2 tristate "OMAP2+ Display Subsystem support"
3 depends on ARCH_OMAP2PLUS
5 OMAP2+ Display Subsystem support.
14 The amount of SDRAM to reserve at boot time for video RAM use.
15 This VRAM will be used by omapfb and other drivers that need
16 large continuous RAM area for video use.
18 You can also set this with "vram=<bytes>" kernel argument, or
21 config OMAP2_DSS_DEBUG_SUPPORT
25 This enables debug messages. You need to enable printing
26 with 'debug' module parameter.
28 config OMAP2_DSS_COLLECT_IRQ_STATS
29 bool "Collect DSS IRQ statistics"
30 depends on OMAP2_DSS_DEBUG_SUPPORT
33 Collect DSS IRQ statistics, printable via debugfs.
35 The statistics can be found from
36 <debugfs>/omapdss/dispc_irq for DISPC interrupts, and
37 <debugfs>/omapdss/dsi_irq for DSI interrupts.
43 DPI Interface. This is the Parallel Display Interface.
49 MIPI DBI support (RFBI, Remote Framebuffer Interface, in Texas
50 Instrument's terminology).
52 DBI is a bus between the host processor and a peripheral,
53 such as a display or a framebuffer chip.
55 See http://www.mipi.org/ for DBI spesifications.
61 OMAP Video Encoder support for S-Video and composite TV-out.
68 HDMI Interface. This adds the High Definition Multimedia Interface.
69 See http://www.hdmi.org/ for HDMI specification.
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.
83 depends on ARCH_OMAP3 || ARCH_OMAP4
86 MIPI DSI (Display Serial Interface) support.
88 DSI is a high speed half-duplex serial interface between the host
89 processor and a peripheral, such as a display or a framebuffer chip.
91 See http://www.mipi.org/ for DSI spesifications.
93 config OMAP2_DSS_FAKE_VSYNC
94 bool "Fake VSYNC irq from manual update displays"
97 If this is selected, DSI will generate a fake DISPC VSYNC interrupt
98 when DSI has sent a frame. This is only needed with DSI or RFBI
99 displays using manual mode, and you want VSYNC to, for example,
102 config OMAP2_DSS_MIN_FCK_PER_PCK
103 int "Minimum FCK/PCK ratio (for scaling)"
107 This can be used to adjust the minimum FCK/PCK ratio.
109 With this you can make sure that DISPC FCK is at least
110 n x PCK. Video plane scaling requires higher FCK than
113 If this is set to 0, there's no extra constraint on the
114 DISPC FCK. However, the FCK will at minimum be
115 2xPCK (if active matrix) or 3xPCK (if passive matrix).
117 Max FCK is 173MHz, so this doesn't work if your PCK
120 config OMAP2_DSS_SLEEP_AFTER_VENC_RESET
121 bool "Sleep 20ms after VENC reset"
124 There is a 20ms sleep after VENC reset which seemed to fix the
125 reset. The reason for the bug is unclear, and it's also unclear
126 on what platforms this happens.
128 This option enables the sleep, and is enabled by default. You can
129 disable the sleep if it doesn't cause problems on your platform.