMI_IH_PHY_STAT0_RX_SENSE \
 	(HDMI_IH_PHY_STAT0_RX_SENSE0 | HDMI_IH_PHY_STAT0_RX_SENSE1 | \
 	 HDMI_IH_PHY_STAT0_RX_SENSE2 | HDMI_IH_PHY_STAT0_RX_SENSE3)
diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
index 6a46baa0737c..a56a3519a22a 100644
--- a/include/drm/bridge/dw_hdmi.h
+++ b/include/drm/bridge/dw_hdmi.h
@@ -208,4 +208,5 @@ void dw_hdmi_phy_setup_hpd(struct dw_hdmi *hdmi, void *data);
 
 bool dw_hdmi_bus_fmt_is_420(struct dw_hdmi *hdmi);
 
+const struct dw_hdmi_plat_data *dw_hdmi_to_plat_data(struct dw_hdmi *hdmi);
 #endif /* __IMX_HDMI_H__ */
-- 
2.34.1