Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Message-ID: <38720b56-df8e-d25a-0e6f-ca6e1fb3df26@collabora.com>
Date:   Thu, 3 Aug 2023 16:18:12 +0300
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101
 Thunderbird/102.13.0
Subject: Re: [PATCH v8 2/8] drm/mediatevk: Add crtc path enum for all_drm_priv
 array
Content-Language: en-US
To:     "Jason-JH.Lin" <jason-jh.lin@mediatek.com>,
        Chun-Kuang Hu <chunkuang.hu@kernel.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>
Cc:     Matthias Brugger <matthias.bgg@gmail.com>,
        Jason-ch Chen <jason-ch.chen@mediatek.com>,
        Johnson Wang <johnson.wang@mediatek.com>,
        Singo Chang <singo.chang@mediatek.com>,
        Nancy Lin <nancy.lin@mediatek.com>,
        Shawn Sung <shawn.sung@mediatek.com>,
        dri-devel@lists.freedesktop.org,
        linux-mediatek@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Project_Global_Chrome_Upstream_Group@mediatek.com
References: <20230802144802.751-1-jason-jh.lin@mediatek.com>
 <20230802144802.751-3-jason-jh.lin@mediatek.com>
From:   Eugen Hristev <eugen.hristev@collabora.com>
In-Reply-To: <20230802144802.751-3-jason-jh.lin@mediatek.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Precedence: bulk

On 8/2/23 17:47, Jason-JH.Lin wrote:
> Add mtk_drm_crtc_path enum for eatch display path.

Typo: each

> 
> Instead of using array index of all_drm_priv in mtk_drm_kms_init(),
> mtk_drm_crtc_path enum can make more readable.

can make *code* more readable ?
> 
> Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com>
> ---
>   drivers/gpu/drm/mediatek/mtk_drm_drv.c | 6 +++---
>   drivers/gpu/drm/mediatek/mtk_drm_drv.h | 8 +++++++-
>   2 files changed, 10 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> index 249c9fd6347e..89a38561ba27 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> @@ -465,21 +465,21 @@ static int mtk_drm_kms_init(struct drm_device *drm)
>   		for (j = 0; j < private->data->mmsys_dev_num; j++) {
>   			priv_n = private->all_drm_private[j];
>   
> -			if (i == 0 && priv_n->data->main_len) {
> +			if (i == CRTC_MAIN && priv_n->data->main_len) {
>   				ret = mtk_drm_crtc_create(drm, priv_n->data->main_path,
>   							  priv_n->data->main_len, j);
>   				if (ret)
>   					goto err_component_unbind;
>   
>   				continue;
> -			} else if (i == 1 && priv_n->data->ext_len) {
> +			} else if (i == CRTC_EXT && priv_n->data->ext_len) {
>   				ret = mtk_drm_crtc_create(drm, priv_n->data->ext_path,
>   							  priv_n->data->ext_len, j);
>   				if (ret)
>   					goto err_component_unbind;
>   
>   				continue;
> -			} else if (i == 2 && priv_n->data->third_len) {
> +			} else if (i == CRTC_THIRD && priv_n->data->third_len) {
>   				ret = mtk_drm_crtc_create(drm, priv_n->data->third_path,
>   							  priv_n->data->third_len, j);
>   				if (ret)
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
> index eb2fd45941f0..f4de8bb27685 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
> @@ -9,11 +9,17 @@
>   #include <linux/io.h>
>   #include "mtk_drm_ddp_comp.h"
>   
> -#define MAX_CRTC	3
>   #define MAX_CONNECTOR	2
>   #define DDP_COMPONENT_DRM_OVL_ADAPTOR (DDP_COMPONENT_ID_MAX + 1)
>   #define DDP_COMPONENT_DRM_ID_MAX (DDP_COMPONENT_DRM_OVL_ADAPTOR + 1)
>   
> +enum mtk_drm_crtc_path {
> +	CRTC_MAIN,
> +	CRTC_EXT,
> +	CRTC_THIRD,
> +	MAX_CRTC,
> +};
> +
>   struct device;
>   struct device_node;
>   struct drm_crtc;