From fa048cd1ef5ef86bdd42af0180dfd9d3f7af81e7 Mon Sep 17 00:00:00 2001 From: Pali Rohár Date: Thu, 21 Apr 2022 15:44:57 +0200 Subject: crypto: atmel-sha204a - Add support for ATSHA204 cryptochip MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ATSHA204 is predecessor of ATSHA204A which supports less features and some of them are slightly different. Introduce a new compatible string for ATSHA204 cryptochip "atmel,atsha204". Current version of Linux kernel driver atmel-sha204a.c implements only hw random number generator which is same in both ATSHA204 and ATSHA204A cryptochips. So driver already supports also ATSHA204 hw generator, so just simply extends list of compatible strings. Signed-off-by: Pali Rohár Acked-by: Rob Herring Signed-off-by: Herbert Xu --- Documentation/devicetree/bindings/trivial-devices.yaml | 4 +++- drivers/crypto/atmel-sha204a.c | 2 ++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml index 550a2e5c9e05..98b45773432b 100644 --- a/Documentation/devicetree/bindings/trivial-devices.yaml +++ b/Documentation/devicetree/bindings/trivial-devices.yaml @@ -47,7 +47,9 @@ properties: - at,24c08 # i2c trusted platform module (TPM) - atmel,at97sc3204t - # i2c h/w symmetric crypto module + # ATSHA204 - i2c h/w symmetric crypto module + - atmel,atsha204 + # ATSHA204A - i2c h/w symmetric crypto module - atmel,atsha204a # i2c h/w elliptic curve crypto module - atmel,atecc508a diff --git a/drivers/crypto/atmel-sha204a.c b/drivers/crypto/atmel-sha204a.c index c96c14e7dab1..3a03f4aaf100 100644 --- a/drivers/crypto/atmel-sha204a.c +++ b/drivers/crypto/atmel-sha204a.c @@ -132,12 +132,14 @@ static int atmel_sha204a_remove(struct i2c_client *client) } static const struct of_device_id atmel_sha204a_dt_ids[] = { + { .compatible = "atmel,atsha204", }, { .compatible = "atmel,atsha204a", }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, atmel_sha204a_dt_ids); static const struct i2c_device_id atmel_sha204a_id[] = { + { "atsha204", 0 }, { "atsha204a", 0 }, { /* sentinel */ } }; -- cgit v1.2.3