linux-kernel - Re: [PATCH 1/2] drm: rcar-du: Refactor Feature and Quirk definitions

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Date:   Wed, 22 Aug 2018 12:42:38 +0200
From:   Simon Horman <horms@...ge.net.au>
To:     Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
Cc:     Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        David Airlie <airlied@...ux.ie>,
        dri-devel@...ts.freedesktop.org, linux-renesas-soc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] drm: rcar-du: Refactor Feature and Quirk definitions

On Mon, Aug 20, 2018 at 05:00:43PM +0100, Kieran Bingham wrote:
> These flags are represented by bit fields. To make this clear, utilise
> the BIT() macro.
> 
> Signed-off-by: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
> 
> ---
> This patch fails checkpatch's 80-char limit, due to the line comments
> extending across the 80-char boundary on RCAR_DU_FEATURE_EXT_CTRL_REGS
> 
> To preserve formatting - this warning has been ignored.

Reviewed-by: Simon Horman <horms+renesas@...ge.net.au>

> 
>  drivers/gpu/drm/rcar-du/rcar_du_drv.h | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h
> index b3a25e8e07d0..78ea20abfb30 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h
> +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h
> @@ -27,11 +27,11 @@ struct drm_device;
>  struct drm_fbdev_cma;
>  struct rcar_du_device;
>  
> -#define RCAR_DU_FEATURE_CRTC_IRQ_CLOCK	(1 << 0)	/* Per-CRTC IRQ and clock */
> -#define RCAR_DU_FEATURE_EXT_CTRL_REGS	(1 << 1)	/* Has extended control registers */
> -#define RCAR_DU_FEATURE_VSP1_SOURCE	(1 << 2)	/* Has inputs from VSP1 */
> +#define RCAR_DU_FEATURE_CRTC_IRQ_CLOCK	BIT(0)	/* Per-CRTC IRQ and clock */
> +#define RCAR_DU_FEATURE_EXT_CTRL_REGS	BIT(1)	/* Has extended control registers */
> +#define RCAR_DU_FEATURE_VSP1_SOURCE	BIT(2)	/* Has inputs from VSP1 */
>  
> -#define RCAR_DU_QUIRK_ALIGN_128B	(1 << 0)	/* Align pitches to 128 bytes */
> +#define RCAR_DU_QUIRK_ALIGN_128B	BIT(0)	/* Align pitches to 128 bytes */
>  
>  /*
>   * struct rcar_du_output_routing - Output routing specification
> -- 
> 2.17.1
>