diff options
| author | AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> | 2022-10-24 13:23:07 +0300 |
|---|---|---|
| committer | Chen-Yu Tsai <wenst@chromium.org> | 2022-11-29 09:42:41 +0300 |
| commit | 3256ea4f6582d2cb9b63ad96451957c217a52582 (patch) | |
| tree | 55096056d3d6184f68acf06da5e2f5faddfb7a33 /drivers/clk/mediatek | |
| parent | ecc639ddbe0d7bf1c66f6c69ee54ee005484d886 (diff) | |
| download | linux-3256ea4f6582d2cb9b63ad96451957c217a52582.tar.xz | |
clk: mediatek: mt8186-topckgen: Add GPU clock mux notifier
Following the changes done to MT8183, MT8192, MT8195, register a
clock notifier for MT8186, allowing safe clockrate updates for the
MFG PLL.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20221024102307.33722-11-angelogioacchino.delregno@collabora.com
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Diffstat (limited to 'drivers/clk/mediatek')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt8186-topckgen.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt8186-topckgen.c b/drivers/clk/mediatek/clk-mt8186-topckgen.c index 62b5ff4a5723..c2beda7ef976 100644 --- a/drivers/clk/mediatek/clk-mt8186-topckgen.c +++ b/drivers/clk/mediatek/clk-mt8186-topckgen.c @@ -689,6 +689,28 @@ static const struct of_device_id of_match_clk_mt8186_topck[] = { {} }; +/* Register mux notifier for MFG mux */ +static int clk_mt8186_reg_mfg_mux_notifier(struct device *dev, struct clk *clk) +{ + struct mtk_mux_nb *mfg_mux_nb; + int i; + + mfg_mux_nb = devm_kzalloc(dev, sizeof(*mfg_mux_nb), GFP_KERNEL); + if (!mfg_mux_nb) + return -ENOMEM; + + for (i = 0; i < ARRAY_SIZE(top_mtk_muxes); i++) + if (top_mtk_muxes[i].id == CLK_TOP_MFG) + break; + if (i == ARRAY_SIZE(top_mtk_muxes)) + return -EINVAL; + + mfg_mux_nb->ops = top_mtk_muxes[i].ops; + mfg_mux_nb->bypass_index = 0; /* Bypass to 26M crystal */ + + return devm_mtk_clk_mux_notifier_register(dev, clk, mfg_mux_nb); +} + static int clk_mt8186_topck_probe(struct platform_device *pdev) { struct clk_hw_onecell_data *clk_data; @@ -730,6 +752,11 @@ static int clk_mt8186_topck_probe(struct platform_device *pdev) if (r) goto unregister_composite_muxes; + r = clk_mt8186_reg_mfg_mux_notifier(&pdev->dev, + clk_data->hws[CLK_TOP_MFG]->clk); + if (r) + goto unregister_composite_divs; + r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data); if (r) goto unregister_composite_divs; |