drivers/gpu/drm/omapdrm/dss/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 config OMAP2_DSS_INIT
   3         bool
   4
   5 config OMAP_DSS_BASE
   6         tristate
   7
   8 menuconfig OMAP2_DSS
   9         tristate "OMAP2+ Display Subsystem support"
  10         select OMAP_DSS_BASE
  11         select VIDEOMODE_HELPERS
  12         select OMAP2_DSS_INIT
  13         select HDMI
  14         help
  15           OMAP2+ Display Subsystem support.
  16
  17 if OMAP2_DSS
  18
  19 config OMAP2_DSS_DEBUG
  20         bool "Debug support"
  21         default n
  22         help
  23           This enables printing of debug messages. Alternatively, debug messages
  24           can also be enabled by setting CONFIG_DYNAMIC_DEBUG and then setting
  25           appropriate flags in <debugfs>/dynamic_debug/control.
  26
  27 config OMAP2_DSS_DEBUGFS
  28         bool "Debugfs filesystem support"
  29         depends on DEBUG_FS
  30         default n
  31         help
  32           This enables debugfs for OMAPDSS at <debugfs>/omapdss. This enables
  33           querying about clock configuration and register configuration of dss,
  34           dispc, dsi, hdmi and rfbi.
  35
  36 config OMAP2_DSS_COLLECT_IRQ_STATS
  37         bool "Collect DSS IRQ statistics"
  38         depends on OMAP2_DSS_DEBUGFS
  39         default n
  40         help
  41           Collect DSS IRQ statistics, printable via debugfs.
  42
  43           The statistics can be found from
  44           <debugfs>/omapdss/dispc_irq for DISPC interrupts, and
  45           <debugfs>/omapdss/dsi_irq for DSI interrupts.
  46
  47 config OMAP2_DSS_DPI
  48         bool "DPI support"
  49         default y
  50         help
  51           DPI Interface. This is the Parallel Display Interface.
  52
  53 config OMAP2_DSS_VENC
  54         bool "VENC support"
  55         default y
  56         help
  57           OMAP Video Encoder support for S-Video and composite TV-out.
  58
  59 config OMAP2_DSS_HDMI_COMMON
  60         bool
  61
  62 config OMAP4_DSS_HDMI
  63         bool "HDMI support for OMAP4"
  64         default y
  65         select OMAP2_DSS_HDMI_COMMON
  66         help
  67           HDMI support for OMAP4 based SoCs.
  68
  69 config OMAP4_DSS_HDMI_CEC
  70         bool "Enable HDMI CEC support for OMAP4"
  71         depends on OMAP4_DSS_HDMI
  72         select CEC_CORE
  73         default y
  74         ---help---
  75           When selected the HDMI transmitter will support the CEC feature.
  76
  77 config OMAP5_DSS_HDMI
  78         bool "HDMI support for OMAP5"
  79         default n
  80         select OMAP2_DSS_HDMI_COMMON
  81         help
  82           HDMI Interface for OMAP5 and similar cores. This adds the High
  83           Definition Multimedia Interface. See http://www.hdmi.org/ for HDMI
  84           specification.
  85
  86 config OMAP2_DSS_SDI
  87         bool "SDI support"
  88         default n
  89         help
  90           SDI (Serial Display Interface) support.
  91
  92           SDI is a high speed one-way display serial bus between the host
  93           processor and a display.
  94
  95 config OMAP2_DSS_DSI
  96         bool "DSI support"
  97         default n
  98         help
  99           MIPI DSI (Display Serial Interface) support.
 100
 101           DSI is a high speed half-duplex serial interface between the host
 102           processor and a peripheral, such as a display or a framebuffer chip.
 103
 104           See http://www.mipi.org/ for DSI specifications.
 105
 106 config OMAP2_DSS_MIN_FCK_PER_PCK
 107         int "Minimum FCK/PCK ratio (for scaling)"
 108         range 0 32
 109         default 0
 110         help
 111           This can be used to adjust the minimum FCK/PCK ratio.
 112
 113           With this you can make sure that DISPC FCK is at least
 114           n x PCK. Video plane scaling requires higher FCK than
 115           normally.
 116
 117           If this is set to 0, there's no extra constraint on the
 118           DISPC FCK. However, the FCK will at minimum be
 119           2xPCK (if active matrix) or 3xPCK (if passive matrix).
 120
 121           Max FCK is 173MHz, so this doesn't work if your PCK
 122           is very high.
 123
 124 config OMAP2_DSS_SLEEP_AFTER_VENC_RESET
 125         bool "Sleep 20ms after VENC reset"
 126         default y
 127         help
 128           There is a 20ms sleep after VENC reset which seemed to fix the
 129           reset. The reason for the bug is unclear, and it's also unclear
 130           on what platforms this happens.
 131
 132           This option enables the sleep, and is enabled by default. You can
 133           disable the sleep if it doesn't cause problems on your platform.
 134
 135 endif