Commit Graph

4 Commits

Author SHA1 Message Date
Miles Chen f3e4e7350e clk: mediatek: mt2712: 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/20220922091841.4099-3-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
Thomas Gleixner 1802d0beec treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 655 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:41 -07:00
weiyi.lu@mediatek.com e2f744a82d clk: mediatek: Add MT2712 clock support
Add MT2712 clock support, include topckgen, apmixedsys,
infracfg, pericfg, mcucfg and subsystem clocks.

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
[sboyd@codeaurora.org: Static on top_clk_data]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-11-02 01:02:53 -07:00