1# SPDX-License-Identifier: GPL-2.0-only 2config DRM_OMAP 3 tristate "OMAP DRM" 4 depends on MMU 5 depends on DRM && OF 6 depends on ARCH_OMAP2PLUS || (COMPILE_TEST && PAGE_SIZE_LESS_THAN_64KB) 7 select DRM_CLIENT_SELECTION 8 select DRM_KMS_HELPER 9 select DRM_DISPLAY_HELPER 10 select DRM_BRIDGE_CONNECTOR 11 select FB_DMAMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION 12 select VIDEOMODE_HELPERS 13 select HDMI 14 default n 15 help 16 DRM display driver for OMAP2/3/4 based boards. 17 18if DRM_OMAP 19 20config OMAP2_DSS_DEBUG 21 bool "Debug support" 22 default n 23 help 24 This enables printing of debug messages. Alternatively, debug messages 25 can also be enabled by setting CONFIG_DYNAMIC_DEBUG and then setting 26 appropriate flags in <debugfs>/dynamic_debug/control. 27 28config OMAP2_DSS_DEBUGFS 29 bool "Debugfs filesystem support" 30 depends on DEBUG_FS 31 default n 32 help 33 This enables debugfs for OMAPDSS at <debugfs>/omapdss. This enables 34 querying about clock configuration and register configuration of dss, 35 dispc, dsi, hdmi and rfbi. 36 37config OMAP2_DSS_COLLECT_IRQ_STATS 38 bool "Collect DSS IRQ statistics" 39 depends on OMAP2_DSS_DEBUGFS 40 default n 41 help 42 Collect DSS IRQ statistics, printable via debugfs. 43 44 The statistics can be found from 45 <debugfs>/omapdss/dispc_irq for DISPC interrupts, and 46 <debugfs>/omapdss/dsi_irq for DSI interrupts. 47 48config OMAP2_DSS_DPI 49 bool "DPI support" 50 default y 51 help 52 DPI Interface. This is the Parallel Display Interface. 53 54config OMAP2_DSS_VENC 55 bool "VENC support" 56 default y 57 help 58 OMAP Video Encoder support for S-Video and composite TV-out. 59 60config OMAP2_DSS_HDMI_COMMON 61 bool 62 63config OMAP4_DSS_HDMI 64 bool "HDMI support for OMAP4" 65 default y 66 select OMAP2_DSS_HDMI_COMMON 67 help 68 HDMI support for OMAP4 based SoCs. 69 70config OMAP4_DSS_HDMI_CEC 71 bool "Enable HDMI CEC support for OMAP4" 72 depends on OMAP4_DSS_HDMI 73 select CEC_CORE 74 default y 75 help 76 When selected the HDMI transmitter will support the CEC feature. 77 78config OMAP5_DSS_HDMI 79 bool "HDMI support for OMAP5" 80 default n 81 select OMAP2_DSS_HDMI_COMMON 82 help 83 HDMI Interface for OMAP5 and similar cores. This adds the High 84 Definition Multimedia Interface. See http://www.hdmi.org/ for HDMI 85 specification. 86 87config OMAP2_DSS_SDI 88 bool "SDI support" 89 default n 90 help 91 SDI (Serial Display Interface) support. 92 93 SDI is a high speed one-way display serial bus between the host 94 processor and a display. 95 96config OMAP2_DSS_DSI 97 bool "DSI support" 98 default n 99 select DRM_MIPI_DSI 100 help 101 MIPI DSI (Display Serial Interface) support. 102 103 DSI is a high speed half-duplex serial interface between the host 104 processor and a peripheral, such as a display or a framebuffer chip. 105 106 See http://www.mipi.org/ for DSI specifications. 107 108config OMAP2_DSS_MIN_FCK_PER_PCK 109 int "Minimum FCK/PCK ratio (for scaling)" 110 range 0 32 111 default 0 112 help 113 This can be used to adjust the minimum FCK/PCK ratio. 114 115 With this you can make sure that DISPC FCK is at least 116 n x PCK. Video plane scaling requires higher FCK than 117 normally. 118 119 If this is set to 0, there's no extra constraint on the 120 DISPC FCK. However, the FCK will at minimum be 121 2xPCK (if active matrix) or 3xPCK (if passive matrix). 122 123 Max FCK is 173MHz, so this doesn't work if your PCK 124 is very high. 125 126config OMAP2_DSS_SLEEP_AFTER_VENC_RESET 127 bool "Sleep 20ms after VENC reset" 128 default y 129 help 130 There is a 20ms sleep after VENC reset which seemed to fix the 131 reset. The reason for the bug is unclear, and it's also unclear 132 on what platforms this happens. 133 134 This option enables the sleep, and is enabled by default. You can 135 disable the sleep if it doesn't cause problems on your platform. 136 137endif 138