1 # SPDX-License-Identifier: GPL-2.0 2 config FB_OMAP2_DSS_INIT 3 bool 4 5 config FB_OMAP2_DSS 6 tristate 7 select VIDEOMODE_HELPERS 8 select FB_OMAP2_DSS_INIT 9 select HDMI 10 11 config FB_OMAP2_DSS_DEBUG 12 bool "Debug support" 13 help 14 This enables printing of debug messages. Alternatively, debug messages 15 can also be enabled by setting CONFIG_DYNAMIC_DEBUG and then setting 16 appropriate flags in <debugfs>/dynamic_debug/control. 17 18 config FB_OMAP2_DSS_DEBUGFS 19 bool "Debugfs filesystem support" 20 depends on DEBUG_FS 21 help 22 This enables debugfs for OMAPDSS at <debugfs>/omapdss. This enables 23 querying about clock configuration and register configuration of dss, 24 dispc, dsi, hdmi and rfbi. 25 26 config FB_OMAP2_DSS_COLLECT_IRQ_STATS 27 bool "Collect DSS IRQ statistics" 28 depends on FB_OMAP2_DSS_DEBUGFS 29 help 30 Collect DSS IRQ statistics, printable via debugfs. 31 32 The statistics can be found from 33 <debugfs>/omapdss/dispc_irq for DISPC interrupts, and 34 <debugfs>/omapdss/dsi_irq for DSI interrupts. 35 36 config FB_OMAP2_DSS_DPI 37 bool "DPI support" 38 default y 39 help 40 DPI Interface. This is the Parallel Display Interface. 41 42 config FB_OMAP2_DSS_VENC 43 bool "VENC support" 44 default y 45 help 46 OMAP Video Encoder support for S-Video and composite TV-out. 47 48 config FB_OMAP2_DSS_HDMI_COMMON 49 bool 50 51 config FB_OMAP4_DSS_HDMI 52 bool "HDMI support for OMAP4" 53 default y 54 select FB_OMAP2_DSS_HDMI_COMMON 55 help 56 HDMI support for OMAP4 based SoCs. 57 58 config FB_OMAP5_DSS_HDMI 59 bool "HDMI support for OMAP5" 60 select FB_OMAP2_DSS_HDMI_COMMON 61 help 62 HDMI Interface for OMAP5 and similar cores. This adds the High 63 Definition Multimedia Interface. See https://www.hdmi.org/ for HDMI 64 specification. 65 66 config FB_OMAP2_DSS_SDI 67 bool "SDI support" 68 help 69 SDI (Serial Display Interface) support. 70 71 SDI is a high speed one-way display serial bus between the host 72 processor and a display. 73 74 config FB_OMAP2_DSS_DSI 75 bool "DSI support" 76 help 77 MIPI DSI (Display Serial Interface) support. 78 79 DSI is a high speed half-duplex serial interface between the host 80 processor and a peripheral, such as a display or a framebuffer chip. 81 82 See https://www.mipi.org/ for DSI specifications. 83 84 config FB_OMAP2_DSS_MIN_FCK_PER_PCK 85 int "Minimum FCK/PCK ratio (for scaling)" 86 range 0 32 87 default 0 88 help 89 This can be used to adjust the minimum FCK/PCK ratio. 90 91 With this you can make sure that DISPC FCK is at least 92 n x PCK. Video plane scaling requires higher FCK than 93 normally. 94 95 If this is set to 0, there's no extra constraint on the 96 DISPC FCK. However, the FCK will at minimum be 97 2xPCK (if active matrix) or 3xPCK (if passive matrix). 98 99 Max FCK is 173MHz, so this doesn't work if your PCK 100 is very high. 101 102 config FB_OMAP2_DSS_SLEEP_AFTER_VENC_RESET 103 bool "Sleep 20ms after VENC reset" 104 default y 105 help 106 There is a 20ms sleep after VENC reset which seemed to fix the 107 reset. The reason for the bug is unclear, and it's also unclear 108 on what platforms this happens. 109 110 This option enables the sleep, and is enabled by default. You can 111 disable the sleep if it doesn't cause problems on your platform. 112