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dt-bindings: i2c: renesas,riic: Add interrupt-names

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The Renesas RZ/A and RZ/G2L I2C Bus Interface has no less than 8
interrupts.  Hence document the "interrupt-names" property, to make it
easier to review the interrupt mappings in DTS files.

Note that this property cannot be made required yet, as the RIIC nodes
in all DTS files lack the property.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/a81d0e14e395f297666e8c3a8ce3e292d2606a65.1626267422.git.geert+renesas@glider.be
This commit is contained in:
Geert Uytterhoeven
2021-07-14 15:20:00 +02:00
parent 9ea0c7b3c2
commit 112dfa5ca1
1 changed files with 21 additions and 8 deletions
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29
Documentation/devicetree/bindings/i2c/renesas,riic.yaml
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@@ -27,14 +27,25 @@ properties:
interrupts:
items:
- description: Transmit End Interrupt (TEI)
- description: Receive Data Full Interrupt (RI)
- description: Transmit Data Empty Interrupt (TI)
- description: Stop Condition Detection Interrupt (SPI)
- description: Start Condition Detection Interrupt (STI)
- description: NACK Reception Interrupt (NAKI)
- description: Arbitration-Lost Interrupt (ALI)
- description: Timeout Interrupt (TMOI)
- description: Transmit End Interrupt
- description: Receive Data Full Interrupt
- description: Transmit Data Empty Interrupt
- description: Stop Condition Detection Interrupt
- description: Start Condition Detection Interrupt
- description: NACK Reception Interrupt
- description: Arbitration-Lost Interrupt
- description: Timeout Interrupt
interrupt-names:
items:
- const: tei
- const: ri
- const: ti
- const: spi
- const: sti
- const: naki
- const: ali
- const: tmoi
clock-frequency:
description:
@@ -85,6 +96,8 @@ examples:
<GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "tei", "ri", "ti", "spi", "sti", "naki", "ali",
"tmoi";
clocks = <&mstp9_clks R7S72100_CLK_I2C0>;
clock-frequency = <100000>;
power-domains = <&cpg_clocks>;