linux-kernel - Re: [PATCH 3/3] media: rkisp1: debug: Count completed frame interrupts

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Date:   Wed, 29 Nov 2023 20:06:48 +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 3/3] media: rkisp1: debug: Count completed frame interrupts

Quoting Paul Elder (2023-11-29 09:29:56)
> Add a counter to debugfs to count the number of frame-end interrupts.
> 

And I alway like having counters for debug ... so I like this.


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

> Signed-off-by: Paul Elder <paul.elder@...asonboard.com>
> ---
>  drivers/media/platform/rockchip/rkisp1/rkisp1-common.h | 1 +
>  drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c  | 2 ++
>  drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c    | 2 ++
>  3 files changed, 5 insertions(+)
> 
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> index 1e7cea1bea5e..be69173958a4 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> @@ -417,6 +417,7 @@ struct rkisp1_debug {
>         unsigned long stats_error;
>         unsigned long stop_timeout[2];
>         unsigned long frame_drop[2];
> +       unsigned long complete_frames;
>  };
>  
>  /*
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c
> index f66b9754472e..1b1edfd3ab6c 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c
> @@ -232,6 +232,8 @@ void rkisp1_debug_init(struct rkisp1_device *rkisp1)
>                              &debug->frame_drop[RKISP1_MAINPATH]);
>         debugfs_create_ulong("sp_frame_drop", 0444, debug->debugfs_dir,
>                              &debug->frame_drop[RKISP1_SELFPATH]);
> +       debugfs_create_ulong("complete_frames", 0444, debug->debugfs_dir,
> +                            &debug->complete_frames);
>         debugfs_create_file("input_status", 0444, debug->debugfs_dir, rkisp1,
>                             &rkisp1_debug_input_status_fops);
>  
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
> index 64a956b9f2d0..06cdb4edf19c 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
> @@ -991,6 +991,8 @@ irqreturn_t rkisp1_isp_isr(int irq, void *ctx)
>         if (status & RKISP1_CIF_ISP_FRAME) {
>                 u32 isp_ris;
>  
> +               rkisp1->debug.complete_frames++;
> +
>                 /* New frame from the sensor received */
>                 isp_ris = rkisp1_read(rkisp1, RKISP1_CIF_ISP_RIS);
>                 if (isp_ris & RKISP1_STATS_MEAS_MASK)
> -- 
> 2.39.2
>