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(unknown [58.22.7.114]) by smtp.qiye.163.com (Hmail) with ESMTP id 396d58c6e; Fri, 3 Apr 2026 15:00:36 +0800 (GMT+08:00) From: Damon Ding To: andrzej.hajda@intel.com, neil.armstrong@linaro.org, rfoss@kernel.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, hjc@rock-chips.com, heiko@sntech.de, andy.yan@rock-chips.com, wens@kernel.org, samuel@sholland.org, luca.ceresoli@bootlin.com Cc: Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, jernej.skrabec@gmail.com, victor.liu@nxp.com, dmitry.baryshkov@oss.qualcomm.com, shengjiu.wang@nxp.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, Damon Ding Subject: [PATCH v1 1/4] drm/bridge: dw-hdmi: Pass bridge attach flags for dw_hdmi_bind() Date: Fri, 3 Apr 2026 15:00:29 +0800 Message-Id: <20260403070032.447102-2-damon.ding@rock-chips.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260403070032.447102-1-damon.ding@rock-chips.com> References: <20260403070032.447102-1-damon.ding@rock-chips.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-HM-Tid: 0a9d5224cc9f03a3kunm1d6b6bc811de6a X-HM-MType: 1 X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFDSUNOT01LS0k3V1ktWUFJV1kPCRoVCBIfWUFZGRlLHVZJGUIaGklMT0tOHh5WFRQJFh oXVRMBExYaEhckFA4PWVdZGBILWUFZTkNVSUlVTFVKSk9ZV1kWGg8SFR0UWUFZT0tIVUpLSU9PT0 hVSktLVUpCS0tZBg++ DKIM-Signature: a=rsa-sha256; b=OlOoyejoOkXGTU0c6apybdH7VloZYuymy3nY8UshMSA/uZrhmc5R0e/cHRqTMPPT4ts1ZuQHeZtwbl5PrhrJw/gbb17xqSbn8A58hlp6/36pSUmFjsTJo5DU0GsPN2VZxUpglrz+Vek1RK0D28zCnasPVmCr9eMpxEtc1kwl/7E=; s=default; c=relaxed/relaxed; d=rock-chips.com; v=1; bh=McMc5vAPh2G/cVqrH2p4ek7fEhv61YfNK/RtiS2LLiY=; h=date:mime-version:subject:message-id:from; X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260403_000049_727712_7E5026A9 X-CRM114-Status: GOOD ( 10.56 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org For Rockchip and Allwinner platforms, the HDMI encoder attaches the dw-hdmi bridge via dw_hdmi_bind(). This additional bridge attach flag serves as preparation for the Rockchip dw-hdmi driver to support the bridge-connector framework. Signed-off-by: Damon Ding --- drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 5 +++-- drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 2 +- drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c | 2 +- include/drm/bridge/dw_hdmi.h | 4 +++- 4 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c index ada45e8b3e2c..dd50dda3a4f5 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c @@ -3619,7 +3619,8 @@ EXPORT_SYMBOL_GPL(dw_hdmi_remove); */ struct dw_hdmi *dw_hdmi_bind(struct platform_device *pdev, struct drm_encoder *encoder, - const struct dw_hdmi_plat_data *plat_data) + const struct dw_hdmi_plat_data *plat_data, + enum drm_bridge_attach_flags flags) { struct dw_hdmi *hdmi; int ret; @@ -3628,7 +3629,7 @@ struct dw_hdmi *dw_hdmi_bind(struct platform_device *pdev, if (IS_ERR(hdmi)) return hdmi; - ret = drm_bridge_attach(encoder, &hdmi->bridge, NULL, 0); + ret = drm_bridge_attach(encoder, &hdmi->bridge, NULL, flags); if (ret) { dw_hdmi_remove(hdmi); return ERR_PTR(ret); diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c index 0dc1eb5d2ae3..21b141b7cb9c 100644 --- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c +++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c @@ -608,7 +608,7 @@ static int dw_hdmi_rockchip_bind(struct device *dev, struct device *master, platform_set_drvdata(pdev, hdmi); - hdmi->hdmi = dw_hdmi_bind(pdev, encoder, plat_data); + hdmi->hdmi = dw_hdmi_bind(pdev, encoder, plat_data, 0); /* * If dw_hdmi_bind() fails we'll never call dw_hdmi_unbind(), diff --git a/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c b/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c index 96532709c2a7..04173335f7e7 100644 --- a/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c +++ b/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c @@ -188,7 +188,7 @@ static int sun8i_dw_hdmi_bind(struct device *dev, struct device *master, platform_set_drvdata(pdev, hdmi); - hdmi->hdmi = dw_hdmi_bind(pdev, encoder, plat_data); + hdmi->hdmi = dw_hdmi_bind(pdev, encoder, plat_data, 0); /* * If dw_hdmi_bind() fails we'll never call dw_hdmi_unbind(), diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h index 8500dd4f99d8..e789fb451ef2 100644 --- a/include/drm/bridge/dw_hdmi.h +++ b/include/drm/bridge/dw_hdmi.h @@ -6,6 +6,7 @@ #ifndef __DW_HDMI__ #define __DW_HDMI__ +#include #include struct drm_display_info; @@ -182,7 +183,8 @@ void dw_hdmi_remove(struct dw_hdmi *hdmi); void dw_hdmi_unbind(struct dw_hdmi *hdmi); struct dw_hdmi *dw_hdmi_bind(struct platform_device *pdev, struct drm_encoder *encoder, - const struct dw_hdmi_plat_data *plat_data); + const struct dw_hdmi_plat_data *plat_data, + enum drm_bridge_attach_flags flags); void dw_hdmi_resume(struct dw_hdmi *hdmi); -- 2.34.1