[PATCH 1/2] i2c: rcar: refactor private flags

[Wolfram Sang <wsa+renesas@sang-engineering.com>]

Use BIT macro to avoid shift-31-problem, indent a little more and use
GENMASK to make it easier to add new flags.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
 drivers/i2c/busses/i2c-rcar.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 791a4aa34fdd..a9f1880e2eae 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -19,6 +19,7 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  */
+#include <linux/bitops.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/dmaengine.h>
@@ -112,9 +113,9 @@
 #define ID_ARBLOST	(1 << 3)
 #define ID_NACK		(1 << 4)
 /* persistent flags */
-#define ID_P_NO_RXDMA	(1 << 30) /* HW forbids RXDMA sometimes */
-#define ID_P_PM_BLOCKED	(1 << 31)
-#define ID_P_MASK	(ID_P_PM_BLOCKED | ID_P_NO_RXDMA)
+#define ID_P_NO_RXDMA		BIT(30) /* HW forbids RXDMA sometimes */
+#define ID_P_PM_BLOCKED		BIT(31)
+#define ID_P_MASK		GENMASK(31, 30)
 
 enum rcar_i2c_type {
 	I2C_RCAR_GEN1,
-- 
2.11.0