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