linux-kernel - Re: [PATCH] drm/msm: Use generic bulk clock function

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Message-ID: <CAF6AEGvGWWZz718AAyQmKr7fVoi4EU_tj6xVC7JsvfY+ZvMO0Q@mail.gmail.com>
Date:   Thu, 25 Jul 2019 10:51:38 -0700
From:   Rob Clark <robdclark@...il.com>
To:     Jordan Crouse <jcrouse@...eaurora.org>
Cc:     freedreno <freedreno@...ts.freedesktop.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        Sean Paul <sean@...rly.run>,
        Stephen Boyd <swboyd@...omium.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Sharat Masetty <smasetty@...eaurora.org>,
        Andy Gross <andy.gross@...aro.org>,
        Douglas Anderson <dianders@...omium.org>,
        David Airlie <airlied@...ux.ie>,
        Mamta Shukla <mamtashukla555@...il.com>,
        Daniel Vetter <daniel@...ll.ch>
Subject: Re: [PATCH] drm/msm: Use generic bulk clock function

On Thu, Jul 25, 2019 at 9:54 AM Jordan Crouse <jcrouse@...eaurora.org> wrote:
>
> Remove the homebrewed bulk clock get function and replace it with
> devm_clk_bulk_get_all().
>
> Signed-off-by: Jordan Crouse <jcrouse@...eaurora.org>

nice cleanup

Reviewed-by: Rob Clark <robdclark@...il.com>

> ---
>
>  drivers/gpu/drm/msm/adreno/a6xx_gmu.c |  2 +-
>  drivers/gpu/drm/msm/msm_drv.c         | 40 -----------------------------------
>  drivers/gpu/drm/msm/msm_drv.h         |  1 -
>  drivers/gpu/drm/msm/msm_gpu.c         |  2 +-
>  4 files changed, 2 insertions(+), 43 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
> index 2ca470e..85f14fe 100644
> --- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
> +++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
> @@ -1172,7 +1172,7 @@ static int a6xx_gmu_pwrlevels_probe(struct a6xx_gmu *gmu)
>
>  static int a6xx_gmu_clocks_probe(struct a6xx_gmu *gmu)
>  {
> -       int ret = msm_clk_bulk_get(gmu->dev, &gmu->clocks);
> +       int ret = devm_clk_bulk_get_all(gmu->dev, &gmu->clocks);
>
>         if (ret < 1)
>                 return ret;
> diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
> index 0e0fca1..96fe24c 100644
> --- a/drivers/gpu/drm/msm/msm_drv.c
> +++ b/drivers/gpu/drm/msm/msm_drv.c
> @@ -75,46 +75,6 @@ module_param(modeset, bool, 0600);
>   * Util/helpers:
>   */
>
> -int msm_clk_bulk_get(struct device *dev, struct clk_bulk_data **bulk)
> -{
> -       struct property *prop;
> -       const char *name;
> -       struct clk_bulk_data *local;
> -       int i = 0, ret, count;
> -
> -       count = of_property_count_strings(dev->of_node, "clock-names");
> -       if (count < 1)
> -               return 0;
> -
> -       local = devm_kcalloc(dev, sizeof(struct clk_bulk_data *),
> -               count, GFP_KERNEL);
> -       if (!local)
> -               return -ENOMEM;
> -
> -       of_property_for_each_string(dev->of_node, "clock-names", prop, name) {
> -               local[i].id = devm_kstrdup(dev, name, GFP_KERNEL);
> -               if (!local[i].id) {
> -                       devm_kfree(dev, local);
> -                       return -ENOMEM;
> -               }
> -
> -               i++;
> -       }
> -
> -       ret = devm_clk_bulk_get(dev, count, local);
> -
> -       if (ret) {
> -               for (i = 0; i < count; i++)
> -                       devm_kfree(dev, (void *) local[i].id);
> -               devm_kfree(dev, local);
> -
> -               return ret;
> -       }
> -
> -       *bulk = local;
> -       return count;
> -}
> -
>  struct clk *msm_clk_bulk_get_clock(struct clk_bulk_data *bulk, int count,
>                 const char *name)
>  {
> diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
> index ee7b512..843c68f 100644
> --- a/drivers/gpu/drm/msm/msm_drv.h
> +++ b/drivers/gpu/drm/msm/msm_drv.h
> @@ -399,7 +399,6 @@ static inline void msm_perf_debugfs_cleanup(struct msm_drm_private *priv) {}
>  #endif
>
>  struct clk *msm_clk_get(struct platform_device *pdev, const char *name);
> -int msm_clk_bulk_get(struct device *dev, struct clk_bulk_data **bulk);
>
>  struct clk *msm_clk_bulk_get_clock(struct clk_bulk_data *bulk, int count,
>         const char *name);
> diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
> index 4edb874..445a9f8 100644
> --- a/drivers/gpu/drm/msm/msm_gpu.c
> +++ b/drivers/gpu/drm/msm/msm_gpu.c
> @@ -783,7 +783,7 @@ static irqreturn_t irq_handler(int irq, void *data)
>
>  static int get_clocks(struct platform_device *pdev, struct msm_gpu *gpu)
>  {
> -       int ret = msm_clk_bulk_get(&pdev->dev, &gpu->grp_clks);
> +       int ret = devm_clk_bulk_get_all(&pdev->dev, &gpu->grp_clks);
>
>         if (ret < 1) {
>                 gpu->nr_clocks = 0;
> --
> 2.7.4
>