linux-kernel - [PATCH 16/16] nvmem: sfp: Add support for TA 2.1 devices

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Message-Id: <20220429162701.2222-17-srinivas.kandagatla@linaro.org>
Date:   Fri, 29 Apr 2022 17:27:01 +0100
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     gregkh@...uxfoundation.org
Cc:     linux-kernel@...r.kernel.org,
        Sean Anderson <sean.anderson@...o.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH 16/16] nvmem: sfp: Add support for TA 2.1 devices

From: Sean Anderson <sean.anderson@...o.com>

This adds support for Trust Architecture (TA) 2.1 devices to the SFP driver.
There are few differences between TA 2.1 and TA 3.0, especially for
read-only support, so just re-use the existing data.

Signed-off-by: Sean Anderson <sean.anderson@...o.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 drivers/nvmem/layerscape-sfp.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/nvmem/layerscape-sfp.c b/drivers/nvmem/layerscape-sfp.c
index 59083f048921..e2b424561949 100644
--- a/drivers/nvmem/layerscape-sfp.c
+++ b/drivers/nvmem/layerscape-sfp.c
@@ -78,12 +78,18 @@ static int layerscape_sfp_probe(struct platform_device *pdev)
 	return PTR_ERR_OR_ZERO(nvmem);
 }
 
+static const struct layerscape_sfp_data ls1021a_data = {
+	.size = 0x88,
+	.endian = REGMAP_ENDIAN_BIG,
+};
+
 static const struct layerscape_sfp_data ls1028a_data = {
 	.size = 0x88,
 	.endian = REGMAP_ENDIAN_LITTLE,
 };
 
 static const struct of_device_id layerscape_sfp_dt_ids[] = {
+	{ .compatible = "fsl,ls1021a-sfp", .data = &ls1021a_data },
 	{ .compatible = "fsl,ls1028a-sfp", .data = &ls1028a_data },
 	{},
 };
-- 
2.21.0