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58d4d29823
Having DRM_SUN4I built-in but DRM_SUN8I_MIXER as a loadable module results in a link error, as we try to access a symbol from the sun8i_tcon_top.ko module: ERROR: "sun8i_tcon_top_of_table" [drivers/gpu/drm/sun4i/sun8i-drm-hdmi.ko] undefined! ERROR: "sun8i_tcon_top_of_table" [drivers/gpu/drm/sun4i/sun4i-drm.ko] undefined! This solves the problem by adding a silent symbol for the tcon_top module, building it as a separate module in exactly the cases that we need it, but in a way that it is reachable by the other modules. Fixes:57e23de02f("drm/sun4i: DW HDMI: Expand algorithm for possible crtcs") Fixes:ef0cf6441f("drm/sun4i: Add support for traversing graph with TCON TOP") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180711144403.1022829-1-arnd@arndb.de
78 lines
2.3 KiB
Text
78 lines
2.3 KiB
Text
config DRM_SUN4I
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tristate "DRM Support for Allwinner A10 Display Engine"
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depends on DRM && (ARM || ARM64) && COMMON_CLK
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depends on ARCH_SUNXI || COMPILE_TEST
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select DRM_GEM_CMA_HELPER
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select DRM_KMS_HELPER
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select DRM_KMS_CMA_HELPER
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select DRM_PANEL
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select REGMAP_MMIO
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select VIDEOMODE_HELPERS
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help
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Choose this option if you have an Allwinner SoC with a
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Display Engine. If M is selected the module will be called
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sun4i-drm.
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if DRM_SUN4I
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config DRM_SUN4I_HDMI
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tristate "Allwinner A10 HDMI Controller Support"
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default DRM_SUN4I
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help
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Choose this option if you have an Allwinner SoC with an HDMI
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controller.
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config DRM_SUN4I_HDMI_CEC
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bool "Allwinner A10 HDMI CEC Support"
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depends on DRM_SUN4I_HDMI
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select CEC_CORE
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select CEC_PIN
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help
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Choose this option if you have an Allwinner SoC with an HDMI
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controller and want to use CEC.
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config DRM_SUN4I_BACKEND
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tristate "Support for Allwinner A10 Display Engine Backend"
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default DRM_SUN4I
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help
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Choose this option if you have an Allwinner SoC with the
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original Allwinner Display Engine, which has a backend to
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do some alpha blending and feed graphics to TCON. If M is
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selected the module will be called sun4i-backend.
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config DRM_SUN6I_DSI
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tristate "Allwinner A31 MIPI-DSI Controller Support"
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default MACH_SUN8I
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select CRC_CCITT
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select DRM_MIPI_DSI
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help
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Choose this option if you want have an Allwinner SoC with
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MIPI-DSI support. If M is selected the module will be called
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sun6i-dsi
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config DRM_SUN8I_DW_HDMI
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tristate "Support for Allwinner version of DesignWare HDMI"
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depends on DRM_SUN4I
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select DRM_DW_HDMI
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help
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Choose this option if you have an Allwinner SoC with the
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DesignWare HDMI controller with custom HDMI PHY. If M is
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selected the module will be called sun8i_dw_hdmi.
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config DRM_SUN8I_MIXER
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tristate "Support for Allwinner Display Engine 2.0 Mixer"
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default MACH_SUN8I
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help
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Choose this option if you have an Allwinner SoC with the
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Allwinner Display Engine 2.0, which has a mixer to do some
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graphics mixture and feed graphics to TCON, If M is
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selected the module will be called sun8i-mixer.
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config DRM_SUN8I_TCON_TOP
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tristate
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default DRM_SUN4I if DRM_SUN8I_MIXER!=n
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help
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TCON TOP is responsible for configuring display pipeline for
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HTMI, TVE and LCD.
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endif
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