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         default n
  14         help
  15           This enables printing of debug messages. Alternatively, debug messages
  16           can also be enabled by setting CONFIG_DYNAMIC_DEBUG and then setting
  17           appropriate flags in <debugfs>/dynamic_debug/control.
  18
  19 config FB_OMAP2_DSS_DEBUGFS
  20         bool "Debugfs filesystem support"
  21         depends on DEBUG_FS
  22         default n
  23         help
  24           This enables debugfs for OMAPDSS at <debugfs>/omapdss. This enables
  25           querying about clock configuration and register configuration of dss,
  26           dispc, dsi, hdmi and rfbi.
  27
  28 config FB_OMAP2_DSS_COLLECT_IRQ_STATS
  29         bool "Collect DSS IRQ statistics"
  30         depends on FB_OMAP2_DSS_DEBUGFS
  31         default n
  32         help
  33           Collect DSS IRQ statistics, printable via debugfs.
  34
  35           The statistics can be found from
  36           <debugfs>/omapdss/dispc_irq for DISPC interrupts, and
  37           <debugfs>/omapdss/dsi_irq for DSI interrupts.
  38
  39 config FB_OMAP2_DSS_DPI
  40         bool "DPI support"
  41         default y
  42         help
  43           DPI Interface. This is the Parallel Display Interface.
  44
  45 config FB_OMAP2_DSS_RFBI
  46         bool "RFBI support"
  47         depends on BROKEN
  48         default n
  49         help
  50           MIPI DBI support (RFBI, Remote Framebuffer Interface, in Texas
  51           Instrument's terminology).
  52
  53           DBI is a bus between the host processor and a peripheral,
  54           such as a display or a framebuffer chip.
  55
  56           See http://www.mipi.org/ for DBI specifications.
  57
  58 config FB_OMAP2_DSS_VENC
  59         bool "VENC support"
  60         default y
  61         help
  62           OMAP Video Encoder support for S-Video and composite TV-out.
  63
  64 config FB_OMAP2_DSS_HDMI_COMMON
  65         bool
  66
  67 config FB_OMAP4_DSS_HDMI
  68         bool "HDMI support for OMAP4"
  69         default y
  70         select FB_OMAP2_DSS_HDMI_COMMON
  71         help
  72           HDMI support for OMAP4 based SoCs.
  73
  74 config FB_OMAP5_DSS_HDMI
  75         bool "HDMI support for OMAP5"
  76         default n
  77         select FB_OMAP2_DSS_HDMI_COMMON
  78         help
  79           HDMI Interface for OMAP5 and similar cores. This adds the High
  80           Definition Multimedia Interface. See http://www.hdmi.org/ for HDMI
  81           specification.
  82
  83 config FB_OMAP2_DSS_SDI
  84         bool "SDI support"
  85         default n
  86         help
  87           SDI (Serial Display Interface) support.
  88
  89           SDI is a high speed one-way display serial bus between the host
  90           processor and a display.
  91
  92 config FB_OMAP2_DSS_DSI
  93         bool "DSI support"
  94         default n
  95         help
  96           MIPI DSI (Display Serial Interface) support.
  97
  98           DSI is a high speed half-duplex serial interface between the host
  99           processor and a peripheral, such as a display or a framebuffer chip.
 100
 101           See http://www.mipi.org/ for DSI specifications.
 102
 103 config FB_OMAP2_DSS_MIN_FCK_PER_PCK
 104         int "Minimum FCK/PCK ratio (for scaling)"
 105         range 0 32
 106         default 0
 107         help
 108           This can be used to adjust the minimum FCK/PCK ratio.
 109
 110           With this you can make sure that DISPC FCK is at least
 111           n x PCK. Video plane scaling requires higher FCK than
 112           normally.
 113
 114           If this is set to 0, there's no extra constraint on the
 115           DISPC FCK. However, the FCK will at minimum be
 116           2xPCK (if active matrix) or 3xPCK (if passive matrix).
 117
 118           Max FCK is 173MHz, so this doesn't work if your PCK
 119           is very high.
 120
 121 config FB_OMAP2_DSS_SLEEP_AFTER_VENC_RESET
 122         bool "Sleep 20ms after VENC reset"
 123         default y
 124         help
 125           There is a 20ms sleep after VENC reset which seemed to fix the
 126           reset. The reason for the bug is unclear, and it's also unclear
 127           on what platforms this happens.
 128
 129           This option enables the sleep, and is enabled by default. You can
 130           disable the sleep if it doesn't cause problems on your platform.