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drm/vc4: Allow setting the TV norm via module parameter
Similar to the ch7006 and nouveau drivers, introduce a "tv_mode" module parameter that allow setting the TV norm by specifying vc4.tv_norm= on the kernel command line. If that is not specified, try inferring one of the most popular norms (PAL or NTSC) from the video mode specified on the command line. On Raspberry Pis, this causes the most common cases of the sdtv_mode setting in config.txt to be respected. Signed-off-by: Mateusz Kwiatkowski <[email protected]> drm/vc4: Do not reset tv mode as this is already handled by framework In vc4_vec_connector_reset, the tv mode is already reset to the property default by drm_atomic_helper_connector_tv_reset, so there is no need for a local fixup to potentially some other default. Fixes: 96922af ("drm/vc4: Allow setting the TV norm via module parameter") Signed-off-by: Dave Stevenson <[email protected]>
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