[PATCH 1/2] dt-bindings: trivial-devices: add atmel,atecc608a

[PATCH 1/2] dt-bindings: trivial-devices: add atmel,atecc608a

[Thorsten Blum]

Add an entry for ATECC608A.

Signed-off-by: Thorsten Blum <blum@kernel.org>
---
 Documentation/devicetree/bindings/trivial-devices.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
index 2de8eb09cb7d..3b7876c5a45d 100644
--- a/Documentation/devicetree/bindings/trivial-devices.yaml
+++ b/Documentation/devicetree/bindings/trivial-devices.yaml
@@ -69,6 +69,8 @@ properties:
           - asteralabs,pt5161l
             # ATECC508A - i2c h/w elliptic curve crypto module
           - atmel,atecc508a
+            # ATECC608A - i2c h/w elliptic curve crypto module
+          - atmel,atecc608a
             # ATECC608B - i2c h/w elliptic curve crypto module
           - atmel,atecc608b
             # ATSHA204 - i2c h/w symmetric crypto module

[PATCH 2/2] crypto: atmel-ecc - add support for atecc608a

[Thorsten Blum]

The driver already supports the ATECC508A and ATECC608B and uses only
commands shared by these devices.

Microchip documents the ATECC608B as a backwards-compatible, functional
drop-in replacement for the ATECC608A, with the same device structure
and command interface [1]. Therefore, add support for the ATECC608A.

ATECC608A hardware was not available for testing.

Signed-off-by: Thorsten Blum <blum@kernel.org>
Link: https://ww1.microchip.com/downloads/en/Appnotes/Migrating-from-the-ATECC608A-to-the-ATECC608B-DS40002237A.pdf [1]
---
 drivers/crypto/atmel-ecc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/crypto/atmel-ecc.c b/drivers/crypto/atmel-ecc.c
index 075f38a67935..0904bb47fd0a 100644
--- a/drivers/crypto/atmel-ecc.c
+++ b/drivers/crypto/atmel-ecc.c
@@ -348,6 +348,7 @@ static void atmel_ecc_remove(struct i2c_client *client)
 
 static const struct of_device_id atmel_ecc_dt_ids[] = {
 	{ .compatible = "atmel,atecc508a", },
+	{ .compatible = "atmel,atecc608a", },
 	{ .compatible = "atmel,atecc608b", },
 	{ }
 };
@@ -355,6 +356,7 @@ MODULE_DEVICE_TABLE(of, atmel_ecc_dt_ids);
 
 static const struct i2c_device_id atmel_ecc_id[] = {
 	{ .name = "atecc508a" },
+	{ .name = "atecc608a" },
 	{ .name = "atecc608b" },
 	{ }
 };

Re: [PATCH 1/2] dt-bindings: trivial-devices: add atmel,atecc608a

[Conor Dooley]

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Acked-by: Conor Dooley <conor.dooley@microchip.com>
pw-bot: not-applicable

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