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Linus Torvalds
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--- | ||
refs/heads/master: 3d26678e8009b03f27674c2f9e5b236c2f627b14 | ||
refs/heads/master: 047f61c5d16d617e1df2deea5c5d5fb2a1b41c95 |
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* SM SM501 | ||
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The SM SM501 is a LCD controller, with proper hardware, it can also | ||
drive DVI monitors. | ||
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Required properties: | ||
- compatible : should be "smi,sm501". | ||
- reg : contain two entries: | ||
- First entry: System Configuration register | ||
- Second entry: IO space (Display Controller register) | ||
- interrupts : SMI interrupt to the cpu should be described here. | ||
- interrupt-parent : the phandle for the interrupt controller that | ||
services interrupts for this device. | ||
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Optional properties: | ||
- mode : select a video mode: | ||
<xres>x<yres>[-<bpp>][@<refresh>] | ||
- edid : verbatim EDID data block describing attached display. | ||
Data from the detailed timing descriptor will be used to | ||
program the display controller. | ||
- little-endian: availiable on big endian systems, to | ||
set different foreign endian. | ||
- big-endian: availiable on little endian systems, to | ||
set different foreign endian. | ||
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Example for MPC5200: | ||
display@1,0 { | ||
compatible = "smi,sm501"; | ||
reg = <1 0x00000000 0x00800000 | ||
1 0x03e00000 0x00200000>; | ||
interrupts = <1 1 3>; | ||
mode = "640x480-32@60"; | ||
edid = [edid-data]; | ||
}; |
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Configuration: | ||
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You can pass the following kernel command line options to sm501 videoframebuffer: | ||
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sm501fb.bpp= SM501 Display driver: | ||
Specifiy bits-per-pixel if not specified by 'mode' | ||
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sm501fb.mode= SM501 Display driver: | ||
Specify resolution as | ||
"<xres>x<yres>[-<bpp>][@<refresh>]" |
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Kernel driver twl4030-madc | ||
========================= | ||
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Supported chips: | ||
* Texas Instruments TWL4030 | ||
Prefix: 'twl4030-madc' | ||
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Authors: | ||
J Keerthy <j-keerthy@ti.com> | ||
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Description | ||
----------- | ||
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The Texas Instruments TWL4030 is a Power Management and Audio Circuit. Among | ||
other things it contains a 10-bit A/D converter MADC. The converter has 16 | ||
channels which can be used in different modes. | ||
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See this table for the meaning of the different channels | ||
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Channel Signal | ||
------------------------------------------ | ||
0 Battery type(BTYPE) | ||
1 BCI: Battery temperature (BTEMP) | ||
2 GP analog input | ||
3 GP analog input | ||
4 GP analog input | ||
5 GP analog input | ||
6 GP analog input | ||
7 GP analog input | ||
8 BCI: VBUS voltage(VBUS) | ||
9 Backup Battery voltage (VBKP) | ||
10 BCI: Battery charger current (ICHG) | ||
11 BCI: Battery charger voltage (VCHG) | ||
12 BCI: Main battery voltage (VBAT) | ||
13 Reserved | ||
14 Reserved | ||
15 VRUSB Supply/Speaker left/Speaker right polarization level | ||
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The Sysfs nodes will represent the voltage in the units of mV, | ||
the temperature channel shows the converted temperature in | ||
degree celcius. The Battery charging current channel represents | ||
battery charging current in mA. |
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