drivers/video/fbdev/omap2/omapfb/dss/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0
   2 config FB_OMAP2_DSS_INIT
   3         bool
   4
   5 config FB_OMAP2_DSS
   6         tristate
   7         select VIDEOMODE_HELPERS
   8         select FB_OMAP2_DSS_INIT
   9         select HDMI
  10
  11 config FB_OMAP2_DSS_DEBUG
  12         bool "Debug support"
  13         help
  14           This enables printing of debug messages. Alternatively, debug messages
  15           can also be enabled by setting CONFIG_DYNAMIC_DEBUG and then setting
  16           appropriate flags in <debugfs>/dynamic_debug/control.
  17
  18 config FB_OMAP2_DSS_DEBUGFS
  19         bool "Debugfs filesystem support"
  20         depends on DEBUG_FS
  21         help
  22           This enables debugfs for OMAPDSS at <debugfs>/omapdss. This enables
  23           querying about clock configuration and register configuration of dss,
  24           dispc, dsi, hdmi and rfbi.
  25
  26 config FB_OMAP2_DSS_COLLECT_IRQ_STATS
  27         bool "Collect DSS IRQ statistics"
  28         depends on FB_OMAP2_DSS_DEBUGFS
  29         help
  30           Collect DSS IRQ statistics, printable via debugfs.
  31
  32           The statistics can be found from
  33           <debugfs>/omapdss/dispc_irq for DISPC interrupts, and
  34           <debugfs>/omapdss/dsi_irq for DSI interrupts.
  35
  36 config FB_OMAP2_DSS_DPI
  37         bool "DPI support"
  38         default y
  39         help
  40           DPI Interface. This is the Parallel Display Interface.
  41
  42 config FB_OMAP2_DSS_RFBI
  43         bool "RFBI support"
  44         depends on BROKEN
  45         help
  46           MIPI DBI support (RFBI, Remote Framebuffer Interface, in Texas
  47           Instrument's terminology).
  48
  49           DBI is a bus between the host processor and a peripheral,
  50           such as a display or a framebuffer chip.
  51
  52           See http://www.mipi.org/ for DBI specifications.
  53
  54 config FB_OMAP2_DSS_VENC
  55         bool "VENC support"
  56         default y
  57         help
  58           OMAP Video Encoder support for S-Video and composite TV-out.
  59
  60 config FB_OMAP2_DSS_HDMI_COMMON
  61         bool
  62
  63 config FB_OMAP4_DSS_HDMI
  64         bool "HDMI support for OMAP4"
  65         default y
  66         select FB_OMAP2_DSS_HDMI_COMMON
  67         help
  68           HDMI support for OMAP4 based SoCs.
  69
  70 config FB_OMAP5_DSS_HDMI
  71         bool "HDMI support for OMAP5"
  72         select FB_OMAP2_DSS_HDMI_COMMON
  73         help
  74           HDMI Interface for OMAP5 and similar cores. This adds the High
  75           Definition Multimedia Interface. See http://www.hdmi.org/ for HDMI
  76           specification.
  77
  78 config FB_OMAP2_DSS_SDI
  79         bool "SDI support"
  80         help
  81           SDI (Serial Display Interface) support.
  82
  83           SDI is a high speed one-way display serial bus between the host
  84           processor and a display.
  85
  86 config FB_OMAP2_DSS_DSI
  87         bool "DSI support"
  88         help
  89           MIPI DSI (Display Serial Interface) support.
  90
  91           DSI is a high speed half-duplex serial interface between the host
  92           processor and a peripheral, such as a display or a framebuffer chip.
  93
  94           See http://www.mipi.org/ for DSI specifications.
  95
  96 config FB_OMAP2_DSS_MIN_FCK_PER_PCK
  97         int "Minimum FCK/PCK ratio (for scaling)"
  98         range 0 32
  99         default 0
 100         help
 101           This can be used to adjust the minimum FCK/PCK ratio.
 102
 103           With this you can make sure that DISPC FCK is at least
 104           n x PCK. Video plane scaling requires higher FCK than
 105           normally.
 106
 107           If this is set to 0, there's no extra constraint on the
 108           DISPC FCK. However, the FCK will at minimum be
 109           2xPCK (if active matrix) or 3xPCK (if passive matrix).
 110
 111           Max FCK is 173MHz, so this doesn't work if your PCK
 112           is very high.
 113
 114 config FB_OMAP2_DSS_SLEEP_AFTER_VENC_RESET
 115         bool "Sleep 20ms after VENC reset"
 116         default y
 117         help
 118           There is a 20ms sleep after VENC reset which seemed to fix the
 119           reset. The reason for the bug is unclear, and it's also unclear
 120           on what platforms this happens.
 121
 122           This option enables the sleep, and is enabled by default. You can
 123           disable the sleep if it doesn't cause problems on your platform.