| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | # SPDX-License-Identifier: GPL-2.0-only |
| 2 | config OMAP2_DSS_INIT |
| 3 | bool |
| 4 | |
| 5 | config OMAP_DSS_BASE |
| 6 | tristate |
| 7 | |
| 8 | menuconfig OMAP2_DSS |
| 9 | tristate "OMAP2+ Display Subsystem support" |
| 10 | select OMAP_DSS_BASE |
| 11 | select VIDEOMODE_HELPERS |
| 12 | select OMAP2_DSS_INIT |
| 13 | select HDMI |
| 14 | help |
| 15 | OMAP2+ Display Subsystem support. |
| 16 | |
| 17 | if OMAP2_DSS |
| 18 | |
| 19 | config OMAP2_DSS_DEBUG |
| 20 | bool "Debug support" |
| 21 | default n |
| 22 | help |
| 23 | This enables printing of debug messages. Alternatively, debug messages |
| 24 | can also be enabled by setting CONFIG_DYNAMIC_DEBUG and then setting |
| 25 | appropriate flags in <debugfs>/dynamic_debug/control. |
| 26 | |
| 27 | config OMAP2_DSS_DEBUGFS |
| 28 | bool "Debugfs filesystem support" |
| 29 | depends on DEBUG_FS |
| 30 | default n |
| 31 | help |
| 32 | This enables debugfs for OMAPDSS at <debugfs>/omapdss. This enables |
| 33 | querying about clock configuration and register configuration of dss, |
| 34 | dispc, dsi, hdmi and rfbi. |
| 35 | |
| 36 | config OMAP2_DSS_COLLECT_IRQ_STATS |
| 37 | bool "Collect DSS IRQ statistics" |
| 38 | depends on OMAP2_DSS_DEBUGFS |
| 39 | default n |
| 40 | help |
| 41 | Collect DSS IRQ statistics, printable via debugfs. |
| 42 | |
| 43 | The statistics can be found from |
| 44 | <debugfs>/omapdss/dispc_irq for DISPC interrupts, and |
| 45 | <debugfs>/omapdss/dsi_irq for DSI interrupts. |
| 46 | |
| 47 | config OMAP2_DSS_DPI |
| 48 | bool "DPI support" |
| 49 | default y |
| 50 | help |
| 51 | DPI Interface. This is the Parallel Display Interface. |
| 52 | |
| 53 | config OMAP2_DSS_VENC |
| 54 | bool "VENC support" |
| 55 | default y |
| 56 | help |
| 57 | OMAP Video Encoder support for S-Video and composite TV-out. |
| 58 | |
| 59 | config OMAP2_DSS_HDMI_COMMON |
| 60 | bool |
| 61 | |
| 62 | config OMAP4_DSS_HDMI |
| 63 | bool "HDMI support for OMAP4" |
| 64 | default y |
| 65 | select OMAP2_DSS_HDMI_COMMON |
| 66 | help |
| 67 | HDMI support for OMAP4 based SoCs. |
| 68 | |
| 69 | config OMAP4_DSS_HDMI_CEC |
| 70 | bool "Enable HDMI CEC support for OMAP4" |
| 71 | depends on OMAP4_DSS_HDMI |
| 72 | select CEC_CORE |
| 73 | default y |
| 74 | ---help--- |
| 75 | When selected the HDMI transmitter will support the CEC feature. |
| 76 | |
| 77 | config OMAP5_DSS_HDMI |
| 78 | bool "HDMI support for OMAP5" |
| 79 | default n |
| 80 | select OMAP2_DSS_HDMI_COMMON |
| 81 | help |
| 82 | HDMI Interface for OMAP5 and similar cores. This adds the High |
| 83 | Definition Multimedia Interface. See http://www.hdmi.org/ for HDMI |
| 84 | specification. |
| 85 | |
| 86 | config OMAP2_DSS_SDI |
| 87 | bool "SDI support" |
| 88 | default n |
| 89 | help |
| 90 | SDI (Serial Display Interface) support. |
| 91 | |
| 92 | SDI is a high speed one-way display serial bus between the host |
| 93 | processor and a display. |
| 94 | |
| 95 | config OMAP2_DSS_DSI |
| 96 | bool "DSI support" |
| 97 | default n |
| 98 | help |
| 99 | MIPI DSI (Display Serial Interface) support. |
| 100 | |
| 101 | DSI is a high speed half-duplex serial interface between the host |
| 102 | processor and a peripheral, such as a display or a framebuffer chip. |
| 103 | |
| 104 | See http://www.mipi.org/ for DSI specifications. |
| 105 | |
| 106 | config OMAP2_DSS_MIN_FCK_PER_PCK |
| 107 | int "Minimum FCK/PCK ratio (for scaling)" |
| 108 | range 0 32 |
| 109 | default 0 |
| 110 | help |
| 111 | This can be used to adjust the minimum FCK/PCK ratio. |
| 112 | |
| 113 | With this you can make sure that DISPC FCK is at least |
| 114 | n x PCK. Video plane scaling requires higher FCK than |
| 115 | normally. |
| 116 | |
| 117 | If this is set to 0, there's no extra constraint on the |
| 118 | DISPC FCK. However, the FCK will at minimum be |
| 119 | 2xPCK (if active matrix) or 3xPCK (if passive matrix). |
| 120 | |
| 121 | Max FCK is 173MHz, so this doesn't work if your PCK |
| 122 | is very high. |
| 123 | |
| 124 | config OMAP2_DSS_SLEEP_AFTER_VENC_RESET |
| 125 | bool "Sleep 20ms after VENC reset" |
| 126 | default y |
| 127 | help |
| 128 | There is a 20ms sleep after VENC reset which seemed to fix the |
| 129 | reset. The reason for the bug is unclear, and it's also unclear |
| 130 | on what platforms this happens. |
| 131 | |
| 132 | This option enables the sleep, and is enabled by default. You can |
| 133 | disable the sleep if it doesn't cause problems on your platform. |
| 134 | |
| 135 | endif |