diff options
| author | AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> | 2022-09-27 13:11:25 +0300 |
|---|---|---|
| committer | Chen-Yu Tsai <wenst@chromium.org> | 2022-09-29 07:10:03 +0300 |
| commit | f8fd4b550caca0413f958a0788ee1c0e215596ce (patch) | |
| tree | c5f711df7f4b04bcfe12f23b59d7444827b8a610 /drivers/clk/mediatek/clk-mt8195-topckgen.c | |
| parent | deeb2af77cf6bae26a51b70ba3a1ba968981a14a (diff) | |
| download | linux-f8fd4b550caca0413f958a0788ee1c0e215596ce.tar.xz | |
clk: mediatek: clk-mt8195-topckgen: Add GPU clock mux notifier
Following the changes done to MT8183, register a similar notifier
for MT8195 as well, allowing safe clockrate updates for the MFGPLL.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
Link: https://lore.kernel.org/r/20220927101128.44758-8-angelogioacchino.delregno@collabora.com
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Diffstat (limited to 'drivers/clk/mediatek/clk-mt8195-topckgen.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt8195-topckgen.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt8195-topckgen.c b/drivers/clk/mediatek/clk-mt8195-topckgen.c index e1c3ab4e146b..4dde23bece66 100644 --- a/drivers/clk/mediatek/clk-mt8195-topckgen.c +++ b/drivers/clk/mediatek/clk-mt8195-topckgen.c @@ -1217,6 +1217,21 @@ static const struct of_device_id of_match_clk_mt8195_topck[] = { {} }; +/* Register mux notifier for MFG mux */ +static int clk_mt8195_reg_mfg_mux_notifier(struct device *dev, struct clk *clk) +{ + struct mtk_mux_nb *mfg_mux_nb; + + mfg_mux_nb = devm_kzalloc(dev, sizeof(*mfg_mux_nb), GFP_KERNEL); + if (!mfg_mux_nb) + return -ENOMEM; + + mfg_mux_nb->ops = &clk_mux_ops; + mfg_mux_nb->bypass_index = 0; /* Bypass to TOP_MFG_CORE_TMP */ + + return devm_mtk_clk_mux_notifier_register(dev, clk, mfg_mux_nb); +} + static int clk_mt8195_topck_probe(struct platform_device *pdev) { struct clk_hw_onecell_data *top_clk_data; @@ -1256,6 +1271,11 @@ static int clk_mt8195_topck_probe(struct platform_device *pdev) goto unregister_muxes; top_clk_data->hws[CLK_TOP_MFG_CK_FAST_REF] = hw; + r = clk_mt8195_reg_mfg_mux_notifier(&pdev->dev, + top_clk_data->hws[CLK_TOP_MFG_CK_FAST_REF]->clk); + if (r) + goto unregister_muxes; + r = mtk_clk_register_composites(top_adj_divs, ARRAY_SIZE(top_adj_divs), base, &mt8195_clk_lock, top_clk_data); if (r) |