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authorLinus Torvalds <torvalds@linux-foundation.org>2015-04-22 09:09:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-22 09:09:46 -0700
commit5c73cc4b6c83e88863a5de869cc5df3b913aef4a (patch)
treeb7b573b58d31206c58bdee16c870d57d797ea1a6 /Documentation/devicetree/bindings/serial
parentMerge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc (diff)
parentARM: dts: alpine: add internal pci (diff)
downloadlinux-dev-5c73cc4b6c83e88863a5de869cc5df3b913aef4a.tar.xz
linux-dev-5c73cc4b6c83e88863a5de869cc5df3b913aef4a.zip
Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM DT updates from Olof Johansson: "As always, this tends to be one of our bigger branches. There are lots of updates this release, but not that many jumps out as something that needs more detailed coverage. Some of the highlights are: - DTs for the new Annapurna Labs Alpine platform - more graphics DT pieces falling into place on Exynos, bridges, clocks. - plenty of DT updates for Qualcomm platforms for various IP blocks - some churn on Tegra due to switch-over to tool-generated pinctrl data - misc fixes and updates for Atmel at91 platforms - various DT updates to add IP block support on Broadcom's Cygnus platforms - more updates for Renesas platforms as DT support is added for various IP blocks (IPMMU, display, audio, etc)" * tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (231 commits) ARM: dts: alpine: add internal pci Revert "ARM: dts: mt8135: Add pinctrl/GPIO/EINT node for mt8135." ARM: mvebu: use 0xf1000000 as internal registers on Armada 370 DB ARM: dts: qcom: Add idle state device nodes for 8064 ARM: dts: qcom: Add idle states device nodes for 8084 ARM: dts: qcom: Add idle states device nodes for 8974/8074 ARM: dts: qcom: Update power-controller device node for 8064 Krait CPUs ARM: dts: qcom: Add power-controller device node for 8084 Krait CPUs ARM: dts: qcom: Add power-controller device node for 8074 Krait CPUs devicetree: bindings: Document qcom,idle-states devicetree: bindings: Update qcom,saw2 node bindings dt-bindings: Add #defines for MSM8916 clocks and resets arm: dts: qcom: Add LPASS Audio HW to IPQ8064 device tree arm: dts: qcom: Add APQ8084 chipset SPMI PMIC's nodes arm: dts: qcom: Add 8x74 chipset SPMI PMIC's nodes arm: dts: qcom: Add SPMI PMIC Arbiter nodes for APQ8084 and MSM8974 arm: dts: qcom: Add LCC nodes arm: dts: qcom: Add TCSR support for MSM8960 arm: dts: qcom: Add TCSR support for MSM8660 arm: dts: qcom: Add TCSR support for IPQ8064 ...
Diffstat (limited to 'Documentation/devicetree/bindings/serial')
-rw-r--r--Documentation/devicetree/bindings/serial/omap_serial.txt20
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/serial/omap_serial.txt b/Documentation/devicetree/bindings/serial/omap_serial.txt
index 342eedd10050..54c2a155c783 100644
--- a/Documentation/devicetree/bindings/serial/omap_serial.txt
+++ b/Documentation/devicetree/bindings/serial/omap_serial.txt
@@ -4,7 +4,27 @@ Required properties:
- compatible : should be "ti,omap2-uart" for OMAP2 controllers
- compatible : should be "ti,omap3-uart" for OMAP3 controllers
- compatible : should be "ti,omap4-uart" for OMAP4 controllers
+- reg : address and length of the register space
+- interrupts or interrupts-extended : Should contain the uart interrupt
+ specifier or both the interrupt
+ controller phandle and interrupt
+ specifier.
- ti,hwmods : Must be "uart<n>", n being the instance number (1-based)
Optional properties:
- clock-frequency : frequency of the clock input to the UART
+- dmas : DMA specifier, consisting of a phandle to the DMA controller
+ node and a DMA channel number.
+- dma-names : "rx" for receive channel, "tx" for transmit channel.
+
+Example:
+
+ uart4: serial@49042000 {
+ compatible = "ti,omap3-uart";
+ reg = <0x49042000 0x400>;
+ interrupts = <80>;
+ dmas = <&sdma 81 &sdma 82>;
+ dma-names = "tx", "rx";
+ ti,hwmods = "uart4";
+ clock-frequency = <48000000>;
+ };