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Linux kernel mirror (for testing)
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linux
1menuconfig OMAP2_DSS
2 tristate "OMAP2+ Display Subsystem support"
3 depends on ARCH_OMAP2PLUS
4 help
5 OMAP2+ Display Subsystem support.
6
7if OMAP2_DSS
8
9config OMAP2_VRAM_SIZE
10 int "VRAM size (MB)"
11 range 0 32
12 default 0
13 help
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.
17
18 You can also set this with "vram=<bytes>" kernel argument, or
19 in the board file.
20
21config OMAP2_DSS_DEBUG_SUPPORT
22 bool "Debug support"
23 default y
24 help
25 This enables debug messages. You need to enable printing
26 with 'debug' module parameter.
27
28config OMAP2_DSS_COLLECT_IRQ_STATS
29 bool "Collect DSS IRQ statistics"
30 depends on OMAP2_DSS_DEBUG_SUPPORT
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
39config OMAP2_DSS_DPI
40 bool "DPI support"
41 default y
42 help
43 DPI Interface. This is the Parallel Display Interface.
44
45config OMAP2_DSS_RFBI
46 bool "RFBI support"
47 default n
48 help
49 MIPI DBI support (RFBI, Remote Framebuffer Interface, in Texas
50 Instrument's terminology).
51
52 DBI is a bus between the host processor and a peripheral,
53 such as a display or a framebuffer chip.
54
55 See http://www.mipi.org/ for DBI specifications.
56
57config OMAP2_DSS_VENC
58 bool "VENC support"
59 default y
60 help
61 OMAP Video Encoder support for S-Video and composite TV-out.
62
63config OMAP4_DSS_HDMI
64 bool "HDMI support"
65 depends on ARCH_OMAP4
66 default y
67 help
68 HDMI Interface. This adds the High Definition Multimedia Interface.
69 See http://www.hdmi.org/ for HDMI specification.
70
71config OMAP4_DSS_HDMI_AUDIO
72 bool
73 depends on OMAP4_DSS_HDMI
74
75config OMAP2_DSS_SDI
76 bool "SDI support"
77 depends on ARCH_OMAP3
78 default n
79 help
80 SDI (Serial Display Interface) support.
81
82 SDI is a high speed one-way display serial bus between the host
83 processor and a display.
84
85config OMAP2_DSS_DSI
86 bool "DSI support"
87 depends on ARCH_OMAP3 || ARCH_OMAP4
88 default n
89 help
90 MIPI DSI (Display Serial Interface) support.
91
92 DSI is a high speed half-duplex serial interface between the host
93 processor and a peripheral, such as a display or a framebuffer chip.
94
95 See http://www.mipi.org/ for DSI specifications.
96
97config OMAP2_DSS_MIN_FCK_PER_PCK
98 int "Minimum FCK/PCK ratio (for scaling)"
99 range 0 32
100 default 0
101 help
102 This can be used to adjust the minimum FCK/PCK ratio.
103
104 With this you can make sure that DISPC FCK is at least
105 n x PCK. Video plane scaling requires higher FCK than
106 normally.
107
108 If this is set to 0, there's no extra constraint on the
109 DISPC FCK. However, the FCK will at minimum be
110 2xPCK (if active matrix) or 3xPCK (if passive matrix).
111
112 Max FCK is 173MHz, so this doesn't work if your PCK
113 is very high.
114
115config OMAP2_DSS_SLEEP_AFTER_VENC_RESET
116 bool "Sleep 20ms after VENC reset"
117 default y
118 help
119 There is a 20ms sleep after VENC reset which seemed to fix the
120 reset. The reason for the bug is unclear, and it's also unclear
121 on what platforms this happens.
122
123 This option enables the sleep, and is enabled by default. You can
124 disable the sleep if it doesn't cause problems on your platform.
125
126endif