Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1157823
| From | Cyrille Pitchen <cyrille.pitchen@atmel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v5 3/6] i2c: at91: update documentation for DT bindings |
| Date | 2015-06-03 18:30 +0200 |
| Message-ID | <pxjIf-6rK-41@gated-at.bofh.it> (permalink) |
| References | <pxjId-6rK-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
add a new value "atmel,at91sama5d2-i2c" for the "compatible" property.
add a new optional property "atmel,fifo-size" to enable FIFO support when
available.
add missing optional properties "dmas" and "dma-names".
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
---
Documentation/devicetree/bindings/i2c/i2c-at91.txt | 29 ++++++++++++++++++++--
1 file changed, 27 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/i2c/i2c-at91.txt b/Documentation/devicetree/bindings/i2c/i2c-at91.txt
index 388f0a2..7c04fd9 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-at91.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-at91.txt
@@ -2,8 +2,8 @@ I2C for Atmel platforms
Required properties :
- compatible : Must be "atmel,at91rm9200-i2c", "atmel,at91sam9261-i2c",
- "atmel,at91sam9260-i2c", "atmel,at91sam9g20-i2c", "atmel,at91sam9g10-i2c"
- or "atmel,at91sam9x5-i2c"
+ "atmel,at91sam9260-i2c", "atmel,at91sam9g20-i2c", "atmel,at91sam9g10-i2c",
+ "atmel,at91sam9x5-i2c" or "atmel,at91sama5d2-i2c"
- reg: physical base address of the controller and length of memory mapped
region.
- interrupts: interrupt number to the cpu.
@@ -13,6 +13,9 @@ Required properties :
Optional properties:
- clock-frequency: Desired I2C bus frequency in Hz, otherwise defaults to 100000
+- dmas: A list of two dma specifiers, one for each entry in dma-names.
+- dma-names: should contain "tx" and "rx".
+- atmel,fifo-size: size of the RX and TX FIFOs, if available.
- Child nodes conforming to i2c bus binding
Examples :
@@ -32,3 +35,25 @@ i2c0: i2c@fff84000 {
pagesize = <128>;
}
}
+
+i2c0: i2c@f8034600 {
+ compatible = "atmel,at91sama5d2-i2c";
+ reg = <0xf8034600 0x100>;
+ interrupts = <19 IRQ_TYPE_LEVEL_HIGH 7>;
+ dmas = <&dma0
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1))
+ AT91_XDMAC_DT_PERID(11)>,
+ <&dma0
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1))
+ AT91_XDMAC_DT_PERID(12)>;
+ dma-names = "tx", "rx";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&flx0>;
+ atmel,fifo-size = <32>;
+
+ wm8731: wm8731@1a {
+ compatible = "wm8731";
+ reg = <0x1a>;
+ };
+};
--
1.8.2.2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread
[PATCH v5 0/6] i2c: at91: add support to FIFOs and alternative command Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-06-03 18:30 +0200 [PATCH v5 5/6] i2c: at91: print hardware version Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-06-03 18:30 +0200 [PATCH v5 3/6] i2c: at91: update documentation for DT bindings Cyrille Pitchen <cyrille.pitchen@atmel.com> - 2015-06-03 18:30 +0200
csiph-web