diff options
| author | AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> | 2023-01-20 12:20:37 +0300 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2023-01-31 03:45:12 +0300 |
| commit | b8eb1081d267708ba976525a1fe2162901b34f3a (patch) | |
| tree | eb1d3b3e74836c64f252e8f80f34a29797b36094 /drivers/clk/mediatek/clk-mtk.h | |
| parent | d3d6bd5e25cdc460df33ae1db4f051c4bdd3aa60 (diff) | |
| download | linux-b8eb1081d267708ba976525a1fe2162901b34f3a.tar.xz | |
clk: mediatek: clk-mtk: Add dummy clock ops
In order to migrate some (few) old clock drivers to the common
mtk_clk_simple_probe() function, add dummy clock ops to be able
to insert a dummy clock with ID 0 at the beginning of the list.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Miles Chen <miles.chen@mediatek.com>
Link: https://lore.kernel.org/r/20230120092053.182923-8-angelogioacchino.delregno@collabora.com
Tested-by: Mingming Su <mingming.su@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/mediatek/clk-mtk.h')
| -rw-r--r-- | drivers/clk/mediatek/clk-mtk.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mtk.h b/drivers/clk/mediatek/clk-mtk.h index cd97d2722380..ed329d8d7349 100644 --- a/drivers/clk/mediatek/clk-mtk.h +++ b/drivers/clk/mediatek/clk-mtk.h @@ -22,6 +22,25 @@ struct platform_device; +/* + * We need the clock IDs to start from zero but to maintain devicetree + * backwards compatibility we can't change bindings to start from zero. + * Only a few platforms are affected, so we solve issues given by the + * commonized MTK clocks probe function(s) by adding a dummy clock at + * the beginning where needed. + */ +#define CLK_DUMMY 0 + +extern const struct clk_ops mtk_clk_dummy_ops; +extern const struct mtk_gate_regs cg_regs_dummy; + +#define GATE_DUMMY(_id, _name) { \ + .id = _id, \ + .name = _name, \ + .regs = &cg_regs_dummy, \ + .ops = &mtk_clk_dummy_ops, \ + } + struct mtk_fixed_clk { int id; const char *name; |