crypto: inside-secure - Expand soc data structure

Currently platform data is assigned directly to
version string(instead of struct). To make it more
scalable, we move it to use data struct instead.
This allows customization for individual platforms other
than version string.
Signed-off-by: Peter Harliman Liem <pliem@maxlinear.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/inside-secure/safexcel.c

@@ -410,10 +410,10 @@ static int eip197_load_firmwares(struct safexcel_crypto_priv *priv)
 	int i, j, ret = 0, pe;
 	int ipuesz, ifppsz, minifw = 0;
 
-	if (priv->version == EIP197D_MRVL)
+	if (priv->data->version == EIP197D_MRVL)
 		dir = "eip197d";
-	else if (priv->version == EIP197B_MRVL ||
-		 priv->version == EIP197_DEVBRD)
+	else if (priv->data->version == EIP197B_MRVL ||
+		 priv->data->version == EIP197_DEVBRD)
 		dir = "eip197b";
 	else
 		return -ENODEV;
@@ -423,7 +423,7 @@ static int eip197_load_firmwares(struct safexcel_crypto_priv *priv)
 		snprintf(fw_path, 37, "inside-secure/%s/%s", dir, fw_name[i]);
 		ret = firmware_request_nowarn(&fw[i], fw_path, priv->dev);
 		if (ret) {
-			if (minifw || priv->version != EIP197B_MRVL)
+			if (minifw || priv->data->version != EIP197B_MRVL)
 				goto release_fw;
 
 			/* Fallback to the old firmware location for the
@@ -1597,7 +1597,7 @@ static int safexcel_probe_generic(void *pdev,
 
 	safexcel_configure(priv);
 
-	if (IS_ENABLED(CONFIG_PCI) && priv->version == EIP197_DEVBRD) {
+	if (IS_ENABLED(CONFIG_PCI) && priv->data->version == EIP197_DEVBRD) {
 		/*
 		 * Request MSI vectors for global + 1 per ring -
 		 * or just 1 for older dev images
@@ -1731,7 +1731,7 @@ static int safexcel_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	priv->dev = dev;
-	priv->version = (enum safexcel_eip_version)of_device_get_match_data(dev);
+	priv->data = (struct safexcel_priv_data *)of_device_get_match_data(dev);
 
 	platform_set_drvdata(pdev, priv);
 
@@ -1806,27 +1806,43 @@ static int safexcel_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct safexcel_priv_data eip97ies_mrvl_data = {
+	.version = EIP97IES_MRVL,
+};
+
+static const struct safexcel_priv_data eip197b_mrvl_data = {
+	.version = EIP197B_MRVL,
+};
+
+static const struct safexcel_priv_data eip197d_mrvl_data = {
+	.version = EIP197D_MRVL,
+};
+
+static const struct safexcel_priv_data eip197_devbrd_data = {
+	.version = EIP197_DEVBRD,
+};
+
 static const struct of_device_id safexcel_of_match_table[] = {
 	{
 		.compatible = "inside-secure,safexcel-eip97ies",
-		.data = (void *)EIP97IES_MRVL,
+		.data = &eip97ies_mrvl_data,
 	},
 	{
 		.compatible = "inside-secure,safexcel-eip197b",
-		.data = (void *)EIP197B_MRVL,
+		.data = &eip197b_mrvl_data,
 	},
 	{
 		.compatible = "inside-secure,safexcel-eip197d",
-		.data = (void *)EIP197D_MRVL,
+		.data = &eip197d_mrvl_data,
 	},
 	/* For backward compatibility and intended for generic use */
 	{
 		.compatible = "inside-secure,safexcel-eip97",
-		.data = (void *)EIP97IES_MRVL,
+		.data = &eip97ies_mrvl_data,
 	},
 	{
 		.compatible = "inside-secure,safexcel-eip197",
-		.data = (void *)EIP197B_MRVL,
+		.data = &eip197b_mrvl_data,
 	},
 	{},
 };
@@ -1862,7 +1878,7 @@ static int safexcel_pci_probe(struct pci_dev *pdev,
 		return -ENOMEM;
 
 	priv->dev = dev;
-	priv->version = (enum safexcel_eip_version)ent->driver_data;
+	priv->data = (struct safexcel_priv_data *)ent->driver_data;
 
 	pci_set_drvdata(pdev, priv);
 
@@ -1881,7 +1897,7 @@ static int safexcel_pci_probe(struct pci_dev *pdev,
 	}
 	priv->base = pcim_iomap_table(pdev)[0];
 
-	if (priv->version == EIP197_DEVBRD) {
+	if (priv->data->version == EIP197_DEVBRD) {
 		dev_dbg(dev, "Device identified as FPGA based development board - applying HW reset\n");
 
 		rc = pcim_iomap_regions(pdev, 4, "crypto_safexcel");
@@ -1949,7 +1965,7 @@ static const struct pci_device_id safexcel_pci_ids[] = {
 	{
 		PCI_DEVICE_SUB(PCI_VENDOR_ID_XILINX, 0x9038,
 			       0x16ae, 0xc522),
-		.driver_data = EIP197_DEVBRD,
+		.driver_data = (kernel_ulong_t)&eip197_devbrd_data,
 	},
 	{},
 };

drivers/crypto/inside-secure/safexcel.h

@@ -733,6 +733,10 @@ enum safexcel_eip_version {
 	EIP197_DEVBRD
 };
 
+struct safexcel_priv_data {
+	enum safexcel_eip_version version;
+};
+
 /* Priority we use for advertising our algorithms */
 #define SAFEXCEL_CRA_PRIORITY		300
 
@@ -815,7 +819,7 @@ struct safexcel_crypto_priv {
 	struct clk *reg_clk;
 	struct safexcel_config config;
 
-	enum safexcel_eip_version version;
+	struct safexcel_priv_data *data;
 	struct safexcel_register_offsets offsets;
 	struct safexcel_hwconfig hwconfig;
 	u32 flags;