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(unknown [58.22.7.114]) by smtp.qiye.163.com (Hmail) with ESMTP id 249403ff0; Tue, 30 Sep 2025 17:14:32 +0800 (GMT+08:00) From: Damon Ding To: andrzej.hajda@intel.com, neil.armstrong@linaro.org, rfoss@kernel.org Cc: Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, jernej.skrabec@gmail.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, inki.dae@samsung.com, sw0312.kim@samsung.com, kyungmin.park@samsung.com, krzk@kernel.org, alim.akhtar@samsung.com, jingoohan1@gmail.com, p.zabel@pengutronix.de, hjc@rock-chips.com, heiko@sntech.de, andy.yan@rock-chips.com, dmitry.baryshkov@oss.qualcomm.com, dianders@chromium.org, m.szyprowski@samsung.com, luca.ceresoli@bootlin.com, jani.nikula@intel.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, Damon Ding Subject: [PATCH v6 04/18] drm/bridge: Move legacy bridge driver out of imx directory for multi-platform use Date: Tue, 30 Sep 2025 17:09:06 +0800 Message-Id: <20250930090920.131094-5-damon.ding@rock-chips.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250930090920.131094-1-damon.ding@rock-chips.com> References: <20250930090920.131094-1-damon.ding@rock-chips.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-HM-Tid: 0a9999e6ef1e03a3kunmd96de74a43bbef X-HM-MType: 1 X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFDSUNOT01LS0k3V1ktWUFJV1kPCRoVCBIfWUFZQ05DS1YeGh4ZTRkeS0gdQh5WFRQJFh oXVRMBExYaEhckFA4PWVdZGBILWUFZTkNVSUlVTFVKSk9ZV1kWGg8SFR0UWUFZT0tIVUpLSEpKQk 1VSktLVUpCWQY+ DKIM-Signature: a=rsa-sha256; b=jutpg2QsijRz2attaaPkPccyJ3Melcd1RJU+J5vSgywIXQy+X1Gg5w0sp7mwHb1kx9/mgrVcGYbKsTqxWZhCf27mZ04saHC4Jn+9JfMUOFPTEFRnWxVvTv71iDpDNmk1I5GZw/UyzhLmGkZorkt7LzY1pKLkWSkGYI/B3s3Odb4=; c=relaxed/relaxed; s=default; d=rock-chips.com; v=1; bh=D8xesRGD6O/As+P5vaiSAXXfAHf6JkNbQ3WmOYLpR4Q=; h=date:mime-version:subject:message-id:from; X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250930_021437_772307_A0187498 X-CRM114-Status: GOOD ( 24.40 ) 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 As suggested by Dmitry, the DRM legacy bridge driver can be pulled out of imx/ subdir for multi-platform use. The driver is also renamed to make it more generic and suitable for platforms other than i.MX. Additionally, a new API drm_bridge_is_legacy() is added to identify the legacy bridge, allowing specialized handling for such cases. Signed-off-by: Damon Ding Suggested-by: Dmitry Baryshkov --- drivers/gpu/drm/bridge/Kconfig | 10 ++ drivers/gpu/drm/bridge/Makefile | 1 + drivers/gpu/drm/bridge/imx/Kconfig | 10 -- drivers/gpu/drm/bridge/imx/Makefile | 1 - .../gpu/drm/bridge/imx/imx-legacy-bridge.c | 91 ----------------- drivers/gpu/drm/bridge/legacy-bridge.c | 99 +++++++++++++++++++ drivers/gpu/drm/imx/ipuv3/Kconfig | 4 +- drivers/gpu/drm/imx/ipuv3/imx-ldb.c | 6 +- drivers/gpu/drm/imx/ipuv3/parallel-display.c | 4 +- include/drm/bridge/imx.h | 17 ---- include/drm/bridge/legacy-bridge.h | 18 ++++ 11 files changed, 135 insertions(+), 126 deletions(-) delete mode 100644 drivers/gpu/drm/bridge/imx/imx-legacy-bridge.c create mode 100644 drivers/gpu/drm/bridge/legacy-bridge.c delete mode 100644 include/drm/bridge/imx.h create mode 100644 include/drm/bridge/legacy-bridge.h diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig index a250afd8d662..77d8de3fa8c4 100644 --- a/drivers/gpu/drm/bridge/Kconfig +++ b/drivers/gpu/drm/bridge/Kconfig @@ -125,6 +125,16 @@ config DRM_ITE_IT6505 help ITE IT6505 DisplayPort bridge chip driver. +config DRM_LEGACY_BRIDGE + tristate + depends on DRM_BRIDGE && OF + help + This is a DRM bridge implementation that uses of_get_drm_display_mode + to acquire display mode. + + Newer designs should not use this bridge and should use proper panel + driver instead. + config DRM_LONTIUM_LT8912B tristate "Lontium LT8912B DSI/HDMI bridge" depends on OF diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makefile index c7dc03182e59..f2cb7b4f26e5 100644 --- a/drivers/gpu/drm/bridge/Makefile +++ b/drivers/gpu/drm/bridge/Makefile @@ -12,6 +12,7 @@ obj-$(CONFIG_DRM_I2C_NXP_TDA998X) += tda998x.o obj-$(CONFIG_DRM_ITE_IT6263) += ite-it6263.o obj-$(CONFIG_DRM_ITE_IT6505) += ite-it6505.o +obj-$(CONFIG_DRM_LEGACY_BRIDGE) += legacy-bridge.o obj-$(CONFIG_DRM_LONTIUM_LT8912B) += lontium-lt8912b.o obj-$(CONFIG_DRM_LONTIUM_LT9211) += lontium-lt9211.o obj-$(CONFIG_DRM_LONTIUM_LT9611) += lontium-lt9611.o diff --git a/drivers/gpu/drm/bridge/imx/Kconfig b/drivers/gpu/drm/bridge/imx/Kconfig index 9a480c6abb85..8dd89efa8ea7 100644 --- a/drivers/gpu/drm/bridge/imx/Kconfig +++ b/drivers/gpu/drm/bridge/imx/Kconfig @@ -3,16 +3,6 @@ if ARCH_MXC || COMPILE_TEST config DRM_IMX_LDB_HELPER tristate -config DRM_IMX_LEGACY_BRIDGE - tristate - depends on DRM_IMX - help - This is a DRM bridge implementation for the DRM i.MX IPUv3 driver, - that uses of_get_drm_display_mode to acquire display mode. - - Newer designs should not use this bridge and should use proper panel - driver instead. - config DRM_IMX8MP_DW_HDMI_BRIDGE tristate "Freescale i.MX8MP HDMI-TX bridge support" depends on OF diff --git a/drivers/gpu/drm/bridge/imx/Makefile b/drivers/gpu/drm/bridge/imx/Makefile index dd5d48584806..edb0a7b71b30 100644 --- a/drivers/gpu/drm/bridge/imx/Makefile +++ b/drivers/gpu/drm/bridge/imx/Makefile @@ -1,5 +1,4 @@ obj-$(CONFIG_DRM_IMX_LDB_HELPER) += imx-ldb-helper.o -obj-$(CONFIG_DRM_IMX_LEGACY_BRIDGE) += imx-legacy-bridge.o obj-$(CONFIG_DRM_IMX8MP_DW_HDMI_BRIDGE) += imx8mp-hdmi-tx.o obj-$(CONFIG_DRM_IMX8MP_HDMI_PVI) += imx8mp-hdmi-pvi.o obj-$(CONFIG_DRM_IMX8QM_LDB) += imx8qm-ldb.o diff --git a/drivers/gpu/drm/bridge/imx/imx-legacy-bridge.c b/drivers/gpu/drm/bridge/imx/imx-legacy-bridge.c deleted file mode 100644 index 0e31d5000e7c..000000000000 --- a/drivers/gpu/drm/bridge/imx/imx-legacy-bridge.c +++ /dev/null @@ -1,91 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Freescale i.MX drm driver - * - * bridge driver for legacy DT bindings, utilizing display-timings node - */ - -#include - -#include -#include -#include -#include - -#include