linux-kernel - [PATCH 1/5] drm/rockchip: dw_hdmi_qp: Provide CEC IRQ in dw_hdmi_qp_plat

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Message-Id: <20250704-rk3588-hdmi-cec-v1-1-2bd8de8700cd@collabora.com>
Date: Fri, 04 Jul 2025 17:23:22 +0300
From: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
To: Sandy Huang <hjc@...k-chips.com>, 
 Heiko Stübner <heiko@...ech.de>, 
 Andy Yan <andy.yan@...k-chips.com>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Andrzej Hajda <andrzej.hajda@...el.com>, 
 Neil Armstrong <neil.armstrong@...aro.org>, Robert Foss <rfoss@...nel.org>, 
 Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>, 
 Laurent Pinchart <Laurent.pinchart@...asonboard.com>, 
 Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.com>, 
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>
Cc: kernel@...labora.com, dri-devel@...ts.freedesktop.org, 
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org, 
 linux-kernel@...r.kernel.org
Subject: [PATCH 1/5] drm/rockchip: dw_hdmi_qp: Provide CEC IRQ in
 dw_hdmi_qp_plat_data

In preparation to support the CEC interface of the DesignWare HDMI QP IP
block, extend the platform data to provide the required IRQ number.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
---
 drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c | 4 ++++
 include/drm/bridge/dw_hdmi_qp.h                | 1 +
 2 files changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c
index 7d531b6f4c098c6c548788dad487ce4613a2f32b..126e556025961e8645f3567b4d7a1c73cc2f2e7f 100644
--- a/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c
@@ -539,6 +539,10 @@ static int dw_hdmi_qp_rockchip_bind(struct device *dev, struct device *master,
 	if (plat_data.main_irq < 0)
 		return plat_data.main_irq;
 
+	plat_data.cec_irq = platform_get_irq_byname(pdev, "cec");
+	if (plat_data.cec_irq < 0)
+		return plat_data.cec_irq;
+
 	irq = platform_get_irq_byname(pdev, "hpd");
 	if (irq < 0)
 		return irq;
diff --git a/include/drm/bridge/dw_hdmi_qp.h b/include/drm/bridge/dw_hdmi_qp.h
index e9be6d507ad9cdc55f5c7d6d3ef37eba41f1ce74..b4a9b739734ec7b67013b683fe6017551aa19172 100644
--- a/include/drm/bridge/dw_hdmi_qp.h
+++ b/include/drm/bridge/dw_hdmi_qp.h
@@ -23,6 +23,7 @@ struct dw_hdmi_qp_plat_data {
 	const struct dw_hdmi_qp_phy_ops *phy_ops;
 	void *phy_data;
 	int main_irq;
+	int cec_irq;
 };
 
 struct dw_hdmi_qp *dw_hdmi_qp_bind(struct platform_device *pdev,

-- 
2.50.0