linux-kernel - [PATCH v2 3/3] hwrng: imx-rngc - use BIT(x) for register bit defines

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Message-Id: <20230519160433.287161-4-martin@kaiser.cx>
Date:   Fri, 19 May 2023 18:04:33 +0200
From:   Martin Kaiser <martin@...ser.cx>
To:     Herbert Xu <herbert@...dor.apana.org.au>
Cc:     linux-crypto@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Martin Kaiser <martin@...ser.cx>
Subject: [PATCH v2 3/3] hwrng: imx-rngc - use BIT(x) for register bit defines

Rewrite the defines for register bits to use BIT(x) instead of writing
out the 32-bit number. This makes it easier to compare the code with the
register descriptions in the reference manual.

Signed-off-by: Martin Kaiser <martin@...ser.cx>
---
 drivers/char/hw_random/imx-rngc.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/char/hw_random/imx-rngc.c b/drivers/char/hw_random/imx-rngc.c
index b5f7b91bd13e..9c6988c658e2 100644
--- a/drivers/char/hw_random/imx-rngc.c
+++ b/drivers/char/hw_random/imx-rngc.c
@@ -35,19 +35,19 @@
 #define RNGC_TYPE_RNGC			0x2
 
 
-#define RNGC_CMD_CLR_ERR		0x00000020
-#define RNGC_CMD_CLR_INT		0x00000010
-#define RNGC_CMD_SEED			0x00000002
-#define RNGC_CMD_SELF_TEST		0x00000001
+#define RNGC_CMD_CLR_ERR		BIT(5)
+#define RNGC_CMD_CLR_INT		BIT(4)
+#define RNGC_CMD_SEED			BIT(1)
+#define RNGC_CMD_SELF_TEST		BIT(0)
 
-#define RNGC_CTRL_MASK_ERROR		0x00000040
-#define RNGC_CTRL_MASK_DONE		0x00000020
-#define RNGC_CTRL_AUTO_SEED		0x00000010
+#define RNGC_CTRL_MASK_ERROR		BIT(6)
+#define RNGC_CTRL_MASK_DONE		BIT(5)
+#define RNGC_CTRL_AUTO_SEED		BIT(4)
 
-#define RNGC_STATUS_ERROR		0x00010000
+#define RNGC_STATUS_ERROR		BIT(16)
 #define RNGC_STATUS_FIFO_LEVEL_MASK	GENMASK(11, 8)
-#define RNGC_STATUS_SEED_DONE		0x00000020
-#define RNGC_STATUS_ST_DONE		0x00000010
+#define RNGC_STATUS_SEED_DONE		BIT(5)
+#define RNGC_STATUS_ST_DONE		BIT(4)
 
 #define RNGC_ERROR_STATUS_STAT_ERR	0x00000008
 
-- 
2.30.2