linux-kernel - Re: [PATCH v3 5/7] drm/mediatek: mtk

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Message-ID: <CAAOTY_9Gc9uCtfcp+qo=KnVOYfyjw4rDpe15A1q6G2A-iXpSow@mail.gmail.com>
Date:   Fri, 1 May 2020 21:24:34 +0800
From:   Chun-Kuang Hu <chunkuang.hu@...nel.org>
To:     Enric Balletbo i Serra <enric.balletbo@...labora.com>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>,
        Collabora Kernel ML <kernel@...labora.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Nicolas Boichat <drinkcat@...omium.org>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        DRI Development <dri-devel@...ts.freedesktop.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH v3 5/7] drm/mediatek: mtk_dsi: Use simple encoder

Hi, Enric:

Enric Balletbo i Serra <enric.balletbo@...labora.com> 於 2020年4月17日 週五 下午11:06寫道：
>
> The mtk_dsi driver uses an empty implementation for its encoder. Replace
> the code with the generic simple encoder.

Reviewed-by: Chun-Kuang Hu <chunkuang.hu@...nel.org>

>
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> ---
>
> Changes in v3: None
> Changes in v2: None
>
>  drivers/gpu/drm/mediatek/mtk_dsi.c | 14 +++-----------
>  1 file changed, 3 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
> index 869ae0a2e9f8..d68694ff00dc 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dsi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
> @@ -22,6 +22,7 @@
>  #include <drm/drm_panel.h>
>  #include <drm/drm_print.h>
>  #include <drm/drm_probe_helper.h>
> +#include <drm/drm_simple_kms_helper.h>
>
>  #include "mtk_drm_ddp_comp.h"
>
> @@ -788,15 +789,6 @@ static void mtk_output_dsi_disable(struct mtk_dsi *dsi)
>         dsi->enabled = false;
>  }
>
> -static void mtk_dsi_encoder_destroy(struct drm_encoder *encoder)
> -{
> -       drm_encoder_cleanup(encoder);
> -}
> -
> -static const struct drm_encoder_funcs mtk_dsi_encoder_funcs = {
> -       .destroy = mtk_dsi_encoder_destroy,
> -};
> -
>  static int mtk_dsi_create_conn_enc(struct drm_device *drm, struct mtk_dsi *dsi);
>  static void mtk_dsi_destroy_conn_enc(struct mtk_dsi *dsi);
>
> @@ -1140,8 +1132,8 @@ static int mtk_dsi_encoder_init(struct drm_device *drm, struct mtk_dsi *dsi)
>  {
>         int ret;
>
> -       ret = drm_encoder_init(drm, &dsi->encoder, &mtk_dsi_encoder_funcs,
> -                              DRM_MODE_ENCODER_DSI, NULL);
> +       ret = drm_simple_encoder_init(drm, &dsi->encoder,
> +                                     DRM_MODE_ENCODER_DSI);
>         if (ret) {
>                 DRM_ERROR("Failed to encoder init to drm\n");
>                 return ret;
> --
> 2.25.1
>