2 tristate "OMAP2+ Display Subsystem support"
4 OMAP2+ Display Subsystem support.
13 The amount of SDRAM to reserve at boot time for video RAM use.
14 This VRAM will be used by omapfb and other drivers that need
15 large continuous RAM area for video use.
17 You can also set this with "vram=<bytes>" kernel argument, or
20 config OMAP2_DSS_DEBUG_SUPPORT
24 This enables debug messages. You need to enable printing
25 with 'debug' module parameter.
27 config OMAP2_DSS_COLLECT_IRQ_STATS
28 bool "Collect DSS IRQ statistics"
29 depends on OMAP2_DSS_DEBUG_SUPPORT
32 Collect DSS IRQ statistics, printable via debugfs.
34 The statistics can be found from
35 <debugfs>/omapdss/dispc_irq for DISPC interrupts, and
36 <debugfs>/omapdss/dsi_irq for DSI interrupts.
42 DPI Interface. This is the Parallel Display Interface.
48 MIPI DBI support (RFBI, Remote Framebuffer Interface, in Texas
49 Instrument's terminology).
51 DBI is a bus between the host processor and a peripheral,
52 such as a display or a framebuffer chip.
54 See http://www.mipi.org/ for DBI specifications.
60 OMAP Video Encoder support for S-Video and composite TV-out.
66 HDMI Interface. This adds the High Definition Multimedia Interface.
67 See http://www.hdmi.org/ for HDMI specification.
69 config OMAP4_DSS_HDMI_AUDIO
76 SDI (Serial Display Interface) support.
78 SDI is a high speed one-way display serial bus between the host
79 processor and a display.
85 MIPI DSI (Display Serial Interface) support.
87 DSI is a high speed half-duplex serial interface between the host
88 processor and a peripheral, such as a display or a framebuffer chip.
90 See http://www.mipi.org/ for DSI specifications.
92 config OMAP2_DSS_MIN_FCK_PER_PCK
93 int "Minimum FCK/PCK ratio (for scaling)"
97 This can be used to adjust the minimum FCK/PCK ratio.
99 With this you can make sure that DISPC FCK is at least
100 n x PCK. Video plane scaling requires higher FCK than
103 If this is set to 0, there's no extra constraint on the
104 DISPC FCK. However, the FCK will at minimum be
105 2xPCK (if active matrix) or 3xPCK (if passive matrix).
107 Max FCK is 173MHz, so this doesn't work if your PCK
110 config OMAP2_DSS_SLEEP_AFTER_VENC_RESET
111 bool "Sleep 20ms after VENC reset"
114 There is a 20ms sleep after VENC reset which seemed to fix the
115 reset. The reason for the bug is unclear, and it's also unclear
116 on what platforms this happens.
118 This option enables the sleep, and is enabled by default. You can
119 disable the sleep if it doesn't cause problems on your platform.