Commit Graph

6 Commits

Author SHA1 Message Date
AngeloGioacchino Del Regno
65c9ad77cb clk: mediatek: Add MODULE_DEVICE_TABLE() where appropriate
Add a MODULE_DEVICE_TABLE() on all clocks that can be built as modules
to allow auto-load at boot.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Miles Chen <miles.chen@mediatek.com>
Tested-by: Chen-Yu Tsai <wenst@chromium.org> # MT8183, MT8192, MT8195 Chromebooks
Link: https://lore.kernel.org/r/20230306140543.1813621-50-angelogioacchino.delregno@collabora.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2023-03-13 11:50:18 -07:00
AngeloGioacchino Del Regno
a451da86cf clk: mediatek: Add MODULE_LICENSE() where missing
In order to successfully build clock drivers as modules it is required
to declare a module license: add it where missing.
While at it, also change the MODULE_LICENSE text from "GPL v2" to
"GPL" (which means the same) on clk-mt7981-eth.c.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Miles Chen <miles.chen@mediatek.com>
Tested-by: Chen-Yu Tsai <wenst@chromium.org> # MT8183, MT8192, MT8195 Chromebooks
Link: https://lore.kernel.org/r/20230306140543.1813621-38-angelogioacchino.delregno@collabora.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2023-03-13 11:50:16 -07:00
AngeloGioacchino Del Regno
164d240de9 clk: mediatek: Switch to module_platform_driver() where possible
Lots of clock drivers have got both .probe() and a .remove() callbacks:
switch from builtin_platform_driver() to module_platform_driver() so
that we actually register the .remove() callback.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Miles Chen <miles.chen@mediatek.com>
Tested-by: Chen-Yu Tsai <wenst@chromium.org> # MT8183, MT8192, MT8195 Chromebooks
Link: https://lore.kernel.org/r/20230306140543.1813621-37-angelogioacchino.delregno@collabora.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2023-03-13 11:50:16 -07:00
Miles Chen
d36d697a00 clk: mediatek: mt8183: use mtk_clk_simple_probe to simplify driver
mtk_clk_simple_probe was added by Chun-Jie to simply common flow
of MediaTek clock drivers and ChenYu enhanced the error path of
mtk_clk_simple_probe and added mtk_clk_simple_remove.

Let's use mtk_clk_simple_probe and mtk_clk_simple_probe in other
MediaTek clock drivers as well.

Signed-off-by: Miles Chen <miles.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220922091841.4099-7-miles.chen@mediatek.com
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
2022-09-26 11:13:45 +08:00
Chen-Yu Tsai
609cc5e1a8 clk: mediatek: Replace 'struct clk' with 'struct clk_hw'
As part of the effort to improve the MediaTek clk drivers, the next step
is to switch from the old 'struct clk' clk prodivder APIs to the new
'struct clk_hw' ones.

Instead of adding new APIs to the MediaTek clk driver library mirroring
the existing ones, moving all drivers to the new APIs, and then removing
the old ones, just migrate everything at the same time. This involves
replacing 'struct clk' with 'struct clk_hw', and 'struct clk_onecell_data'
with 'struct clk_hw_onecell_data', and fixing up all usages.

For now, the clk_register() and co. usage is retained, with __clk_get_hw()
and (struct clk_hw *)->clk used to bridge the difference between the APIs.
These will be replaced in subsequent patches.

Fix up mtk_{alloc,free}_clk_data to use 'struct clk_hw' by hand. Fix up
all other affected call sites with the following coccinelle script.

    // Replace type
    @@
    @@
    - struct clk_onecell_data
    + struct clk_hw_onecell_data

    // Replace of_clk_add_provider() & of_clk_src_simple_get()
    @@
    expression NP, DATA;
    symbol of_clk_src_onecell_get;
    @@
    - of_clk_add_provider(
    + of_clk_add_hw_provider(
	    NP,
    -	of_clk_src_onecell_get,
    +	of_clk_hw_onecell_get,
	    DATA
      )

    // Fix register/unregister
    @@
    identifier CD;
    expression E;
    identifier fn =~ "unregister";
    @@
      fn(...,
    -    CD->clks[E]
    +    CD->hws[E]->clk
	 ,...
	);

    // Fix calls to clk_prepare_enable()
    @@
    identifier CD;
    expression E;
    @@
      clk_prepare_enable(
    - 		     CD->clks[E]
    + 		     CD->hws[E]->clk
      );

    // Fix pointer assignment
    @@
    identifier CD;
    identifier CLK;
    expression E;
    @@
    - CD->clks[E]
    + CD->hws[E]
      =
    (
    - CLK
    + __clk_get_hw(CLK)
    |
      ERR_PTR(...)
    )
      ;

    // Fix pointer usage
    @@
    identifier CD;
    expression E;
    @@
    - CD->clks[E]
    + CD->hws[E]

    // Fix mtk_clk_pll_get_base()
    @@
    symbol clk, hw, data;
    @@
      mtk_clk_pll_get_base(
    - 		       struct clk *clk,
    + 		       struct clk_hw *hw,
			   const struct mtk_pll_data *data
      ) {
    - struct clk_hw *hw = __clk_get_hw(clk);
      ...
      }

    // Fix mtk_clk_pll_get_base() usage
    @@
    identifier CD;
    expression E;
    @@
      mtk_clk_pll_get_base(
    -    CD->clks[E]
    +    CD->hws[E]->clk
	 ,...
      );

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Miles Chen <miles.chen@mediatek.com>
Link: https://lore.kernel.org/r/20220519071610.423372-4-wenst@chromium.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-05-19 16:57:56 -07:00
Weiyi Lu
acddfc2c26 clk: mediatek: Add MT8183 clock support
Add MT8183 clock support, include topckgen, apmixedsys,
infracfg, mcucfg and subsystem clocks.

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-11 13:29:19 -07:00