Re: [PATCH v1 5/5] [media] mtk-mdp: Remove mtk_mdp_comp.id and supporting functionality

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Hi Eizan,

Thank you for your patch.

Missatge de Eizan Miyamoto <eizan@xxxxxxxxxxxx> del dia dt., 5 de maig
2020 a les 6:02:
>
> Since components are registered in a list, the numeric component id that
> specified a location in an array is not necessary.
>
> Signed-off-by: eizan@xxxxxxxxxxxx
> Signed-off-by: Eizan Miyamoto <eizan@xxxxxxxxxx>

Ditto

> ---
>
>  drivers/media/platform/mtk-mdp/mtk_mdp_comp.c | 60 +++----------------

This patch will conflict with this one [1]. It is already queued,
please rebase on top of it.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c?id=757570f11fa4b0ce5472a6583de6f06e996a8527


>  drivers/media/platform/mtk-mdp/mtk_mdp_comp.h | 19 +-----
>  drivers/media/platform/mtk-mdp/mtk_mdp_core.c | 10 +---
>  3 files changed, 11 insertions(+), 78 deletions(-)
>
> diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c b/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c
> index d4afed1363d5..362fff924aef 100644
> --- a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c
> +++ b/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c
> @@ -14,46 +14,6 @@
>  #include "mtk_mdp_comp.h"
>
>
> -static const char * const mtk_mdp_comp_stem[MTK_MDP_COMP_TYPE_MAX] = {
> -       "mdp_rdma",
> -       "mdp_rsz",
> -       "mdp_wdma",
> -       "mdp_wrot",
> -};
> -
> -struct mtk_mdp_comp_match {
> -       enum mtk_mdp_comp_type type;
> -       int alias_id;
> -};
> -
> -static const struct mtk_mdp_comp_match mtk_mdp_matches[MTK_MDP_COMP_ID_MAX] = {
> -       { MTK_MDP_RDMA, 0 },
> -       { MTK_MDP_RDMA, 1 },
> -       { MTK_MDP_RSZ,  0 },
> -       { MTK_MDP_RSZ,  1 },
> -       { MTK_MDP_RSZ,  2 },
> -       { MTK_MDP_WDMA, 0 },
> -       { MTK_MDP_WROT, 0 },
> -       { MTK_MDP_WROT, 1 },
> -};
> -
> -int mtk_mdp_comp_get_id(struct device *dev, struct device_node *node,
> -                       enum mtk_mdp_comp_type comp_type)
> -{
> -       int id = of_alias_get_id(node, mtk_mdp_comp_stem[comp_type]);
> -       int i;
> -
> -       for (i = 0; i < ARRAY_SIZE(mtk_mdp_matches); i++) {
> -               if (comp_type == mtk_mdp_matches[i].type &&
> -                   id == mtk_mdp_matches[i].alias_id)
> -                       return i;
> -       }
> -
> -       dev_err(dev, "Failed to get id. type: %d, id: %d\n", comp_type, id);
> -
> -       return -EINVAL;
> -}
> -
>  void mtk_mdp_comp_clock_on(struct device *dev, struct mtk_mdp_comp *comp)
>  {
>         int i, err;
> @@ -62,8 +22,8 @@ void mtk_mdp_comp_clock_on(struct device *dev, struct mtk_mdp_comp *comp)
>                 err = mtk_smi_larb_get(comp->larb_dev);
>                 if (err)
>                         dev_err(dev,
> -                               "failed to get larb, err %d. type:%d id:%d\n",
> -                               err, comp->type, comp->id);
> +                               "failed to get larb, err %d. type:%d\n",
> +                               err, comp->type);
>         }
>
>         for (i = 0; i < ARRAY_SIZE(comp->clk); i++) {
> @@ -72,8 +32,8 @@ void mtk_mdp_comp_clock_on(struct device *dev, struct mtk_mdp_comp *comp)
>                 err = clk_prepare_enable(comp->clk[i]);
>                 if (err)
>                         dev_err(dev,
> -                       "failed to enable clock, err %d. type:%d id:%d i:%d\n",
> -                               err, comp->type, comp->id, i);
> +                       "failed to enable clock, err %d. type:%d i:%d\n",
> +                               err, comp->type, i);
>         }
>  }
>
> @@ -92,21 +52,15 @@ void mtk_mdp_comp_clock_off(struct device *dev, struct mtk_mdp_comp *comp)
>  }
>
>  int mtk_mdp_comp_init(struct device *dev, struct device_node *node,
> -                     struct mtk_mdp_comp *comp, enum mtk_mdp_comp_id comp_id)
> +                     struct mtk_mdp_comp *comp,
> +                     enum mtk_mdp_comp_type comp_type)
>  {
>         struct device_node *larb_node;
>         struct platform_device *larb_pdev;
>         int i;
>
> -       if (comp_id < 0 || comp_id >= MTK_MDP_COMP_ID_MAX) {
> -               dev_err(dev, "Invalid comp_id %d\n", comp_id);
> -               return -EINVAL;
> -       }
> -
> -       INIT_LIST_HEAD(&comp->node);
>         comp->dev_node = of_node_get(node);
> -       comp->id = comp_id;
> -       comp->type = mtk_mdp_matches[comp_id].type;
> +       comp->type = comp_type;
>
>         for (i = 0; i < ARRAY_SIZE(comp->clk); i++) {
>                 comp->clk[i] = of_clk_get(node, i);
> diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.h b/drivers/media/platform/mtk-mdp/mtk_mdp_comp.h
> index 1f745891c6c3..1bf0242cce46 100644
> --- a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.h
> +++ b/drivers/media/platform/mtk-mdp/mtk_mdp_comp.h
> @@ -22,18 +22,6 @@ enum mtk_mdp_comp_type {
>         MTK_MDP_COMP_TYPE_MAX,
>  };
>
> -enum mtk_mdp_comp_id {
> -       MTK_MDP_COMP_RDMA0,
> -       MTK_MDP_COMP_RDMA1,
> -       MTK_MDP_COMP_RSZ0,
> -       MTK_MDP_COMP_RSZ1,
> -       MTK_MDP_COMP_RSZ2,
> -       MTK_MDP_COMP_WDMA,
> -       MTK_MDP_COMP_WROT0,
> -       MTK_MDP_COMP_WROT1,
> -       MTK_MDP_COMP_ID_MAX,
> -};
> -
>  /**
>   * struct mtk_mdp_comp - the MDP's function component data
>   * @node:      list node to track sibing MDP components
> @@ -41,7 +29,6 @@ enum mtk_mdp_comp_id {
>   * @clk:       clocks required for component
>   * @larb_dev:  SMI device required for component
>   * @type:      component type
> - * @id:                component ID
>   */
>  struct mtk_mdp_comp {
>         struct list_head        node;
> @@ -49,14 +36,12 @@ struct mtk_mdp_comp {
>         struct clk              *clk[2];
>         struct device           *larb_dev;
>         enum mtk_mdp_comp_type  type;
> -       enum mtk_mdp_comp_id    id;
>  };
>
>  int mtk_mdp_comp_init(struct device *dev, struct device_node *node,
> -                     struct mtk_mdp_comp *comp, enum mtk_mdp_comp_id comp_id);
> +                     struct mtk_mdp_comp *comp,
> +                     enum mtk_mdp_comp_type comp_type);
>  void mtk_mdp_comp_deinit(struct device *dev, struct mtk_mdp_comp *comp);
> -int mtk_mdp_comp_get_id(struct device *dev, struct device_node *node,
> -                       enum mtk_mdp_comp_type comp_type);
>  void mtk_mdp_comp_clock_on(struct device *dev, struct mtk_mdp_comp *comp);
>  void mtk_mdp_comp_clock_off(struct device *dev, struct mtk_mdp_comp *comp);
>
> diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_core.c b/drivers/media/platform/mtk-mdp/mtk_mdp_core.c
> index e6e702d9cb69..b1227c99569a 100644
> --- a/drivers/media/platform/mtk-mdp/mtk_mdp_core.c
> +++ b/drivers/media/platform/mtk-mdp/mtk_mdp_core.c
> @@ -137,7 +137,6 @@ static int mtk_mdp_probe(struct platform_device *pdev)
>         for_each_child_of_node(parent, node) {
>                 const struct of_device_id *of_id;
>                 enum mtk_mdp_comp_type comp_type;
> -               int comp_id;
>
>                 of_id = of_match_node(mtk_mdp_comp_dt_ids, node);
>                 if (!of_id)
> @@ -150,12 +149,7 @@ static int mtk_mdp_probe(struct platform_device *pdev)
>                 }
>
>                 comp_type = (enum mtk_mdp_comp_type)of_id->data;
> -               comp_id = mtk_mdp_comp_get_id(dev, node, comp_type);
> -               if (comp_id < 0) {
> -                       dev_warn(dev, "Skipping unknown component %pOF\n",
> -                                node);
> -                       continue;
> -               }
> +
>
>                 comp = devm_kzalloc(dev, sizeof(*comp), GFP_KERNEL);
>                 if (!comp) {
> @@ -164,7 +158,7 @@ static int mtk_mdp_probe(struct platform_device *pdev)
>                         goto err_comp;
>                 }
>
> -               ret = mtk_mdp_comp_init(dev, node, comp, comp_id);
> +               ret = mtk_mdp_comp_init(dev, node, comp, comp_type);
>                 if (ret) {
>                         of_node_put(node);
>                         goto err_comp;
> --
> 2.26.2.526.g744177e7f7-goog
>
>
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> Linux-mediatek@xxxxxxxxxxxxxxxxxxx
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