tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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_KMS_HELPER
8 select DRM_DISPLAY_HELPER
9 select DRM_BRIDGE_CONNECTOR
10 select FB_DMAMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION
11 select VIDEOMODE_HELPERS
12 select HDMI
13 default n
14 help
15 DRM display driver for OMAP2/3/4 based boards.
16
17if DRM_OMAP
18
19config 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
27config 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
36config 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
47config OMAP2_DSS_DPI
48 bool "DPI support"
49 default y
50 help
51 DPI Interface. This is the Parallel Display Interface.
52
53config 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
59config OMAP2_DSS_HDMI_COMMON
60 bool
61
62config 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
69config 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
77config 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
86config 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
95config OMAP2_DSS_DSI
96 bool "DSI support"
97 default n
98 select DRM_MIPI_DSI
99 help
100 MIPI DSI (Display Serial Interface) support.
101
102 DSI is a high speed half-duplex serial interface between the host
103 processor and a peripheral, such as a display or a framebuffer chip.
104
105 See http://www.mipi.org/ for DSI specifications.
106
107config OMAP2_DSS_MIN_FCK_PER_PCK
108 int "Minimum FCK/PCK ratio (for scaling)"
109 range 0 32
110 default 0
111 help
112 This can be used to adjust the minimum FCK/PCK ratio.
113
114 With this you can make sure that DISPC FCK is at least
115 n x PCK. Video plane scaling requires higher FCK than
116 normally.
117
118 If this is set to 0, there's no extra constraint on the
119 DISPC FCK. However, the FCK will at minimum be
120 2xPCK (if active matrix) or 3xPCK (if passive matrix).
121
122 Max FCK is 173MHz, so this doesn't work if your PCK
123 is very high.
124
125config OMAP2_DSS_SLEEP_AFTER_VENC_RESET
126 bool "Sleep 20ms after VENC reset"
127 default y
128 help
129 There is a 20ms sleep after VENC reset which seemed to fix the
130 reset. The reason for the bug is unclear, and it's also unclear
131 on what platforms this happens.
132
133 This option enables the sleep, and is enabled by default. You can
134 disable the sleep if it doesn't cause problems on your platform.
135
136endif