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[PATCH 2/6] Staging: iio: cdc: ad7152.c: Prefer using the BIT macro

Started byShraddha Barke <shraddha.6596@gmail.com>
First post2015-09-10 06:20 +0200
Last post2015-09-10 08:10 +0200
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  [PATCH 2/6] Staging: iio: cdc: ad7152.c: Prefer using the BIT macro Shraddha Barke <shraddha.6596@gmail.com> - 2015-09-10 06:20 +0200
    Re: [PATCH 2/6] Staging: iio: cdc: ad7152.c: Prefer using the BIT  macro Julia Lawall <julia.lawall@lip6.fr> - 2015-09-10 08:10 +0200

#1221879 — [PATCH 2/6] Staging: iio: cdc: ad7152.c: Prefer using the BIT macro

FromShraddha Barke <shraddha.6596@gmail.com>
Date2015-09-10 06:20 +0200
Subject[PATCH 2/6] Staging: iio: cdc: ad7152.c: Prefer using the BIT macro
Message-ID<q71v3-7rK-13@gated-at.bofh.it>
This patch replaces bit shifting on 1 with the BIT(x) macro
as it's extensively used by other function in this driver.

This was done with coccinelle:
@@ int g; @@

-(1 << g)
+BIT(g)

Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
---
 drivers/staging/iio/cdc/ad7152.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/iio/cdc/ad7152.c b/drivers/staging/iio/cdc/ad7152.c
index 87110d9..ba44c0e 100644
--- a/drivers/staging/iio/cdc/ad7152.c
+++ b/drivers/staging/iio/cdc/ad7152.c
@@ -41,30 +41,30 @@
 #define AD7152_REG_CFG2			26
 
 /* Status Register Bit Designations (AD7152_REG_STATUS) */
-#define AD7152_STATUS_RDY1		(1 << 0)
-#define AD7152_STATUS_RDY2		(1 << 1)
-#define AD7152_STATUS_C1C2		(1 << 2)
-#define AD7152_STATUS_PWDN		(1 << 7)
+#define AD7152_STATUS_RDY1		BIT(0)
+#define AD7152_STATUS_RDY2		BIT(1)
+#define AD7152_STATUS_C1C2		BIT(2)
+#define AD7152_STATUS_PWDN		BIT(7)
 
 /* Setup Register Bit Designations (AD7152_REG_CHx_SETUP) */
-#define AD7152_SETUP_CAPDIFF		(1 << 5)
+#define AD7152_SETUP_CAPDIFF		BIT(5)
 #define AD7152_SETUP_RANGE_2pF		(0 << 6)
-#define AD7152_SETUP_RANGE_0_5pF	(1 << 6)
+#define AD7152_SETUP_RANGE_0_5pF	BIT(6)
 #define AD7152_SETUP_RANGE_1pF		(2 << 6)
 #define AD7152_SETUP_RANGE_4pF		(3 << 6)
 #define AD7152_SETUP_RANGE(x)		((x) << 6)
 
 /* Config Register Bit Designations (AD7152_REG_CFG) */
-#define AD7152_CONF_CH2EN		(1 << 3)
-#define AD7152_CONF_CH1EN		(1 << 4)
+#define AD7152_CONF_CH2EN		BIT(3)
+#define AD7152_CONF_CH1EN		BIT(4)
 #define AD7152_CONF_MODE_IDLE		(0 << 0)
-#define AD7152_CONF_MODE_CONT_CONV	(1 << 0)
+#define AD7152_CONF_MODE_CONT_CONV	BIT(0)
 #define AD7152_CONF_MODE_SINGLE_CONV	(2 << 0)
 #define AD7152_CONF_MODE_OFFS_CAL	(5 << 0)
 #define AD7152_CONF_MODE_GAIN_CAL	(6 << 0)
 
 /* Capdac Register Bit Designations (AD7152_REG_CAPDAC_XXX) */
-#define AD7152_CAPDAC_DACEN		(1 << 7)
+#define AD7152_CAPDAC_DACEN		BIT(7)
 #define AD7152_CAPDAC_DACP(x)		((x) & 0x1F)
 
 /* CFG2 Register Bit Designations (AD7152_REG_CFG2) */
-- 
2.1.4

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#1221933 — Re: [PATCH 2/6] Staging: iio: cdc: ad7152.c: Prefer using the BIT macro

FromJulia Lawall <julia.lawall@lip6.fr>
Date2015-09-10 08:10 +0200
SubjectRe: [PATCH 2/6] Staging: iio: cdc: ad7152.c: Prefer using the BIT macro
Message-ID<q73dv-1wK-7@gated-at.bofh.it>
In reply to#1221879
On Thu, 10 Sep 2015, Shraddha Barke wrote:

> This patch replaces bit shifting on 1 with the BIT(x) macro
> as it's extensively used by other function in this driver.

Don't use BIT in the mixed cases.

julia

> 
> This was done with coccinelle:
> @@ int g; @@
> 
> -(1 << g)
> +BIT(g)
> 
> Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
> ---
>  drivers/staging/iio/cdc/ad7152.c | 20 ++++++++++----------
>  1 file changed, 10 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/staging/iio/cdc/ad7152.c b/drivers/staging/iio/cdc/ad7152.c
> index 87110d9..ba44c0e 100644
> --- a/drivers/staging/iio/cdc/ad7152.c
> +++ b/drivers/staging/iio/cdc/ad7152.c
> @@ -41,30 +41,30 @@
>  #define AD7152_REG_CFG2			26
>  
>  /* Status Register Bit Designations (AD7152_REG_STATUS) */
> -#define AD7152_STATUS_RDY1		(1 << 0)
> -#define AD7152_STATUS_RDY2		(1 << 1)
> -#define AD7152_STATUS_C1C2		(1 << 2)
> -#define AD7152_STATUS_PWDN		(1 << 7)
> +#define AD7152_STATUS_RDY1		BIT(0)
> +#define AD7152_STATUS_RDY2		BIT(1)
> +#define AD7152_STATUS_C1C2		BIT(2)
> +#define AD7152_STATUS_PWDN		BIT(7)
>  
>  /* Setup Register Bit Designations (AD7152_REG_CHx_SETUP) */
> -#define AD7152_SETUP_CAPDIFF		(1 << 5)
> +#define AD7152_SETUP_CAPDIFF		BIT(5)
>  #define AD7152_SETUP_RANGE_2pF		(0 << 6)
> -#define AD7152_SETUP_RANGE_0_5pF	(1 << 6)
> +#define AD7152_SETUP_RANGE_0_5pF	BIT(6)
>  #define AD7152_SETUP_RANGE_1pF		(2 << 6)
>  #define AD7152_SETUP_RANGE_4pF		(3 << 6)
>  #define AD7152_SETUP_RANGE(x)		((x) << 6)
>  
>  /* Config Register Bit Designations (AD7152_REG_CFG) */
> -#define AD7152_CONF_CH2EN		(1 << 3)
> -#define AD7152_CONF_CH1EN		(1 << 4)
> +#define AD7152_CONF_CH2EN		BIT(3)
> +#define AD7152_CONF_CH1EN		BIT(4)
>  #define AD7152_CONF_MODE_IDLE		(0 << 0)
> -#define AD7152_CONF_MODE_CONT_CONV	(1 << 0)
> +#define AD7152_CONF_MODE_CONT_CONV	BIT(0)
>  #define AD7152_CONF_MODE_SINGLE_CONV	(2 << 0)
>  #define AD7152_CONF_MODE_OFFS_CAL	(5 << 0)
>  #define AD7152_CONF_MODE_GAIN_CAL	(6 << 0)
>  
>  /* Capdac Register Bit Designations (AD7152_REG_CAPDAC_XXX) */
> -#define AD7152_CAPDAC_DACEN		(1 << 7)
> +#define AD7152_CAPDAC_DACEN		BIT(7)
>  #define AD7152_CAPDAC_DACP(x)		((x) & 0x1F)
>  
>  /* CFG2 Register Bit Designations (AD7152_REG_CFG2) */
> -- 
> 2.1.4
> 
> 
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