diff options
| author | Rex-BC Chen <rex-bc.chen@mediatek.com> | 2022-05-23 12:33:34 +0300 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2022-06-16 03:24:12 +0300 |
| commit | 723e367114dec95abe8bba4118c4c7c3542a463f (patch) | |
| tree | c849163e4c82a05ead01bd55361052cc473c9cf5 /drivers/clk/mediatek/reset.c | |
| parent | 2d2a2900588cabe2ff3abd552d1683e5f1ce398b (diff) | |
| download | linux-723e367114dec95abe8bba4118c4c7c3542a463f.tar.xz | |
clk: mediatek: reset: Support nonsequence base offsets of reset registers
The bank offsets are not serial for all reset registers.
For example, there are five infra reset banks for MT8192: 0x120, 0x130,
0x140, 0x150 and 0x730.
To support this,
- Change reg_ofs to rst_bank_ofs which is a pointer to base offsets of
the reset register.
- Add a new define RST_NR_PER_BANK to define reset number for each
reset bank.
Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Tested-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20220523093346.28493-8-rex-bc.chen@mediatek.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/mediatek/reset.c')
| -rw-r--r-- | drivers/clk/mediatek/reset.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c index 47bc6b1842fd..11b2f74f121d 100644 --- a/drivers/clk/mediatek/reset.c +++ b/drivers/clk/mediatek/reset.c @@ -24,8 +24,8 @@ static int mtk_reset_update(struct reset_controller_dev *rcdev, unsigned int val = deassert ? 0 : ~0; return regmap_update_bits(data->regmap, - data->desc->reg_ofs + ((id / 32) << 2), - BIT(id % 32), val); + data->desc->rst_bank_ofs[id / RST_NR_PER_BANK], + BIT(id % RST_NR_PER_BANK), val); } static int mtk_reset_assert(struct reset_controller_dev *rcdev, @@ -58,8 +58,9 @@ static int mtk_reset_update_set_clr(struct reset_controller_dev *rcdev, unsigned int deassert_ofs = deassert ? 0x4 : 0; return regmap_write(data->regmap, - data->desc->reg_ofs + ((id / 32) << 4) + deassert_ofs, - BIT(id % 32)); + data->desc->rst_bank_ofs[id / RST_NR_PER_BANK] + + deassert_ofs, + BIT(id % RST_NR_PER_BANK)); } static int mtk_reset_assert_set_clr(struct reset_controller_dev *rcdev, @@ -135,7 +136,7 @@ void mtk_register_reset_controller(struct device_node *np, data->desc = desc; data->regmap = regmap; data->rcdev.owner = THIS_MODULE; - data->rcdev.nr_resets = desc->rst_bank_nr * 32; + data->rcdev.nr_resets = desc->rst_bank_nr * RST_NR_PER_BANK; data->rcdev.ops = rcops; data->rcdev.of_node = np; |