Re: [PATCH v2 2/5] clk: mediatek: Refactor pll registration to pass device

On Thu, Oct 9, 2025 at 4:09 PM AngeloGioacchino Del Regno
[off-list ref] wrote:

Il 08/10/25 18:05, Nicolas Frattaroli ha scritto:

quoted

As it stands, mtk_clk_register_plls takes a struct device_node pointer
as its first argument. This is a tragic happenstance, as it's trivial to
get the device_node from a struct device, but the opposite not so much.
The struct device is a much more useful thing to have passed down.

Refactor mtk_clk_register_plls to take a struct device pointer instead
of a struct device_node pointer, and fix up all users of this function.

Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
---
  drivers/clk/mediatek/clk-mt2701.c            | 2 +-
  drivers/clk/mediatek/clk-mt2712-apmixedsys.c | 2 +-
  drivers/clk/mediatek/clk-mt6735-apmixedsys.c | 4 ++--
  drivers/clk/mediatek/clk-mt6765.c            | 2 +-
  drivers/clk/mediatek/clk-mt6779.c            | 2 +-
  drivers/clk/mediatek/clk-mt6797.c            | 2 +-
  drivers/clk/mediatek/clk-mt7622-apmixedsys.c | 2 +-
  drivers/clk/mediatek/clk-mt7629.c            | 2 +-
  drivers/clk/mediatek/clk-mt7981-apmixed.c    | 2 +-
  drivers/clk/mediatek/clk-mt7986-apmixed.c    | 2 +-
  drivers/clk/mediatek/clk-mt7988-apmixed.c    | 2 +-
  drivers/clk/mediatek/clk-mt8135-apmixedsys.c | 3 ++-
  drivers/clk/mediatek/clk-mt8167-apmixedsys.c | 2 +-
  drivers/clk/mediatek/clk-mt8183-apmixedsys.c | 2 +-
  drivers/clk/mediatek/clk-mt8188-apmixedsys.c | 2 +-
  drivers/clk/mediatek/clk-mt8195-apusys_pll.c | 3 ++-
  drivers/clk/mediatek/clk-mt8196-apmixedsys.c | 3 ++-
  drivers/clk/mediatek/clk-mt8196-mcu.c        | 2 +-
  drivers/clk/mediatek/clk-mt8196-mfg.c        | 2 +-
  drivers/clk/mediatek/clk-mt8196-vlpckgen.c   | 2 +-
  drivers/clk/mediatek/clk-mt8365-apmixedsys.c | 2 +-
  drivers/clk/mediatek/clk-mt8516-apmixedsys.c | 2 +-
  drivers/clk/mediatek/clk-pll.c               | 7 ++++---
  drivers/clk/mediatek/clk-pll.h               | 6 +++---
  24 files changed, 33 insertions(+), 29 deletions(-)

..snip..

quoted

diff --git a/drivers/clk/mediatek/clk-pll.h b/drivers/clk/mediatek/clk-pll.h
index d71c150ce83e4bb2fe78290c2d5570a90084246d..0e2b94b9cd4b56adceee3b04e9ab24c2526471da 100644
--- a/drivers/clk/mediatek/clk-pll.h
+++ b/drivers/clk/mediatek/clk-pll.h

@@ -78,9 +78,9 @@ struct mtk_clk_pll {
      const struct mtk_pll_data *data;
  };

There's a forward declaration of struct device_node in this header: with this
change, that becomes unused.

Please change that to a forward declaration of struct device instead.

While at it, I'd appreciate if you could either:
  A. Remove the forward declaration for `struct clk_hw_onecell_data` and for
     `struct clk_ops` (as both come from clk-provider.h - which this already
      includes);
    ...or...
  B. Remove the inclusion of clk-provider.h and keep the forward declarations.

Prefer (B) since no APIs from clk-provider.h are referenced in the header.
It is up to the implementation to directly include any and all headers it
needs.

ChenYu

After which:

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

quoted

-int mtk_clk_register_plls(struct device_node *node,
-                       const struct mtk_pll_data *plls, int num_plls,
-                       struct clk_hw_onecell_data *clk_data);
+int mtk_clk_register_plls(struct device *dev, const struct mtk_pll_data *plls,
+                       int num_plls, struct clk_hw_onecell_data *clk_data);
+
  void mtk_clk_unregister_plls(const struct mtk_pll_data *plls, int num_plls,
                           struct clk_hw_onecell_data *clk_data);