crypto: tegra-se: Add DT support

Add DT support for SE driver

Bug 1369830

Change-Id: Iebd0a7f58d0ee6eb3ebc7f75f81690bc1ec972c0
Signed-off-by: Shravani Dingari <shravanid@nvidia.com>
Reviewed-on: http://git-master/r/334930
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>

1 files changed, 53 insertions, 33 deletions

diff --git a/drivers/crypto/tegra-se.c b/drivers/crypto/tegra-se.c
index 196450f4dcc8..0488527b9c79 100644
--- a/drivers/crypto/tegra-se.c
+++ b/drivers/crypto/tegra-se.c
@@ -30,6 +30,8 @@
 #include <linux/scatterlist.h>
 #include <linux/dma-mapping.h>
 #include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/mutex.h>
 #include <linux/interrupt.h>
 #include <linux/types.h>
@@ -2555,10 +2557,46 @@ bool isAlgoSupported(struct tegra_se_dev *se_dev, const char *algo)
 	return true;
 }
 
+static struct tegra_se_chipdata tegra_se_chipdata = {
+	.rsa_supported = false,
+	.cprng_supported = true,
+	.drbg_supported = false,
+	.aes_freq = 300000000,
+	.rng_freq = 300000000,
+	.sha1_freq = 300000000,
+	.sha224_freq = 300000000,
+	.sha256_freq = 300000000,
+	.sha384_freq = 300000000,
+	.sha512_freq = 300000000,
+};
+
+static struct tegra_se_chipdata tegra11_se_chipdata = {
+	.rsa_supported = true,
+	.cprng_supported = false,
+	.drbg_supported = true,
+	.aes_freq = 150000000,
+	.rng_freq = 150000000,
+	.sha1_freq = 200000000,
+	.sha224_freq = 250000000,
+	.sha256_freq = 250000000,
+	.sha384_freq = 150000000,
+	.sha512_freq = 150000000,
+	.rsa_freq = 350000000,
+};
+
+static struct of_device_id tegra_se_of_match[] = {
+	{
+		.compatible = "nvidia,tegra124-se",
+		.data = &tegra11_se_chipdata,
+	},
+};
+MODULE_DEVICE_TABLE(of, tegra_se_of_match);
+
 static int tegra_se_probe(struct platform_device *pdev)
 {
 	struct tegra_se_dev *se_dev = NULL;
 	struct resource *res = NULL;
+	const struct of_device_id *match;
 	int err = 0, i = 0, j = 0, k = 0;
 
 	se_dev = kzalloc(sizeof(struct tegra_se_dev), GFP_KERNEL);
@@ -2566,6 +2604,18 @@ static int tegra_se_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "memory allocation failed\n");
 		return -ENOMEM;
 	}
+	if (pdev->dev.of_node) {
+		match = of_match_device(of_match_ptr(tegra_se_of_match),
+				&pdev->dev);
+		if (!match) {
+			dev_err(&pdev->dev, "Error: No device match found\n");
+			return -ENODEV;
+		}
+		se_dev->chipdata = (struct tegra_se_chipdata *)match->data;
+	} else {
+		se_dev->chipdata =
+			(struct tegra_se_chipdata *)pdev->id_entry->driver_data;
+	}
 
 	spin_lock_init(&se_dev->lock);
 	crypto_init_queue(&se_dev->queue, TEGRA_SE_CRYPTO_QUEUE_LENGTH);
@@ -2607,9 +2657,6 @@ static int tegra_se_probe(struct platform_device *pdev)
 		goto err_irq;
 	}
 
-	se_dev->chipdata =
-		(struct tegra_se_chipdata *)pdev->id_entry->driver_data;
-
 	/* Initialize the clock */
 	se_dev->pclk = clk_get(se_dev->dev, "se");
 	if (IS_ERR(se_dev->pclk)) {
@@ -3450,42 +3497,14 @@ static const struct dev_pm_ops tegra_se_dev_pm_ops = {
 };
 #endif
 
-static struct tegra_se_chipdata tegra_se_chipdata = {
-	.rsa_supported = false,
-	.cprng_supported = true,
-	.drbg_supported = false,
-	.aes_freq = 300000000,
-	.rng_freq = 300000000,
-	.sha1_freq = 300000000,
-	.sha224_freq = 300000000,
-	.sha256_freq = 300000000,
-	.sha384_freq = 300000000,
-	.sha512_freq = 300000000,
-};
-
-static struct tegra_se_chipdata tegra11_se_chipdata = {
-	.rsa_supported = true,
-	.cprng_supported = false,
-	.drbg_supported = true,
-	.aes_freq = 150000000,
-	.rng_freq = 150000000,
-	.sha1_freq = 200000000,
-	.sha224_freq = 250000000,
-	.sha256_freq = 250000000,
-	.sha384_freq = 150000000,
-	.sha512_freq = 150000000,
-	.rsa_freq = 350000000,
-
-};
-
 static struct platform_device_id tegra_dev_se_devtype[] = {
 	{
 		.name = "tegra-se",
 		.driver_data = (unsigned long)&tegra_se_chipdata,
 	},
 	{
-			.name = "tegra11-se",
-			.driver_data = (unsigned long)&tegra11_se_chipdata,
+		.name = "tegra11-se",
+		.driver_data = (unsigned long)&tegra11_se_chipdata,
 	},
 	{
 		.name = "tegra12-se",
@@ -3502,6 +3521,7 @@ static struct platform_driver tegra_se_driver = {
 		.owner  = THIS_MODULE,
 #if defined(CONFIG_PM_RUNTIME)
 		.pm = &tegra_se_dev_pm_ops,
+		.of_match_table = of_match_ptr(tegra_se_of_match),
 #endif
 	},
 };