linux-kernel - Re: [PATCH v6 4/4] drm/rockchip: Implement CRC debugfs API

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Date:   Mon, 6 Mar 2017 17:58:14 +0000
From:   Emil Velikov <emil.l.velikov@...il.com>
To:     Tomeu Vizoso <tomeu.vizoso@...labora.com>
Cc:     "Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>,
        Ville Syrjälä <ville.syrjala@...ux.intel.com>,
        Sean Paul <seanpaul@...omium.org>,
        Thierry Reding <thierry.reding@...il.com>,
        intel-gfx-trybot@...ts.freedesktop.org,
        Daniel Vetter <daniel.vetter@...el.com>,
        Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        Mark Yao <mark.yao@...k-chips.com>,
        Heiko Stuebner <heiko@...ech.de>,
        ML dri-devel <dri-devel@...ts.freedesktop.org>,
        linux-rockchip <linux-rockchip@...ts.infradead.org>,
        David Airlie <airlied@...ux.ie>,
        LAKML <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v6 4/4] drm/rockchip: Implement CRC debugfs API

Hi Tomeu,

Pardon for dropping in late.

On 3 March 2017 at 13:39, Tomeu Vizoso <tomeu.vizoso@...labora.com> wrote:
> Implement the .set_crc_source() callback and call the DP helpers
> accordingly to start and stop CRC capture.
>
> This is only done if this CRTC is currently using the eDP connector.
>
> v3: Remove superfluous check on rockchip_crtc_state->output_type
>
> v6: Remove superfluous variable
>
> Signed-off-by: Tomeu Vizoso <tomeu.vizoso@...labora.com>
> ---
>
>  drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 41 +++++++++++++++++++++++++++++
>  1 file changed, 41 insertions(+)
>
I think this won't fly (build).

Afaict analogix_dp-rockchip.c (as guarded by ROCKCHIP_ANALOGIX_DP) is
the only piece that can/should have DRM_ANALOGIX_DP code. Perhaps
adding a simple wrapper/stubs will be the easier option here ?

-Emil