1 # SPDX-License-Identifier: GPL-2.0
2 config FB_OMAP2_DSS_INIT
7 select VIDEOMODE_HELPERS
8 select FB_OMAP2_DSS_INIT
11 config FB_OMAP2_DSS_DEBUG
15 This enables printing of debug messages. Alternatively, debug messages
16 can also be enabled by setting CONFIG_DYNAMIC_DEBUG and then setting
17 appropriate flags in <debugfs>/dynamic_debug/control.
19 config FB_OMAP2_DSS_DEBUGFS
20 bool "Debugfs filesystem support"
24 This enables debugfs for OMAPDSS at <debugfs>/omapdss. This enables
25 querying about clock configuration and register configuration of dss,
26 dispc, dsi, hdmi and rfbi.
28 config FB_OMAP2_DSS_COLLECT_IRQ_STATS
29 bool "Collect DSS IRQ statistics"
30 depends on FB_OMAP2_DSS_DEBUGFS
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.
39 config FB_OMAP2_DSS_DPI
43 DPI Interface. This is the Parallel Display Interface.
45 config FB_OMAP2_DSS_RFBI
50 MIPI DBI support (RFBI, Remote Framebuffer Interface, in Texas
51 Instrument's terminology).
53 DBI is a bus between the host processor and a peripheral,
54 such as a display or a framebuffer chip.
56 See http://www.mipi.org/ for DBI specifications.
58 config FB_OMAP2_DSS_VENC
62 OMAP Video Encoder support for S-Video and composite TV-out.
64 config FB_OMAP2_DSS_HDMI_COMMON
67 config FB_OMAP4_DSS_HDMI
68 bool "HDMI support for OMAP4"
70 select FB_OMAP2_DSS_HDMI_COMMON
72 HDMI support for OMAP4 based SoCs.
74 config FB_OMAP5_DSS_HDMI
75 bool "HDMI support for OMAP5"
77 select FB_OMAP2_DSS_HDMI_COMMON
79 HDMI Interface for OMAP5 and similar cores. This adds the High
80 Definition Multimedia Interface. See http://www.hdmi.org/ for HDMI
83 config FB_OMAP2_DSS_SDI
87 SDI (Serial Display Interface) support.
89 SDI is a high speed one-way display serial bus between the host
90 processor and a display.
92 config FB_OMAP2_DSS_DSI
96 MIPI DSI (Display Serial Interface) support.
98 DSI is a high speed half-duplex serial interface between the host
99 processor and a peripheral, such as a display or a framebuffer chip.
101 See http://www.mipi.org/ for DSI specifications.
103 config FB_OMAP2_DSS_MIN_FCK_PER_PCK
104 int "Minimum FCK/PCK ratio (for scaling)"
108 This can be used to adjust the minimum FCK/PCK ratio.
110 With this you can make sure that DISPC FCK is at least
111 n x PCK. Video plane scaling requires higher FCK than
114 If this is set to 0, there's no extra constraint on the
115 DISPC FCK. However, the FCK will at minimum be
116 2xPCK (if active matrix) or 3xPCK (if passive matrix).
118 Max FCK is 173MHz, so this doesn't work if your PCK
121 config FB_OMAP2_DSS_SLEEP_AFTER_VENC_RESET
122 bool "Sleep 20ms after VENC reset"
125 There is a 20ms sleep after VENC reset which seemed to fix the
126 reset. The reason for the bug is unclear, and it's also unclear
127 on what platforms this happens.
129 This option enables the sleep, and is enabled by default. You can
130 disable the sleep if it doesn't cause problems on your platform.