0001 # SPDX-License-Identifier: GPL-2.0
0002 config FB_OMAP2_DSS_INIT
0003 bool
0004
0005 config FB_OMAP2_DSS
0006 tristate
0007 select VIDEOMODE_HELPERS
0008 select FB_OMAP2_DSS_INIT
0009 select HDMI
0010
0011 config FB_OMAP2_DSS_DEBUG
0012 bool "Debug support"
0013 help
0014 This enables printing of debug messages. Alternatively, debug messages
0015 can also be enabled by setting CONFIG_DYNAMIC_DEBUG and then setting
0016 appropriate flags in <debugfs>/dynamic_debug/control.
0017
0018 config FB_OMAP2_DSS_DEBUGFS
0019 bool "Debugfs filesystem support"
0020 depends on DEBUG_FS
0021 help
0022 This enables debugfs for OMAPDSS at <debugfs>/omapdss. This enables
0023 querying about clock configuration and register configuration of dss,
0024 dispc, dsi, hdmi and rfbi.
0025
0026 config FB_OMAP2_DSS_COLLECT_IRQ_STATS
0027 bool "Collect DSS IRQ statistics"
0028 depends on FB_OMAP2_DSS_DEBUGFS
0029 help
0030 Collect DSS IRQ statistics, printable via debugfs.
0031
0032 The statistics can be found from
0033 <debugfs>/omapdss/dispc_irq for DISPC interrupts, and
0034 <debugfs>/omapdss/dsi_irq for DSI interrupts.
0035
0036 config FB_OMAP2_DSS_DPI
0037 bool "DPI support"
0038 default y
0039 help
0040 DPI Interface. This is the Parallel Display Interface.
0041
0042 config FB_OMAP2_DSS_VENC
0043 bool "VENC support"
0044 default y
0045 help
0046 OMAP Video Encoder support for S-Video and composite TV-out.
0047
0048 config FB_OMAP2_DSS_HDMI_COMMON
0049 bool
0050
0051 config FB_OMAP4_DSS_HDMI
0052 bool "HDMI support for OMAP4"
0053 default y
0054 select FB_OMAP2_DSS_HDMI_COMMON
0055 help
0056 HDMI support for OMAP4 based SoCs.
0057
0058 config FB_OMAP5_DSS_HDMI
0059 bool "HDMI support for OMAP5"
0060 select FB_OMAP2_DSS_HDMI_COMMON
0061 help
0062 HDMI Interface for OMAP5 and similar cores. This adds the High
0063 Definition Multimedia Interface. See https://www.hdmi.org/ for HDMI
0064 specification.
0065
0066 config FB_OMAP2_DSS_SDI
0067 bool "SDI support"
0068 help
0069 SDI (Serial Display Interface) support.
0070
0071 SDI is a high speed one-way display serial bus between the host
0072 processor and a display.
0073
0074 config FB_OMAP2_DSS_DSI
0075 bool "DSI support"
0076 help
0077 MIPI DSI (Display Serial Interface) support.
0078
0079 DSI is a high speed half-duplex serial interface between the host
0080 processor and a peripheral, such as a display or a framebuffer chip.
0081
0082 See https://www.mipi.org/ for DSI specifications.
0083
0084 config FB_OMAP2_DSS_MIN_FCK_PER_PCK
0085 int "Minimum FCK/PCK ratio (for scaling)"
0086 range 0 32
0087 default 0
0088 help
0089 This can be used to adjust the minimum FCK/PCK ratio.
0090
0091 With this you can make sure that DISPC FCK is at least
0092 n x PCK. Video plane scaling requires higher FCK than
0093 normally.
0094
0095 If this is set to 0, there's no extra constraint on the
0096 DISPC FCK. However, the FCK will at minimum be
0097 2xPCK (if active matrix) or 3xPCK (if passive matrix).
0098
0099 Max FCK is 173MHz, so this doesn't work if your PCK
0100 is very high.
0101
0102 config FB_OMAP2_DSS_SLEEP_AFTER_VENC_RESET
0103 bool "Sleep 20ms after VENC reset"
0104 default y
0105 help
0106 There is a 20ms sleep after VENC reset which seemed to fix the
0107 reset. The reason for the bug is unclear, and it's also unclear
0108 on what platforms this happens.
0109
0110 This option enables the sleep, and is enabled by default. You can
0111 disable the sleep if it doesn't cause problems on your platform.
