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RKL uses the DDI A, DDI B, DDI USBC1, DDI USBC2 from the DE point of view, so all DDI/pipe/transcoder register use these indexes to refer to them. Combo phy and IO functions follow another namespace that we keep as "enum phy". The VBT in theory would use the DE point of view, but that does not happen in practice. Provide a table to convert the child devices to the "correct" port numbering we use. Now this is the output we get while reading the VBT: DDIA: [drm:intel_bios_port_aux_ch [i915]] using AUX A for port A (VBT) [drm:intel_dp_init_connector [i915]] Adding DP connector on [ENCODER:275:DDI A] [drm:intel_hdmi_init_connector [i915]] Adding HDMI connector on [ENCODER:275:DDI A] [drm:intel_hdmi_init_connector [i915]] Using DDC pin 0x1 for port A (VBT) DDIB: [drm:intel_bios_port_aux_ch [i915]] using AUX B for port B (platform default) [drm:intel_hdmi_init_connector [i915]] Adding HDMI connector on [ENCODER:291:DDI B] [drm:intel_hdmi_init_connector [i915]] Using DDC pin 0x2 for port B (VBT) DDI USBC1: [drm:intel_bios_port_aux_ch [i915]] using AUX D for port D (VBT) [drm:intel_dp_init_connector [i915]] Adding DP connector on [ENCODER:295:DDI D] [drm:intel_hdmi_init_connector [i915]] Adding HDMI connector on [ENCODER:295:DDI D] [drm:intel_hdmi_init_connector [i915]] Using DDC pin 0x3 for port D (VBT) DDI USBC2: [drm:intel_bios_port_aux_ch [i915]] using AUX E for port E (VBT) [drm:intel_dp_init_connector [i915]] Adding DP connector on [ENCODER:306:DDI E] [drm:intel_hdmi_init_connector [i915]] Adding HDMI connector on [ENCODER:306:DDI E] [drm:intel_hdmi_init_connector [i915]] Using DDC pin 0x9 for port E (VBT) Cc: Clinton Taylor <Clinton.A.Taylor@intel.com> Cc: Aditya Swarup <aditya.swarup@intel.com> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200603211529.3005059-7-matthew.d.roper@intel.com |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.