media: tegra-video: Use BIT macro in tegra20.c

[PATCH] media: tegra-video: Use BIT macro in tegra20.c

Posted by Faisal Mukhtar 2 days, 6 hours ago

Fix checkpatch.pl warnings by replacing explicit
bit shift (1 << n) with the BIT macro, to better
adhere to the kernel coding style.

Signed-off-by: Faisal Mukhtar <mukhtarfaisal03@gmail.com>
---
 drivers/staging/media/tegra-video/tegra20.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/media/tegra-video/tegra20.c b/drivers/staging/media/tegra-video/tegra20.c
index e513e6ccb776..cdfd9f276d11 100644
--- a/drivers/staging/media/tegra-video/tegra20.c
+++ b/drivers/staging/media/tegra-video/tegra20.c
@@ -177,15 +177,15 @@ enum tegra_vi_out {
 #define       CSI_SKIP_PACKET_THRESHOLD(n)		(((n) & 0xff) << 16)
 #define TEGRA_CSI_PIXEL_STREAM_CONTROL0(n)		(0x0018 + (n) * 0x2c)
 #define       CSI_PP_PAD_FRAME_PAD0S			(0 << 28)
-#define       CSI_PP_PAD_FRAME_PAD1S			(1 << 28)
+#define       CSI_PP_PAD_FRAME_PAD1S			BIT(28)
 #define       CSI_PP_PAD_FRAME_NOPAD			(2 << 28)
 #define       CSI_PP_HEADER_EC_ENABLE			BIT(27)
 #define       CSI_PP_PAD_SHORT_LINE_PAD0S		(0 << 24)
-#define       CSI_PP_PAD_SHORT_LINE_PAD1S		(1 << 24)
+#define       CSI_PP_PAD_SHORT_LINE_PAD1S		BIT(24)
 #define       CSI_PP_PAD_SHORT_LINE_NOPAD		(2 << 24)
 #define       CSI_PP_EMBEDDED_DATA_EMBEDDED		BIT(20)
 #define       CSI_PP_OUTPUT_FORMAT_ARBITRARY		(0 << 16)
-#define       CSI_PP_OUTPUT_FORMAT_PIXEL		(1 << 16)
+#define       CSI_PP_OUTPUT_FORMAT_PIXEL		BIT(16)
 #define       CSI_PP_OUTPUT_FORMAT_PIXEL_REP		(2 << 16)
 #define       CSI_PP_OUTPUT_FORMAT_STORE		(3 << 16)
 #define       CSI_PP_VIRTUAL_CHANNEL_ID(n)		(((n) - 1) << 14)
-- 
2.53.0

Re: [PATCH] media: tegra-video: Use BIT macro in tegra20.c

Posted by Mikko Perttunen 1 day, 18 hours ago

On Thursday, July 23, 2026 12:40 AM Faisal Mukhtar wrote:
> Fix checkpatch.pl warnings by replacing explicit
> bit shift (1 << n) with the BIT macro, to better
> adhere to the kernel coding style.
> 
> Signed-off-by: Faisal Mukhtar <mukhtarfaisal03@gmail.com>
> ---
>  drivers/staging/media/tegra-video/tegra20.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/staging/media/tegra-video/tegra20.c b/drivers/staging/media/tegra-video/tegra20.c
> index e513e6ccb776..cdfd9f276d11 100644
> --- a/drivers/staging/media/tegra-video/tegra20.c
> +++ b/drivers/staging/media/tegra-video/tegra20.c
> @@ -177,15 +177,15 @@ enum tegra_vi_out {
>  #define       CSI_SKIP_PACKET_THRESHOLD(n)		(((n) & 0xff) << 16)
>  #define TEGRA_CSI_PIXEL_STREAM_CONTROL0(n)		(0x0018 + (n) * 0x2c)
>  #define       CSI_PP_PAD_FRAME_PAD0S			(0 << 28)
> -#define       CSI_PP_PAD_FRAME_PAD1S			(1 << 28)
> +#define       CSI_PP_PAD_FRAME_PAD1S			BIT(28)
>  #define       CSI_PP_PAD_FRAME_NOPAD			(2 << 28)
>  #define       CSI_PP_HEADER_EC_ENABLE			BIT(27)
>  #define       CSI_PP_PAD_SHORT_LINE_PAD0S		(0 << 24)
> -#define       CSI_PP_PAD_SHORT_LINE_PAD1S		(1 << 24)
> +#define       CSI_PP_PAD_SHORT_LINE_PAD1S		BIT(24)
>  #define       CSI_PP_PAD_SHORT_LINE_NOPAD		(2 << 24)
>  #define       CSI_PP_EMBEDDED_DATA_EMBEDDED		BIT(20)
>  #define       CSI_PP_OUTPUT_FORMAT_ARBITRARY		(0 << 16)
> -#define       CSI_PP_OUTPUT_FORMAT_PIXEL		(1 << 16)
> +#define       CSI_PP_OUTPUT_FORMAT_PIXEL		BIT(16)
>  #define       CSI_PP_OUTPUT_FORMAT_PIXEL_REP		(2 << 16)
>  #define       CSI_PP_OUTPUT_FORMAT_STORE		(3 << 16)
>  #define       CSI_PP_VIRTUAL_CHANNEL_ID(n)		(((n) - 1) << 14)
> -- 
> 2.53.0
> 
> 

BIT is only used for true/false fields. These are not that.

Mikko