linux-kernel - Re: [PATCH v2 08/26] drm/rockchip: dw-mipi-dsi: include bad value in error message

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Message-ID: <588454E7.80200@rock-chips.com>
Date:   Sun, 22 Jan 2017 14:44:55 +0800
From:   Chris Zhong <zyw@...k-chips.com>
To:     John Keeping <john@...anate.com>,
        Mark Yao <mark.yao@...k-chips.com>
Cc:     dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 08/26] drm/rockchip: dw-mipi-dsi: include bad value in
 error message

Hi John

Reviewed-by: Chris Zhong <zyw@...k-chips.com>


On 01/22/2017 12:31 AM, John Keeping wrote:
> As an aid to debugging.
>
> Signed-off-by: John Keeping <john@...anate.com>
> ---
> Unchanged in v2
> ---
>   drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
> index 2e6ad4591ebf..92dbc3e56603 100644
> --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
> +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
> @@ -644,7 +644,8 @@ static ssize_t dw_mipi_dsi_host_transfer(struct mipi_dsi_host *host,
>   		ret = dw_mipi_dsi_dcs_long_write(dsi, msg);
>   		break;
>   	default:
> -		dev_err(dsi->dev, "unsupported message type\n");
> +		dev_err(dsi->dev, "unsupported message type 0x%02x\n",
> +			msg->type);
>   		ret = -EINVAL;
>   	}
>