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Small update to SPI example overlays

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zador-blood-stained
2017-10-26 13:40:13 +03:00
parent 50e4de537c
commit 157e72ee64
2 changed files with 4 additions and 3 deletions
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6
examples/README.md
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@@ -61,7 +61,7 @@ Compared to the other ones in this repository these are "standalone" - no fixup
#### spi-ads7846.dts
- overlay for an ADS7846 touch screen connected to the SPI0 controller on H3 based board
- bindings documentation: [ads7846.txt](https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/tree/Documentation/devicetree/bindings/input/touchscreen/ads7846.txt)
- requires activating the SPI bus device is connected to by a kernel provided overlays (i.e. `overlays=spi0`)
- may require activating the SPI bus device is connected to by a kernel provided overlays (i.e. `overlays=spi0`)
- may require changing the `compatible` property value even though currently it's not required
- may require adding wake GPIO
- may require changing the interrupt GPIO specifier
@@ -70,7 +70,7 @@ Compared to the other ones in this repository these are "standalone" - no fixup
### spi-enc28j60
- overlays for a ENC28J60 Ethernet controller connected to the SPI bus
- bindings documentation: [microchip,enc28j60.txt](https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/tree/Documentation/devicetree/bindings/net/microchip,enc28j60.txt)
- requires activating the SPI bus device is connected to by a kernel provided overlays (i.e. `overlays=spi0`)
- may require activating the SPI bus device is connected to by a kernel provided overlays (i.e. `overlays=spi0`)
- may require changing the interrupt GPIO specifier
- using external pull-up resistor on the interrupt line is highly recommended if the module doesn't have one
@@ -78,7 +78,7 @@ Compared to the other ones in this repository these are "standalone" - no fixup
### spi-mcp251x
- overlays for a MCP251x CAN controller connected to the SPI bus
- bindings documentation: [microchip,mcp251x.txt](https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/tree/Documentation/devicetree/bindings/net/can/microchip,mcp251x.txt)
- requires activating the SPI bus device is connected to by a kernel provided overlays (i.e. `overlays=spi0`)
- may require activating the SPI bus device is connected to by a kernel provided overlays (i.e. `overlays=spi0`)
- may require changing the `compatible` property value
- may require changing the interrupt GPIO specifier
- may require changing the clock frequency to an actual value of the onboard resonator

1
examples/spi-ads7846.dts
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@@ -19,6 +19,7 @@
__overlay__ {
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
ads7846@0 {
compatible = "ti,ads7846";
reg = <0>; /* Chip Select 0 */