linux-kernel - Re: [PATCH 2/3] media: rkisp1: debug: Add register dump for IS

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Date:   Wed, 29 Nov 2023 20:05:42 +0000
From:   Kieran Bingham <kieran.bingham@...asonboard.com>
To:     Paul Elder <paul.elder@...asonboard.com>,
        linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org
Cc:     tomi.valkeinen@...asonboard.com, umang.jain@...asonboard.com,
        Paul Elder <paul.elder@...asonboard.com>,
        Dafna Hirschfeld <dafna@...tmail.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] media: rkisp1: debug: Add register dump for IS

Quoting Paul Elder (2023-11-29 09:29:55)
> Add register dump for the image stabilizer module to debugfs.
> 

Is the Image Stabilizer on all variants of the ISP?

I.e. is it valid register space on the RK3399 implementation?

If so then:
Reviewed-by: Kieran Bingham <kieran.bingham@...asonboard.com>

> Signed-off-by: Paul Elder <paul.elder@...asonboard.com>
> ---
>  .../platform/rockchip/rkisp1/rkisp1-debug.c    | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c
> index 71df3dc95e6f..f66b9754472e 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c
> @@ -139,6 +139,21 @@ static int rkisp1_debug_dump_mi_mp_show(struct seq_file *m, void *p)
>  }
>  DEFINE_SHOW_ATTRIBUTE(rkisp1_debug_dump_mi_mp);
>  
> +static int rkisp1_debug_dump_is_show(struct seq_file *m, void *p)
> +{
> +       static const struct rkisp1_debug_register registers[] = {
> +               RKISP1_DEBUG_SHD_REG(ISP_IS_H_OFFS),
> +               RKISP1_DEBUG_SHD_REG(ISP_IS_V_OFFS),
> +               RKISP1_DEBUG_SHD_REG(ISP_IS_H_SIZE),
> +               RKISP1_DEBUG_SHD_REG(ISP_IS_V_SIZE),

I expect so as you haven't added the register macros in this series so
they must already be there ...


> +               { /* Sentinel */ },
> +       };
> +       struct rkisp1_device *rkisp1 = m->private;
> +
> +       return rkisp1_debug_dump_regs(rkisp1, m, 0, registers);
> +}
> +DEFINE_SHOW_ATTRIBUTE(rkisp1_debug_dump_is);
> +
>  #define RKISP1_DEBUG_DATA_COUNT_BINS   32
>  #define RKISP1_DEBUG_DATA_COUNT_STEP   (4096 / RKISP1_DEBUG_DATA_COUNT_BINS)
>  
> @@ -235,6 +250,9 @@ void rkisp1_debug_init(struct rkisp1_device *rkisp1)
>  
>         debugfs_create_file("mi_mp", 0444, regs_dir, rkisp1,
>                             &rkisp1_debug_dump_mi_mp_fops);
> +
> +       debugfs_create_file("is", 0444, regs_dir, rkisp1,
> +                           &rkisp1_debug_dump_is_fops);
>  }
>  
>  void rkisp1_debug_cleanup(struct rkisp1_device *rkisp1)
> -- 
> 2.39.2
>