linux-kernel - [PATCH V3 1/3] crypto: caam: Add support for i.MX8M Mini

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Message-Id: <20191218130616.13860-1-aford173@gmail.com>
Date:   Wed, 18 Dec 2019 07:06:14 -0600
From:   Adam Ford <aford173@...il.com>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     Adam Ford <aford173@...il.com>,
        Iuliana Prodan <iuliana.prodan@....com>,
        Horia Geantă <horia.geanta@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Aymen Sghaier <aymen.sghaier@....com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-crypto@...r.kernel.org
Subject: [PATCH V3 1/3] crypto: caam: Add support for i.MX8M Mini

The i.MX8M Mini uses the same crypto engine as the i.MX8MQ, but
the driver is restricting the check to just the i.MX8MQ.

This patch expands the check for either i.MX8MQ or i.MX8MM.

Signed-off-by: Adam Ford <aford173@...il.com>
Tested-by: Iuliana Prodan <iuliana.prodan@....com>
Reviewed-by: Iuliana Prodan <iuliana.prodan@....com>
Reviewed-by: Horia Geantă <horia.geanta@....com>
---
V3:  No Change
V2:  Expand the check that forces the setting on imx8mq to also be true for imx8mm
     Explictly state imx8mm compatiblity instead of making it generic to all imx8m*
      this is mostly due to lack of other hardware to test

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index d7c3c3805693..c01dda692ecc 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -102,7 +102,8 @@ static inline int run_descriptor_deco0(struct device *ctrldev, u32 *desc,
 	     * Apparently on i.MX8MQ it doesn't matter if virt_en == 1
 	     * and the following steps should be performed regardless
 	     */
-	    of_machine_is_compatible("fsl,imx8mq")) {
+	    of_machine_is_compatible("fsl,imx8mq") ||
+	    of_machine_is_compatible("fsl,imx8mm")) {
 		clrsetbits_32(&ctrl->deco_rsr, 0, DECORSR_JR0);
 
 		while (!(rd_reg32(&ctrl->deco_rsr) & DECORSR_VALID) &&
@@ -509,6 +510,7 @@ static const struct soc_device_attribute caam_imx_soc_table[] = {
 	{ .soc_id = "i.MX6*",  .data = &caam_imx6_data },
 	{ .soc_id = "i.MX7*",  .data = &caam_imx7_data },
 	{ .soc_id = "i.MX8MQ", .data = &caam_imx7_data },
+	{ .soc_id = "i.MX8MM", .data = &caam_imx7_data },
 	{ .family = "Freescale i.MX" },
 	{ /* sentinel */ }
 };
-- 
2.20.1