crypto: drivers - simplify getting .drvdata

We should get drvdata from struct device directly. Going via
platform_device is an unneeded step back and forth.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/drivers/crypto/picoxcell_crypto.c b/drivers/crypto/picoxcell_crypto.c
index a4df966..321d5e2 100644
--- a/drivers/crypto/picoxcell_crypto.c
+++ b/drivers/crypto/picoxcell_crypto.c
@@ -1169,8 +1169,7 @@ static void spacc_spacc_complete(unsigned long data)
 #ifdef CONFIG_PM
 static int spacc_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct spacc_engine *engine = platform_get_drvdata(pdev);
+	struct spacc_engine *engine = dev_get_drvdata(dev);
 
 	/*
 	 * We only support standby mode. All we have to do is gate the clock to
@@ -1184,8 +1183,7 @@ static int spacc_suspend(struct device *dev)
 
 static int spacc_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct spacc_engine *engine = platform_get_drvdata(pdev);
+	struct spacc_engine *engine = dev_get_drvdata(dev);
 
 	return clk_enable(engine->clk);
 }