命令传输(mipi host->mipi bridge),sec_mipi_dsim_host_transfer将mipi_msg那边需要发送的command设置进SFR寄存器,并且读取SFR寄存器获得mipi返回的响应。 2.sec_mipi_dsim_bridge_funcs static const struct drm_bridge_funcs sec_mipi_dsim_bridge_funcs = { .attach = sec_mipi_dsim_bridge_attach, .enable =...
rk3288在kernel4.4开始使用的显示框架是基于DRM的。DRM全称是Direct Rendering Manager，管理进行显示输出...
it6263->bridge.funcs=&it6263_bridge_funcs; it6263->bridge.of_node=np; it6263->bridge.ops=DRM_BRIDGE_OP_DETECT|DRM_BRIDGE_OP_EDID| DRM_BRIDGE_OP_MODES; it6263->bridge.type=DRM_MODE_CONNECTOR_HDMIA; drm_bridge_add(&it6263->bridge); ...
struct drm_bridge_funcs用于描述bridge的控制函数,定义在include/drm/drm_bridge.h;View Code /** * struct drm_bridge_funcs - drm_bridge control functions */ struct drm_bridge_funcs { /** * @attach: * * This callback is invoked whenever our bridge is being attached to a * &drm_encoder....
static const struct drm_connector_funcs drm_bridge_connector_funcs = { .reset = drm_atomic_helper_connector_reset, .reset = drm_bridge_connector_reset, .detect = drm_bridge_connector_detect, .fill_modes = drm_helper_probe_single_connector_modes, .atomic_duplicate_state = drm_atomic_helper_co...
bridge->encoder) { > + DRM_DEV_ERROR(dev, "Parent encoder object not found"); > + return -ENODEV; > + } > + > + err = drm_connector_init(bridge->dev, &it6505->connector, > + &it6505_connector_funcs, > + DRM_MODE_CONNECTOR_DisplayPort); > + if (err < 0) { > + DRM_...
由于Rockchip采用了Synopsys的DesignWare HDMI IP解决方案,因此hdmi驱动的核心实现是位于drivers/gpu/drm/bridge/synopsys/目录下的,而Rockchip仅仅是对其进行一层封装。 对于DesignWare HDMI控制器,通常会有与之配套的PHY驱动,以确保HDMI信号能够正确地通过电缆传输,具体来说: ...
This patch adds drm_bridge driver for parade DSI to eDP bridge chip. Signed-off-by: Jitao Shi <jitao...@mediatek.com> --- Changes since v5 -fix compile errors when CONFIG_GPIOLIB=n --- drivers/gpu/drm/bridge/Kconfig | 10 + drivers/gpu/drm/bridge/Makefile | 1 + drivers/gpu/drm...
Elixir Cross Referencer - source code of Linux v6.13.4: drivers/gpu/drm/bridge/lontium-lt9611uxc.c
从上面的 log 我们可以看到,在第 6 行和第 18 行,mipi dsi 驱动因为找不到 panel 或者 bridge 这个依赖资源,而返回-EPROBE_DEFER 退出,一直到第 23 行,dsi 驱动获取到依赖的资源 bind 成功,最终看到整个 drm 驱动完成加载的标准 log。 DTS配置: ...