From 44c75c9e3d08b430a9f002a087f2da255909b8ff Mon Sep 17 00:00:00 2001 From: Tudor Ambarus Date: Fri, 11 Feb 2022 11:39:22 +0200 Subject: dt-bindings: crypto: Convert Atmel SHA to yaml Convert Atmel SHA documentation to yaml format. With the conversion the clock and clock-names properties are made mandatory. The driver returns -EINVAL if "sha_clk" is not found, reflect that in the bindings and make the clock and clock-names properties mandatory. Update the example to better describe how one should define the dt node. Signed-off-by: Tudor Ambarus Reviewed-by: Krzysztof Kozlowski Signed-off-by: Rob Herring Link: https://lore.kernel.org/r/20220211093922.456634-4-tudor.ambarus@microchip.com --- .../bindings/crypto/atmel,at91sam9g46-sha.yaml | 60 ++++++++++++++++++++++ .../devicetree/bindings/crypto/atmel-crypto.txt | 25 --------- 2 files changed, 60 insertions(+), 25 deletions(-) create mode 100644 Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-sha.yaml delete mode 100644 Documentation/devicetree/bindings/crypto/atmel-crypto.txt (limited to 'Documentation/devicetree/bindings/crypto') diff --git a/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-sha.yaml b/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-sha.yaml new file mode 100644 index 000000000000..5163c51b4547 --- /dev/null +++ b/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-sha.yaml @@ -0,0 +1,60 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/crypto/atmel,at91sam9g46-sha.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Atmel Secure Hash Algorithm (SHA) HW cryptographic accelerator + +maintainers: + - Tudor Ambarus + +properties: + compatible: + const: atmel,at91sam9g46-sha + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + const: sha_clk + + dmas: + maxItems: 1 + description: TX DMA Channel + + dma-names: + const: tx + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + #include + #include + #include + #include + + sha: crypto@e1814000 { + compatible = "atmel,at91sam9g46-sha"; + reg = <0xe1814000 0x100>; + interrupts = ; + clocks = <&pmc PMC_TYPE_PERIPHERAL 83>; + clock-names = "sha_clk"; + dmas = <&dma0 AT91_XDMAC_DT_PERID(48)>; + dma-names = "tx"; + }; diff --git a/Documentation/devicetree/bindings/crypto/atmel-crypto.txt b/Documentation/devicetree/bindings/crypto/atmel-crypto.txt deleted file mode 100644 index 5c6541cfcc4a..000000000000 --- a/Documentation/devicetree/bindings/crypto/atmel-crypto.txt +++ /dev/null @@ -1,25 +0,0 @@ -* Atmel HW cryptographic accelerators - -These are the HW cryptographic accelerators found on some Atmel products. - -* Secure Hash Algorithm (SHA) - -Required properties: -- compatible : Should be "atmel,at91sam9g46-sha". -- reg: Should contain SHA registers location and length. -- interrupts: Should contain the IRQ line for the SHA. - -Optional properties: -- dmas: One DMA specifiers as described in - atmel-dma.txt and dma.txt files. -- dma-names: Contains one identifier string for each DMA specifier - in the dmas property. Only one "tx" string needed. - -Example: -sha@f8034000 { - compatible = "atmel,at91sam9g46-sha"; - reg = <0xf8034000 0x100>; - interrupts = <42 4 0>; - dmas = <&dma1 2 17>; - dma-names = "tx"; -}; -- cgit