2 tristate "OMAP2+ Display Subsystem support"
4 OMAP2+ Display Subsystem support.
12 This enables printing of debug messages. Alternatively, debug messages
13 can also be enabled by setting CONFIG_DYNAMIC_DEBUG and then setting
14 appropriate flags in <debugfs>/dynamic_debug/control.
16 config OMAP2_DSS_DEBUGFS
17 bool "Debugfs filesystem support"
21 This enables debugfs for OMAPDSS at <debugfs>/omapdss. This enables
22 querying about clock configuration and register configuration of dss,
23 dispc, dsi, hdmi and rfbi.
25 config OMAP2_DSS_COLLECT_IRQ_STATS
26 bool "Collect DSS IRQ statistics"
27 depends on OMAP2_DSS_DEBUGFS
30 Collect DSS IRQ statistics, printable via debugfs.
32 The statistics can be found from
33 <debugfs>/omapdss/dispc_irq for DISPC interrupts, and
34 <debugfs>/omapdss/dsi_irq for DSI interrupts.
40 DPI Interface. This is the Parallel Display Interface.
46 MIPI DBI support (RFBI, Remote Framebuffer Interface, in Texas
47 Instrument's terminology).
49 DBI is a bus between the host processor and a peripheral,
50 such as a display or a framebuffer chip.
52 See http://www.mipi.org/ for DBI specifications.
58 OMAP Video Encoder support for S-Video and composite TV-out.
64 HDMI Interface. This adds the High Definition Multimedia Interface.
65 See http://www.hdmi.org/ for HDMI specification.
67 config OMAP4_DSS_HDMI_AUDIO
74 SDI (Serial Display Interface) support.
76 SDI is a high speed one-way display serial bus between the host
77 processor and a display.
83 MIPI DSI (Display Serial Interface) support.
85 DSI is a high speed half-duplex serial interface between the host
86 processor and a peripheral, such as a display or a framebuffer chip.
88 See http://www.mipi.org/ for DSI specifications.
90 config OMAP2_DSS_MIN_FCK_PER_PCK
91 int "Minimum FCK/PCK ratio (for scaling)"
95 This can be used to adjust the minimum FCK/PCK ratio.
97 With this you can make sure that DISPC FCK is at least
98 n x PCK. Video plane scaling requires higher FCK than
101 If this is set to 0, there's no extra constraint on the
102 DISPC FCK. However, the FCK will at minimum be
103 2xPCK (if active matrix) or 3xPCK (if passive matrix).
105 Max FCK is 173MHz, so this doesn't work if your PCK
108 config OMAP2_DSS_SLEEP_AFTER_VENC_RESET
109 bool "Sleep 20ms after VENC reset"
112 There is a 20ms sleep after VENC reset which seemed to fix the
113 reset. The reason for the bug is unclear, and it's also unclear
114 on what platforms this happens.
116 This option enables the sleep, and is enabled by default. You can
117 disable the sleep if it doesn't cause problems on your platform.